strace.c revision bf79f2e16b090ffe59cd1e1820935680a2da7b78
176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman/* 276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl> 376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl> 476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com> 54dc8a2aec63e4fb5ee2688544c4de323ed5de3efWichert Akkerman * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl> 676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * All rights reserved. 776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Redistribution and use in source and binary forms, with or without 976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * modification, are permitted provided that the following conditions 1076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * are met: 1176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 1. Redistributions of source code must retain the above copyright 1276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * notice, this list of conditions and the following disclaimer. 1376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 2. Redistributions in binary form must reproduce the above copyright 1476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * notice, this list of conditions and the following disclaimer in the 1576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * documentation and/or other materials provided with the distribution. 1676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 3. The name of the author may not be used to endorse or promote products 1776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * derived from this software without specific prior written permission. 1876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 1976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 2076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 2176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 3076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * $Id$ 3176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 3276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 332ee6e45f36566e8735b35ffad40bfcc626a25a98Wichert Akkerman#include <sys/types.h> 3476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include "defs.h" 3576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 3676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <signal.h> 3776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <errno.h> 3876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <sys/param.h> 3976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <fcntl.h> 4076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <sys/resource.h> 4176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <sys/wait.h> 4276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <sys/stat.h> 4376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <pwd.h> 4476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <grp.h> 4576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <string.h> 4676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 47bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 48bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#include <poll.h> 49bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif 50bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman 5176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 5276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <sys/stropts.h> 53ea78f0f77185f7d6d0b2055805139d96e1be816cWichert Akkerman#ifdef HAVE_MP_PROCFS 549ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#include <sys/uio.h> 559ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#endif 5676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 5776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 5876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint debug = 0, followfork = 0, followvfork = 0, interactive = 0; 5976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint rflag = 0, tflag = 0, dtime = 0, cflag = 0; 6076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint iflag = 0, xflag = 0, qflag = 0; 6176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint pflag_seen = 0; 6276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 6376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchar *username = NULL; 6476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanuid_t run_uid; 6576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermangid_t run_gid; 6676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 6776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint acolumn = DEFAULT_ACOLUMN; 6876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint max_strlen = DEFAULT_STRLEN; 6976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchar *outfname = NULL; 7076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert AkkermanFILE *outf; 7176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb tcbtab[MAX_PROCS]; 7276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint nprocs; 7376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchar *progname; 7476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanextern char version[]; 7576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanextern char **environ; 7676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 7776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic struct tcb *pid2tcb P((int pid)); 7876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int trace P((void)); 7976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void cleanup P((void)); 8076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void interrupt P((int sig)); 8176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic sigset_t empty_set, blocked_set; 8276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 8376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef HAVE_SIG_ATOMIC_T 8476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic volatile sig_atomic_t interrupted; 8576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !HAVE_SIG_ATOMIC_T */ 8676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef __STDC__ 8776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic volatile int interrupted; 8876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !__STDC__ */ 8976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int interrupted; 9076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !__STDC__ */ 9176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_SIG_ATOMIC_T */ 9276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 93bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 9476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 9576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic struct tcb *pfd2tcb P((int pfd)); 9676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void reaper P((int sig)); 9776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void rebuild_pollv P((void)); 98e68d61c7d6dcf986d32c462e533ea46f85183db8Wichert Akkermanstruct pollfd pollv[MAX_PROCS]; 9976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 10076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 10176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 10276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void proc_poll_open P((void)); 10376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void proc_poller P((int pfd)); 10476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 10576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct proc_pollfd { 10676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int fd; 10776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int revents; 10876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int pid; 10976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman}; 11076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 11176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int poller_pid; 11276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int proc_poll_pipe[2] = { -1, -1 }; 11376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 11476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 11576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 116ea78f0f77185f7d6d0b2055805139d96e1be816cWichert Akkerman#ifdef HAVE_MP_PROCFS 1179ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#define POLLWANT POLLWRNORM 1189ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#else 1199ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#define POLLWANT POLLPRI 1209ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#endif 121bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* USE_PROCFS */ 12276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 12376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 12476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanusage(ofp, exitval) 12576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert AkkermanFILE *ofp; 12676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint exitval; 12776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 12876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(ofp, "\ 12976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanusage: strace [-dffhiqrtttTvVxx] [-a column] [-e expr] ... [-o file]\n\ 13076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman [-p pid] ... [-s strsize] [-u username] [command [arg ...]]\n\ 13176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman or: strace -c [-e expr] ... [-O overhead] [-S sortby] [command [arg ...]]\n\ 13276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-c -- count time, calls, and errors for each syscall and report summary\n\ 13376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-f -- follow forks, -ff -- with output into separate files\n\ 13476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-F -- attempt to follow vforks, -h -- print help message\n\ 13576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-i -- print instruction pointer at time of syscall\n\ 13676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-q -- suppress messages about attaching, detaching, etc.\n\ 13776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-r -- print relative timestamp, -t -- absolute timestamp, -tt -- with usecs\n\ 13876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-T -- print time spent in each syscall, -V -- print version\n\ 13976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-v -- verbose mode: print unabbreviated argv, stat, termio[s], etc. args\n\ 14076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-x -- print non-ascii strings in hex, -xx -- print all strings in hex\n\ 14176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-a column -- alignment COLUMN for printing syscall results (default %d)\n\ 14276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-e expr -- a qualifying expression: option=[!]all or option=[!]val1[,val2]...\n\ 14376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman options: trace, abbrev, verbose, raw, signal, read, or write\n\ 14476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-o file -- send trace output to FILE instead of stderr\n\ 14576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-O overhead -- set overhead for tracing syscalls to OVERHEAD usecs\n\ 14676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-p pid -- trace process with process id PID, may be repeated\n\ 14776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-s strsize -- limit length of print strings to STRSIZE chars (default %d)\n\ 14876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-S sortby -- sort syscall counts by: time, calls, name, nothing (default %s)\n\ 14976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-u username -- run command as username handling setuid and/or setgid\n\ 15076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman", DEFAULT_ACOLUMN, DEFAULT_STRLEN, DEFAULT_SORTBY); 15176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(exitval); 15276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 15376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 15476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 15576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef MIPS 15676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 15776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanfoobar() 15876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 15976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 16076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* MIPS */ 16176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SVR4 */ 16276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 16376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint 16476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanmain(argc, argv) 16576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint argc; 16676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchar *argv[]; 16776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 16876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman extern int optind; 16976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman extern char *optarg; 17076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 17176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int c, pid = 0; 17276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct sigaction sa; 17376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 17476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static char buf[BUFSIZ]; 17576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 17676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname = argv[0]; 17776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman outf = stderr; 17876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman interactive = 1; 17976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify("trace=all"); 18076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify("abbrev=all"); 18176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify("verbose=all"); 18276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify("signal=all"); 18376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman set_sortby(DEFAULT_SORTBY); 18476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman set_personality(DEFAULT_PERSONALITY); 18576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman while ((c = getopt(argc, argv, 18676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "+cdfFhiqrtTvVxa:e:o:O:p:s:S:u:")) != EOF) { 18776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (c) { 18876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'c': 18976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cflag++; 19076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman dtime++; 19176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 19276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'd': 19376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman debug++; 19476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 19576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'f': 19676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman followfork++; 19776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 19876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'F': 19976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman followvfork++; 20076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 20176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'h': 20276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman usage(stdout, 0); 20376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 20476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'i': 20576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman iflag++; 20676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 20776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'q': 20876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qflag++; 20976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 21076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'r': 21176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman rflag++; 21276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tflag++; 21376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 21476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 't': 21576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tflag++; 21676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 21776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'T': 21876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman dtime++; 21976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 22076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'x': 22176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman xflag++; 22276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 22376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'v': 22476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify("abbrev=none"); 22576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 22676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'V': 22776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printf("%s\n", version); 22876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(0); 22976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 23076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'a': 23176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman acolumn = atoi(optarg); 23276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 23376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'e': 23476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify(optarg); 23576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 23676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'o': 23776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman outfname = strdup(optarg); 23876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 23976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'O': 24076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman set_overhead(atoi(optarg)); 24176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 24276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'p': 24376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((pid = atoi(optarg)) == 0) { 24476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: Invalid process id: %s\n", 24576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname, optarg); 24676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 24776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 24876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pid == getpid()) { 24954a4767f8609abfe2d7cb1802bc9e8dca97dd08fWichert Akkerman fprintf(stderr, "%s: I'm sorry, I can't let you do that, Dave.