desc.c revision 46100d07257824da2ae1147da0324b5788c95501 
1/*
2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 *    derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 *	$Id$
31 */
32
33#include "defs.h"
34
35#include <fcntl.h>
36#include <sys/file.h>
37#ifdef LINUX
38#include <inttypes.h>
39#endif
40#ifdef HAVE_SYS_EPOLL_H
41#include <sys/epoll.h>
42#endif
43#ifdef HAVE_LIBAIO_H
44#include <libaio.h>
45#endif
46
47#if HAVE_LONG_LONG_OFF_T
48/*
49 * Hacks for systems that have a long long off_t
50 */
51#define flock64	flock		/* Horrid hack */
52#define printflock printflock64	/* Horrider hack */
53#endif
54
55
56static const struct xlat fcntlcmds[] = {
57	{ F_DUPFD,	"F_DUPFD"	},
58	{ F_GETFD,	"F_GETFD"	},
59	{ F_SETFD,	"F_SETFD"	},
60	{ F_GETFL,	"F_GETFL"	},
61	{ F_SETFL,	"F_SETFL"	},
62	{ F_GETLK,	"F_GETLK"	},
63	{ F_SETLK,	"F_SETLK"	},
64	{ F_SETLKW,	"F_SETLKW"	},
65	{ F_GETOWN,	"F_GETOWN"	},
66	{ F_SETOWN,	"F_SETOWN"	},
67#ifdef F_RSETLK
68	{ F_RSETLK,	"F_RSETLK"	},
69#endif
70#ifdef F_RSETLKW
71	{ F_RSETLKW,	"F_RSETLKW"	},
72#endif
73#ifdef F_RGETLK
74	{ F_RGETLK,	"F_RGETLK"	},
75#endif
76#ifdef F_CNVT
77	{ F_CNVT,	"F_CNVT"	},
78#endif
79#ifdef F_SETSIG
80	{ F_SETSIG,	"F_SETSIG"	},
81#endif
82#ifdef F_GETSIG
83	{ F_GETSIG,	"F_GETSIG"	},
84#endif
85#ifdef F_CHKFL
86	{ F_CHKFL,	"F_CHKFL"	},
87#endif
88#ifdef F_DUP2FD
89	{ F_DUP2FD,	"F_DUP2FD"	},
90#endif
91#ifdef F_ALLOCSP
92	{ F_ALLOCSP,	"F_ALLOCSP"	},
93#endif
94#ifdef F_ISSTREAM
95	{ F_ISSTREAM,	"F_ISSTREAM"	},
96#endif
97#ifdef F_PRIV
98	{ F_PRIV,	"F_PRIV"	},
99#endif
100#ifdef F_NPRIV
101	{ F_NPRIV,	"F_NPRIV"	},
102#endif
103#ifdef F_QUOTACL
104	{ F_QUOTACL,	"F_QUOTACL"	},
105#endif
106#ifdef F_BLOCKS
107	{ F_BLOCKS,	"F_BLOCKS"	},
108#endif
109#ifdef F_BLKSIZE
110	{ F_BLKSIZE,	"F_BLKSIZE"	},
111#endif
112#ifdef F_GETOWN
113	{ F_GETOWN,	"F_GETOWN"	},
114#endif
115#ifdef F_SETOWN
116	{ F_SETOWN,	"F_SETOWN"	},
117#endif
118#ifdef F_REVOKE
119	{ F_REVOKE,	"F_REVOKE"	},
120#endif
121#ifdef F_SETLK
122	{ F_SETLK,	"F_SETLK"	},
123#endif
124#ifdef F_SETLKW
125	{ F_SETLKW,	"F_SETLKW"	},
126#endif
127#ifdef F_FREESP
128	{ F_FREESP,	"F_FREESP"	},
129#endif
130#ifdef F_GETLK
131	{ F_GETLK,	"F_GETLK"	},
132#endif
133#ifdef F_SETLK64
134	{ F_SETLK64,	"F_SETLK64"	},
135#endif
136#ifdef F_SETLKW64
137	{ F_SETLKW64,	"F_SETLKW64"	},
138#endif
139#ifdef F_FREESP64
140	{ F_FREESP64,	"F_FREESP64"	},
141#endif
142#ifdef F_GETLK64
143	{ F_GETLK64,	"F_GETLK64"	},
144#endif
145#ifdef F_SHARE
146	{ F_SHARE,	"F_SHARE"	},
147#endif
148#ifdef F_UNSHARE
149	{ F_UNSHARE,	"F_UNSHARE"	},
150#endif
151	{ 0,		NULL		},
152};
153
154static const struct xlat fdflags[] = {
155#ifdef FD_CLOEXEC
156	{ FD_CLOEXEC,	"FD_CLOEXEC"	},
157#endif
158	{ 0,		NULL		},
159};
160
161#ifdef LOCK_SH
162
163static const struct xlat flockcmds[] = {
164	{ LOCK_SH,	"LOCK_SH"	},
165	{ LOCK_EX,	"LOCK_EX"	},
166	{ LOCK_NB,	"LOCK_NB"	},
167	{ LOCK_UN,	"LOCK_UN"	},
168	{ 0,		NULL		},
169};
170
171#endif /* LOCK_SH */
172
173static const struct xlat lockfcmds[] = {
