strace.c revision 54a4767f8609abfe2d7cb1802bc9e8dca97dd08f
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> 576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * All rights reserved. 676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Redistribution and use in source and binary forms, with or without 876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * modification, are permitted provided that the following conditions 976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * are met: 1076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 1. Redistributions of source code must retain the above copyright 1176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * notice, this list of conditions and the following disclaimer. 1276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 2. Redistributions in binary form must reproduce the above copyright 1376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * notice, this list of conditions and the following disclaimer in the 1476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * documentation and/or other materials provided with the distribution. 1576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 3. The name of the author may not be used to endorse or promote products 1676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * derived from this software without specific prior written permission. 1776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 1876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 2076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * 2976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * $Id$ 3076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 3176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 3276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include "defs.h" 3376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 3476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <signal.h> 3576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <errno.h> 3676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <sys/param.h> 3776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <fcntl.h> 3876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <sys/resource.h> 3976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <sys/wait.h> 4076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <sys/stat.h> 4176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <pwd.h> 4276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <grp.h> 4376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <string.h> 4476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 4576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 4676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <sys/stropts.h> 4776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <poll.h> 489ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#ifdef SVR4_MP 499ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#include <sys/uio.h> 509ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#endif 5176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 5276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 5376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint debug = 0, followfork = 0, followvfork = 0, interactive = 0; 5476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint rflag = 0, tflag = 0, dtime = 0, cflag = 0; 5576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint iflag = 0, xflag = 0, qflag = 0; 5676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint pflag_seen = 0; 5776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 5876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchar *username = NULL; 5976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanuid_t run_uid; 6076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermangid_t run_gid; 6176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 6276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint acolumn = DEFAULT_ACOLUMN; 6376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint max_strlen = DEFAULT_STRLEN; 6476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchar *outfname = NULL; 6576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert AkkermanFILE *outf; 6676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb tcbtab[MAX_PROCS]; 6776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint nprocs; 6876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchar *progname; 6976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanextern char version[]; 7076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanextern char **environ; 7176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 7276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic struct tcb *pid2tcb P((int pid)); 7376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int trace P((void)); 7476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void cleanup P((void)); 7576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void interrupt P((int sig)); 7676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic sigset_t empty_set, blocked_set; 7776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 7876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef HAVE_SIG_ATOMIC_T 7976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic volatile sig_atomic_t interrupted; 8076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !HAVE_SIG_ATOMIC_T */ 8176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef __STDC__ 8276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic volatile int interrupted; 8376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !__STDC__ */ 8476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int interrupted; 8576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !__STDC__ */ 8676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_SIG_ATOMIC_T */ 8776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 8876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 8976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 9076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic struct tcb *pfd2tcb P((int pfd)); 9176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void reaper P((int sig)); 9276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void rebuild_pollv P((void)); 93e68d61c7d6dcf986d32c462e533ea46f85183db8Wichert Akkermanstruct pollfd pollv[MAX_PROCS]; 9476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 9576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 9676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 9776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void proc_poll_open P((void)); 9876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void proc_poller P((int pfd)); 9976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 10076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct proc_pollfd { 10176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int fd; 10276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int revents; 10376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int pid; 10476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman}; 10576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 10676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int poller_pid; 10776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int proc_poll_pipe[2] = { -1, -1 }; 10876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 10976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 11076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 1119ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#ifdef SVR4_MP 1129ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#define POLLWANT POLLWRNORM 1139ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#else 1149ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#define POLLWANT POLLPRI 1159ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#endif 11676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SVR4 */ 11776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 11876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 11976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanusage(ofp, exitval) 12076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert AkkermanFILE *ofp; 12176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint exitval; 12276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 12376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(ofp, "\ 12476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanusage: strace [-dffhiqrtttTvVxx] [-a column] [-e expr] ... [-o file]\n\ 12576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman [-p pid] ... [-s strsize] [-u username] [command [arg ...]]\n\ 12676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman or: strace -c [-e expr] ... [-O overhead] [-S sortby] [command [arg ...]]\n\ 12776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-c -- count time, calls, and errors for each syscall and report summary\n\ 12876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-f -- follow forks, -ff -- with output into separate files\n\ 12976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-F -- attempt to follow vforks, -h -- print help message\n\ 13076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-i -- print instruction pointer at time of syscall\n\ 13176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-q -- suppress messages about attaching, detaching, etc.\n\ 13276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-r -- print relative timestamp, -t -- absolute timestamp, -tt -- with usecs\n\ 13376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-T -- print time spent in each syscall, -V -- print version\n\ 13476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-v -- verbose mode: print unabbreviated argv, stat, termio[s], etc. args\n\ 13576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-x -- print non-ascii strings in hex, -xx -- print all strings in hex\n\ 13676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-a column -- alignment COLUMN for printing syscall results (default %d)\n\ 13776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-e expr -- a qualifying expression: option=[!]all or option=[!]val1[,val2]...\n\ 13876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman options: trace, abbrev, verbose, raw, signal, read, or write\n\ 13976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-o file -- send trace output to FILE instead of stderr\n\ 14076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-O overhead -- set overhead for tracing syscalls to OVERHEAD usecs\n\ 14176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-p pid -- trace process with process id PID, may be repeated\n\ 14276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-s strsize -- limit length of print strings to STRSIZE chars (default %d)\n\ 14376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-S sortby -- sort syscall counts by: time, calls, name, nothing (default %s)\n\ 14476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman-u username -- run command as username handling setuid and/or setgid\n\ 14576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman", DEFAULT_ACOLUMN, DEFAULT_STRLEN, DEFAULT_SORTBY); 14676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(exitval); 14776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 14876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 14976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 15076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef MIPS 15176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 15276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanfoobar() 15376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 15476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 15576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* MIPS */ 15676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SVR4 */ 15776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 15876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint 15976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanmain(argc, argv) 16076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint argc; 16176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchar *argv[]; 16276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 16376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman extern int optind; 16476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman extern char *optarg; 16576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 16676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int c, pid = 0; 16776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct sigaction sa; 16876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 16976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static char buf[BUFSIZ]; 17076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 17176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname = argv[0]; 17276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman outf = stderr; 17376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman interactive = 1; 17476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify("trace=all"); 17576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify("abbrev=all"); 17676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify("verbose=all"); 17776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify("signal=all"); 17876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman set_sortby(DEFAULT_SORTBY); 17976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman set_personality(DEFAULT_PERSONALITY); 18076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman while ((c = getopt(argc, argv, 18176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "+cdfFhiqrtTvVxa:e:o:O:p:s:S:u:")) != EOF) { 18276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (c) { 18376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'c': 18476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cflag++; 18576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman dtime++; 18676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 18776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'd': 18876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman debug++; 18976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 19076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'f': 19176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman followfork++; 19276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 19376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'F': 19476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman followvfork++; 19576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 19676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'h': 19776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman usage(stdout, 0); 19876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 19976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'i': 20076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman iflag++; 20176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 20276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'q': 20376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qflag++; 20476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 20576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'r': 20676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman rflag++; 20776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tflag++; 20876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 20976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 't': 21076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tflag++; 21176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 21276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'T': 21376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman dtime++; 21476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 21576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'x': 21676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman xflag++; 21776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 21876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'v': 21976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify("abbrev=none"); 22076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 22176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'V': 22276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printf("%s\n", version); 22376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(0); 22476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 22576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'a': 22676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman acolumn = atoi(optarg); 22776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 22876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'e': 22976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qualify(optarg); 23076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 23176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'o': 23276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman outfname = strdup(optarg); 23376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 23476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'O': 23576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman set_overhead(atoi(optarg)); 23676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 23776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'p': 23876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((pid = atoi(optarg)) == 0) { 23976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: Invalid process id: %s\n", 24076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname, optarg); 24176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 24276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 24376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pid == getpid()) { 24454a4767f8609abfe2d7cb1802bc9e8dca97dd08fWichert Akkerman fprintf(stderr, "%s: I'm sorry, I can't let you do that, Dave.