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
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 #ifdef F_SETLEASE
152 { F_SETLEASE, "F_SETLEASE" },
153 #endif
154 #ifdef F_GETLEASE
155 { F_GETLEASE, "F_GETLEASE" },
156 #endif
157 #ifdef F_NOTIFY
158 { F_NOTIFY, "F_NOTIFY" },
159 #endif
160 #ifdef F_DUPFD_CLOEXEC
161 { F_DUPFD_CLOEXEC,"F_DUPFD_CLOEXEC"},
162 #endif
163 { 0, NULL },
164 };
165
166 static const struct xlat fdflags[] = {
167 #ifdef FD_CLOEXEC
168 { FD_CLOEXEC, "FD_CLOEXEC" },
169 #endif
170 { 0, NULL },
171 };
172
173 #ifdef LOCK_SH
174
175 static const struct xlat flockcmds[] = {
176 { LOCK_SH, "LOCK_SH" },
177 { LOCK_EX, "LOCK_EX" },
178 { LOCK_NB, "LOCK_NB" },
179 { LOCK_UN, "LOCK_UN" },
180 { 0, NULL },
181 };
182
183 #endif /* LOCK_SH */
184
185 static const struct xlat lockfcmds[] = {
186 { F_RDLCK, "F_RDLCK" },
187 { F_WRLCK, "F_WRLCK" },
188 { F_UNLCK, "F_UNLCK" },
189 #ifdef F_EXLCK
190 { F_EXLCK, "F_EXLCK" },
191 #endif
192 #ifdef F_SHLCK
193 { F_SHLCK, "F_SHLCK" },
194 #endif
195 { 0, NULL },
196 };
197
198 #ifdef F_NOTIFY
199 static const struct xlat notifyflags[] = {
200 #ifdef DN_ACCESS
201 { DN_ACCESS, "DN_ACCESS" },
202 #endif
203 #ifdef DN_MODIFY
204 { DN_MODIFY, "DN_MODIFY" },
205 #endif
206 #ifdef DN_CREATE
207 { DN_CREATE, "DN_CREATE" },
208 #endif
209 #ifdef DN_DELETE
210 { DN_DELETE, "DN_DELETE" },
211 #endif
212 #ifdef DN_RENAME
213 { DN_RENAME, "DN_RENAME" },
214 #endif
215 #ifdef DN_ATTRIB
216 { DN_ATTRIB, "DN_ATTRIB" },
217 #endif
218 #ifdef DN_MULTISHOT
219 { DN_MULTISHOT, "DN_MULTISHOT" },
220 #endif
221 { 0, NULL },
222 };
223 #endif
224
225 static const struct xlat whence[] = {
226 { SEEK_SET, "SEEK_SET" },
227 { SEEK_CUR, "SEEK_CUR" },
228 { SEEK_END, "SEEK_END" },
229 { 0, NULL },
230 };
231
232 #ifndef HAVE_LONG_LONG_OFF_T
233 /* fcntl/lockf */
234 static void
printflock(struct tcb * tcp,long addr,int getlk)235 printflock(struct tcb *tcp, long addr, int getlk)
236 {
237 struct flock fl;
238
239 #if SUPPORTED_PERSONALITIES > 1
240 if (personality_wordsize[current_personality] != sizeof(fl.l_start)) {
241 if (personality_wordsize[current_personality] == 4) {
242 /* 32-bit x86 app on x86_64 and similar cases */
243 struct {
244 short int l_type;
245 short int l_whence;
246 int32_t l_start; /* off_t */
247 int32_t l_len; /* off_t */
248 int32_t l_pid; /* pid_t */
249 } fl32;
250 if (umove(tcp, addr, &fl32) < 0) {
251 tprintf("{...}");
252 return;
253 }
254 fl.l_type = fl32.l_type;
255 fl.l_whence = fl32.l_whence;
256 fl.l_start = fl32.l_start;
257 fl.l_len = fl32.l_len;
258 fl.l_pid = fl32.l_pid;
259 } else {
260 /* let people know we have a problem here */
261 tprintf("{ <decode error: unsupported wordsize %d> }",
