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: desc.c,v 1.22 2005/06/01 19:22:07 roland Exp $
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
56 static 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
154 static 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
163 static 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
173 static 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
186 static 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 */
195 static void
printflock(tcp,addr,getlk)196 printflock(tcp, addr, getlk)
197 struct tcb *tcp;
198 long addr;
199 int 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 */
221 static void
printflock64(tcp,addr,getlk)222 printflock64(tcp, addr, getlk)
223 struct tcb *tcp;
224 long addr;
225 int 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
245 static char *
sprintflags(xlat,flags)246 sprintflags(xlat, flags)
247 const struct xlat *xlat;
248 int 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
269 int
sys_fcntl(tcp)270 sys_fcntl(tcp)
271 struct 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 printflags(fdflags, tcp->u_arg[2], "FD_???");
282 break;
283 case F_SETOWN: case F_DUPFD:
284 tprintf(", %ld", tcp->u_arg[2]);
285 break;
286 case F_SETFL:
287 tprintf(", ");
288 printflags(openmodes, tcp->u_arg[2] + 1, "O_???");
289 break;
290 case F_SETLK: case F_SETLKW:
291 #ifdef F_FREESP
292 case F_FREESP:
293 #endif
294 tprintf(", ");
295 printflock(tcp, tcp->u_arg[2], 0);
296 break;
297 #if _LFS64_LARGEFILE
298 #ifdef F_FREESP64
299 case F_FREESP64:
300 #endif
301 /* Linux glibc defines SETLK64 as SETLK,
302 even though the kernel has different values - as does Solaris. */
303 #if defined(F_SETLK64) && F_SETLK64+0!=F_SETLK
304 case F_SETLK64:
305 #endif
306 #if defined(F_SETLKW64) && F_SETLKW64+0!=F_SETLKW
307 case F_SETLKW64:
308 #endif
309 tprintf(", ");
310 printflock64(tcp, tcp->u_arg[2], 0);
311 break;
312 #endif
313 }
314 }
315 else {
316 switch (tcp->u_arg[1]) {
317 case F_DUPFD:
318 case F_SETFD: case F_SETFL:
319 case F_SETLK: case F_SETLKW:
320 case F_SETOWN: case F_GETOWN:
321 break;
322 case F_GETFD:
323 if (tcp->u_rval == 0)
324 return 0;
325 tcp->auxstr = sprintflags(fdflags, tcp->u_rval);
326 return RVAL_HEX|RVAL_STR;
327 case F_GETFL:
328 tcp->auxstr = sprintflags(openmodes, tcp->u_rval + 1);
329 return RVAL_HEX|RVAL_STR;
330 case F_GETLK:
331 tprintf(", ");
332 printflock(tcp, tcp->u_arg[2], 1);
333 break;
334 #if _LFS64_LARGEFILE
335 #if defined(F_GETLK64) && F_GETLK64+0!=F_GETLK
336 case F_GETLK64:
337 #endif
338 tprintf(", ");
339 printflock64(tcp, tcp->u_arg[2], 1);
340 break;
341 #endif
342 default:
343 tprintf(", %#lx", tcp->u_arg[2]);
344 break;
345 }
346 }
347 return 0;