\n", progname); 25076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 25176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 25276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp = alloctcb(pid)) == NULL) { 25376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: tcb table full, please recompile strace\n", 25476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname); 25576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 25676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 25776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags |= TCB_ATTACHED; 25876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pflag_seen++; 25976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 26076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 's': 26176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman max_strlen = atoi(optarg); 26276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 26376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'S': 26476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman set_sortby(optarg); 26576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 26676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'u': 26776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman username = strdup(optarg); 26876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 26976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 27076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman usage(stderr, 1); 27176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 27276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 27376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 27476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 27576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* See if they want to run as another user. */ 27676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (username != NULL) { 27776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct passwd *pent; 27876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 27976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (getuid() != 0 || geteuid() != 0) { 28076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, 28176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "%s: you must be root to use the -u option\n", 28276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname); 28376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 28476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 28576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((pent = getpwnam(username)) == NULL) { 28676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: cannot find user `%s'\n", 28776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname, optarg); 28876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 28976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 29076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_uid = pent->pw_uid; 29176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_gid = pent->pw_gid; 29276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 29376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 29476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_uid = getuid(); 29576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_gid = getgid(); 29676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 29776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 29876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 29976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setreuid(geteuid(), getuid()); 30076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 30176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 30276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* See if they want to pipe the output. */ 30376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (outfname && (outfname[0] == '|' || outfname[0] == '!')) { 30476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((outf = popen(outfname + 1, "w")) == NULL) { 30576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: can't popen '%s': %s\n", 30676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname, outfname + 1, strerror(errno)); 30776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 30876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 30976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman free(outfname); 31076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman outfname = NULL; 31176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 31276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 31376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Check if they want to redirect the output. */ 31476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (outfname) { 31576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((outf = fopen(outfname, "w")) == NULL) { 31676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: can't fopen '%s': %s\n", 31776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname, outfname, strerror(errno)); 31876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 31976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 32076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 32176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 32276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 32376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setreuid(geteuid(), getuid()); 32476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 32576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 32676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!outfname) { 32776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qflag = 1; 32876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setvbuf(outf, buf, _IOLBF, BUFSIZ); 32976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 33076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (optind < argc) 33176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman interactive = 0; 33276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 33376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qflag = 1; 33476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 33576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (c = 0, tcp = tcbtab; c < MAX_PROCS; c++, tcp++) { 33676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Reinitialize the output since it may have changed. */ 33776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->outf = outf; 33876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!(tcp->flags & TCB_INUSE) || !(tcp->flags & TCB_ATTACHED)) 33976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 340bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 34176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_open(tcp, 1) < 0) { 34276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "trouble opening proc file\n"); 34376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 34476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 34576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 346bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* !USE_PROCFS */ 34776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_ATTACH, tcp->pid, (char *) 1, 0) < 0) { 34876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("attach: ptrace(PTRACE_ATTACH, ...)"); 34976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 35076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 35176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 352bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* !USE_PROCFS */ 35376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!qflag) 35476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, 35576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "Process %u attached - interrupt to quit\n", 35676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pid); 35776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 35876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 35976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (optind < argc) { 36076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct stat statbuf; 36176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char *filename; 36276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char pathname[MAXPATHLEN]; 36376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 36476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman filename = argv[optind]; 36576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (strchr(filename, '/')) 36676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strcpy(pathname, filename); 36776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef USE_DEBUGGING_EXEC 36876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 36976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Debuggers customarily check the current directory 37076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * first regardless of the path but doing that gives 37176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * security geeks a panic attack. 37276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 37376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (stat(filename, &statbuf) == 0) 37476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strcpy(pathname, filename); 37576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* USE_DEBUGGING_EXEC */ 37676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 37776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char *path; 37876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int m, n, len; 37976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 38076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (path = getenv("PATH"); path && *path; path += m) { 38176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (strchr(path, ':')) { 38276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman n = strchr(path, ':') - path; 38376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman m = n + 1; 38476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 38576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 38676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman m = n = strlen(path); 38776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (n == 0) { 38876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman getcwd(pathname, MAXPATHLEN); 38976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman len = strlen(pathname); 39076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 39176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 39276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strncpy(pathname, path, n); 39376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman len = n; 39476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 39576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (len && pathname[len - 1] != '/') 39676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pathname[len++] = '/'; 39776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strcpy(pathname + len, filename); 39876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (stat(pathname, &statbuf) == 0) 39976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 40076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 40176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 40276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (stat(pathname, &statbuf) < 0) { 40376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: %s: command not found\n", 40476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname, filename); 40576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 40676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 40776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (pid = fork()) { 40876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case -1: 40976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: fork"); 41076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 41176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 41276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 41376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 0: { 414bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 415bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (outf != stderr) close (fileno (outf)); 41676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef MIPS 41776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Kludge for SGI, see proc_open for details. */ 41876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = foobar; 41976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_flags = 0; 42076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&sa.sa_mask); 42176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGINT, &sa, NULL); 42276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* MIPS */ 423bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 42476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pause(); 425bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* FREEBSD */ 426bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman kill(getpid(), SIGSTOP); /* stop HERE */ 427bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* FREEBSD */ 428bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* !USE_PROCFS */ 429bd4125c6bcd20e8f014b682b31d6fc5d0fef3ed0Wichert Akkerman if (outf!=stderr) 4307987cdf192632516d6ba493b0a9943f5a3a7c362Wichert Akkerman close(fileno (outf)); 431bd4125c6bcd20e8f014b682b31d6fc5d0fef3ed0Wichert Akkerman 43276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_TRACEME, 0, (char *) 1, 0) < 0) { 43376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: ptrace(PTRACE_TRACEME, ...)"); 43476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 43576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 43676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (debug) 43776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(getpid(), SIGSTOP); 43876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 43976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (username != NULL || geteuid() == 0) { 44076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman uid_t run_euid = run_uid; 44176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman gid_t run_egid = run_gid; 44276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 44376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (statbuf.st_mode & S_ISUID) 44476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_euid = statbuf.st_uid; 44576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (statbuf.st_mode & S_ISGID) 44676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_egid = statbuf.st_gid; 44776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 44876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 44976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * It is important to set groups before we 45076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * lose privileges on setuid. 