262 personality_wordsize[current_personality]);
263 return;
264 }
265 } else
266 #endif
267 {
268 if (umove(tcp, addr, &fl) < 0) {
269 tprintf("{...}");
270 return;
271 }
272 }
273 tprintf("{type=");
274 printxval(lockfcmds, fl.l_type, "F_???");
275 tprintf(", whence=");
276 printxval(whence, fl.l_whence, "SEEK_???");
277 tprintf(", start=%ld, len=%ld", fl.l_start, fl.l_len);
278 if (getlk)
279 tprintf(", pid=%lu}", (unsigned long) fl.l_pid);
280 else
281 tprintf("}");
282 }
283 #endif
284
285 #if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
286 /* fcntl/lockf */
287 static void
printflock64(struct tcb * tcp,long addr,int getlk)288 printflock64(struct tcb *tcp, long addr, int getlk)
289 {
290 struct flock64 fl;
291
292 if (umove(tcp, addr, &fl) < 0) {
293 tprintf("{...}");
294 return;
295 }
296 tprintf("{type=");
297 printxval(lockfcmds, fl.l_type, "F_???");
298 tprintf(", whence=");
299 printxval(whence, fl.l_whence, "SEEK_???");
300 tprintf(", start=%lld, len=%lld", (long long) fl.l_start, (long long) fl.l_len);
301 if (getlk)
302 tprintf(", pid=%lu}", (unsigned long) fl.l_pid);
303 else
304 tprintf("}");
305 }
306 #endif
307
308 int
sys_fcntl(struct tcb * tcp)309 sys_fcntl(struct tcb *tcp)
310 {
311 if (entering(tcp)) {
312 printfd(tcp, tcp->u_arg[0]);
313 tprintf(", ");
314 printxval(fcntlcmds, tcp->u_arg[1], "F_???");
315 switch (tcp->u_arg[1]) {
316 case F_SETFD:
317 tprintf(", ");
318 printflags(fdflags, tcp->u_arg[2], "FD_???");
319 break;
320 case F_SETOWN: case F_DUPFD:
321 #ifdef F_DUPFD_CLOEXEC
322 case F_DUPFD_CLOEXEC:
323 #endif
324 tprintf(", %ld", tcp->u_arg[2]);
325 break;
326 case F_SETFL:
327 tprintf(", ");
328 tprint_open_modes(tcp->u_arg[2]);
329 break;
330 case F_SETLK: case F_SETLKW:
331 #ifdef F_FREESP
332 case F_FREESP:
333 #endif
334 tprintf(", ");
335 printflock(tcp, tcp->u_arg[2], 0);
336 break;
337 #if _LFS64_LARGEFILE
338 #ifdef F_FREESP64
339 case F_FREESP64:
340 #endif
341 /* Linux glibc defines SETLK64 as SETLK,
342 even though the kernel has different values - as does Solaris. */
343 #if defined(F_SETLK64) && F_SETLK64 + 0 != F_SETLK
344 case F_SETLK64:
345 #endif
346 #if defined(F_SETLKW64) && F_SETLKW64 + 0 != F_SETLKW
347 case F_SETLKW64:
348 #endif
349 tprintf(", ");
350 printflock64(tcp, tcp->u_arg[2], 0);
351 break;
352 #endif
353 #ifdef F_NOTIFY
354 case F_NOTIFY:
355 tprintf(", ");
356 printflags(notifyflags, tcp->u_arg[2], "DN_???");
357 break;
358 #endif
359 #ifdef F_SETLEASE
360 case F_SETLEASE:
361 tprintf(", ");
362 printxval(lockfcmds, tcp->u_arg[2], "F_???");
363 break;
364 #endif
365 }
366 }
367 else {
368 switch (tcp->u_arg[1]) {
369 case F_DUPFD:
370 #ifdef F_DUPFD_CLOEXEC
371 case F_DUPFD_CLOEXEC:
372 #endif