348 }
349
350 #ifdef LOCK_SH
351
352 int
sys_flock(tcp)353 sys_flock(tcp)
354 struct tcb *tcp;
355 {
356 if (entering(tcp)) {
357 tprintf("%ld, ", tcp->u_arg[0]);
358 printflags(flockcmds, tcp->u_arg[1], "LOCK_???");
359 }
360 return 0;
361 }
362 #endif /* LOCK_SH */
363
364 int
sys_close(tcp)365 sys_close(tcp)
366 struct tcb *tcp;
367 {
368 if (entering(tcp)) {
369 tprintf("%ld", tcp->u_arg[0]);
370 }
371 return 0;
372 }
373
374 int
sys_dup(tcp)375 sys_dup(tcp)
376 struct tcb *tcp;
377 {
378 if (entering(tcp)) {
379 tprintf("%ld", tcp->u_arg[0]);
380 }
381 return 0;
382 }
383
384 int
sys_dup2(tcp)385 sys_dup2(tcp)
386 struct tcb *tcp;
387 {
388 if (entering(tcp)) {
389 tprintf("%ld, %ld", tcp->u_arg[0], tcp->u_arg[1]);
390 }
391 return 0;
392 }
393
394 int
sys_getdtablesize(tcp)395 sys_getdtablesize(tcp)
396 struct tcb *tcp;
397 {
398 return 0;
399 }
400
401 static int
decode_select(tcp,args,bitness)402 decode_select(tcp, args, bitness)
403 struct tcb *tcp;
404 long *args;
405 int bitness;
406 {
407 int i, j, nfds;
408 unsigned int fdsize = ((((args[0] + 7) / 8) + sizeof(long) - 1)
409 & -sizeof(long));
410 fd_set *fds;
411 struct timeval tv;
412 #ifdef ALPHA
413 struct timeval32 {
414 unsigned tv_sec;
415 unsigned tv_usec;
416 } *tv32;
417 #endif
418 static char outstr[1024];
419 char *sep;
420 long arg;
421
422 if (entering(tcp)) {
423 fds = (fd_set *) malloc(fdsize);
424 if (fds == NULL)
425 fprintf(stderr, "out of memory\n");
426 nfds = args[0];
427 tprintf("%d", nfds);
428 for (i = 0; i < 3; i++) {
429 arg = args[i+1];
430 if (arg == 0) {
431 tprintf(", NULL");
432 continue;
433 }
434 if (fds == NULL || !verbose(tcp)) {
435 tprintf(", %#lx", arg);
436 continue;
437 }
438 if (umoven(tcp, arg, fdsize, (char *) fds) < 0) {
439 tprintf(", [?]");
440 continue;
441 }
442 tprintf(", [");
443 for (j = 0, sep = ""; j < nfds; j++) {
444 if (FD_ISSET(j, fds)) {
445 tprintf("%s%u", sep, j);
446 sep = " ";
447 }
448 }
449 tprintf("]");
450 }
451 free(fds);
452 if (!args[4])
453 tprintf(", NULL");
454 else if (!verbose(tcp))
455 tprintf(", %#lx", args[4]);
456 else if (umove(tcp, args[4], &tv) < 0)
457 tprintf(", {...}");
458 else {
459 #ifdef ALPHA
460 if (bitness) {
461 tv32=(struct timeval32*)&tv;
462 tprintf(", {%u, %u}", tv32->tv_sec, tv32->tv_usec);
463 } else
464 #endif
465 tprintf(", {%lu, %lu}",
466 (long) tv.tv_sec, (long) tv.tv_usec);
467 }
468 }
469 else
470 {
471 unsigned int cumlen = 0;
472 char *sep = "";
473
474 if (syserror(tcp))
475 return 0;
476
477 if ((nfds = tcp->u_rval) == 0) {
478 tcp->auxstr = "Timeout";
479 return RVAL_STR;
480 }
481
482 fds = (fd_set *) malloc(fdsize);
483 if (fds == NULL)
484 fprintf(stderr, "out of memory\n");
485
486 outstr[0] = '\0';