45176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 4525ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman if (username != NULL) { 4535ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman if (initgroups(username, run_gid) < 0) { 4545ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman perror("initgroups"); 4555ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman exit(1); 4565ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman } 4575ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman if (setregid(run_gid, run_egid) < 0) { 4585ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman perror("setregid"); 4595ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman exit(1); 4605ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman } 4615ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman if (setreuid(run_uid, run_euid) < 0) { 4625ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman perror("setreuid"); 4635ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman exit(1); 4645ae21ead9f83597452f9a0517e8a51fa4823f921Wichert Akkerman } 46576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 46676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 46776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 46876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setreuid(run_uid, run_uid); 469bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* !USE_PROCFS */ 47076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 47176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman execv(pathname, &argv[optind]); 47276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: exec"); 47376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman _exit(1); 47476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 47576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 47676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 47776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp = alloctcb(pid)) == NULL) { 47876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "tcb table full\n"); 47976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 48076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 48176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 482bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 48376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_open(tcp, 0) < 0) { 48476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "trouble opening proc file\n"); 48576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 48676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 48776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 488bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* USE_PROCFS */ 489bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef USE_PROCFS 49076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fake_execve(tcp, pathname, &argv[optind], environ); 491bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* !USE_PROCFS */ 49276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 49376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 49476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 49576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (pflag_seen == 0) 49676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman usage(stderr, 1); 49776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 49876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&empty_set); 49976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&blocked_set); 50076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = SIG_IGN; 50176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&sa.sa_mask); 50276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_flags = 0; 50376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGTTOU, &sa, NULL); 50476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGTTIN, &sa, NULL); 50576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interactive) { 50676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGHUP); 50776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGINT); 50876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGQUIT); 50976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGPIPE); 51076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGTERM); 51176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = interrupt; 51276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SUNOS4 51376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* POSIX signals on sunos4.1 are a little broken. */ 51476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_flags = SA_INTERRUPT; 51576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SUNOS4 */ 51676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 51776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGHUP, &sa, NULL); 51876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGINT, &sa, NULL); 51976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGQUIT, &sa, NULL); 52076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGPIPE, &sa, NULL); 52176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGTERM, &sa, NULL); 522bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 52376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = reaper; 52476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGCHLD, &sa, NULL); 525bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* USE_PROCFS */ 52676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 52776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (trace() < 0) 52876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 52976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 53076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(0); 53176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 53276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 53376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 53476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermannewoutf(tcp) 53576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 53676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 53776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char name[MAXPATHLEN]; 53876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman FILE *fp; 53976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 54076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (outfname && followfork > 1) { 54176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sprintf(name, "%s.%u", outfname, tcp->pid); 54276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 54376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setreuid(geteuid(), getuid()); 54476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 54576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fp = fopen(name, "w"); 54676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 54776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setreuid(geteuid(), getuid()); 54876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 54976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (fp == NULL) { 55076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("fopen"); 55176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return; 55276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 55376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->outf = fp; 55476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 55576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return; 55676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 55776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 55876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb * 55976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanalloctcb(pid) 56076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint pid; 56176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 56276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 56376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 56476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 56576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0, tcp = tcbtab; i < MAX_PROCS; i++, tcp++) { 56676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp->flags & TCB_INUSE) == 0) { 56776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pid = pid; 56876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->parent = NULL; 56976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->nchildren = 0; 57076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags = TCB_INUSE | TCB_STARTUP; 57176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->outf = outf; /* Initialise to current out file */ 57276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->stime.tv_sec = 0; 57376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->stime.tv_usec = 0; 57476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pfd = -1; 57576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman nprocs++; 57676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return tcp; 57776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 57876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 57976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return NULL; 58076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 58176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 582bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 58376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint 58476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanproc_open(tcp, attaching) 58576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 58676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint attaching; 58776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 58876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char proc[32]; 58976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman long arg; 590bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef SVR4 59176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sysset_t sc_enter, sc_exit; 59276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigset_t signals; 59376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fltset_t faults; 594bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif 59576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 59676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static int last_pfd; 59776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 59876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 599ea78f0f77185f7d6d0b2055805139d96e1be816cWichert Akkerman#ifdef HAVE_MP_PROCFS 6009ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman /* Open the process pseudo-files in /proc. */ 6019ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman sprintf(proc, "/proc/%d/ctl", tcp->pid); 6029ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((tcp->pfd = open(proc, O_WRONLY|O_EXCL)) < 0) { 6039ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("strace: open(\"/proc/...\", ...)"); 6049ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6059ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6069ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((arg = fcntl(tcp->pfd, F_GETFD)) < 0) { 6079ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_GETFD"); 6089ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6099ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6109ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (fcntl(tcp->pfd, F_SETFD, arg|FD_CLOEXEC) < 0) { 6119ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_SETFD"); 6129ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6139ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6149ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman sprintf(proc, "/proc/%d/status", tcp->pid); 6159ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((tcp->pfd_stat = open(proc, O_RDONLY|O_EXCL)) < 0) { 6169ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("strace: open(\"/proc/...\", ...)"); 6179ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6189ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6199ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((arg = fcntl(tcp->pfd_stat, F_GETFD)) < 0) { 6209ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_GETFD"); 6219ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6229ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6239ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (fcntl(tcp->pfd_stat, F_SETFD, arg|FD_CLOEXEC) < 0) { 6249ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_SETFD"); 6259ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6269ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6279ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman sprintf(proc, "/proc/%d/as", tcp->pid); 6289ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((tcp->pfd_as = open(proc, O_RDONLY|O_EXCL)) < 0) { 6299ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("strace: open(\"/proc/...\", ...)"); 6309ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6319ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6329ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((arg = fcntl(tcp->pfd_as, F_GETFD)) < 0) { 6339ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_GETFD"); 6349ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6359ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6369ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (fcntl(tcp->pfd_as, F_SETFD, arg|FD_CLOEXEC) < 0) { 6379ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_SETFD"); 6389ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6399ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6409ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#else 64176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Open the process pseudo-file in /proc. */ 642bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 64376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sprintf(proc, "/proc/%d", tcp->pid); 64476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp->pfd = open(proc, O_RDWR|O_EXCL)) < 0) { 645bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* FREEBSD */ 646bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman sprintf(proc, "/proc/%d/mem", tcp->pid); 647bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if ((tcp->pfd = open(proc, O_RDWR)) < 0) { 648bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* FREEBSD */ 64976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: open(\"/proc/...\", ...)"); 65076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 65176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 6529ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((arg = fcntl(tcp->pfd, F_GETFD)) < 0) { 6539ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_GETFD"); 6549ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6559ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6569ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (fcntl(tcp->pfd, F_SETFD, arg|FD_CLOEXEC) < 0) { 6579ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_SETFD"); 6589ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6599ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6609ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#endif 661bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef FREEBSD 662bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman sprintf(proc, "/proc/%d/regs", tcp->pid); 663bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if ((tcp->pfd_reg = open(proc, O_RDONLY)) < 0) { 664bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman perror("strace: open(\"/proc/.../regs\", ...)"); 665bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman return -1; 666bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } 667bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (cflag) { 668bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman sprintf(proc, "/proc/%d/status", tcp->pid); 669bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if ((tcp->pfd_status = open(proc, O_RDONLY)) < 0) { 670bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman perror("strace: open(\"/proc/.../status\", ...)"); 671bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman return -1; 672bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } 673bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } else 674bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman tcp->pfd_status = -1; 675bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* FREEBSD */ 67676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman rebuild_pollv(); 67776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!attaching) { 67876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 67976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Wait for the child to pause. Because of a race 68076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * condition we have to poll for the event. 