1 /* 2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk (at) cs.few.eur.nl> 3 * Copyright (c) 1993 Branko Lankester <branko (at) hacktic.nl> 4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs (at) world.std.com> 5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert (at) 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 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 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 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 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 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 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 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 468 sys_dup2(struct tcb *tcp) 469 { 470 return do_dup2(tcp, -1); 471 } 472 473 #ifdef LINUX 474 int 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 483 sys_getdtablesize(struct tcb *tcp) 484 { 485 return 0; 486 } 487 #endif /* ALPHA || FREEBSD || SUNOS4 */ 488 489 static int 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 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 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 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 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 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 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 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 774 sys_epoll_wait(struct tcb *tcp) 775 { 776 epoll_wait_common(tcp); 777 return 0; 778 } 779 780 int 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 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 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 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 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 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 937 sys_select(struct tcb *tcp) 938 { 939 return decode_select(tcp, tcp->u_arg, BITNESS_CURRENT); 940 } 941 942 #ifdef LINUX 943 int 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 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 980 sys_eventfd(struct tcb *tcp) 981 { 982 return do_eventfd(tcp, -1); 983 } 984 985 int 986 sys_eventfd2(struct tcb *tcp) 987 { 988 return do_eventfd(tcp, 1); 989 } 990 #endif 991