\n", progname); 24576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 24676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 24776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp = alloctcb(pid)) == NULL) { 24876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: tcb table full, please recompile strace\n", 24976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname); 25076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 25176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 25276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags |= TCB_ATTACHED; 25376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pflag_seen++; 25476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 25576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 's': 25676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman max_strlen = atoi(optarg); 25776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 25876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'S': 25976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman set_sortby(optarg); 26076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 26176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 'u': 26276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman username = strdup(optarg); 26376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 26476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 26576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman usage(stderr, 1); 26676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 26776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 26876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 26976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 27076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* See if they want to run as another user. */ 27176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (username != NULL) { 27276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct passwd *pent; 27376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 27476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (getuid() != 0 || geteuid() != 0) { 27576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, 27676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "%s: you must be root to use the -u option\n", 27776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname); 27876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 27976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 28076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((pent = getpwnam(username)) == NULL) { 28176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: cannot find user `%s'\n", 28276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname, optarg); 28376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 28476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 28576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_uid = pent->pw_uid; 28676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_gid = pent->pw_gid; 28776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 28876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 28976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_uid = getuid(); 29076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_gid = getgid(); 29176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 29276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 29376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 29476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setreuid(geteuid(), getuid()); 29576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 29676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 29776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* See if they want to pipe the output. */ 29876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (outfname && (outfname[0] == '|' || outfname[0] == '!')) { 29976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((outf = popen(outfname + 1, "w")) == NULL) { 30076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: can't popen '%s': %s\n", 30176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname, outfname + 1, strerror(errno)); 30276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 30376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 30476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman free(outfname); 30576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman outfname = NULL; 30676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 30776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 30876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Check if they want to redirect the output. */ 30976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (outfname) { 31076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((outf = fopen(outfname, "w")) == NULL) { 31176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: can't fopen '%s': %s\n", 31276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname, outfname, strerror(errno)); 31376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 31476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 31576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 31676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 31776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 31876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setreuid(geteuid(), getuid()); 31976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 32076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 32176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!outfname) { 32276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qflag = 1; 32376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setvbuf(outf, buf, _IOLBF, BUFSIZ); 32476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 32576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (optind < argc) 32676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman interactive = 0; 32776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 32876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman qflag = 1; 32976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 33076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (c = 0, tcp = tcbtab; c < MAX_PROCS; c++, tcp++) { 33176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Reinitialize the output since it may have changed. */ 33276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->outf = outf; 33376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!(tcp->flags & TCB_INUSE) || !(tcp->flags & TCB_ATTACHED)) 33476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 33576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 33676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_open(tcp, 1) < 0) { 33776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "trouble opening proc file\n"); 33876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 33976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 34076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 34176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !SVR4 */ 34276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_ATTACH, tcp->pid, (char *) 1, 0) < 0) { 34376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("attach: ptrace(PTRACE_ATTACH, ...)"); 34476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 34576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 34676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 34776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !SVR4 */ 34876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!qflag) 34976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, 35076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "Process %u attached - interrupt to quit\n", 35176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pid); 35276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 35376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 35476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (optind < argc) { 35576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct stat statbuf; 35676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char *filename; 35776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char pathname[MAXPATHLEN]; 35876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 35976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman filename = argv[optind]; 36076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (strchr(filename, '/')) 36176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strcpy(pathname, filename); 36276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef USE_DEBUGGING_EXEC 36376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 36476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Debuggers customarily check the current directory 36576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * first regardless of the path but doing that gives 36676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * security geeks a panic attack. 36776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 36876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (stat(filename, &statbuf) == 0) 36976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strcpy(pathname, filename); 37076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* USE_DEBUGGING_EXEC */ 37176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 37276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char *path; 37376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int m, n, len; 37476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 37576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (path = getenv("PATH"); path && *path; path += m) { 37676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (strchr(path, ':')) { 37776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman n = strchr(path, ':') - path; 37876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman m = n + 1; 37976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 38076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 38176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman m = n = strlen(path); 38276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (n == 0) { 38376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman getcwd(pathname, MAXPATHLEN); 38476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman len = strlen(pathname); 38576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 38676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 38776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strncpy(pathname, path, n); 38876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman len = n; 38976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 39076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (len && pathname[len - 1] != '/') 39176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pathname[len++] = '/'; 39276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strcpy(pathname + len, filename); 39376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (stat(pathname, &statbuf) == 0) 39476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 39576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 39676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 39776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (stat(pathname, &statbuf) < 0) { 39876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "%s: %s: command not found\n", 39976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman progname, filename); 40076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 40176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 40276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (pid = fork()) { 40376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case -1: 40476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: fork"); 40576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 40676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 40776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 40876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 0: { 40976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 410789ed35db520a552ba5ea0a5cbe5b31efa7adde5Wichert Akkerman if (outf != stderr) close (fileno (outf)); 41176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef MIPS 41276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Kludge for SGI, see proc_open for details. */ 41376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = foobar; 41476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_flags = 0; 41576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&sa.sa_mask); 41676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGINT, &sa, NULL); 41776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* MIPS */ 41876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pause(); 41976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !SVR4 */ 42076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_TRACEME, 0, (char *) 1, 0) < 0) { 42176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: ptrace(PTRACE_TRACEME, ...)"); 42276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 42376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 42476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (debug) 42576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(getpid(), SIGSTOP); 42676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 42776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (username != NULL || geteuid() == 0) { 42876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman uid_t run_euid = run_uid; 42976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman gid_t run_egid = run_gid; 43076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 43176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (statbuf.st_mode & S_ISUID) 43276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_euid = statbuf.st_uid; 43376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (statbuf.st_mode & S_ISGID) 43476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman run_egid = statbuf.st_gid; 43576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 43676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 43776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * It is important to set groups before we 43876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * lose privileges on setuid. 