373 case F_SETFD: case F_SETFL:
374 case F_SETLK: case F_SETLKW:
375 case F_SETOWN: case F_GETOWN:
376 #ifdef F_NOTIFY
377 case F_NOTIFY:
378 #endif
379 #ifdef F_SETLEASE
380 case F_SETLEASE:
381 #endif
382 break;
383 case F_GETFD:
384 if (syserror(tcp) || tcp->u_rval == 0)
385 return 0;
386 tcp->auxstr = sprintflags("flags ", fdflags, tcp->u_rval);
387 return RVAL_HEX|RVAL_STR;
388 case F_GETFL:
389 if (syserror(tcp))
390 return 0;
391 tcp->auxstr = sprint_open_modes(tcp->u_rval);
392 return RVAL_HEX|RVAL_STR;
393 case F_GETLK:
394 tprintf(", ");
395 printflock(tcp, tcp->u_arg[2], 1);
396 break;
397 #if _LFS64_LARGEFILE
398 #if defined(F_GETLK64) && F_GETLK64+0!=F_GETLK
399 case F_GETLK64:
400 #endif
401 tprintf(", ");
402 printflock64(tcp, tcp->u_arg[2], 1);
403 break;
404 #endif
405 #ifdef F_GETLEASE
406 case F_GETLEASE:
407 if (syserror(tcp))
408 return 0;
409 tcp->auxstr = xlookup(lockfcmds, tcp->u_rval);
410 return RVAL_HEX|RVAL_STR;
411 #endif
412 default:
413 tprintf(", %#lx", tcp->u_arg[2]);
414 break;
415 }
416 }
417 return 0;
418 }
419
420 #ifdef LOCK_SH
421
422 int
sys_flock(struct tcb * tcp)423 sys_flock(struct tcb *tcp)
424 {
425 if (entering(tcp)) {
426 printfd(tcp, tcp->u_arg[0]);
427 tprintf(", ");
428 printflags(flockcmds, tcp->u_arg[1], "LOCK_???");
429 }
430 return 0;
431 }
432 #endif /* LOCK_SH */
433
434 int
sys_close(struct tcb * tcp)435 sys_close(struct tcb *tcp)
436 {
437 if (entering(tcp)) {
438 printfd(tcp, tcp->u_arg[0]);
439 }
440 return 0;
441 }
442
443 int
sys_dup(struct tcb * tcp)444 sys_dup(struct tcb *tcp)
445 {
446 if (entering(tcp)) {
447 printfd(tcp, tcp->u_arg[0]);
448 }
449 return 0;
450 }
451
452 static int
do_dup2(struct tcb * tcp,int flags_arg)453 do_dup2(struct tcb *tcp, int flags_arg)
454 {
455 if (entering(tcp)) {
456 printfd(tcp, tcp->u_arg[0]);
457 tprintf(", ");
458 printfd(tcp, tcp->u_arg[1]);
459 if (flags_arg >= 0) {
460 tprintf(", ");
461 printflags(open_mode_flags, tcp->u_arg[flags_arg], "O_???");
462 }
463 }
464 return 0;
465 }
466
467 int
sys_dup2(struct tcb * tcp)468 sys_dup2(struct tcb *tcp)
469 {
470 return do_dup2(tcp, -1);
471 }
472
473 #ifdef LINUX
474 int
sys_dup3(struct tcb * tcp)475 sys_dup3(struct tcb *tcp)
476 {
477 return do_dup2(tcp, 2);
478 }
479 #endif
480
481 #if defined(ALPHA) || defined(FREEBSD) || defined(SUNOS4)
482 int
sys_getdtablesize(struct tcb * tcp)483 sys_getdtablesize(struct tcb *tcp)
484 {
485 return 0;
486 }
487 #endif /* ALPHA || FREEBSD || SUNOS4 */
488
489 static int
decode_select(struct tcb * tcp,long * args,enum bitness_t bitness)490 decode_select(struct tcb *tcp, long *args, enum bitness_t bitness)
491 {
492 int i, j, nfds;
493 unsigned int fdsize = ((((args[0] + 7) / 8) + sizeof(long) - 1)
