1 /* 2 * Copyright (C) 2005 David Xu <davidxu@freebsd.org>. 3 * Copyright (c) 2003 Daniel Eischen <deischen@freebsd.org>. 4 * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice(s), this list of conditions and the following disclaimer as 12 * the first lines of this file unmodified other than the possible 13 * addition of one or more copyright notices. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice(s), this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 26 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 28 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 /* 35 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. Neither the name of the author nor the names of any co-contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 */ 63 64 #include "namespace.h" 65 #include <sys/types.h> 66 #include <sys/mman.h> 67 #include <sys/param.h> 68 #include <sys/select.h> 69 #include <sys/signalvar.h> 70 #include <sys/socket.h> 71 #include <sys/stat.h> 72 #include <sys/time.h> 73 #include <sys/uio.h> 74 #include <sys/wait.h> 75 #include <aio.h> 76 #include <dirent.h> 77 #include <errno.h> 78 #include <fcntl.h> 79 #include <poll.h> 80 #include <signal.h> 81 #include <stdarg.h> 82 #include <stdio.h> 83 #include <stdlib.h> 84 #include <string.h> 85 #include <termios.h> 86 #include <unistd.h> 87 #include <pthread.h> 88 #include "un-namespace.h" 89 90 #include "thr_private.h" 91 92 extern int __creat(const char *, mode_t); 93 extern int __pselect(int, fd_set *, fd_set *, fd_set *, 94 const struct timespec *, const sigset_t *); 95 extern unsigned __sleep(unsigned int); 96 extern int __system(const char *); 97 extern int __tcdrain(int); 98 extern int __usleep(useconds_t); 99 extern pid_t __wait(int *); 100 extern pid_t __waitpid(pid_t, int *, int); 101 extern int __sys_aio_suspend(const struct aiocb * const[], int, 102 const struct timespec *); 103 extern int __sys_accept(int, struct sockaddr *, socklen_t *); 104 extern int __sys_connect(int, const struct sockaddr *, socklen_t); 105 extern int __sys_fsync(int); 106 extern int __sys_msync(void *, size_t, int); 107 extern int __sys_pselect(int, fd_set *, fd_set *, fd_set *, 108 const struct timespec *, const sigset_t *); 109 extern int __sys_poll(struct pollfd *, unsigned, int); 110 extern ssize_t __sys_recv(int, void *, size_t, int); 111 extern ssize_t __sys_recvfrom(int, void *, size_t, int, struct sockaddr *, socklen_t *); 112 extern ssize_t __sys_recvmsg(int, struct msghdr *, int); 113 extern int __sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 114 extern int __sys_sendfile(int, int, off_t, size_t, struct sf_hdtr *, 115 off_t *, int); 116 extern ssize_t __sys_sendmsg(int, const struct msghdr *, int); 117 extern ssize_t __sys_sendto(int, const void *,size_t, int, const struct sockaddr *, socklen_t); 118 extern ssize_t __sys_readv(int, const struct iovec *, int); 119 extern pid_t __sys_wait4(pid_t, int *, int, struct rusage *); 120 extern ssize_t __sys_writev(int, const struct iovec *, int); 121 122 int ___creat(const char *, mode_t); 123 int ___pselect(int, fd_set *, fd_set *, fd_set *, 124 const struct timespec *, const sigset_t *); 125 unsigned ___sleep(unsigned); 126 int ___system(const char *); 127 int ___tcdrain(int); 128 int ___usleep(useconds_t useconds); 129 pid_t ___wait(int *); 130 pid_t ___waitpid(pid_t, int *, int); 131 int __accept(int, struct sockaddr *, socklen_t *); 132 int __aio_suspend(const struct aiocb * const iocbs[], int, 133 const struct timespec *); 134 int __close(int); 135 int __connect(int, const struct sockaddr *, socklen_t); 136 int __fcntl(int, int,...); 137 #ifdef SYSCALL_COMPAT 138 extern int __fcntl_compat(int, int,...); 139 #endif 140 int __fsync(int); 141 int __msync(void *, size_t, int); 142 int __nanosleep(const struct timespec *, struct timespec *); 143 int __open(const char *, int,...); 144 int __openat(int, const char *, int,...); 145 int __poll(struct pollfd *, unsigned int, int); 146 ssize_t __read(int, void *buf, size_t); 147 ssize_t __readv(int, const struct iovec *, int); 148 ssize_t __recvfrom(int, void *, size_t, int f, struct sockaddr *, socklen_t *); 149 ssize_t __recvmsg(int, struct msghdr *, int); 150 int __select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 151 ssize_t __sendmsg(int, const struct msghdr *, int); 152 ssize_t __sendto(int, const void *, size_t, int, 153 const struct sockaddr *, socklen_t); 154 pid_t __wait3(int *, int, struct rusage *); 155 pid_t __wait4(pid_t, int *, int, struct rusage *); 156 ssize_t __write(int, const void *, size_t); 157 ssize_t __writev(int, const struct iovec *, int); 158 159 __weak_reference(__accept, accept); 160 161 int 162 __accept(int s, struct sockaddr *addr, socklen_t *addrlen) 163 { 164 struct pthread *curthread; 165 int ret; 166 167 curthread = _get_curthread(); 168 _thr_cancel_enter(curthread); 169 ret = __sys_accept(s, addr, addrlen); 170 _thr_cancel_leave(curthread); 171 172 return (ret); 173 } 174 175 __weak_reference(__aio_suspend, aio_suspend); 176 177 int 178 __aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct 179 timespec *timeout) 180 { 181 struct pthread *curthread = _get_curthread(); 182 int ret; 183 184 _thr_cancel_enter(curthread); 185 ret = __sys_aio_suspend(iocbs, niocb, timeout); 186 _thr_cancel_leave(curthread); 187 188 return (ret); 189 } 190 191 __weak_reference(__close, close); 192 193 int 194 __close(int fd) 195 { 196 struct pthread *curthread = _get_curthread(); 197 int ret; 198 199 _thr_cancel_enter(curthread); 200 ret = __sys_close(fd); 201 _thr_cancel_leave(curthread); 202 203 return (ret); 204 } 205 206 __weak_reference(__connect, connect); 207 208 int 209 __connect(int fd, const struct sockaddr *name, socklen_t namelen) 210 { 211 struct pthread *curthread = _get_curthread(); 212 int ret; 213 214 _thr_cancel_enter(curthread); 215 ret = __sys_connect(fd, name, namelen); 216 _thr_cancel_leave(curthread); 217 218 return (ret); 219 } 220 221 __weak_reference(___creat, creat); 222 223 int 224 ___creat(const char *path, mode_t mode) 225 { 226 struct pthread *curthread = _get_curthread(); 227 int ret; 228 229 _thr_cancel_enter(curthread); 230 ret = __creat(path, mode); 231 _thr_cancel_leave(curthread); 232 233 return ret; 234 } 235 236 __weak_reference(__fcntl, fcntl); 237 238 int 239 __fcntl(int fd, int cmd,...) 240 { 241 struct pthread *curthread = _get_curthread(); 242 int ret; 243 va_list ap; 244 245 _thr_cancel_enter(curthread); 246 247 va_start(ap, cmd); 248 switch (cmd) { 249 case F_DUPFD: 250 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 251 break; 252 case F_SETFD: 253 case F_SETFL: 254 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 255 break; 256 case F_GETFD: 257 case F_GETFL: 258 ret = __sys_fcntl(fd, cmd); 259 break; 260 default: 261 #ifdef SYSCALL_COMPAT 262 ret = __fcntl_compat(fd, cmd, va_arg(ap, void *)); 263 #else 264 ret = __sys_fcntl(fd, cmd, va_arg(ap, void *)); 265 #endif 266 } 267 va_end(ap); 268 269 _thr_cancel_leave(curthread); 270 271 return (ret); 272 } 273 274 __weak_reference(__fsync, fsync); 275 276 int 277 __fsync(int fd) 278 { 279 struct pthread *curthread = _get_curthread(); 280 int ret; 281 282 _thr_cancel_enter(curthread); 283 ret = __sys_fsync(fd); 284 _thr_cancel_leave(curthread); 285 286 return (ret); 287 } 288 289 __weak_reference(__msync, msync); 290 291 int 292 __msync(void *addr, size_t len, int flags) 293 { 294 struct pthread *curthread = _get_curthread(); 295 int ret; 296 297 _thr_cancel_enter(curthread); 298 ret = __sys_msync(addr, len, flags); 299 _thr_cancel_leave(curthread); 300 301 return ret; 302 } 303 304 __weak_reference(__nanosleep, nanosleep); 305 306 int 307 __nanosleep(const struct timespec *time_to_sleep, 308 struct timespec *time_remaining) 309 { 310 struct pthread *curthread = _get_curthread(); 311 int ret; 312 313 _thr_cancel_enter(curthread); 314 ret = __sys_nanosleep(time_to_sleep, time_remaining); 315 _thr_cancel_leave(curthread); 316 317 return (ret); 318 } 319 320 __weak_reference(__open, open); 321 322 int 323 __open(const char *path, int flags,...) 