174	{ F_RDLCK,	"F_RDLCK"	},
175	{ F_WRLCK,	"F_WRLCK"	},
176	{ F_UNLCK,	"F_UNLCK"	},
177#ifdef F_EXLCK
178	{ F_EXLCK,	"F_EXLCK"	},
179#endif
180#ifdef F_SHLCK
181	{ F_SHLCK,	"F_SHLCK"	},
182#endif
183	{ 0,		NULL		},
184};
185
186static const struct xlat whence[] = {
187	{ SEEK_SET,	"SEEK_SET"	},
188	{ SEEK_CUR,	"SEEK_CUR"	},
189	{ SEEK_END,	"SEEK_END"	},
190	{ 0,		NULL		},
191};
192
193#ifndef HAVE_LONG_LONG_OFF_T
194/* fcntl/lockf */
195static void
196printflock(tcp, addr, getlk)
197struct tcb *tcp;
198long addr;
199int getlk;
200{
201	struct flock fl;
202
203	if (umove(tcp, addr, &fl) < 0) {
204		tprintf("{...}");
205		return;
206	}
207	tprintf("{type=");
208	printxval(lockfcmds, fl.l_type, "F_???");
209	tprintf(", whence=");
210	printxval(whence, fl.l_whence, "SEEK_???");
211	tprintf(", start=%ld, len=%ld", fl.l_start, fl.l_len);
212	if (getlk)
213		tprintf(", pid=%lu}", (unsigned long) fl.l_pid);
214	else
215		tprintf("}");
216}
217#endif
218
219#if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
220/* fcntl/lockf */
221static void
222printflock64(tcp, addr, getlk)
223struct tcb *tcp;
224long addr;
225int getlk;
226{
227	struct flock64 fl;
228
229	if (umove(tcp, addr, &fl) < 0) {
230		tprintf("{...}");
231		return;
232	}
233	tprintf("{type=");
234	printxval(lockfcmds, fl.l_type, "F_???");
235	tprintf(", whence=");
236	printxval(whence, fl.l_whence, "SEEK_???");
237	tprintf(", start=%lld, len=%lld", (long long) fl.l_start, (long long) fl.l_len);
238	if (getlk)
239		tprintf(", pid=%lu}", (unsigned long) fl.l_pid);
240	else
241		tprintf("}");
242}
243#endif
244
245static char *
246sprintflags(xlat, flags)
247const struct xlat *xlat;
248int flags;
249{
250	static char outstr[1024];
251	char *sep;
252
253	strcpy(outstr, "flags ");
254	sep = "";
255	for (; xlat->str; xlat++) {
256		if ((flags & xlat->val) == xlat->val) {
257			sprintf(outstr + strlen(outstr),
258				"%s%s", sep, xlat->str);
259			sep = "|";
260			flags &= ~xlat->val;
261		}
262	}
263	if (flags)
264		sprintf(outstr + strlen(outstr),
265			"%s%#x", sep, flags);
266	return outstr;
267}
268
269int
270sys_fcntl(tcp)
271struct tcb *tcp;
272{
273	extern const struct xlat openmodes[];
274
275	if (entering(tcp)) {
276		tprintf("%ld, ", tcp->u_arg[0]);
277		printxval(fcntlcmds, tcp->u_arg[1], "F_???");
278		switch (tcp->u_arg[1]) {
279		case F_SETFD:
280			tprintf(", ");
281			if (printflags(fdflags, tcp->u_arg[2]) == 0)
282				tprintf("0");
283			break;
284		case F_SETOWN: case F_DUPFD:
285			tprintf(", %ld", tcp->u_arg[2]);
286			break;
287		case F_SETFL:
288			tprintf(", ");
289			if (printflags(openmodes, tcp->u_arg[2] + 1) == 0)
290				tprintf("0");
291			break;
292		case F_SETLK: case F_SETLKW:
293#ifdef F_FREESP
294		case F_FREESP:
295#endif
296			tprintf(", ");
297			printflock(tcp, tcp->u_arg[2], 0);
298			break;
299#if _LFS64_LARGEFILE
300#ifdef F_FREESP64
301		case F_FREESP64:
302#endif
303		/* Linux glibc defines SETLK64 as SETLK,