43976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 44076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (username != NULL 44176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman && initgroups(username, run_gid) < 0) { 44276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("initgroups"); 44376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 44476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 44576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (setregid(run_gid, run_egid) < 0) { 44676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("setregid"); 44776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 44876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 44976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (setreuid(run_uid, run_euid) < 0) { 45076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("setreuid"); 45176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 45276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 45376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 45476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 45576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setreuid(run_uid, run_uid); 45676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !SVR4 */ 45776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 45876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman execv(pathname, &argv[optind]); 45976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: exec"); 46076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman _exit(1); 46176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 46276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 46376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 46476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp = alloctcb(pid)) == NULL) { 46576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "tcb table full\n"); 46676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 46776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 46876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 46976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 47076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_open(tcp, 0) < 0) { 47176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "trouble opening proc file\n"); 47276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 47376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 47476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 47576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SVR4 */ 47676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 47776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fake_execve(tcp, pathname, &argv[optind], environ); 47876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 47976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 48076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 48176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 48276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (pflag_seen == 0) 48376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman usage(stderr, 1); 48476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 48576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&empty_set); 48676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&blocked_set); 48776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = SIG_IGN; 48876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&sa.sa_mask); 48976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_flags = 0; 49076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGTTOU, &sa, NULL); 49176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGTTIN, &sa, NULL); 49276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interactive) { 49376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGHUP); 49476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGINT); 49576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGQUIT); 49676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGPIPE); 49776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGTERM); 49876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = interrupt; 49976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SUNOS4 50076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* POSIX signals on sunos4.1 are a little broken. */ 50176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_flags = SA_INTERRUPT; 50276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SUNOS4 */ 50376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 50476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGHUP, &sa, NULL); 50576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGINT, &sa, NULL); 50676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGQUIT, &sa, NULL); 50776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGPIPE, &sa, NULL); 50876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGTERM, &sa, NULL); 50976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 51076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = reaper; 51176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGCHLD, &sa, NULL); 51276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SVR4 */ 51376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 51476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (trace() < 0) 51576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 51676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 51776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(0); 51876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 51976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 52076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 52176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermannewoutf(tcp) 52276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 52376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 52476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char name[MAXPATHLEN]; 52576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman FILE *fp; 52676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 52776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (outfname && followfork > 1) { 52876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sprintf(name, "%s.%u", outfname, tcp->pid); 52976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 53076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setreuid(geteuid(), getuid()); 53176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 53276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fp = fopen(name, "w"); 53376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 53476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman setreuid(geteuid(), getuid()); 53576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 53676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (fp == NULL) { 53776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("fopen"); 53876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return; 53976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 54076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->outf = fp; 54176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 54276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return; 54376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 54476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 54576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb * 54676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanalloctcb(pid) 54776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint pid; 54876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 54976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 55076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 55176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 55276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0, tcp = tcbtab; i < MAX_PROCS; i++, tcp++) { 55376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp->flags & TCB_INUSE) == 0) { 55476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pid = pid; 55576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->parent = NULL; 55676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->nchildren = 0; 55776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags = TCB_INUSE | TCB_STARTUP; 55876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->outf = outf; /* Initialise to current out file */ 55976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->stime.tv_sec = 0; 56076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->stime.tv_usec = 0; 56176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pfd = -1; 56276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman nprocs++; 56376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return tcp; 56476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 56576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 56676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return NULL; 56776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 56876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 56976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 57076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint 57176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanproc_open(tcp, attaching) 57276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 57376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint attaching; 57476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 57576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char proc[32]; 57676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman long arg; 57776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sysset_t sc_enter, sc_exit; 57876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigset_t signals; 57976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fltset_t faults; 58076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 58176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static int last_pfd; 58276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 58376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 5849ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#ifdef SVR4_MP 5859ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman /* Open the process pseudo-files in /proc. */ 5869ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman sprintf(proc, "/proc/%d/ctl", tcp->pid); 5879ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((tcp->pfd = open(proc, O_WRONLY|O_EXCL)) < 0) { 5889ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("strace: open(\"/proc/...\", ...)"); 5899ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 5909ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 5919ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((arg = fcntl(tcp->pfd, F_GETFD)) < 0) { 5929ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_GETFD"); 5939ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 5949ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 5959ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (fcntl(tcp->pfd, F_SETFD, arg|FD_CLOEXEC) < 0) { 5969ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_SETFD"); 5979ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 5989ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 5999ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman sprintf(proc, "/proc/%d/status", tcp->pid); 6009ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((tcp->pfd_stat = open(proc, O_RDONLY|O_EXCL)) < 0) { 6019ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("strace: open(\"/proc/...\", ...)"); 6029ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6039ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6049ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((arg = fcntl(tcp->pfd_stat, F_GETFD)) < 0) { 6059ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_GETFD"); 6069ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6079ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6089ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (fcntl(tcp->pfd_stat, F_SETFD, arg|FD_CLOEXEC) < 0) { 6099ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_SETFD"); 6109ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6119ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6129ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman sprintf(proc, "/proc/%d/as", tcp->pid); 6139ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((tcp->pfd_as = open(proc, O_RDONLY|O_EXCL)) < 0) { 6149ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("strace: open(\"/proc/...\", ...)"); 6159ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6169ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6179ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((arg = fcntl(tcp->pfd_as, F_GETFD)) < 0) { 6189ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_GETFD"); 6199ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6209ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6219ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (fcntl(tcp->pfd_as, F_SETFD, arg|FD_CLOEXEC) < 0) { 6229ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_SETFD"); 6239ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6249ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6259ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#else 62676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Open the process pseudo-file in /proc. */ 62776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sprintf(proc, "/proc/%d", tcp->pid); 62876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp->pfd = open(proc, O_RDWR|O_EXCL)) < 0) { 62976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: open(\"/proc/...\", ...)"); 63076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 63176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 6329ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if ((arg = fcntl(tcp->pfd, F_GETFD)) < 0) { 6339ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_GETFD"); 6349ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6359ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6369ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (fcntl(tcp->pfd, F_SETFD, arg|FD_CLOEXEC) < 0) { 6379ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman perror("F_SETFD"); 6389ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return -1; 6399ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 6409ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#endif 64176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman rebuild_pollv(); 64276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!attaching) { 64376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 64476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Wait for the child to pause. Because of a race 64576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * condition we have to poll for the event. 