494 & -sizeof(long));
495 fd_set *fds;
496 static char outstr[1024];
497 const char *sep;
498 long arg;
499
500 if (entering(tcp)) {
501 fds = (fd_set *) malloc(fdsize);
502 if (fds == NULL)
503 fprintf(stderr, "out of memory\n");
504 nfds = args[0];
505 tprintf("%d", nfds);
506 for (i = 0; i < 3; i++) {
507 arg = args[i+1];
508 if (arg == 0) {
509 tprintf(", NULL");
510 continue;
511 }
512 if (fds == NULL || !verbose(tcp)) {
513 tprintf(", %#lx", arg);
514 continue;
515 }
516 if (umoven(tcp, arg, fdsize, (char *) fds) < 0) {
517 tprintf(", [?]");
518 continue;
519 }
520 tprintf(", [");
521 for (j = 0, sep = ""; j < nfds; j++) {
522 if (FD_ISSET(j, fds)) {
523 tprintf("%s", sep);
524 printfd(tcp, j);
525 sep = " ";
526 }
527 }
528 tprintf("]");
529 }
530 free(fds);
531 tprintf(", ");
532 printtv_bitness(tcp, args[4], bitness, 0);
533 }
534 else
535 {
536 unsigned int cumlen = 0;
537 const char *sep = "";
538
539 if (syserror(tcp))
540 return 0;
541
542 if ((nfds = tcp->u_rval) == 0) {
543 tcp->auxstr = "Timeout";
544 return RVAL_STR;
545 }
546
547 fds = (fd_set *) malloc(fdsize);
548 if (fds == NULL)
549 fprintf(stderr, "out of memory\n");
550
551 outstr[0] = '\0';
552 for (i = 0; i < 3; i++) {
553 int first = 1;
554
555 tcp->auxstr = outstr;
556 arg = args[i+1];
557 if (fds == NULL || !arg ||
558 umoven(tcp, arg, fdsize, (char *) fds) < 0)
559 continue;
560 for (j = 0; j < args[0]; j++) {
561 if (FD_ISSET(j, fds)) {
562 char str[11 + 3 * sizeof(int)];
563
564 if (first) {
565 sprintf(str, "%s%s [%u", sep,
566 i == 0 ? "in" :
567 i == 1 ? "out" :
568 "except", j);
569 first = 0;
570 sep = ", ";
571 }
572 else
573 sprintf(str, " %u", j);
574 cumlen += strlen(str);
575 if (cumlen < sizeof(outstr))
576 strcat(outstr, str);
577 nfds--;
578 }
579 }
580 if (cumlen)
581 strcat(outstr, "]");
582 if (nfds == 0)
583 break;
584 }
585 free(fds);
586 #ifdef LINUX
587 /* This contains no useful information on SunOS. */
588 if (args[4]) {
589 char str[128];
590
591 sprintf(str, "%sleft ", sep);
592 sprinttv(tcp, args[4], bitness, str + strlen(str));
593 if ((cumlen += strlen(str)) < sizeof(outstr))
594 strcat(outstr, str);
595 }
596 #endif /* LINUX */
597 return RVAL_STR;
598 }
599 return 0;
600 }
601
602 #ifdef LINUX
603
604 int
sys_oldselect(struct tcb * tcp)605 sys_oldselect(struct tcb *tcp)
606 {
607 long args[5];
608
609 if (umoven(tcp, tcp->u_arg[0], sizeof args, (char *) args) < 0) {
610 tprintf("[...]");
611 return 0;
612 }
613 return decode_select(tcp, args, BITNESS_CURRENT);
614 }
615
616 #ifdef ALPHA
617 int
sys_osf_select(struct tcb * tcp)618 sys_osf_select(struct tcb *tcp)
619 {
620 long *args = tcp->u_arg;
621 return decode_select(tcp, args, BITNESS_32);