324 { 325 struct pthread *curthread = _get_curthread(); 326 int ret; 327 int mode = 0; 328 va_list ap; 329 330 _thr_cancel_enter(curthread); 331 332 /* Check if the file is being created: */ 333 if (flags & O_CREAT) { 334 /* Get the creation mode: */ 335 va_start(ap, flags); 336 mode = va_arg(ap, int); 337 va_end(ap); 338 } 339 340 ret = __sys_open(path, flags, mode); 341 342 _thr_cancel_leave(curthread); 343 344 return ret; 345 } 346 347 __weak_reference(__openat, openat); 348 349 int 350 __openat(int fd, const char *path, int flags, ...) 351 { 352 struct pthread *curthread = _get_curthread(); 353 int ret; 354 int mode = 0; 355 va_list ap; 356 357 _thr_cancel_enter(curthread); 358 359 /* Check if the file is being created: */ 360 if (flags & O_CREAT) { 361 /* Get the creation mode: */ 362 va_start(ap, flags); 363 mode = va_arg(ap, int); 364 va_end(ap); 365 } 366 367 ret = __sys_openat(fd, path, flags, mode); 368 369 _thr_cancel_leave(curthread); 370 371 return ret; 372 } 373 374 __weak_reference(__poll, poll); 375 376 int 377 __poll(struct pollfd *fds, unsigned int nfds, int timeout) 378 { 379 struct pthread *curthread = _get_curthread(); 380 int ret; 381 382 _thr_cancel_enter(curthread); 383 ret = __sys_poll(fds, nfds, timeout); 384 _thr_cancel_leave(curthread); 385 386 return ret; 387 } 388 389 __weak_reference(___pselect, pselect); 390 391 int 392 ___pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 393 const struct timespec *timo, const sigset_t *mask) 394 { 395 struct pthread *curthread = _get_curthread(); 396 int ret; 397 398 _thr_cancel_enter(curthread); 399 ret = __sys_pselect(count, rfds, wfds, efds, timo, mask); 400 _thr_cancel_leave(curthread); 401 402 return (ret); 403 } 404 405 __weak_reference(__read, read); 406 407 ssize_t 408 __read(int fd, void *buf, size_t nbytes) 409 { 410 struct pthread *curthread = _get_curthread(); 411 ssize_t ret; 412 413 _thr_cancel_enter(curthread); 414 ret = __sys_read(fd, buf, nbytes); 415 _thr_cancel_leave(curthread); 416 417 return ret; 418 } 419 420 __weak_reference(__readv, readv); 421 422 ssize_t 423 __readv(int fd, const struct iovec *iov, int iovcnt) 424 { 425 struct pthread *curthread = _get_curthread(); 426 ssize_t ret; 427 428 _thr_cancel_enter(curthread); 429 ret = __sys_readv(fd, iov, iovcnt); 430 _thr_cancel_leave(curthread); 431 432 return ret; 433 } 434 435 __weak_reference(__recvfrom, recvfrom); 436 437 ssize_t 438 __recvfrom(int s, void *b, size_t l, int f, struct sockaddr *from, 439 socklen_t *fl) 440 { 441 struct pthread *curthread = _get_curthread(); 442 ssize_t ret; 443 444 _thr_cancel_enter(curthread); 445 ret = __sys_recvfrom(s, b, l, f, from, fl); 446 _thr_cancel_leave(curthread); 447 return (ret); 448 } 449 450 __weak_reference(__recvmsg, recvmsg); 451 452 ssize_t 453 __recvmsg(int s, struct msghdr *m, int f) 454 { 455 struct pthread *curthread = _get_curthread(); 456 ssize_t ret; 457 458 _thr_cancel_enter(curthread); 459 ret = __sys_recvmsg(s, m, f); 460 _thr_cancel_leave(curthread); 461 return (ret); 462 } 463 464 __weak_reference(__select, select); 465 466 int 467 __select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, 468 struct timeval *timeout) 469 { 470 struct pthread *curthread = _get_curthread(); 471 int ret; 472 473 _thr_cancel_enter(curthread); 474 ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); 475 _thr_cancel_leave(curthread); 