64676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 64776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (;;) { 6489ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL_STATUS (tcp) < 0) { 64976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: PIOCSTATUS"); 65076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 65176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 6529ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (tcp->status.PR_FLAGS & PR_ASLEEP) 65376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 65476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 65576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 65676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Stop the process so that we own the stop. */ 6579ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSTOP, NULL) < 0) { 65876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: PIOCSTOP"); 65976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 66076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 66176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef PIOCSET 66276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Set Run-on-Last-Close. */ 66376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman arg = PR_RLC; 6649ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSET, &arg) < 0) { 66576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCSET PR_RLC"); 66676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 66776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 66876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Set or Reset Inherit-on-Fork. */ 66976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman arg = PR_FORK; 6709ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, followfork ? PIOCSET : PIOCRESET, &arg) < 0) { 67176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOC{SET,RESET} PR_FORK"); 67276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 67376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 67476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !PIOCSET */ 67576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ioctl(tcp->pfd, PIOCSRLC) < 0) { 67676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCSRLC"); 67776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 67876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 67976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ioctl(tcp->pfd, followfork ? PIOCSFORK : PIOCRFORK) < 0) { 68076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOC{S,R}FORK"); 68176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 68276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 68376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !PIOCSET */ 68476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Enable all syscall entries. */ 68576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman prfillset(&sc_enter); 6869ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSENTRY, &sc_enter) < 0) { 68776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCSENTRY"); 68876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 68976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 69076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Enable all syscall exits. */ 69176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman prfillset(&sc_exit); 6929ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSEXIT, &sc_exit) < 0) { 69376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOSEXIT"); 69476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 69576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 69676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Enable all signals. */ 69776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman prfillset(&signals); 6989ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSTRACE, &signals) < 0) { 69976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCSTRACE"); 70076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 70176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 70276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Enable all faults. */ 70376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman prfillset(&faults); 7049ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCSFAULT, &faults) < 0) { 70576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCSFAULT"); 70676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 70776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 70876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!attaching) { 70976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef MIPS 71076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 71176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * The SGI PRSABORT doesn't work for pause() so 71276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * we send it a caught signal to wake it up. 71376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 71476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(tcp->pid, SIGINT); 71576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !MIPS */ 71676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* The child is in a pause(), abort it. */ 7179ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman arg = PRSABORT; 7189ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL (tcp->pfd, PIOCRUN, &arg) < 0) { 71976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCRUN"); 72076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 72176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 72276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !MIPS */ 72376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (;;) { 72476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Wait for the child to do something. */ 7259ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL_WSTOP (tcp) < 0) { 72676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCWSTOP"); 72776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 72876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 7299ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (tcp->status.PR_WHY == PR_SYSENTRY) { 73076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef HAVE_PR_SYSCALL 73176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int scno = tcp->status.pr_syscall; 73276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !HAVE_PR_SYSCALL */ 7339ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman int scno = tcp->status.PR_WHAT; 73476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_PR_SYSCALL */ 73576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (scno == SYS_execve) 73676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 73776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 73876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Set it running: maybe execve will be next. */ 7399ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman arg = 0; 7409ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL(tcp->pfd, PIOCRUN, &arg) < 0) { 74176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCRUN"); 74276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 74376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 74476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 74576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 74676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 74776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_poll_pipe[0] != -1) 74876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman proc_poller(tcp->pfd); 74976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (nprocs > 1) { 75076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman proc_poll_open(); 75176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman proc_poller(last_pfd); 75276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman proc_poller(tcp->pfd); 75376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 75476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman last_pfd = tcp->pfd; 75576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 75676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 75776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 75876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 75976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SVR4 */ 76076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 76176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic struct tcb * 76276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanpid2tcb(pid) 76376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint pid; 76476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 76576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 76676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 76776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 76876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0, tcp = tcbtab; i < MAX_PROCS; i++, tcp++) { 76976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pid && tcp->pid != pid) 77076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 77176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_INUSE) 77276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return tcp; 77376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 77476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return NULL; 77576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 77676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 77776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 77876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 77976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic struct tcb * 78076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanpfd2tcb(pfd) 78176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint pfd; 78276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 78376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 78476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 78576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 78676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0, tcp = tcbtab; i < MAX_PROCS; i++, tcp++) { 78776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->pfd != pfd) 78876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 78976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_INUSE) 79076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return tcp; 79176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 79276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return NULL; 79376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 79476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 79576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SVR4 */ 79676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 79776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 79876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermandroptcb(tcp) 79976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 80076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 80176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->pid == 0) 80276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return; 80376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman nprocs--; 80476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pid = 0; 80576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags = 0; 80676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->pfd != -1) { 80776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman close(tcp->pfd); 80876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pfd = -1; 80976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 81076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman rebuild_pollv(); 81176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 81276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 81376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->parent != NULL) { 81476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->parent->nchildren--; 81576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->parent = NULL; 81676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 81776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#if 0 81876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->outf != stderr) 81976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fclose(tcp->outf); 82076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 82176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->outf = 0; 82276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 82376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 82476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 82576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 82676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 82776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanresume(tcp) 82876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 82976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 83076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp == NULL) 83176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 83276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 83376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!(tcp->flags & TCB_SUSPENDED)) { 83476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "PANIC: pid %u not suspended\n", tcp->pid); 83576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 83676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 83776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags &= ~TCB_SUSPENDED; 83876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 83976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_SYSCALL, tcp->pid, (char *) 1, 0) < 0) { 84076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("resume: ptrace(PTRACE_SYSCALL, ...)"); 84176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 84276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 84376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 84476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!qflag) 84576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "Process %u resumed\n", tcp->pid); 84676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 84776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 84876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 84976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !SVR4 */ 85076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 85176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman/* detach traced process; continue with sig */ 85276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 85376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 85476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermandetach(tcp, sig) 85576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 85676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint sig; 85776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 85876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int error = 0; 85976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef LINUX 86076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int status; 86176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 86276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 86376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_BPTSET) 86476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sig = SIGKILL; 86576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 86676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef LINUX 86776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 86876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Linux wrongly insists the child be stopped 86976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * before detaching. Arghh. We go through hoops 87076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * to make a clean break of things. 