68176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 68276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (;;) { 6839ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL_STATUS (tcp) < 0) { 68476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: PIOCSTATUS"); 68576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 68676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 687bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 6889ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (tcp->status.PR_FLAGS & PR_ASLEEP) 689bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else 690bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (tcp->status.state == 1) 691bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif 692bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman break; 69376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 69476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 695bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 69676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Stop the process so that we own the stop. */ 69716a03d2e97415afe6cf34172a0aea97a95a0b160Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSTOP, (char *)NULL) < 0) { 69876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: PIOCSTOP"); 69976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 70076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 701bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif 70276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef PIOCSET 70376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Set Run-on-Last-Close. */ 70476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman arg = PR_RLC; 7059ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSET, &arg) < 0) { 70676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCSET PR_RLC"); 70776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 70876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 70976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Set or Reset Inherit-on-Fork. */ 71076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman arg = PR_FORK; 7119ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, followfork ? PIOCSET : PIOCRESET, &arg) < 0) { 71276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOC{SET,RESET} PR_FORK"); 71376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 71476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 71576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !PIOCSET */ 716bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 71776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ioctl(tcp->pfd, PIOCSRLC) < 0) { 71876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCSRLC"); 71976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 72076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 72176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ioctl(tcp->pfd, followfork ? PIOCSFORK : PIOCRFORK) < 0) { 72276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOC{S,R}FORK"); 72376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 72476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 725bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* FREEBSD */ 726bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman /* just unset the PF_LINGER flag for the Run-on-Last-Close. */ 727bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (ioctl(tcp->pfd, PIOCGFL, &arg) < 0) { 728bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman perror("PIOCGFL"); 729bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman return -1; 730bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } 731bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman arg &= ~PF_LINGER; 732bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (ioctl(tcp->pfd, PIOCSFL, arg) < 0) { 733bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman perror("PIOCSFL"); 734bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman return -1; 735bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } 736bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* FREEBSD */ 73776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !PIOCSET */ 738bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 73976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Enable all syscall entries. */ 74076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman prfillset(&sc_enter); 7419ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSENTRY, &sc_enter) < 0) { 74276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCSENTRY"); 74376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 74476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 74576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Enable all syscall exits. */ 74676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman prfillset(&sc_exit); 7479ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSEXIT, &sc_exit) < 0) { 74876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOSEXIT"); 74976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 75076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 75176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Enable all signals. */ 75276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman prfillset(&signals); 7539ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSTRACE, &signals) < 0) { 75476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCSTRACE"); 75576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 75676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 75776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Enable all faults. */ 75876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman prfillset(&faults); 7599ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSFAULT, &faults) < 0) { 76076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCSFAULT"); 76176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 76276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 763bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* FREEBSD */ 764bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman /* set events flags. */ 765bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman arg = S_SIG | S_SCE | S_SCX ; 766bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if(ioctl(tcp->pfd, PIOCBIS, arg) < 0) { 767bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman perror("PIOCBIS"); 768bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman return -1; 769bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } 770bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* FREEBSD */ 77176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!attaching) { 77276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef MIPS 77376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 77476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * The SGI PRSABORT doesn't work for pause() so 77576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * we send it a caught signal to wake it up. 77676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 77776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(tcp->pid, SIGINT); 77876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !MIPS */ 779bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef PRSABORT 78076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* The child is in a pause(), abort it. */ 7819ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman arg = PRSABORT; 7829ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL (tcp->pfd, PIOCRUN, &arg) < 0) { 78376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCRUN"); 78476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 78576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 786bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif 787bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* !MIPS*/ 788bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef FREEBSD 789bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman /* wake up the child if it received the SIGSTOP */ 790bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman kill(tcp->pid, SIGCONT); 791bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif 79276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (;;) { 79376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Wait for the child to do something. */ 7949ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL_WSTOP (tcp) < 0) { 79576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCWSTOP"); 79676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 79776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 7989ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (tcp->status.PR_WHY == PR_SYSENTRY) { 799bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman tcp->flags &= ~TCB_INSYSCALL; 800bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman get_scno(tcp); 801bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (tcp->scno == SYS_execve) 80276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 80376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 80476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Set it running: maybe execve will be next. */ 805bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 8069ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman arg = 0; 8079ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCRUN, &arg) < 0) { 808bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* FREEBSD */ 809bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (IOCTL(tcp->pfd, PIOCRUN, 0) < 0) { 810bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* FREEBSD */ 81176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCRUN"); 81276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 81376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 814bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef FREEBSD 815bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman /* handle the case where we "opened" the child before 816bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman it did the kill -STOP */ 817bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (tcp->status.PR_WHY == PR_SIGNALLED && 818bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman tcp->status.PR_WHAT == SIGSTOP) 819bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman kill(tcp->pid, SIGCONT); 820bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif 82176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 822bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 82376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 824bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* FREEBSD */ 825bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } else { 826bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman /* little hack to show the current syscall */ 827bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman IOCTL_STATUS(tcp); 828bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman tcp->flags &= ~TCB_INSYSCALL; 829bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman tcp->status.why = PR_SYSENTRY; 830bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman trace_syscall(tcp); 831bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } 832bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* FREEBSD */ 83376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 83476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_poll_pipe[0] != -1) 83576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman proc_poller(tcp->pfd); 83676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (nprocs > 1) { 83776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman proc_poll_open(); 83876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman proc_poller(last_pfd); 83976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman proc_poller(tcp->pfd); 84076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 84176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman last_pfd = tcp->pfd; 84276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 84376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 84476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 84576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 846bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* USE_PROCFS */ 84776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 84876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic struct tcb * 84976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanpid2tcb(pid) 85076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint pid; 85176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 85276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 85376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 85476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 85576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0, tcp = tcbtab; i < MAX_PROCS; i++, tcp++) { 85676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pid && tcp->pid != pid) 85776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 85876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_INUSE) 85976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return tcp; 86076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 86176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return NULL; 86276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 86376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 864bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 86576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 86676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic struct tcb * 86776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanpfd2tcb(pfd) 86876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint pfd; 86976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 87076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 87176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 87276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 87376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0, tcp = tcbtab; i < MAX_PROCS; i++, tcp++) { 87476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->pfd != pfd) 87576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 87676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_INUSE) 87776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return tcp; 87876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 87976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return NULL; 88076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 88176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 882bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* USE_PROCFS */ 88376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 88476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 88576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermandroptcb(tcp) 88676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 88776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 88876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->pid == 0) 88976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return; 89076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman nprocs--; 89176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pid = 0; 89276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags = 0; 89376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->pfd != -1) { 89476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman close(tcp->pfd); 89576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pfd = -1; 896bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef FREEBSD 897bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (tcp->pfd_reg != -1) { 898bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman close(tcp->pfd_reg); 899bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman tcp->pfd_reg = -1; 900bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } 901bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (tcp->pfd_status != -1) { 902bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman close(tcp->pfd_status); 903bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman tcp->pfd_status = -1; 904bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } 905bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* !FREEBSD */ 906bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 90776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman rebuild_pollv(); 90876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 90976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 91076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->parent != NULL) { 91176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->parent->nchildren--; 91276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->parent = NULL; 91376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 91476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#if 0 91576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->outf != stderr) 91676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fclose(tcp->outf); 91776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 91876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->outf = 0; 91976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 92076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 921bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef USE_PROCFS 92276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 92376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 92476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanresume(tcp) 92576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 92676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 92776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp == NULL) 92876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 92976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 93076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!(tcp->flags & TCB_SUSPENDED)) { 93176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "PANIC: pid %u not suspended\n", tcp->pid); 93276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 93376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 93476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags &= ~TCB_SUSPENDED; 93576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 93676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_SYSCALL, tcp->pid, (char *) 1, 0) < 0) { 93776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("resume: ptrace(PTRACE_SYSCALL, ...)"); 93876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 93976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 94076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 94176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!qflag) 94276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "Process %u resumed\n", tcp->pid); 94376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 94476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 94576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 946bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* !USE_PROCFS */ 94776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 94876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman/* detach traced process; continue with sig */ 94976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 95076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 95176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermandetach(tcp, sig) 95276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 95376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint sig; 95476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 95576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int error = 0; 95676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef LINUX 95776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int status; 95876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 95976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 96076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_BPTSET) 96176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sig = SIGKILL; 96276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 96376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef LINUX 96476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 96576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Linux wrongly insists the child be stopped 96676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * before detaching. Arghh. We go through hoops 96776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * to make a clean break of things. 