304		   even though the kernel has different values - as does Solaris. */
305#if defined(F_SETLK64) && F_SETLK64+0!=F_SETLK
306		case F_SETLK64:
307#endif
308#if defined(F_SETLKW64) && F_SETLKW64+0!=F_SETLKW
309		case F_SETLKW64:
310#endif
311			tprintf(", ");
312			printflock64(tcp, tcp->u_arg[2], 0);
313			break;
314#endif
315 		}
316	}
317	else {
318		switch (tcp->u_arg[1]) {
319		case F_DUPFD:
320		case F_SETFD: case F_SETFL:
321		case F_SETLK: case F_SETLKW:
322		case F_SETOWN: case F_GETOWN:
323			break;
324		case F_GETFD:
325			if (tcp->u_rval == 0)
326				return 0;
327			tcp->auxstr = sprintflags(fdflags, tcp->u_rval);
328			return RVAL_HEX|RVAL_STR;
329		case F_GETFL:
330			tcp->auxstr = sprintflags(openmodes, tcp->u_rval + 1);
331			return RVAL_HEX|RVAL_STR;
332		case F_GETLK:
333			tprintf(", ");
334			printflock(tcp, tcp->u_arg[2], 1);
335			break;
336#if _LFS64_LARGEFILE
337#if defined(F_GETLK64) && F_GETLK64+0!=F_GETLK
338		case F_GETLK64:
339#endif
340			tprintf(", ");
341			printflock64(tcp, tcp->u_arg[2], 1);
342			break;
343#endif
344 		default:
345			tprintf(", %#lx", tcp->u_arg[2]);
346			break;
347		}
348	}
349	return 0;
350}
351
352#ifdef LOCK_SH
353
354int
355sys_flock(tcp)
356struct tcb *tcp;
357{
358	if (entering(tcp)) {
359		tprintf("%ld, ", tcp->u_arg[0]);
360		if (!printflags(flockcmds, tcp->u_arg[1]))
361			tprintf("LOCK_???");
362	}
363	return 0;
364}
365#endif /* LOCK_SH */
366
367int
368sys_close(tcp)
369struct tcb *tcp;
370{
371	if (entering(tcp)) {
372		tprintf("%ld", tcp->u_arg[0]);
373	}
374	return 0;
375}
376
377int
378sys_dup(tcp)
379struct tcb *tcp;
380{
381	if (entering(tcp)) {
382		tprintf("%ld", tcp->u_arg[0]);
383	}
384	return 0;
385}
386
387int
388sys_dup2(tcp)
389struct tcb *tcp;
390{
391	if (entering(tcp)) {
392		tprintf("%ld, %ld", tcp->u_arg[0], tcp->u_arg[1]);
393	}
394	return 0;
395}
396
397int
398sys_getdtablesize(tcp)
399struct tcb *tcp;
400{
401	return 0;
402}
403
404static int
405decode_select(tcp, args, bitness)
406struct tcb *tcp;
407long *args;
408int bitness;
409{
410	int i, j, nfds;
411	unsigned int fdsize = ((((args[0] + 7) / 8) + sizeof(long) - 1)
412			       & -sizeof(long));
413	fd_set *fds;
414	struct timeval tv;
415#ifdef ALPHA
416	struct timeval32 {
417		unsigned tv_sec;
418		unsigned tv_usec;
419	} *tv32;
420#endif
421	static char outstr[1024];
422	char *sep;
423	long arg;
424
425	if (entering(tcp)) {
426		fds = (fd_set *) malloc(fdsize);
427		if (fds == NULL)
428			fprintf(stderr, "out of memory\n");
429		nfds = args[0];
430		tprintf("%d", nfds);
431		for (i = 0; i < 3; i++) {
432			arg = args[i+1];
433			if (arg == 0) {
434				tprintf(", NULL");
435				continue;
436			}
437			if (fds == NULL || !verbose(tcp)) {
438				tprintf(", %#lx", arg);
439				continue;
440			}
441			if (umoven(tcp, arg, fdsize, (char *) fds) < 0) {
442				tprintf(", [?]");
443				continue;
444			}
445			tprintf(", [");
446			for (j = 0, sep = ""; j < nfds; j++) {
447				if (FD_ISSET(j, fds)) {
448					tprintf("%s%u", sep, j);