87176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 872dacfb6ebd630641d851b6df94c3b4587969a6cfbWichert Akkerman#if defined(SPARC) 873dacfb6ebd630641d851b6df94c3b4587969a6cfbWichert Akkerman#undef PTRACE_DETACH 874dacfb6ebd630641d851b6df94c3b4587969a6cfbWichert Akkerman#define PTRACE_DETACH PTRACE_SUNDETACH 875dacfb6ebd630641d851b6df94c3b4587969a6cfbWichert Akkerman#endif 87676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((error = ptrace(PTRACE_DETACH, tcp->pid, (char *) 1, sig)) == 0) { 87776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* On a clear day, you can see forever. */ 87876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 87976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (errno != ESRCH) { 88076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Shouldn't happen. */ 88176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: ptrace(PTRACE_DETACH, ...)"); 88276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 88376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (kill(tcp->pid, 0) < 0) { 88476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno != ESRCH) 88576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: checking sanity"); 88676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 88776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (kill(tcp->pid, SIGSTOP) < 0) { 88876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno != ESRCH) 88976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: stopping child"); 89076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 89176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 89276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (;;) { 89376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (waitpid(tcp->pid, &status, 0) < 0) { 89476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno != ECHILD) 89576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: waiting"); 89676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 89776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 89876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!WIFSTOPPED(status)) { 89976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Au revoir, mon ami. */ 90076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 90176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 90276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WSTOPSIG(status) == SIGSTOP) { 90376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((error = ptrace(PTRACE_DETACH, 90476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pid, (char *) 1, sig)) < 0) { 90576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno != ESRCH) 90676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: ptrace(PTRACE_DETACH, ...)"); 90776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* I died trying. */ 90876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 90976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 91076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 91176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((error = ptrace(PTRACE_CONT, tcp->pid, (char *) 1, 91276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman WSTOPSIG(status) == SIGTRAP ? 91376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 0 : WSTOPSIG(status))) < 0) { 91476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno != ESRCH) 91576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: ptrace(PTRACE_CONT, ...)"); 91676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 91776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 91876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 91976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 92076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* LINUX */ 92176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 92276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#if defined(SUNOS4) 92376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* PTRACE_DETACH won't respect `sig' argument, so we post it here. */ 92476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (sig && kill(tcp->pid, sig) < 0) 92576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: kill"); 92676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sig = 0; 92776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((error = ptrace(PTRACE_DETACH, tcp->pid, (char *) 1, sig)) < 0) 92876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("detach: ptrace(PTRACE_DETACH, ...)"); 92976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SUNOS4 */ 93076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 93176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SVR4 93276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (waiting_parent(tcp)) 93376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman error = resume(tcp->parent); 93476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !SVR4 */ 93576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 93676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!qflag) 93776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "Process %u detached\n", tcp->pid); 93876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 93976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 94076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return error; 94176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 94276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 94376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 94476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 94576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 94676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanreaper(sig) 94776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint sig; 94876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 94976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int pid; 95076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int status; 95176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 95276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { 95376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#if 0 95476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 95576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 95676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp = pid2tcb(pid); 95776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp) 95876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 95976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 96076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 96176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 96276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 96376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SVR4 */ 96476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 96576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 96676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermancleanup() 96776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 96876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 96976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 97076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 97176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0, tcp = tcbtab; i < MAX_PROCS; i++, tcp++) { 97276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!(tcp->flags & TCB_INUSE)) 97376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 97476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (debug) 97576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, 97676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "cleanup: looking at pid %u\n", tcp->pid); 97776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp_last && 97876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman (!outfname || followfork < 2 || tcp_last == tcp)) { 97976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf(" <unfinished ...>\n"); 98076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp_last = NULL; 98176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 98276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_ATTACHED) 98376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman detach(tcp, 0); 98476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 98576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(tcp->pid, SIGCONT); 98676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(tcp->pid, SIGTERM); 98776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 98876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 98976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (cflag) 99076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman call_summary(outf); 99176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 99276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 99376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 99476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermaninterrupt(sig) 99576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint sig; 99676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 99776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman interrupted = 1; 99876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 99976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 100076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_STRERROR 100176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 100276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SYS_ERRLIST_DECLARED 100376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanextern int sys_nerr; 100476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanextern char *sys_errlist[]; 100576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SYS_ERRLIST_DECLARED */ 100676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 100776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanconst char * 100876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstrerror(errno) 100976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint errno; 101076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 101176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static char buf[64]; 101276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 101376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (errno < 1 || errno >= sys_nerr) { 101476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sprintf(buf, "Unknown error %d", errno); 101576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return buf; 101676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 101776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return sys_errlist[errno]; 101876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 101976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 102076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* HAVE_STERRROR */ 102176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 102276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_STRSIGNAL 102376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 102476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef SYS_SIGLIST_DECLARED 102576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef HAVE__SYS_SIGLIST 102676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman extern char *_sys_siglist[]; 102776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else 102876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman extern char *sys_siglist[]; 102976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 103076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SYS_SIGLIST_DECLARED */ 103176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 103276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanconst char * 103376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstrsignal(sig) 103476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint sig; 103576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 103676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static char buf[64]; 103776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 103876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (sig < 1 || sig >= NSIG) { 103976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sprintf(buf, "Unknown signal %d", sig); 104076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return buf; 104176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 104276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef HAVE__SYS_SIGLIST 104376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return _sys_siglist[sig]; 104476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else 104576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return sys_siglist[sig]; 104676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 104776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 104876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 104976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* HAVE_STRSIGNAL */ 105076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 105176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SVR4 105276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 105376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 105476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanrebuild_pollv() 105576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 105676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i, j; 105776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 105876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 105976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = j = 0, tcp = tcbtab; i < MAX_PROCS; i++, tcp++) { 106076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!