96876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 969dacfb6ebd630641d851b6df94c3b4587969a6cfbWichert Akkerman#if defined(SPARC) 970dacfb6ebd630641d851b6df94c3b4587969a6cfbWichert Akkerman#undef PTRACE_DETACH 971dacfb6ebd630641d851b6df94c3b4587969a6cfbWichert Akkerman#define PTRACE_DETACH PTRACE_SUNDETACH 972dacfb6ebd630641d851b6df94c3b4587969a6cfbWichert Akkerman#endif 97376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((error = ptrace(PTRACE_DETACH, tcp->pid, (char *) 1, sig)) == 0) { 97476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* On a clear day, you can see forever. */ 97576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 97676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (errno != ESRCH) { 97776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Shouldn't happen. */ 97876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: ptrace(PTRACE_DETACH, ...)"); 97976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 98076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (kill(tcp->pid, 0) < 0) { 98176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno != ESRCH) 98276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: checking sanity"); 98376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 98476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (kill(tcp->pid, SIGSTOP) < 0) { 98576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno != ESRCH) 98676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: stopping child"); 98776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 98876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 98976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (;;) { 99076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (waitpid(tcp->pid, &status, 0) < 0) { 99176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno != ECHILD) 99276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: waiting"); 99376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 99476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 99576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!WIFSTOPPED(status)) { 99676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Au revoir, mon ami. */ 99776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 99876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 99976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WSTOPSIG(status) == SIGSTOP) { 100076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((error = ptrace(PTRACE_DETACH, 100176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pid, (char *) 1, sig)) < 0) { 100276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno != ESRCH) 100376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: ptrace(PTRACE_DETACH, ...)"); 100476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* I died trying. */ 100576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 100676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 100776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 100876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((error = ptrace(PTRACE_CONT, tcp->pid, (char *) 1, 100976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman WSTOPSIG(status) == SIGTRAP ? 101076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 0 : WSTOPSIG(status))) < 0) { 101176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno != ESRCH) 101276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: ptrace(PTRACE_CONT, ...)"); 101376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 101476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 101576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 101676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 101776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* LINUX */ 101876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 101976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#if defined(SUNOS4) 102076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* PTRACE_DETACH won't respect `sig' argument, so we post it here. */ 102176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (sig && kill(tcp->pid, sig) < 0) 102276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: kill"); 102376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sig = 0; 102476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((error = ptrace(PTRACE_DETACH, tcp->pid, (char *) 1, sig)) < 0) 102576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: ptrace(PTRACE_DETACH, ...)"); 102676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SUNOS4 */ 102776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 1028bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef USE_PROCFS 102976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (waiting_parent(tcp)) 103076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman error = resume(tcp->parent); 1031bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* !USE_PROCFS */ 103276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 103376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!qflag) 103476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "Process %u detached\n", tcp->pid); 103576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 103676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 103776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return error; 103876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 103976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 1040bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 104176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 104276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 104376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanreaper(sig) 104476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint sig; 104576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 104676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int pid; 104776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int status; 104876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 104976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { 105076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#if 0 105176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 105276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 105376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp = pid2tcb(pid); 105476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp) 105576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 105676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 105776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 105876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 105976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 1060bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* USE_PROCFS */ 106176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 106276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 106376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermancleanup() 106476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 106576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 106676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 106776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 106876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0, tcp = tcbtab; i < MAX_PROCS; i++, tcp++) { 106976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!(tcp->flags & TCB_INUSE)) 107076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 107176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (debug) 107276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, 107376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "cleanup: looking at pid %u\n", tcp->pid); 107476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp_last && 107576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman (!outfname || followfork < 2 || tcp_last == tcp)) { 107676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf(" <unfinished ...>\n"); 107776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp_last = NULL; 107876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 107976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_ATTACHED) 108076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman detach(tcp, 0); 108176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 108276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(tcp->pid, SIGCONT); 108376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(tcp->pid, SIGTERM); 108476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 108576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 108676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (cflag) 108776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman call_summary(outf); 108876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 108976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 109076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 109176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermaninterrupt(sig) 109276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint sig; 109376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 109476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman interrupted = 1; 109576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 109676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 109776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_STRERROR 109876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 109976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SYS_ERRLIST_DECLARED 110076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanextern int sys_nerr; 110176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanextern char *sys_errlist[]; 110276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SYS_ERRLIST_DECLARED */ 110376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 110476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanconst char * 110576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstrerror(errno) 110676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint errno; 110776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 110876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static char buf[64]; 110976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 111076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno < 1 || errno >= sys_nerr) { 111176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sprintf(buf, "Unknown error %d", errno); 111276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return buf; 111376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 111476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return sys_errlist[errno]; 111576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 111676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 111776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* HAVE_STERRROR */ 111876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 111976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_STRSIGNAL 112076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 112176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SYS_SIGLIST_DECLARED 112276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef HAVE__SYS_SIGLIST 112376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman extern char *_sys_siglist[]; 112476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else 112576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman extern char *sys_siglist[]; 112676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 112776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SYS_SIGLIST_DECLARED */ 112876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 112976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanconst char * 113076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstrsignal(sig) 113176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint sig; 113276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 113376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static char buf[64]; 113476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 113576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (sig < 1 || sig >= NSIG) { 113676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sprintf(buf, "Unknown signal %d", sig); 113776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return buf; 113876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 113976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef HAVE__SYS_SIGLIST 114076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return _sys_siglist[sig]; 114176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else 114276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return sys_siglist[sig]; 114376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 114476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 114576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 114676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* HAVE_STRSIGNAL */ 114776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 1148bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef USE_PROCFS 114976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 115076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 115176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanrebuild_pollv() 115276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 115376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i, j; 115476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 115576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 115676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = j = 0, tcp = tcbtab; i < MAX_PROCS; i++, tcp++) { 115776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!(tcp->flags & TCB_INUSE)) 115876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 115976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollv[j].fd = tcp->pfd; 11609ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman pollv[j].events = POLLWANT; 116176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman j++; 116276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 116376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (j != nprocs) { 116476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "strace: proc miscount\n"); 116576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 116676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 116776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 116876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 116976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 117076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 117176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 117276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanproc_poll_open() 117376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 117476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int arg; 117576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 117676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 117776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pipe(proc_poll_pipe) < 0) { 117876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("pipe"); 117976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 118076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 118176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0; i < 2; i++) { 118276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((arg = fcntl(proc_poll_pipe[i], F_GETFD)) < 0) { 118376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("F_GETFD"); 118476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 118576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 118676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (fcntl(proc_poll_pipe[i], F_SETFD, arg|FD_CLOEXEC) < 0) { 118776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("F_SETFD"); 118876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 118976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 119076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 119176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 119276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 119376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 119476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanproc_poll(pollv, nfds, timeout) 119576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct pollfd *pollv; 119676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint nfds; 119776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint timeout; 119876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 119976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 120076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int n; 120176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct proc_pollfd pollinfo; 