487 for (i = 0; i < 3; i++) {
488 int first = 1;
489 char str[20];
490
491 tcp->auxstr = outstr;
492 arg = args[i+1];
493 if (fds == NULL || !arg ||
494 umoven(tcp, arg, fdsize, (char *) fds) < 0)
495 continue;
496 for (j = 0; j < args[0]; j++) {
497 if (FD_ISSET(j, fds)) {
498 if (first) {
499 sprintf(str, "%s%s [%u", sep,
500 i == 0 ? "in" :
501 i == 1 ? "out" :
502 "except", j);
503 first = 0;
504 sep = ", ";
505 }
506 else
507 sprintf(str, " %u", j);
508 cumlen += strlen(str);
509 if (cumlen < sizeof(outstr))
510 strcat(outstr, str);
511 nfds--;
512 }
513 }
514 if (cumlen)
515 strcat(outstr, "]");
516 if (nfds == 0)
517 break;
518 }
519 free(fds);
520 #ifdef LINUX
521 /* This contains no useful information on SunOS. */
522 if (args[4]) {
523 char str[64];
524
525 if (umove(tcp, args[4], &tv) >= 0) {
526 #ifdef ALPHA
527 if (bitness) {
528 tv32=(struct timeval32*)&tv;
529 sprintf(str, "%sleft {%u, %u}", sep,
530 tv32->tv_sec, tv32->tv_usec);
531 } else
532 #endif
533 sprintf(str, "%sleft {%lu, %lu}", sep,
534 (long) tv.tv_sec, (long) tv.tv_usec);
535
536 if ((cumlen += strlen(str)) < sizeof(outstr))
537 strcat(outstr, str);
538 }
539 }
540 #endif /* LINUX */
541 return RVAL_STR;
542 }
543 return 0;
544 }
545
546 #ifdef LINUX
547
548 int
sys_oldselect(tcp)549 sys_oldselect(tcp)
550 struct tcb *tcp;
551 {
552 long args[5];
553
554 if (umoven(tcp, tcp->u_arg[0], sizeof args, (char *) args) < 0) {
555 tprintf("[...]");
556 return 0;
557 }
558 return decode_select(tcp, args, 0);
559 }
560
561 #ifdef ALPHA
562 int
sys_osf_select(tcp)563 sys_osf_select(tcp)
564 struct tcb *tcp;
565 {
566 long *args = tcp->u_arg;
567 return decode_select(tcp, args, 1);
568 }
569 #endif
570
571 static struct xlat epollctls[] = {
572 #ifdef EPOLL_CTL_ADD
573 { EPOLL_CTL_ADD, "EPOLL_CTL_ADD" },
574 #endif
575 #ifdef EPOLL_CTL_MOD
576 { EPOLL_CTL_MOD, "EPOLL_CTL_MOD" },
577 #endif
578 #ifdef EPOLL_CTL_DEL
579 { EPOLL_CTL_DEL, "EPOLL_CTL_DEL" },
580 #endif
581 { 0, NULL }
582 };
583
584 static struct xlat epollevents[] = {
585 #ifdef EPOLLIN
586 { EPOLLIN, "EPOLLIN" },
587 #endif
588 #ifdef EPOLLPRI
589 { EPOLLPRI, "EPOLLPRI" },
590 #endif
591 #ifdef EPOLLOUT
592 { EPOLLOUT, "EPOLLOUT" },
593 #endif
594 #ifdef EPOLLRDNORM
595 { EPOLLRDNORM, "EPOLLRDNORM" },
596 #endif
597 #ifdef EPOLLRDBAND
598 { EPOLLRDBAND, "EPOLLRDBAND" },
599 #endif
600 #ifdef EPOLLWRNORM
601 { EPOLLWRNORM, "EPOLLWRNORM" },
602 #endif
603 #ifdef EPOLLWRBAND
604 { EPOLLWRBAND, "EPOLLWRBAND" },
605 #endif
606 #ifdef EPOLLMSG
607 { EPOLLMSG, "EPOLLMSG" },
608 #endif
609 #ifdef EPOLLERR
610 { EPOLLERR, "EPOLLERR" },
611 #endif
612 #ifdef EPOLLHUP
613 { EPOLLHUP, "EPOLLHUP" },
614 #endif
615 #ifdef EPOLLONESHOT
616 { EPOLLONESHOT, "EPOLLONESHOT" },
617 #endif