449					sep = " ";
450				}
451			}
452			tprintf("]");
453		}
454		free(fds);
455		if (!args[4])
456			tprintf(", NULL");
457		else if (!verbose(tcp))
458			tprintf(", %#lx", args[4]);
459		else if (umove(tcp, args[4], &tv) < 0)
460			tprintf(", {...}");
461		else {
462#ifdef ALPHA
463			if (bitness) {
464				tv32=(struct timeval32*)&tv;
465				tprintf(", {%u, %u}", tv32->tv_sec, tv32->tv_usec);
466			} else
467#endif
468				tprintf(", {%lu, %lu}",
469					(long) tv.tv_sec, (long) tv.tv_usec);
470		}
471	}
472	else
473	{
474		unsigned int cumlen = 0;
475		char *sep = "";
476
477		if (syserror(tcp))
478			return 0;
479
480		if ((nfds = tcp->u_rval) == 0) {
481			tcp->auxstr = "Timeout";
482			return RVAL_STR;
483		}
484
485		fds = (fd_set *) malloc(fdsize);
486		if (fds == NULL)
487			fprintf(stderr, "out of memory\n");
488
489		outstr[0] = '\0';
490		for (i = 0; i < 3; i++) {
491			int first = 1;
492			char str[20];
493
494			tcp->auxstr = outstr;
495			arg = args[i+1];
496			if (fds == NULL || !arg ||
497			    umoven(tcp, arg, fdsize, (char *) fds) < 0)
498				continue;
499			for (j = 0; j < args[0]; j++) {
500				if (FD_ISSET(j, fds)) {
501					if (first) {
502						sprintf(str, "%s%s [%u", sep,
503							i == 0 ? "in" :
504							i == 1 ? "out" :
505							"except", j);
506						first = 0;
507						sep = ", ";
508					}
509					else
510						sprintf(str, " %u", j);
511					cumlen += strlen(str);
512					if (cumlen < sizeof(outstr))
513						strcat(outstr, str);
514					nfds--;
515				}
516			}
517			if (cumlen)
518				strcat(outstr, "]");
519			if (nfds == 0)
520				break;
521		}
522		free(fds);
523#ifdef LINUX
524		/* This contains no useful information on SunOS.  */
525		if (args[4]) {
526			char str[64];
527
528			if (umove(tcp, args[4], &tv) >= 0) {
529#ifdef ALPHA
530				if (bitness) {
531					tv32=(struct timeval32*)&tv;
532					sprintf(str, "%sleft {%u, %u}", sep,
533						tv32->tv_sec, tv32->tv_usec);
534				} else
535#endif
536					sprintf(str, "%sleft {%lu, %lu}", sep,
537						(long) tv.tv_sec, (long) tv.tv_usec);
538
539				if ((cumlen += strlen(str)) < sizeof(outstr))
540					strcat(outstr, str);
541			}
542		}
543#endif /* LINUX */
544		return RVAL_STR;
545	}
546	return 0;
547}
548
549#ifdef LINUX
550
551int
552sys_oldselect(tcp)
553struct tcb *tcp;
554{
555	long args[5];
556
557	if (umoven(tcp, tcp->u_arg[0], sizeof args, (char *) args) < 0) {
558		tprintf("[...]");
559		return 0;
560	}
561	return decode_select(tcp, args, 0);
562}
563
564#ifdef ALPHA
565int
566sys_osf_select(tcp)
567struct tcb *tcp;
568{
569	long *args = tcp->u_arg;
570	return decode_select(tcp, args, 1);
571}
572#endif
573
574static struct xlat epollctls[] = {
575#ifdef EPOLL_CTL_ADD
576	{ EPOLL_CTL_ADD,	"EPOLL_CTL_ADD"	},
577#endif
578#ifdef EPOLL_CTL_MOD
579	{ EPOLL_CTL_MOD,	"EPOLL_CTL_MOD"	},
580#endif
581#ifdef EPOLL_CTL_DEL
582	{ EPOLL_CTL_DEL,	"EPOLL_CTL_DEL"	},
583#endif
584	{ 0,			NULL		}
585};
586
587static struct xlat epollevents[] = {
588#ifdef EPOLLIN