622 }
623 #endif
624
625 static const struct xlat epollctls[] = {
626 #ifdef EPOLL_CTL_ADD
627 { EPOLL_CTL_ADD, "EPOLL_CTL_ADD" },
628 #endif
629 #ifdef EPOLL_CTL_MOD
630 { EPOLL_CTL_MOD, "EPOLL_CTL_MOD" },
631 #endif
632 #ifdef EPOLL_CTL_DEL
633 { EPOLL_CTL_DEL, "EPOLL_CTL_DEL" },
634 #endif
635 { 0, NULL }
636 };
637
638 static const struct xlat epollevents[] = {
639 #ifdef EPOLLIN
640 { EPOLLIN, "EPOLLIN" },
641 #endif
642 #ifdef EPOLLPRI
643 { EPOLLPRI, "EPOLLPRI" },
644 #endif
645 #ifdef EPOLLOUT
646 { EPOLLOUT, "EPOLLOUT" },
647 #endif
648 #ifdef EPOLLRDNORM
649 { EPOLLRDNORM, "EPOLLRDNORM" },
650 #endif
651 #ifdef EPOLLRDBAND
652 { EPOLLRDBAND, "EPOLLRDBAND" },
653 #endif
654 #ifdef EPOLLWRNORM
655 { EPOLLWRNORM, "EPOLLWRNORM" },
656 #endif
657 #ifdef EPOLLWRBAND
658 { EPOLLWRBAND, "EPOLLWRBAND" },
659 #endif
660 #ifdef EPOLLMSG
661 { EPOLLMSG, "EPOLLMSG" },
662 #endif
663 #ifdef EPOLLERR
664 { EPOLLERR, "EPOLLERR" },
665 #endif
666 #ifdef EPOLLHUP
667 { EPOLLHUP, "EPOLLHUP" },
668 #endif
669 #ifdef EPOLLONESHOT
670 { EPOLLONESHOT, "EPOLLONESHOT" },
671 #endif
672 #ifdef EPOLLET
673 { EPOLLET, "EPOLLET" },
674 #endif
675 { 0, NULL }
676 };
677
678 int
sys_epoll_create(struct tcb * tcp)679 sys_epoll_create(struct tcb *tcp)
680 {
681 if (entering(tcp))
682 tprintf("%ld", tcp->u_arg[0]);
683 return 0;
684 }
685
686 int
sys_epoll_create1(struct tcb * tcp)687 sys_epoll_create1(struct tcb *tcp)
688 {
689 if (entering(tcp))
690 printflags(open_mode_flags, tcp->u_arg[0], "O_???");
691 return 0;
692 }
693
694 #ifdef HAVE_SYS_EPOLL_H
695 static void
print_epoll_event(struct epoll_event * ev)696 print_epoll_event(struct epoll_event *ev)
697 {
698 tprintf("{");
699 printflags(epollevents, ev->events, "EPOLL???");
700 /* We cannot know what format the program uses, so print u32 and u64
701 which will cover every value. */
702 tprintf(", {u32=%" PRIu32 ", u64=%" PRIu64 "}}",
703 ev->data.u32, ev->data.u64);
704 }
705 #endif
706
707 int
sys_epoll_ctl(struct tcb * tcp)708 sys_epoll_ctl(struct tcb *tcp)
709 {
710 if (entering(tcp)) {
711 printfd(tcp, tcp->u_arg[0]);
712 tprintf(", ");
713 printxval(epollctls, tcp->u_arg[1], "EPOLL_CTL_???");
714 tprintf(", ");
715 printfd(tcp, tcp->u_arg[2]);
716 tprintf(", ");
717 if (tcp->u_arg[3] == 0)
718 tprintf("NULL");
719 else {
720 #ifdef HAVE_SYS_EPOLL_H
721 struct epoll_event ev;
722 if (umove(tcp, tcp->u_arg[3], &ev) == 0)
723 print_epoll_event(&ev);
724 else
725 #endif
726 tprintf("{...}");
727 }
728 }
729 return 0;
730 }
731
732 static void
epoll_wait_common(struct tcb * tcp)733 epoll_wait_common(struct tcb *tcp)
734 {
735 if (entering(tcp)) {
736 printfd(tcp, tcp->u_arg[0]);
737 tprintf(", ");
738 } else {
739 if (syserror(tcp))