618 #ifdef EPOLLET
619 { EPOLLET, "EPOLLET" },
620 #endif
621 { 0, NULL }
622 };
623
624 int
sys_epoll_create(tcp)625 sys_epoll_create(tcp)
626 struct tcb *tcp;
627 {
628 if (entering(tcp))
629 tprintf("%ld", tcp->u_arg[0]);
630 return 0;
631 }
632
633 #ifdef HAVE_SYS_EPOLL_H
634 static void
print_epoll_event(ev)635 print_epoll_event(ev)
636 struct epoll_event *ev;
637 {
638 tprintf("{");
639 printflags(epollevents, ev->events, "EPOLL???");
640 /* We cannot know what format the program uses, so print u32 and u64
641 which will cover every value. */
642 tprintf(", {u32=%" PRIu32 ", u64=%" PRIu64 "}}",
643 ev->data.u32, ev->data.u64);
644 }
645 #endif
646
647 int
sys_epoll_ctl(tcp)648 sys_epoll_ctl(tcp)
649 struct tcb *tcp;
650 {
651 if (entering(tcp)) {
652 tprintf("%ld, ", tcp->u_arg[0]);
653 printxval(epollctls, tcp->u_arg[1], "EPOLL_CTL_???");
654 tprintf(", %ld, ", tcp->u_arg[2]);
655 if (tcp->u_arg[3] == 0)
656 tprintf("NULL");
657 else {
658 #ifdef HAVE_SYS_EPOLL_H
659 struct epoll_event ev;
660 if (umove(tcp, tcp->u_arg[3], &ev) == 0)
661 print_epoll_event(&ev);
662 else
663 #endif
664 tprintf("{...}");
665 }
666 }
667 return 0;
668 }
669
670 int
sys_epoll_wait(tcp)671 sys_epoll_wait(tcp)
672 struct tcb *tcp;
673 {
674 if (entering(tcp))
675 tprintf("%ld, ", tcp->u_arg[0]);
676 else {
677 if (syserror(tcp))
678 tprintf("%lx", tcp->u_arg[1]);
679 else if (tcp->u_rval == 0)
680 tprintf("{}");
681 else {
682 #ifdef HAVE_SYS_EPOLL_H
683 struct epoll_event ev, *start, *cur, *end;
684 int failed = 0;
685
686 tprintf("{");
687 start = (struct epoll_event *) tcp->u_arg[1];
688 end = start + tcp->u_rval;
689 for (cur = start; cur < end; ++cur) {
690 if (cur > start)
691 tprintf(", ");
692 if (umove(tcp, (long) cur, &ev) == 0)
693 print_epoll_event(&ev);
694 else {
695 tprintf("?");
696 failed = 1;
697 break;
698 }
699 }
700 tprintf("}");
701 if (failed)
702 tprintf(" %#lx", (long) start);
703 #else
704 tprintf("{...}");
705 #endif
706 }
707 tprintf(", %ld, %ld", tcp->u_arg[2], tcp->u_arg[3]);
708 }
709 return 0;
710 }
711
712 int
sys_io_setup(tcp)713 sys_io_setup(tcp)
714 struct tcb *tcp;
715 {
716 if (entering(tcp))
717 tprintf("%ld, ", tcp->u_arg[0]);
718 else {
719 if (syserror(tcp))
720 tprintf("0x%0lx", tcp->u_arg[1]);
721 else {
722 unsigned long user_id;
723 if (umove(tcp, tcp->u_arg[1], &user_id) == 0)
724 tprintf("{%lu}", user_id);
725 else
726 tprintf("{...}");
727 }
728 }
729 return 0;
730 }
731
732 int
sys_io_destroy(tcp)733 sys_io_destroy(tcp)
734 struct tcb *tcp;
735 {
736 if (entering(tcp))
737 tprintf("%lu", tcp->u_arg[0]);
738 return 0;
739 }
740
741 int
sys_io_submit(tcp)742 sys_io_submit(tcp)
743 struct tcb *tcp;
744 {
745 long nr;
746 if (entering(tcp)) {