120276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 120376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((n = read(proc_poll_pipe[0], &pollinfo, sizeof(pollinfo))) < 0) 120476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return n; 120576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (n != sizeof(struct proc_pollfd)) { 120676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "panic: short read: %d\n", n); 120776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 120876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 120976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0; i < nprocs; i++) { 121076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pollv[i].fd == pollinfo.fd) 121176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollv[i].revents = pollinfo.revents; 121276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 121376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollv[i].revents = 0; 121476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 121576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman poller_pid = pollinfo.pid; 121676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 1; 121776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 121876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 121976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 122076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanwakeup_handler(sig) 122176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint sig; 122276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 122376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 122476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 122576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 122676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanproc_poller(pfd) 122776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint pfd; 122876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 122976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct proc_pollfd pollinfo; 123076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct sigaction sa; 123176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigset_t blocked_set, empty_set; 123276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 123376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int n; 123476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct rlimit rl; 1235bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef FREEBSD 1236bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman struct procfs_status pfs; 1237bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* FREEBSD */ 123876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 123976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (fork()) { 124076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case -1: 124176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("fork"); 124276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman _exit(0); 124376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 0: 124476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 124576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 124676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return; 124776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 124876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 124976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = interactive ? SIG_DFL : SIG_IGN; 125076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_flags = 0; 125176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&sa.sa_mask); 125276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGHUP, &sa, NULL); 125376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGINT, &sa, NULL); 125476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGQUIT, &sa, NULL); 125576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGPIPE, &sa, NULL); 125676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGTERM, &sa, NULL); 125776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = wakeup_handler; 125876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGUSR1, &sa, NULL); 125976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&blocked_set); 126076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGUSR1); 126176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigprocmask(SIG_BLOCK, &blocked_set, NULL); 126276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&empty_set); 126376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 126476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (getrlimit(RLIMIT_NOFILE, &rl) < 0) { 126576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("getrlimit(RLIMIT_NOFILE, ...)"); 126676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman _exit(0); 126776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 126876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman n = rl.rlim_cur; 126976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0; i < n; i++) { 127076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (i != pfd && i != proc_poll_pipe[1]) 127176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman close(i); 127276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 127376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 127476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollinfo.fd = pfd; 127576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollinfo.pid = getpid(); 127676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (;;) { 1277bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 1278bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (ioctl(pfd, PIOCWSTOP, NULL) < 0) 1279bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* FREEBSD */ 1280bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (ioctl(pfd, PIOCWSTOP, &pfs) < 0) 1281bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* FREEBSD */ 12829ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman { 128376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (errno) { 128476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case EINTR: 128576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 128676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case EBADF: 128776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollinfo.revents = POLLERR; 128876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 128976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case ENOENT: 129076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollinfo.revents = POLLHUP; 129176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 129276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 129376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("proc_poller: PIOCWSTOP"); 129476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 129576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman write(proc_poll_pipe[1], &pollinfo, sizeof(pollinfo)); 129676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman _exit(0); 129776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 12989ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman pollinfo.revents = POLLWANT; 129976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman write(proc_poll_pipe[1], &pollinfo, sizeof(pollinfo)); 130076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigsuspend(&empty_set); 130176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 130276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 130376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 130476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 130576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 130676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 130776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchoose_pfd() 130876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 130976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i, j; 131076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 131176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 131276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static int last; 131376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 131476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (followfork < 2 && 13159ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman last < nprocs && (pollv[last].revents & POLLWANT)) { 131676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 131776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * The previous process is ready to run again. We'll 131876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * let it do so if it is currently in a syscall. This 131976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * heuristic improves the readability of the trace. 132076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 132176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp = pfd2tcb(pollv[last].fd); 132276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp && (tcp->flags & TCB_INSYSCALL)) 132376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return pollv[last].fd; 132476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 132576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 132676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0; i < nprocs; i++) { 132776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Let competing children run round robin. */ 132876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman j = (i + last + 1) % nprocs; 132976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pollv[j].revents & (POLLHUP | POLLERR)) { 133076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp = pfd2tcb(pollv[j].fd); 133176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!tcp) { 133276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "strace: lost proc\n"); 133376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 133476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 133576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 133676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 133776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 13389ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (pollv[j].revents & POLLWANT) { 133976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman last = j; 134076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return pollv[j].fd; 134176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 134276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 134376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "strace: nothing ready\n"); 134476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 134576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 134676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 134776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 134876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermantrace() 134976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 13509dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman#ifdef POLL_HACK 13519dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman struct tcb *in_syscall; 13529dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman#endif 135376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 135476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int pfd; 135576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int what; 135676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int ioctl_result = 0, ioctl_errno = 0; 13579ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman long arg; 135876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 135976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (;;) { 136076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interactive) 136176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigprocmask(SIG_SETMASK, &empty_set, NULL); 136276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 136376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (nprocs == 0) 136476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 136576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 136676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (nprocs) { 136776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 1: 136876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 136976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_poll_pipe[0] == -1) { 137076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 137176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp = pid2tcb(0); 137276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!tcp) 137376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 137476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pfd = tcp->pfd; 137576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pfd == -1) 137676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 137776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 137876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 137976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 138076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* fall through ... */ 138176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 138276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 138376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef HAVE_POLLABLE_PROCFS 13849dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman#ifdef POLL_HACK 13859dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman /* On some systems (e.g. UnixWare) we get too much ugly 13869dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman "unfinished..." stuff when multiple proceses are in 13879dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman syscalls. Here's a nasty hack */ 13889dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman 13899dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman if (in_syscall) { 13909dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman struct pollfd pv; 13919dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman tcp = in_syscall; 13929dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman in_syscall = NULL; 13939dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman pv.fd = tcp->pfd; 13949dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman pv.events = POLLWANT; 13959dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman if ((what = poll (&pv, 1, 1)) < 0) { 13969dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman if (interrupted) 13979dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman return 0; 13989dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman continue; 13999dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman } 14009dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman else if (what == 1 && pv.revents & POLLWANT) { 14019dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman goto FOUND; 14029dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman } 14039dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman } 14049dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman#endif 14059dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman 140676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (poll(pollv, nprocs, INFTIM) < 0) { 140776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interrupted) 140876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 140976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 141076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 141176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !HAVE_POLLABLE_PROCFS */ 141276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_poll(pollv, nprocs, INFTIM) < 0) { 141376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interrupted) 141476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 141576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 141676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 141776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 141876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pfd = choose_pfd(); 141976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pfd == -1) 142076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 142176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 142276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 142376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 142476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Look up `pfd' in our table. */ 142576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp = pfd2tcb(pfd)) == NULL) { 142676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "unknown pfd: %u\n", pfd); 142776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 142876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 14299dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman FOUND: 143076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Get the status of the process. */ 143176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!interrupted) { 1432bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 14339ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman ioctl_result = IOCTL_WSTOP (tcp); 1434bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* FREEBSD */ 1435bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman /* Thanks to some scheduling mystery, the first poller 1436bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman sometimes waits for the already processed end of fork 1437bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman event. Doing a non blocking poll here solves the problem. */ 1438bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (proc_poll_pipe[0] != -1) 1439bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman ioctl_result = IOCTL_STATUS (tcp); 1440bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman else 1441bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman ioctl_result = IOCTL_WSTOP (tcp); 1442bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* FREEBSD */ 144376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman ioctl_errno = errno; 144476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 144576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_poll_pipe[0] != -1) { 144676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ioctl_result < 0) 144776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(poller_pid, SIGKILL); 144876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 144976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(poller_pid, SIGUSR1); 145076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 145176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 145276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 145376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interrupted) 145476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 145576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 145676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interactive) 145776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigprocmask(SIG_BLOCK, &blocked_set, NULL); 145876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 145976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ioctl_result < 0) { 146076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Find out what happened if it failed. */ 146176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (ioctl_errno) { 146276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case EINTR: 146376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case EBADF: 146476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 1465bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef FREEBSD 1466bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman case ENOTTY: 1467bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif 146876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case ENOENT: 146976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 147076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 147176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 147276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCWSTOP"); 147376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 147476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 147576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 147676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 147776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* clear the just started flag */ 147876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags &= ~TCB_STARTUP; 147976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 148076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* set current output file */ 148176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman outf = tcp->outf; 148276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 148376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (cflag) { 148476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct timeval stime; 1485bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef FREEBSD 1486bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman char buf[1024]; 1487bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman int len; 1488bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman 1489bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if ((len = pread(tcp->pfd_status, buf, sizeof(buf) - 1, 0)) > 0) { 1490bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman buf[len] = '\0'; 1491bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman sscanf(buf, 1492bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman "%*s %*d %*d %*d %*d %*d,%*d %*s %*d,%*d %*d,%*d %ld,%ld", 1493bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman &stime.tv_sec, &stime.tv_usec); 1494bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman } else 1495bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman stime.tv_sec = stime.tv_usec = 0; 1496bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* !FREEBSD */ 149776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman stime.tv_sec = tcp->status.pr_stime.tv_sec; 149876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman stime.tv_usec = tcp->status.pr_stime.tv_nsec/1000; 1499bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* !FREEBSD */ 150076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tv_sub(&tcp->dtime, &stime, &tcp->stime); 150176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->stime = stime; 150276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 15039ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman what = tcp->status.PR_WHAT; 15049ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman switch (tcp->status.PR_WHY) { 1505bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 150676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case PR_REQUESTED: 15079ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (tcp->status.PR_FLAGS & PR_ASLEEP) { 15089ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman tcp->status.PR_WHY = PR_SYSENTRY; 150976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (trace_syscall(tcp) < 0) { 151076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "syscall trouble\n"); 151176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 151276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 151376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 151476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 1515bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* !FREEBSD */ 151676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case PR_SYSENTRY: 15179dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman#ifdef POLL_HACK 15189dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman in_syscall = tcp; 15199dbf15466e9c178ac4090eba2c1232e2fe0706f9Wichert Akkerman#endif 152076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case PR_SYSEXIT: 152176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (trace_syscall(tcp) < 0) { 152276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "syscall trouble\n"); 152376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 152476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 152576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 152676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case PR_SIGNALLED: 152776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!cflag && (qual_flags[what] & QUAL_SIGNAL)) { 152876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printleader(tcp); 152976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("--- %s (%s) ---", 1530ce780fc9e6067b15b65ca2904c698c77503bf635Nate Sammons signame(what), strsignal(what)); 153176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printtrailer(tcp); 153276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 153376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 153476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case PR_FAULTED: 153576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!cflag && (qual_flags[what] & QUAL_FAULT)) { 153676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printleader(tcp); 153776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("=== FAULT %d ===", what); 153876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printtrailer(tcp); 153976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 154076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 1541bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifdef FREEBSD 1542bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman case 0: /* handle case we polled for nothing */ 1543bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman continue; 1544bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif 154576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 15469ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman fprintf(stderr, "odd stop %d\n", tcp->status.PR_WHY); 154776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 154876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 154976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 15509ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman arg = 0; 1551bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#ifndef FREEBSD 15529ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL (tcp->pfd, PIOCRUN, &arg) < 0) { 1553bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else 1554bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman if (IOCTL (tcp->pfd, PIOCRUN, 0) < 0) { 1555bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif 155676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCRUN"); 155776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 155876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 155976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 156076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 156176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 156276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 1563bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#else /* !USE_PROCFS */ 156476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 156576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 156676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermantrace() 156776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 156876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int pid; 156976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int wait_errno; 157076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int status; 157176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 157276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef LINUX 157376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct rusage ru; 157476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* LINUX */ 157576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 157676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman while (nprocs != 0) { 157776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interactive) 157876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigprocmask(SIG_SETMASK, &empty_set, NULL); 157976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef LINUX 158076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pid = wait4(-1, &status, 0, cflag ? &ru : NULL); 158176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* LINUX */ 158276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SUNOS4 158376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pid = wait(&status); 158476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SUNOS4 */ 158576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman wait_errno = errno; 158676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interactive) 158776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigprocmask(SIG_BLOCK, &blocked_set, NULL); 158876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 158976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interrupted) 159076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 159176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 159276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pid == -1) { 159376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (wait_errno) { 159476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case EINTR: 159576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 159676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case ECHILD: 159776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 159876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * We would like to verify this case 159976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * but sometimes a race in Solbourne's 160076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * version of SunOS sometimes reports 160176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * ECHILD before sending us SIGCHILD. 160276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 160376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#if 0 160476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (nprocs == 0) 160576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 160676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "strace: proc miscount\n"); 160776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 160876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 160976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 161076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 161176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman errno = wait_errno; 161276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: wait"); 161376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 161476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 161576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 161676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (debug) 161776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, " [wait(%#x) = %u]\n", status, pid); 161876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 161976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Look up `pid' in our table. */ 162076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp = pid2tcb(pid)) == NULL) { 1621faf722234dc8af97776f94fdda7e100fb60650a2Wichert Akkerman#if 0 /* XXX davidm */ /* WTA: disabled again */ 16228b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman struct tcb *tcpchild; 16238b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman 16248b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman if ((tcpchild = alloctcb(pid)) == NULL) { 16258b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman fprintf(stderr, " [tcb table full]\n"); 16268b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman kill(pid, SIGKILL); /* XXX */ 16278b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman return 0; 16288b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman } 16298b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman tcpchild->flags |= TCB_ATTACHED; 16308b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman newoutf(tcpchild); 16318b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman tcp->nchildren++; 16328b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman if (!qflag) 16338b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman fprintf(stderr, "Process %d attached\n", pid); 16348b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman#else 163576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "unknown pid: %u\n", pid); 163676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WIFSTOPPED(status)) 163776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman ptrace(PTRACE_CONT, pid, (char *) 1, 0); 163876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 16398b1b40cd8b49151374d0ac2a5b1a4b459f9e0ae5Wichert Akkerman#endif 164076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 164176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* set current output file */ 164276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman outf = tcp->outf; 164376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (cflag) { 164476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef LINUX 164576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tv_sub(&tcp->dtime, &ru.ru_stime, &tcp->stime); 164676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->stime = ru.ru_stime; 164776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !LINUX */ 164876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 164976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 165076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_SUSPENDED) { 165176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 165276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Apparently, doing any ptrace() call on a stopped 165376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * process, provokes the kernel to report the process 165476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * status again on a subsequent wait(), even if the 165576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * process has not been actually restarted. 