589	{ EPOLLIN,	"EPOLLIN"	},
590#endif
591#ifdef EPOLLPRI
592	{ EPOLLPRI,	"EPOLLPRI"	},
593#endif
594#ifdef EPOLLOUT
595	{ EPOLLOUT,	"EPOLLOUT"	},
596#endif
597#ifdef EPOLLRDNORM
598	{ EPOLLRDNORM,	"EPOLLRDNORM"	},
599#endif
600#ifdef EPOLLRDBAND
601	{ EPOLLRDBAND,	"EPOLLRDBAND"	},
602#endif
603#ifdef EPOLLWRNORM
604	{ EPOLLWRNORM,	"EPOLLWRNORM"	},
605#endif
606#ifdef EPOLLWRBAND
607	{ EPOLLWRBAND,	"EPOLLWRBAND"	},
608#endif
609#ifdef EPOLLMSG
610	{ EPOLLMSG,	"EPOLLMSG"	},
611#endif
612#ifdef EPOLLERR
613	{ EPOLLERR,	"EPOLLERR"	},
614#endif
615#ifdef EPOLLHUP
616	{ EPOLLHUP,	"EPOLLHUP"	},
617#endif
618#ifdef EPOLLONESHOT
619	{ EPOLLONESHOT,	"EPOLLONESHOT"	},
620#endif
621#ifdef EPOLLET
622	{ EPOLLET,	"EPOLLET"	},
623#endif
624	{ 0,		NULL		}
625};
626
627int
628sys_epoll_create(tcp)
629struct tcb *tcp;
630{
631	if (entering(tcp))
632		tprintf("%ld", tcp->u_arg[0]);
633	return 0;
634}
635
636#ifdef HAVE_SYS_EPOLL_H
637static void
638print_epoll_event(ev)
639struct epoll_event *ev;
640{
641	tprintf("{");
642	if (printflags(epollevents, ev->events) == 0)
643		tprintf("0");
644	/* We cannot know what format the program uses, so print u32 and u64
645	   which will cover every value.  */
646	tprintf(", {u32=%" PRIu32 ", u64=%" PRIu64 "}}",
647		ev->data.u32, ev->data.u64);
648}
649#endif
650
651int
652sys_epoll_ctl(tcp)
653struct tcb *tcp;
654{
655	if (entering(tcp)) {
656		tprintf("%ld, ", tcp->u_arg[0]);
657                printxval(epollctls, tcp->u_arg[1], "EPOLL_CTL_???");
658		tprintf(", %ld, ", tcp->u_arg[2]);
659		if (tcp->u_arg[3] == 0)
660			tprintf("NULL");
661		else {
662#ifdef HAVE_SYS_EPOLL_H
663			struct epoll_event ev;
664			if (umove(tcp, tcp->u_arg[3], &ev) == 0)
665				print_epoll_event(&ev);
666			else
667#endif
668				tprintf("{...}");
669		}
670	}
671	return 0;
672}
673
674int
675sys_epoll_wait(tcp)
676struct tcb *tcp;
677{
678	if (entering(tcp))
679		tprintf("%ld, ", tcp->u_arg[0]);
680	else {
681		if (syserror(tcp))
682			tprintf("%lx", tcp->u_arg[1]);
683		else if (tcp->u_rval == 0)
684			tprintf("{}");
685		else {
686#ifdef HAVE_SYS_EPOLL_H
687			struct epoll_event evs[tcp->u_rval];
688			if (umove(tcp, tcp->u_arg[1], evs) == 0) {
689				unsigned long i;
690				tprintf("{");
691				for (i = 0; i < tcp->u_rval; ++i) {
692					if (i > 0)
693						tprintf(", ");
694					print_epoll_event(&evs[i]);
695				}
696				tprintf("}");
697			}
698			else
699#endif
700				tprintf("{...}");
701		}
702		tprintf(", %ld, %ld", tcp->u_arg[2], tcp->u_arg[3]);
703	}
704	return 0;
705}
706
707int
708sys_io_setup(tcp)
709struct tcb *tcp;
710{
711	if (entering(tcp))
712		tprintf("%ld, ", tcp->u_arg[0]);
713	else {
714		if (syserror(tcp))
715			tprintf("0x%0lx", tcp->u_arg[1]);
716		else {
717			unsigned long user_id;
718			if (umove(tcp, tcp->u_arg[1], &user_id) == 0)
719				tprintf("{%lu}", user_id);
720			else
721				tprintf("{...}");
722		}
723	}
724	return 0;
725}
726
727int
728sys_io_destroy(tcp)
729struct tcb *tcp;
730{
731	if (entering(tcp))