740 tprintf("%lx", tcp->u_arg[1]);
741 else if (tcp->u_rval == 0)
742 tprintf("{}");
743 else {
744 #ifdef HAVE_SYS_EPOLL_H
745 struct epoll_event ev, *start, *cur, *end;
746 int failed = 0;
747
748 tprintf("{");
749 start = (struct epoll_event *) tcp->u_arg[1];
750 end = start + tcp->u_rval;
751 for (cur = start; cur < end; ++cur) {
752 if (cur > start)
753 tprintf(", ");
754 if (umove(tcp, (long) cur, &ev) == 0)
755 print_epoll_event(&ev);
756 else {
757 tprintf("?");
758 failed = 1;
759 break;
760 }
761 }
762 tprintf("}");
763 if (failed)
764 tprintf(" %#lx", (long) start);
765 #else
766 tprintf("{...}");
767 #endif
768 }
769 tprintf(", %ld, %ld", tcp->u_arg[2], tcp->u_arg[3]);
770 }
771 }
772
773 int
sys_epoll_wait(struct tcb * tcp)774 sys_epoll_wait(struct tcb *tcp)
775 {
776 epoll_wait_common(tcp);
777 return 0;
778 }
779
780 int
sys_epoll_pwait(struct tcb * tcp)781 sys_epoll_pwait(struct tcb *tcp)
782 {
783 epoll_wait_common(tcp);
784 if (exiting(tcp)) {
785 tprintf(", ");
786 print_sigset(tcp, tcp->u_arg[4], 0);
787 }
788 return 0;
789 }
790
791 int
sys_io_setup(struct tcb * tcp)792 sys_io_setup(struct tcb *tcp)
793 {
794 if (entering(tcp))
795 tprintf("%ld, ", tcp->u_arg[0]);
796 else {
797 if (syserror(tcp))
798 tprintf("0x%0lx", tcp->u_arg[1]);
799 else {
800 unsigned long user_id;
801 if (umove(tcp, tcp->u_arg[1], &user_id) == 0)
802 tprintf("{%lu}", user_id);
803 else
804 tprintf("{...}");
805 }
806 }
807 return 0;
808 }
809
810 int
sys_io_destroy(struct tcb * tcp)811 sys_io_destroy(struct tcb *tcp)
812 {
813 if (entering(tcp))
814 tprintf("%lu", tcp->u_arg[0]);
815 return 0;
816 }
817
818 int
sys_io_submit(struct tcb * tcp)819 sys_io_submit(struct tcb *tcp)
820 {
821 long nr;
822 if (entering(tcp)) {
823 tprintf("%lu, %ld, ", tcp->u_arg[0], tcp->u_arg[1]);
824 nr = tcp->u_arg[1];
825 /* and if nr is negative? */
826 if (nr == 0)
827 tprintf("{}");
828 else {
829 #ifdef HAVE_LIBAIO_H
830 long i;
831 struct iocb *iocbp, **iocbs = (void *)tcp->u_arg[2];
832
833 for (i = 0; i < nr; i++, iocbs++) {
834 struct iocb iocb;
835 if (i == 0)
836 tprintf("{");
837 else
838 tprintf(", ");
839
840 if (umove(tcp, (unsigned long)iocbs, &iocbp) ||
841 umove(tcp, (unsigned long)iocbp, &iocb)) {
842 tprintf("{...}");
843 continue;
844 }
845 tprintf("{%p, %u, %hu, %hu, %d}",
846 iocb.data, iocb.key,
847 iocb.aio_lio_opcode,
848 iocb.aio_reqprio, iocb.aio_fildes);
849 }
850 if (i)
851 tprintf("}");
852 #else
853 tprintf("{...}");
854 #endif
855 }
856 }
857 return 0;
858 }
859
860 int
sys_io_cancel(struct tcb * tcp)861 sys_io_cancel(struct tcb *tcp)
862 {
863 if (entering(tcp)) {
864 #ifdef HAVE_LIBAIO_H
865 struct iocb iocb;
866 #endif
867 tprintf("%lu, ", tcp->u_arg[0]);