(tcp->flags & TCB_INUSE)) 106176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 106276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollv[j].fd = tcp->pfd; 10639ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman pollv[j].events = POLLWANT; 106476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman j++; 106576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 106676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (j != nprocs) { 106776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "strace: proc miscount\n"); 106876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 106976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 107076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 107176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 107276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 107376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 107476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 107576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanproc_poll_open() 107676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 107776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int arg; 107876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 107976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 108076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pipe(proc_poll_pipe) < 0) { 108176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("pipe"); 108276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 108376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 108476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0; i < 2; i++) { 108576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((arg = fcntl(proc_poll_pipe[i], F_GETFD)) < 0) { 108676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("F_GETFD"); 108776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 108876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 108976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (fcntl(proc_poll_pipe[i], F_SETFD, arg|FD_CLOEXEC) < 0) { 109076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("F_SETFD"); 109176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 109276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 109376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 109476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 109576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 109676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 109776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanproc_poll(pollv, nfds, timeout) 109876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct pollfd *pollv; 109976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint nfds; 110076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint timeout; 110176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 110276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 110376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int n; 110476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct proc_pollfd pollinfo; 110576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 110676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((n = read(proc_poll_pipe[0], &pollinfo, sizeof(pollinfo))) < 0) 110776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return n; 110876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (n != sizeof(struct proc_pollfd)) { 110976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "panic: short read: %d\n", n); 111076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 111176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 111276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0; i < nprocs; i++) { 111376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pollv[i].fd == pollinfo.fd) 111476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollv[i].revents = pollinfo.revents; 111576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 111676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollv[i].revents = 0; 111776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 111876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman poller_pid = pollinfo.pid; 111976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 1; 112076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 112176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 112276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 112376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanwakeup_handler(sig) 112476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint sig; 112576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 112676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 112776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 112876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic void 112976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanproc_poller(pfd) 113076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint pfd; 113176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 113276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct proc_pollfd pollinfo; 113376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct sigaction sa; 113476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigset_t blocked_set, empty_set; 113576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i; 113676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int n; 113776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct rlimit rl; 113876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 113976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (fork()) { 114076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case -1: 114176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("fork"); 114276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman _exit(0); 114376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 0: 114476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 114576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 114676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return; 114776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 114876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 114976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = interactive ? SIG_DFL : SIG_IGN; 115076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_flags = 0; 115176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&sa.sa_mask); 115276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGHUP, &sa, NULL); 115376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGINT, &sa, NULL); 115476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGQUIT, &sa, NULL); 115576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGPIPE, &sa, NULL); 115676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGTERM, &sa, NULL); 115776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sa.sa_handler = wakeup_handler; 115876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaction(SIGUSR1, &sa, NULL); 115976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&blocked_set); 116076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigaddset(&blocked_set, SIGUSR1); 116176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigprocmask(SIG_BLOCK, &blocked_set, NULL); 116276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigemptyset(&empty_set); 116376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 116476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (getrlimit(RLIMIT_NOFILE, &rl) < 0) { 116576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("getrlimit(RLIMIT_NOFILE, ...)"); 116676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman _exit(0); 116776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 116876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman n = rl.rlim_cur; 116976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0; i < n; i++) { 117076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (i != pfd && i != proc_poll_pipe[1]) 117176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman close(i); 117276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 117376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 117476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollinfo.fd = pfd; 117576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollinfo.pid = getpid(); 117676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (;;) { 11779ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (ioctl(pfd, PIOCWSTOP, NULL) < 0) 11789ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman { 117976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (errno) { 118076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case EINTR: 118176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 118276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case EBADF: 118376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollinfo.revents = POLLERR; 118476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 118576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case ENOENT: 118676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pollinfo.revents = POLLHUP; 118776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 118876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 118976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("proc_poller: PIOCWSTOP"); 119076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 119176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman write(proc_poll_pipe[1], &pollinfo, sizeof(pollinfo)); 119276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman _exit(0); 119376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 11949ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman pollinfo.revents = POLLWANT; 119576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman write(proc_poll_pipe[1], &pollinfo, sizeof(pollinfo)); 119676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigsuspend(&empty_set); 119776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 119876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 119976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 120076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 120176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 120276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 120376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchoose_pfd() 120476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 120576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int i, j; 120676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 120776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 120876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static int last; 120976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 121076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (followfork < 2 && 12119ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman last < nprocs && (pollv[last].revents & POLLWANT)) { 121276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 121376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * The previous process is ready to run again. We'll 121476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * let it do so if it is currently in a syscall. This 121576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * heuristic improves the readability of the trace. 121676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 121776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp = pfd2tcb(pollv[last].fd); 121876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp && (tcp->flags & TCB_INSYSCALL)) 121976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return pollv[last].fd; 122076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 122176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 122276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (i = 0; i < nprocs; i++) { 122376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Let competing children run round robin. */ 122476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman j = (i + last + 1) % nprocs; 122576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pollv[j].revents & (POLLHUP | POLLERR)) { 122676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp = pfd2tcb(pollv[j].fd); 122776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!tcp) { 122876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "strace: lost proc\n"); 122976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 123076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 123176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 123276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 123376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 12349ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (pollv[j].revents & POLLWANT) { 123576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman last = j; 123676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return pollv[j].fd; 123776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 123876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 123976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "strace: nothing ready\n"); 124076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 124176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 124276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 124376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 124476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermantrace() 124576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 124676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 124776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int pfd; 124876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int what; 124976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int ioctl_result = 0, ioctl_errno = 0; 12509ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman long arg; 125176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 125276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman for (;;) { 125376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interactive) 125476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigprocmask(SIG_SETMASK, &empty_set, NULL); 125576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 125676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (nprocs == 0) 125776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 125876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 125976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (nprocs) { 126076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case 1: 126176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 126276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_poll_pipe[0] == -1) { 126376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 126476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp = pid2tcb(0); 126576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!tcp) 126676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 126776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pfd = tcp->pfd; 126876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pfd == -1) 126976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 127076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 127176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 127276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 127376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* fall through ... */ 127476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 127576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 127676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef HAVE_POLLABLE_PROCFS 127776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (poll(pollv, nprocs, INFTIM) < 0) { 127876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interrupted) 127976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 128076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 128176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 128276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !HAVE_POLLABLE_PROCFS */ 128376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_poll(pollv, nprocs, INFTIM) < 0) { 128476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interrupted) 128576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 128676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 128776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 128876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 128976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pfd = choose_pfd(); 129076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pfd == -1) 129176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 129276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 129376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 129476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 129576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Look up `pfd' in our table. */ 129676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp = pfd2tcb(pfd)) == NULL) { 129776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "unknown pfd: %u\n", pfd); 129876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 129976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 130076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Get the status of the process. */ 130176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!interrupted) { 13029ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman ioctl_result = IOCTL_WSTOP (tcp); 130376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman ioctl_errno = errno; 130476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifndef HAVE_POLLABLE_PROCFS 130576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (proc_poll_pipe[0] != -1) { 130676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ioctl_result < 0) 