165676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Since we have inspected the arguments of suspended 165776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * processes we end up here testing for this case. 165876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 165976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 166076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 166176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WIFSIGNALED(status)) { 166276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!cflag 166376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman && (qual_flags[WTERMSIG(status)] & QUAL_SIGNAL)) { 166476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printleader(tcp); 166576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("+++ killed by %s +++", 1666ce780fc9e6067b15b65ca2904c698c77503bf635Nate Sammons signame(WTERMSIG(status))); 166776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printtrailer(tcp); 166876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 166976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 167076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 167176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 167276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WIFEXITED(status)) { 167376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (debug) 167476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "pid %u exited\n", pid); 167576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_ATTACHED) 167676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, 167776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "PANIC: attached pid %u exited\n", 167876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pid); 167976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 168076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 168176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 168276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!WIFSTOPPED(status)) { 168376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "PANIC: pid %u not stopped\n", pid); 168476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 168576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 168676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 168776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (debug) 168876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "pid %u stopped, [%s]\n", 1689ce780fc9e6067b15b65ca2904c698c77503bf635Nate Sammons pid, signame(WSTOPSIG(status))); 169076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 169176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_STARTUP) { 169276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 169376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * This flag is there to keep us in sync. 169476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Next time this process stops it should 169576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * really be entering a system call. 169676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 169776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags &= ~TCB_STARTUP; 169876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_ATTACHED) { 169976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 170076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Interestingly, the process may stop 170176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * with STOPSIG equal to some other signal 170276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * than SIGSTOP if we happend to attach 170376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * just before the process takes a signal. 170476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 170576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!WIFSTOPPED(status)) { 170676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, 170776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "pid %u not stopped\n", pid); 170876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman detach(tcp, WSTOPSIG(status)); 170976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 171076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 171176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 171276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 171376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SUNOS4 171476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* A child of us stopped at exec */ 171576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WSTOPSIG(status) == SIGTRAP && followvfork) 171676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fixvfork(tcp); 171776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SUNOS4 */ 171876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 171976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_BPTSET) { 172076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (clearbpt(tcp) < 0) /* Pretty fatal */ { 172176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 172276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 172376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 172476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 172576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 172676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman goto tracing; 172776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 172876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 172976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WSTOPSIG(status) != SIGTRAP) { 173076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WSTOPSIG(status) == SIGSTOP && 173176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman (tcp->flags & TCB_SIGTRAPPED)) { 173276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 173376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Trapped attempt to block SIGTRAP 173476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Hope we are back in control now. 173576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 173676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags &= ~(TCB_INSYSCALL | TCB_SIGTRAPPED); 173776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_SYSCALL, 173876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pid, (char *) 1, 0) < 0) { 173976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("trace: ptrace(PTRACE_SYSCALL, ...)"); 174076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 174176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 174276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 174376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 174476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 174576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!cflag 174676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman && (qual_flags[WSTOPSIG(status)] & QUAL_SIGNAL)) { 174776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printleader(tcp); 174876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("--- %s (%s) ---", 1749ce780fc9e6067b15b65ca2904c698c77503bf635Nate Sammons signame(WSTOPSIG(status)), 175076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strsignal(WSTOPSIG(status))); 175176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printtrailer(tcp); 175276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 175376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp->flags & TCB_ATTACHED) && 175476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman !sigishandled(tcp, WSTOPSIG(status))) { 175576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman detach(tcp, WSTOPSIG(status)); 175676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 175776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 175876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_SYSCALL, pid, (char *) 1, 175976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman WSTOPSIG(status)) < 0) { 176076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("trace: ptrace(PTRACE_SYSCALL, ...)"); 176176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 176276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 176376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 176476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags &= ~TCB_SUSPENDED; 176576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 176676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 176776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (trace_syscall(tcp) < 0) { 176876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_ATTACHED) 176976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman detach(tcp, 0); 177076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 177176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman ptrace(PTRACE_KILL, 177276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pid, (char *) 1, SIGTERM); 177376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 177476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 177576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 177676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 177776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_EXITING) { 177876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_ATTACHED) 177976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman detach(tcp, 0); 178076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (ptrace(PTRACE_CONT, pid, (char *) 1, 0) < 0) { 178176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: ptrace(PTRACE_CONT, ...)"); 178276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 178376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 178476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 178576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 178676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 178776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_SUSPENDED) { 178876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!qflag) 178976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "Process %u suspended\n", pid); 179076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 179176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 179276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tracing: 179376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_SYSCALL, pid, (char *) 1, 0) < 0) { 179476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("trace: ptrace(PTRACE_SYSCALL, ...)"); 179576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 179676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 179776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 179876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 179976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 180076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 180176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 1802bf79f2e16b090ffe59cd1e1820935680a2da7b78Wichert Akkerman#endif /* !USE_PROCFS */ 180376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 180476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int curcol; 180576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 180676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef __STDC__ 180776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <stdarg.h> 180876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#define VA_START(a, b) va_start(a, b) 180976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else 181076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <varargs.h> 181176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#define VA_START(a, b) va_start(a) 181276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 181376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 181476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 181576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef __STDC__ 181676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermantprintf(const char *fmt, ...) 181776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else 181876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermantprintf(fmt, va_alist) 181976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchar *fmt; 182076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanva_dcl 182176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 182276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 182376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman va_list args; 182476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 182576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman VA_START(args, fmt); 182676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (outf) 182776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman curcol += vfprintf(outf, fmt, args); 182876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman va_end(args); 182976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return; 183076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 183176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 183276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 183376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanprintleader(tcp) 183476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 183576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 183676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp_last && (!outfname || followfork < 2 || tcp_last == tcp)) { 183776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp_last->flags |= TCB_REPRINT; 183876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf(" <unfinished ...>\n"); 183976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 184076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman curcol = 0; 184176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((followfork == 1 || pflag_seen > 1) && outfname) 184276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%-5d ", tcp->pid); 184376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (nprocs > 1 && !outfname) 184476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("[pid %5u] ", tcp->pid); 184576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tflag) { 184676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char str[sizeof("HH:MM:SS")]; 184776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct timeval tv, dtv; 184876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static struct timeval otv; 184976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 185076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman gettimeofday(&tv, NULL); 185176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (rflag) { 185276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (otv.tv_sec == 0) 185376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman otv = tv; 185476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tv_sub(&dtv, &tv, &otv); 185576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%6ld.%06ld ", 185676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman (long) dtv.tv_sec, (long) dtv.tv_usec); 185776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman otv = tv; 185876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 185976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (tflag > 2) { 186076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%ld.%06ld ", 186176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman (long) tv.tv_sec, (long) tv.tv_usec); 186276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 186376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 186476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman time_t local = tv.tv_sec; 186576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strftime(str, sizeof(str), "%T", localtime(&local)); 186676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tflag > 1) 186776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%s.%06ld ", str, (long) tv.tv_usec); 186876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 186976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%s ", str); 187076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 187176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 187276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (iflag) 187376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printcall(tcp); 187476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 187576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 187676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 187776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermantabto(col) 187876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint col; 187976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 188076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (curcol < col) 188176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%*s", col - curcol, ""); 188276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 188376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 188476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 188576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanprinttrailer(tcp) 188676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 188776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 188876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("\n"); 188976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp_last = NULL; 189076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 18919ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 1892ea78f0f77185f7d6d0b2055805139d96e1be816cWichert Akkerman#ifdef HAVE_MP_PROCFS 18939ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 18949ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkermanint mp_ioctl (int fd, int cmd, void *arg, int size) { 18959ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 18969ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman struct iovec iov[2]; 18979ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman int n = 1; 18989ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 18999ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman iov[0].iov_base = &cmd; 19009ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman iov[0].iov_len = sizeof cmd; 19019ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (arg) { 19029ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman ++n; 19039ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman iov[1].iov_base = arg; 19049ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman iov[1].iov_len = size; 19059ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 19069ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 19079ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return writev (fd, iov, n); 19089ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman} 19099ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 19109ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#endif 1911