747 tprintf("%lu, %ld, ", tcp->u_arg[0], tcp->u_arg[1]);
748 nr = tcp->u_arg[1];
749 /* and if nr is negative? */
750 if (nr == 0)
751 tprintf("{}");
752 else {
753 #ifdef HAVE_LIBAIO_H
754 long i;
755 struct iocb *iocbp, **iocbs = (void *)tcp->u_arg[2];
756
757 for (i = 0; i < nr; i++, iocbs++) {
758 struct iocb iocb;
759 if (i == 0)
760 tprintf("{");
761 else
762 tprintf(", ");
763
764 if (umove(tcp, (unsigned long)iocbs, &iocbp) ||
765 umove(tcp, (unsigned long)iocbp, &iocb)) {
766 tprintf("{...}");
767 continue;
768 }
769 tprintf("{%p, %u, %hu, %hu, %d}",
770 iocb.data, iocb.key,
771 iocb.aio_lio_opcode,
772 iocb.aio_reqprio, iocb.aio_fildes);
773 }
774 if (i)
775 tprintf("}");
776 #else
777 tprintf("{...}");
778 #endif
779 }
780 }
781 return 0;
782 }
783
784 int
sys_io_cancel(tcp)785 sys_io_cancel(tcp)
786 struct tcb *tcp;
787 {
788 if (entering(tcp)) {
789 #ifdef HAVE_LIBAIO_H
790 struct iocb iocb;
791 #endif
792 tprintf("%lu, ", tcp->u_arg[0]);
793 #ifdef HAVE_LIBAIO_H
794 if (umove(tcp, tcp->u_arg[1], &iocb) == 0) {
795 tprintf("{%p, %u, %hu, %hu, %d}, ",
796 iocb.data, iocb.key,
797 iocb.aio_lio_opcode,
798 iocb.aio_reqprio, iocb.aio_fildes);
799 } else
800 #endif
801 tprintf("{...}, ");
802 } else {
803 if (tcp->u_rval < 0)
804 tprintf("{...}");
805 else {
806 #ifdef HAVE_LIBAIO_H
807 struct io_event event;
808 if (umove(tcp, tcp->u_arg[2], &event) == 0)
809 tprintf("{%p, %p, %ld, %ld}",
810 event.data, event.obj,
811 event.res, event.res2);
812 else
813 #endif
814 tprintf("{...}");
815 }
816 }
817 return 0;
818 }
819
820 int
sys_io_getevents(tcp)821 sys_io_getevents(tcp)
822 struct tcb *tcp;
823 {
824 if (entering(tcp)) {
825 tprintf("%ld, %ld, %ld, ", tcp->u_arg[0], tcp->u_arg[1],
826 tcp->u_arg[2]);
827 } else {
828 if (tcp->u_rval == 0) {
829 tprintf("{}");
830 } else {
831 #ifdef HAVE_LIBAIO_H
832 struct io_event *events = (void *)tcp->u_arg[3];
833 long i, nr = tcp->u_rval;
834
835 for (i = 0; i < nr; i++, events++) {
836 struct io_event event;
837
838 if (i == 0)
839 tprintf("{");
840 else
841 tprintf(", ");
842
843 if (umove(tcp, (unsigned long)events, &event) != 0) {
844 tprintf("{...}");
845 continue;
846 }
847 tprintf("{%p, %p, %ld, %ld}", event.data,
848 event.obj, event.res, event.res2);
849 }
850 tprintf("}, ");
851 #else
852 tprintf("{...}");
853 #endif
854 }
855
856 if (tcp->u_arg[4] == 0)
857 tprintf("NULL");
858 else {
859 struct timespec to;
860 if (umove(tcp, tcp->u_arg[4], &to) == 0)
861 tprintf("{%lu, %lu}", to.tv_sec, to.tv_nsec);
862 else
863 tprintf("{...}");
864 }
865 }
866 return 0;
867 }
868 #endif /* LINUX */
869
870 int
sys_select(tcp)871 sys_select(tcp)
872 struct tcb *tcp;
873 {
874 long *args = tcp->u_arg;
875 return decode_select(tcp, args, 0);
876 }
877