130776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(poller_pid, SIGKILL); 130876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 130976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman kill(poller_pid, SIGUSR1); 131076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 131176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !HAVE_POLLABLE_PROCFS */ 131276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 131376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interrupted) 131476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 131576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 131676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interactive) 131776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigprocmask(SIG_BLOCK, &blocked_set, NULL); 131876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 131976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ioctl_result < 0) { 132076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Find out what happened if it failed. */ 132176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (ioctl_errno) { 132276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case EINTR: 132376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case EBADF: 132476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 132576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case ENOENT: 132676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 132776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 132876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 132976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCWSTOP"); 133076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 133176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 133276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 133376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 133476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* clear the just started flag */ 133576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags &= ~TCB_STARTUP; 133676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 133776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* set current output file */ 133876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman outf = tcp->outf; 133976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 134076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (cflag) { 134176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct timeval stime; 134276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 134376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman stime.tv_sec = tcp->status.pr_stime.tv_sec; 134476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman stime.tv_usec = tcp->status.pr_stime.tv_nsec/1000; 134576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tv_sub(&tcp->dtime, &stime, &tcp->stime); 134676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->stime = stime; 134776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 134876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 13499ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman what = tcp->status.PR_WHAT; 13509ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman switch (tcp->status.PR_WHY) { 135176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case PR_REQUESTED: 13529ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (tcp->status.PR_FLAGS & PR_ASLEEP) { 13539ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman tcp->status.PR_WHY = PR_SYSENTRY; 135476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (trace_syscall(tcp) < 0) { 135576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "syscall trouble\n"); 135676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 135776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 135876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 135976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 136076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case PR_SYSENTRY: 136176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case PR_SYSEXIT: 136276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (trace_syscall(tcp) < 0) { 136376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "syscall trouble\n"); 136476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 136576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 136676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 136776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case PR_SIGNALLED: 136876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!cflag && (qual_flags[what] & QUAL_SIGNAL)) { 136976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printleader(tcp); 137076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("--- %s (%s) ---", 1371ce780fc9e6067b15b65ca2904c698c77503bf635Nate Sammons signame(what), strsignal(what)); 137276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printtrailer(tcp); 137376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 137476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 137576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case PR_FAULTED: 137676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!cflag && (qual_flags[what] & QUAL_FAULT)) { 137776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printleader(tcp); 137876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("=== FAULT %d ===", what); 137976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printtrailer(tcp); 138076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 138176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 138276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 13839ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman fprintf(stderr, "odd stop %d\n", tcp->status.PR_WHY); 138476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 138576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman break; 138676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 13879ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman arg = 0; 13889ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (IOCTL (tcp->pfd, PIOCRUN, &arg) < 0) { 138976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("PIOCRUN"); 139076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 139176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 139276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 139376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 139476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 139576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 139676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else /* !SVR4 */ 139776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 139876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int 139976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermantrace() 140076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 140176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int pid; 140276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int wait_errno; 140376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman int status; 140476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct tcb *tcp; 140576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef LINUX 140676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct rusage ru; 140776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* LINUX */ 140876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 140976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman while (nprocs != 0) { 141076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interactive) 141176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigprocmask(SIG_SETMASK, &empty_set, NULL); 141276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef LINUX 141376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pid = wait4(-1, &status, 0, cflag ? &ru : NULL); 141476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* LINUX */ 141576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SUNOS4 141676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pid = wait(&status); 141776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SUNOS4 */ 141876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman wait_errno = errno; 141976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interactive) 142076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman sigprocmask(SIG_BLOCK, &blocked_set, NULL); 142176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 142276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (interrupted) 142376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 142476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 142576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (pid == -1) { 142676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman switch (wait_errno) { 142776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case EINTR: 142876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 142976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman case ECHILD: 143076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 143176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * We would like to verify this case 143276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * but sometimes a race in Solbourne's 143376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * version of SunOS sometimes reports 143476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * ECHILD before sending us SIGCHILD. 143576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 143676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#if 0 143776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (nprocs == 0) 143876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 143976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "strace: proc miscount\n"); 144076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 144176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 144276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 144376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman default: 144476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman errno = wait_errno; 144576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: wait"); 144676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 144776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 144876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 144976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (debug) 145076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, " [wait(%#x) = %u]\n", status, pid); 145176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 145276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* Look up `pid' in our table. */ 145376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp = pid2tcb(pid)) == NULL) { 145476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "unknown pid: %u\n", pid); 145576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WIFSTOPPED(status)) 145676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman ptrace(PTRACE_CONT, pid, (char *) 1, 0); 145776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman exit(1); 145876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 145976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* set current output file */ 146076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman outf = tcp->outf; 146176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (cflag) { 146276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef LINUX 146376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tv_sub(&tcp->dtime, &ru.ru_stime, &tcp->stime); 146476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->stime = ru.ru_stime; 146576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !LINUX */ 146676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 146776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 146876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_SUSPENDED) { 146976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 147076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Apparently, doing any ptrace() call on a stopped 147176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * process, provokes the kernel to report the process 147276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * status again on a subsequent wait(), even if the 147376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * process has not been actually restarted. 147476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Since we have inspected the arguments of suspended 147576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * processes we end up here testing for this case. 147676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 147776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 147876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 147976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WIFSIGNALED(status)) { 148076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!cflag 148176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman && (qual_flags[WTERMSIG(status)] & QUAL_SIGNAL)) { 148276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printleader(tcp); 148376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("+++ killed by %s +++", 1484ce780fc9e6067b15b65ca2904c698c77503bf635Nate Sammons signame(WTERMSIG(status))); 148576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printtrailer(tcp); 148676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 148776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 148876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 148976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 149076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WIFEXITED(status)) { 149176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (debug) 149276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "pid %u exited\n", pid); 149376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_ATTACHED) 149476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, 149576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "PANIC: attached pid %u exited\n", 149676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pid); 149776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 149876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 149976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 150076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!WIFSTOPPED(status)) { 150176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "PANIC: pid %u not stopped\n", pid); 150276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 150376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 150476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 150576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (debug) 150676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "pid %u stopped, [%s]\n", 1507ce780fc9e6067b15b65ca2904c698c77503bf635Nate Sammons pid, signame(WSTOPSIG(status))); 150876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 150976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_STARTUP) { 151076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 151176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * This flag is there to keep us in sync. 151276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Next time this process stops it should 151376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * really be entering a system call. 151476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 151576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags &= ~TCB_STARTUP; 151676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_ATTACHED) { 151776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 151876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Interestingly, the process may stop 151976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * with STOPSIG equal to some other signal 152076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * than SIGSTOP if we happend to attach 152176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * just before the process takes a signal. 