476 return ret; 477 } 478 479 __weak_reference(__sendmsg, sendmsg); 480 481 ssize_t 482 __sendmsg(int s, const struct msghdr *m, int f) 483 { 484 struct pthread *curthread = _get_curthread(); 485 ssize_t ret; 486 487 _thr_cancel_enter(curthread); 488 ret = __sys_sendmsg(s, m, f); 489 _thr_cancel_leave(curthread); 490 return (ret); 491 } 492 493 __weak_reference(__sendto, sendto); 494 495 ssize_t 496 __sendto(int s, const void *m, size_t l, int f, const struct sockaddr *t, 497 socklen_t tl) 498 { 499 struct pthread *curthread = _get_curthread(); 500 ssize_t ret; 501 502 _thr_cancel_enter(curthread); 503 ret = __sys_sendto(s, m, l, f, t, tl); 504 _thr_cancel_leave(curthread); 505 return (ret); 506 } 507 508 __weak_reference(___sleep, sleep); 509 510 unsigned int 511 ___sleep(unsigned int seconds) 512 { 513 struct pthread *curthread = _get_curthread(); 514 unsigned int ret; 515 516 _thr_cancel_enter(curthread); 517 ret = __sleep(seconds); 518 _thr_cancel_leave(curthread); 519 520 return (ret); 521 } 522 523 __weak_reference(___system, system); 524 525 int 526 ___system(const char *string) 527 { 528 struct pthread *curthread = _get_curthread(); 529 int ret; 530 531 _thr_cancel_enter(curthread); 532 ret = __system(string); 533 _thr_cancel_leave(curthread); 534 535 return ret; 536 } 537 538 __weak_reference(___tcdrain, tcdrain); 539 540 int 541 ___tcdrain(int fd) 542 { 543 struct pthread *curthread = _get_curthread(); 544 int ret; 545 546 _thr_cancel_enter(curthread); 547 ret = __tcdrain(fd); 548 _thr_cancel_leave(curthread); 549 550 return (ret); 551 } 552 553 __weak_reference(___usleep, usleep); 554 555 int 556 ___usleep(useconds_t useconds) 557 { 558 struct pthread *curthread = _get_curthread(); 559 int ret; 560 561 _thr_cancel_enter(curthread); 562 ret = __usleep(useconds); 563 _thr_cancel_leave(curthread); 564 565 return (ret); 566 } 567 568 __weak_reference(___wait, wait); 569 570 pid_t 571 ___wait(int *istat) 572 { 573 struct pthread *curthread = _get_curthread(); 574 pid_t ret; 575 576 _thr_cancel_enter(curthread); 577 ret = __wait(istat); 578 _thr_cancel_leave(curthread); 579 580 return ret; 581 } 582 583 __weak_reference(__wait3, wait3); 584 585 pid_t 586 __wait3(int *status, int options, struct rusage *rusage) 587 { 588 struct pthread *curthread = _get_curthread(); 589 pid_t ret; 590 591 _thr_cancel_enter(curthread); 592 ret = _wait4(WAIT_ANY, status, options, rusage); 593 _thr_cancel_leave(curthread); 594 595 return (ret); 596 } 597 598 __weak_reference(__wait4, wait4); 599 600 pid_t 601 __wait4(pid_t pid, int *status, int options, struct rusage *rusage) 602 { 603 struct pthread *curthread = _get_curthread(); 604 pid_t ret; 605 606 _thr_cancel_enter(curthread); 607 ret = __sys_wait4(pid, status, options, rusage); 608 _thr_cancel_leave(curthread); 609 610 return ret; 611 } 612 613 __weak_reference(___waitpid, waitpid); 614 615 pid_t 616 ___waitpid(pid_t wpid, int *status, int options) 617 { 618 struct pthread *curthread = _get_curthread(); 619 pid_t ret; 620 621 _thr_cancel_enter(curthread); 622 ret = __waitpid(wpid, status, options); 623 _thr_cancel_leave(curthread); 624 625 return ret; 626 } 627 628 __weak_reference(__write, write); 629 630 ssize_t 631 __write(int fd, const void *buf, size_t nbytes) 632 { 633 struct pthread *curthread = _get_curthread(); 634 ssize_t ret; 635 636 _thr_cancel_enter(curthread); 637 ret = __sys_write(fd, buf, nbytes); 638 _thr_cancel_leave(curthread); 639 640 return ret; 641 } 642 643 __weak_reference(__writev, writev); 644 645 ssize_t 646 __writev(int fd, const struct iovec *iov, int iovcnt) 647 { 648 struct pthread *curthread = _get_curthread(); 649 ssize_t ret; 650 651 _thr_cancel_enter(curthread); 652 ret = __sys_writev(fd, iov, iovcnt); 653 _thr_cancel_leave(curthread); 654 655 return ret; 656 } 657