868 #ifdef HAVE_LIBAIO_H
869 if (umove(tcp, tcp->u_arg[1], &iocb) == 0) {
870 tprintf("{%p, %u, %hu, %hu, %d}, ",
871 iocb.data, iocb.key,
872 iocb.aio_lio_opcode,
873 iocb.aio_reqprio, iocb.aio_fildes);
874 } else
875 #endif
876 tprintf("{...}, ");
877 } else {
878 if (tcp->u_rval < 0)
879 tprintf("{...}");
880 else {
881 #ifdef HAVE_LIBAIO_H
882 struct io_event event;
883 if (umove(tcp, tcp->u_arg[2], &event) == 0)
884 tprintf("{%p, %p, %ld, %ld}",
885 event.data, event.obj,
886 event.res, event.res2);
887 else
888 #endif
889 tprintf("{...}");
890 }
891 }
892 return 0;
893 }
894
895 int
sys_io_getevents(struct tcb * tcp)896 sys_io_getevents(struct tcb *tcp)
897 {
898 if (entering(tcp)) {
899 tprintf("%ld, %ld, %ld, ", tcp->u_arg[0], tcp->u_arg[1],
900 tcp->u_arg[2]);
901 } else {
902 if (tcp->u_rval == 0) {
903 tprintf("{}");
904 } else {
905 #ifdef HAVE_LIBAIO_H
906 struct io_event *events = (void *)tcp->u_arg[3];
907 long i, nr = tcp->u_rval;
908
909 for (i = 0; i < nr; i++, events++) {
910 struct io_event event;
911
912 if (i == 0)
913 tprintf("{");
914 else
915 tprintf(", ");
916
917 if (umove(tcp, (unsigned long)events, &event) != 0) {
918 tprintf("{...}");
919 continue;
920 }
921 tprintf("{%p, %p, %ld, %ld}", event.data,
922 event.obj, event.res, event.res2);
923 }
924 tprintf("}, ");
925 #else
926 tprintf("{...}");
927 #endif
928 }
929
930 print_timespec(tcp, tcp->u_arg[4]);
931 }
932 return 0;
933 }
934 #endif /* LINUX */
935
936 int
sys_select(struct tcb * tcp)937 sys_select(struct tcb *tcp)
938 {
939 return decode_select(tcp, tcp->u_arg, BITNESS_CURRENT);
940 }
941
942 #ifdef LINUX
943 int
sys_pselect6(struct tcb * tcp)944 sys_pselect6(struct tcb *tcp)
945 {
946 int rc = decode_select(tcp, tcp->u_arg, BITNESS_CURRENT);
947 if (entering(tcp)) {
948 struct {
949 void *ss;
950 unsigned long len;
951 } data;
952 if (umove(tcp, tcp->u_arg[5], &data) < 0)
953 tprintf(", %#lx", tcp->u_arg[5]);
954 else {
955 tprintf(", {");
956 if (data.len < sizeof(long))
957 tprintf("%#lx", (long)data.ss);
958 else
959 print_sigset(tcp, (long)data.ss, 0);
960 tprintf(", %lu}", data.len);
961 }
962 }
963 return rc;
964 }
965
966 static int
do_eventfd(struct tcb * tcp,int flags_arg)967 do_eventfd(struct tcb *tcp, int flags_arg)
968 {
969 if (entering(tcp)) {
970 tprintf("%lu", tcp->u_arg[0]);
971 if (flags_arg >= 0) {
972 tprintf(", ");
973 printflags(open_mode_flags, tcp->u_arg[flags_arg], "O_???");
974 }
975 }
976 return 0;
977 }
978
979 int
sys_eventfd(struct tcb * tcp)980 sys_eventfd(struct tcb *tcp)
981 {
982 return do_eventfd(tcp, -1);
983 }
984
985 int
sys_eventfd2(struct tcb * tcp)986 sys_eventfd2(struct tcb *tcp)
987 {
988 return do_eventfd(tcp, 1);
989 }
990 #endif
991