732		tprintf("%lu", tcp->u_arg[0]);
733	return 0;
734}
735
736int
737sys_io_submit(tcp)
738struct tcb *tcp;
739{
740	long nr;
741	if (entering(tcp)) {
742		tprintf("%lu, %ld, ", tcp->u_arg[0], tcp->u_arg[1]);
743		nr = tcp->u_arg[1];
744		/* and if nr is negative? */
745		if (nr == 0)
746			tprintf("{}");
747		else {
748#ifdef HAVE_LIBAIO_H
749			long i;
750			struct iocb *iocbp, **iocbs = (void *)tcp->u_arg[2];
751
752			for (i = 0; i < nr; i++, iocbs++) {
753				struct iocb iocb;
754				if (i == 0)
755					tprintf("{");
756				else
757					tprintf(", ");
758
759				if (umove(tcp, (unsigned long)iocbs, &iocbp) ||
760				    umove(tcp, (unsigned long)iocbp, &iocb)) {
761					tprintf("{...}");
762					continue;
763				}
764				tprintf("{%p, %u, %hu, %hu, %d}",
765					iocb.data, iocb.key,
766					iocb.aio_lio_opcode,
767					iocb.aio_reqprio, iocb.aio_fildes);
768			}
769			if (i)
770				tprintf("}");
771#else
772			tprintf("{...}");
773#endif
774		}
775	}
776	return 0;
777}
778
779int
780sys_io_cancel(tcp)
781struct tcb *tcp;
782{
783	if (entering(tcp)) {
784#ifdef HAVE_LIBAIO_H
785		struct iocb iocb;
786#endif
787		tprintf("%lu, ", tcp->u_arg[0]);
788#ifdef HAVE_LIBAIO_H
789		if (umove(tcp, tcp->u_arg[1], &iocb) == 0) {
790			tprintf("{%p, %u, %hu, %hu, %d}, ",
791				iocb.data, iocb.key,
792				iocb.aio_lio_opcode,
793				iocb.aio_reqprio, iocb.aio_fildes);
794		} else
795#endif
796			tprintf("{...}, ");
797	} else {
798		if (tcp->u_rval < 0)
799			tprintf("{...}");
800		else {
801#ifdef HAVE_LIBAIO_H
802			struct io_event event;
803			if (umove(tcp, tcp->u_arg[2], &event) == 0)
804				tprintf("{%p, %p, %ld, %ld}",
805					event.data, event.obj,
806					event.res, event.res2);
807			else
808#endif
809				tprintf("{...}");
810		}
811	}
812	return 0;
813}
814
815int
816sys_io_getevents(tcp)
817struct tcb *tcp;
818{
819	if (entering(tcp)) {
820		tprintf("%ld, %ld, %ld, ", tcp->u_arg[0], tcp->u_arg[1],
821			tcp->u_arg[2]);
822	} else {
823		if (tcp->u_rval == 0) {
824			tprintf("{}");
825		} else  {
826#ifdef HAVE_LIBAIO_H
827			struct io_event *events = (void *)tcp->u_arg[3];
828			long i, nr = tcp->u_rval;
829
830			for (i = 0; i < nr; i++, events++) {
831				struct io_event event;
832
833				if (i == 0)
834					tprintf("{");
835				else
836					tprintf(", ");
837
838				if (umove(tcp, (unsigned long)events, &event) != 0) {
839					tprintf("{...}");
840					continue;
841				}
842				tprintf("{%p, %p, %ld, %ld}", event.data,
843					event.obj, event.res, event.res2);
844			}
845			tprintf("}, ");
846#else
847				tprintf("{...}");
848#endif
849		}
850
851		if (tcp->u_arg[4] == 0)
852			tprintf("NULL");
853		else {
854			struct timespec to;
855			if (umove(tcp, tcp->u_arg[4], &to) == 0)
856				tprintf("{%lu, %lu}", to.tv_sec, to.tv_nsec);
857			else
858				tprintf("{...}");
859		}
860	}
861	return 0;
862}
863#endif /* LINUX */
864
865int
866sys_select(tcp)
867struct tcb *tcp;
868{
869	long *args = tcp->u_arg;
870	return decode_select(tcp, args, 0);
871}
872