152276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 152376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!WIFSTOPPED(status)) { 152476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, 152576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman "pid %u not stopped\n", pid); 152676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman detach(tcp, WSTOPSIG(status)); 152776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 152876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 152976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 153076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 153176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef SUNOS4 153276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* A child of us stopped at exec */ 153376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WSTOPSIG(status) == SIGTRAP && followvfork) 153476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fixvfork(tcp); 153576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* SUNOS4 */ 153676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 153776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_BPTSET) { 153876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (clearbpt(tcp) < 0) /* Pretty fatal */ { 153976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 154076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 154176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 154276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 154376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 154476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman goto tracing; 154576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 154676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 154776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WSTOPSIG(status) != SIGTRAP) { 154876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (WSTOPSIG(status) == SIGSTOP && 154976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman (tcp->flags & TCB_SIGTRAPPED)) { 155076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman /* 155176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Trapped attempt to block SIGTRAP 155276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman * Hope we are back in control now. 155376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman */ 155476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags &= ~(TCB_INSYSCALL | TCB_SIGTRAPPED); 155576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_SYSCALL, 155676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman pid, (char *) 1, 0) < 0) { 155776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("trace: ptrace(PTRACE_SYSCALL, ...)"); 155876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 155976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 156076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 156176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 156276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 156376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!cflag 156476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman && (qual_flags[WSTOPSIG(status)] & QUAL_SIGNAL)) { 156576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printleader(tcp); 156676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("--- %s (%s) ---", 1567ce780fc9e6067b15b65ca2904c698c77503bf635Nate Sammons signame(WSTOPSIG(status)), 156876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strsignal(WSTOPSIG(status))); 156976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printtrailer(tcp); 157076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 157176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((tcp->flags & TCB_ATTACHED) && 157276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman !sigishandled(tcp, WSTOPSIG(status))) { 157376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman detach(tcp, WSTOPSIG(status)); 157476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 157576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 157676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_SYSCALL, pid, (char *) 1, 157776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman WSTOPSIG(status)) < 0) { 157876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("trace: ptrace(PTRACE_SYSCALL, ...)"); 157976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 158076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 158176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 158276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->flags &= ~TCB_SUSPENDED; 158376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 158476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 158576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (trace_syscall(tcp) < 0) { 158676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_ATTACHED) 158776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman detach(tcp, 0); 158876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 158976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman ptrace(PTRACE_KILL, 159076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp->pid, (char *) 1, SIGTERM); 159176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman droptcb(tcp); 159276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 159376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 159476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 159576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_EXITING) { 159676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_ATTACHED) 159776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman detach(tcp, 0); 159876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (ptrace(PTRACE_CONT, pid, (char *) 1, 0) < 0) { 159976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("strace: ptrace(PTRACE_CONT, ...)"); 160076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 160176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 160276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 160376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 160476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 160576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp->flags & TCB_SUSPENDED) { 160676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (!qflag) 160776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman fprintf(stderr, "Process %u suspended\n", pid); 160876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman continue; 160976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 161076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tracing: 161176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (ptrace(PTRACE_SYSCALL, pid, (char *) 1, 0) < 0) { 161276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman perror("trace: ptrace(PTRACE_SYSCALL, ...)"); 161376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman cleanup(); 161476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return -1; 161576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 161676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 161776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return 0; 161876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 161976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 162076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif /* !SVR4 */ 162176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 162276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstatic int curcol; 162376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 162476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef __STDC__ 162576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <stdarg.h> 162676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#define VA_START(a, b) va_start(a, b) 162776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else 162876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#include <varargs.h> 162976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#define VA_START(a, b) va_start(a) 163076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 163176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 163276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 163376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#ifdef __STDC__ 163476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermantprintf(const char *fmt, ...) 163576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#else 163676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermantprintf(fmt, va_alist) 163776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanchar *fmt; 163876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanva_dcl 163976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman#endif 164076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 164176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman va_list args; 164276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 164376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman VA_START(args, fmt); 164476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (outf) 164576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman curcol += vfprintf(outf, fmt, args); 164676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman va_end(args); 164776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman return; 164876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 164976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 165076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 165176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanprintleader(tcp) 165276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 165376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 165476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tcp_last && (!outfname || followfork < 2 || tcp_last == tcp)) { 165576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp_last->flags |= TCB_REPRINT; 165676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf(" <unfinished ...>\n"); 165776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 165876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman curcol = 0; 165976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if ((followfork == 1 || pflag_seen > 1) && outfname) 166076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%-5d ", tcp->pid); 166176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (nprocs > 1 && !outfname) 166276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("[pid %5u] ", tcp->pid); 166376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tflag) { 166476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman char str[sizeof("HH:MM:SS")]; 166576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman struct timeval tv, dtv; 166676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman static struct timeval otv; 166776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 166876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman gettimeofday(&tv, NULL); 166976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (rflag) { 167076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (otv.tv_sec == 0) 167176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman otv = tv; 167276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tv_sub(&dtv, &tv, &otv); 167376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%6ld.%06ld ", 167476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman (long) dtv.tv_sec, (long) dtv.tv_usec); 167576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman otv = tv; 167676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 167776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else if (tflag > 2) { 167876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%ld.%06ld ", 167976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman (long) tv.tv_sec, (long) tv.tv_usec); 168076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 168176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else { 168276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman time_t local = tv.tv_sec; 168376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman strftime(str, sizeof(str), "%T", localtime(&local)); 168476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (tflag > 1) 168576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%s.%06ld ", str, (long) tv.tv_usec); 168676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman else 168776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%s ", str); 168876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 168976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman } 169076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (iflag) 169176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman printcall(tcp); 169276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 169376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 169476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 169576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermantabto(col) 169676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanint col; 169776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 169876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman if (curcol < col) 169976baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("%*s", col - curcol, ""); 170076baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 170176baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman 170276baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanvoid 170376baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanprinttrailer(tcp) 170476baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkermanstruct tcb *tcp; 170576baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman{ 170676baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tprintf("\n"); 170776baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman tcp_last = NULL; 170876baf7c9f6dd61a15524ad43c1b690c252cf5b7Wichert Akkerman} 17099ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 17109ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#ifdef SVR4_MP 17119ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 17129ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkermanint mp_ioctl (int fd, int cmd, void *arg, int size) { 17139ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 17149ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman struct iovec iov[2]; 17159ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman int n = 1; 17169ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 17179ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman iov[0].iov_base = &cmd; 17189ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman iov[0].iov_len = sizeof cmd; 17199ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman if (arg) { 17209ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman ++n; 17219ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman iov[1].iov_base = arg; 17229ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman iov[1].iov_len = size; 17239ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman } 17249ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 17259ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman return writev (fd, iov, n); 17269ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman} 17279ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman 17289ce1a63eb20b069607c06f9645ac5a17b418a5f3Wichert Akkerman#endif 1729