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_poll(struct pollfd *, unsigned, int); 108 extern ssize_t __sys_recv(int, void *, size_t, int); 109 extern ssize_t __sys_recvfrom(int, void *, size_t, int, struct sockaddr *, socklen_t *); 110 extern ssize_t __sys_recvmsg(int, struct msghdr *, int); 111 extern int __sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 112 extern int __sys_sendfile(int, int, off_t, size_t, struct sf_hdtr *, 113 off_t *, int); 114 extern ssize_t __sys_sendmsg(int, const struct msghdr *, int); 115 extern ssize_t __sys_sendto(int, const void *,size_t, int, const struct sockaddr *, socklen_t); 116 extern ssize_t __sys_readv(int, const struct iovec *, int); 117 extern pid_t __sys_wait4(pid_t, int *, int, struct rusage *); 118 extern ssize_t __sys_writev(int, const struct iovec *, int); 119 120 int ___creat(const char *, mode_t); 121 int ___pselect(int, fd_set *, fd_set *, fd_set *, 122 const struct timespec *, const sigset_t *); 123 unsigned ___sleep(unsigned); 124 int ___system(const char *); 125 int ___tcdrain(int); 126 int ___usleep(useconds_t useconds); 127 pid_t ___wait(int *); 128 pid_t ___waitpid(pid_t, int *, int); 129 int __accept(int, struct sockaddr *, socklen_t *); 130 int __aio_suspend(const struct aiocb * const iocbs[], int, 131 const struct timespec *); 132 int __close(int); 133 int __connect(int, const struct sockaddr *, socklen_t); 134 int __fcntl(int, int,...); 135 #ifdef SYSCALL_COMPAT 136 extern int __fcntl_compat(int, int,...); 137 #endif 138 int __fsync(int); 139 int __msync(void *, size_t, int); 140 int __nanosleep(const struct timespec *, struct timespec *); 141 int __open(const char *, int,...); 142 int __poll(struct pollfd *, unsigned int, int); 143 ssize_t __read(int, void *buf, size_t); 144 ssize_t __readv(int, const struct iovec *, int); 145 ssize_t __recvfrom(int, void *, size_t, int f, struct sockaddr *, socklen_t *); 146 ssize_t __recvmsg(int, struct msghdr *, int); 147 int __select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 148 ssize_t __sendmsg(int, const struct msghdr *, int); 149 ssize_t __sendto(int, const void *, size_t, int, 150 const struct sockaddr *, socklen_t); 151 pid_t __wait3(int *, int, struct rusage *); 152 pid_t __wait4(pid_t, int *, int, struct rusage *); 153 ssize_t __write(int, const void *, size_t); 154 ssize_t __writev(int, const struct iovec *, int); 155 156 __weak_reference(__accept, accept); 157 158 int 159 __accept(int s, struct sockaddr *addr, socklen_t *addrlen) 160 { 161 struct pthread *curthread; 162 int ret; 163 164 curthread = _get_curthread(); 165 _thr_cancel_enter(curthread); 166 ret = __sys_accept(s, addr, addrlen); 167 _thr_cancel_leave(curthread); 168 169 return (ret); 170 } 171 172 __weak_reference(__aio_suspend, aio_suspend); 173 174 int 175 __aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct 176 timespec *timeout) 177 { 178 struct pthread *curthread = _get_curthread(); 179 int ret; 180 181 _thr_cancel_enter(curthread); 182 ret = __sys_aio_suspend(iocbs, niocb, timeout); 183 _thr_cancel_leave(curthread); 184 185 return (ret); 186 } 187 188 __weak_reference(__close, close); 189 190 int 191 __close(int fd) 192 { 193 struct pthread *curthread = _get_curthread(); 194 int ret; 195 196 _thr_cancel_enter(curthread); 197 ret = __sys_close(fd); 198 _thr_cancel_leave(curthread); 199 200 return (ret); 201 } 202 203 __weak_reference(__connect, connect); 204 205 int 206 __connect(int fd, const struct sockaddr *name, socklen_t namelen) 207 { 208 struct pthread *curthread = _get_curthread(); 209 int ret; 210 211 _thr_cancel_enter(curthread); 212 ret = __sys_connect(fd, name, namelen); 213 _thr_cancel_leave(curthread); 214 215 return (ret); 216 } 217 218 __weak_reference(___creat, creat); 219 220 int 221 ___creat(const char *path, mode_t mode) 222 { 223 struct pthread *curthread = _get_curthread(); 224 int ret; 225 226 _thr_cancel_enter(curthread); 227 ret = __creat(path, mode); 228 _thr_cancel_leave(curthread); 229 230 return ret; 231 } 232 233 __weak_reference(__fcntl, fcntl); 234 235 int 236 __fcntl(int fd, int cmd,...) 237 { 238 struct pthread *curthread = _get_curthread(); 239 int ret; 240 va_list ap; 241 242 _thr_cancel_enter(curthread); 243 244 va_start(ap, cmd); 245 switch (cmd) { 246 case F_DUPFD: 247 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 248 break; 249 case F_SETFD: 250 case F_SETFL: 251 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 252 break; 253 case F_GETFD: 254 case F_GETFL: 255 ret = __sys_fcntl(fd, cmd); 256 break; 257 default: 258 #ifdef SYSCALL_COMPAT 259 ret = __fcntl_compat(fd, cmd, va_arg(ap, void *)); 260 #else 261 ret = __sys_fcntl(fd, cmd, va_arg(ap, void *)); 262 #endif 263 } 264 va_end(ap); 265 266 _thr_cancel_leave(curthread); 267 268 return (ret); 269 } 270 271 __weak_reference(__fsync, fsync); 272 273 int 274 __fsync(int fd) 275 { 276 struct pthread *curthread = _get_curthread(); 277 int ret; 278 279 _thr_cancel_enter(curthread); 280 ret = __sys_fsync(fd); 281 _thr_cancel_leave(curthread); 282 283 return (ret); 284 } 285 286 __weak_reference(__msync, msync); 287 288 int 289 __msync(void *addr, size_t len, int flags) 290 { 291 struct pthread *curthread = _get_curthread(); 292 int ret; 293 294 _thr_cancel_enter(curthread); 295 ret = __sys_msync(addr, len, flags); 296 _thr_cancel_leave(curthread); 297 298 return ret; 299 } 300 301 __weak_reference(__nanosleep, nanosleep); 302 303 int 304 __nanosleep(const struct timespec *time_to_sleep, 305 struct timespec *time_remaining) 306 { 307 struct pthread *curthread = _get_curthread(); 308 int ret; 309 310 _thr_cancel_enter(curthread); 311 ret = __sys_nanosleep(time_to_sleep, time_remaining); 312 _thr_cancel_leave(curthread); 313 314 return (ret); 315 } 316 317 __weak_reference(__open, open); 318 319 int 320 __open(const char *path, int flags,...) 321 { 322 struct pthread *curthread = _get_curthread(); 323 int ret; 324 int mode = 0; 325 va_list ap; 326 327 _thr_cancel_enter(curthread); 328 329 /* Check if the file is being created: */ 330 if (flags & O_CREAT) { 331 /* Get the creation mode: */ 332 va_start(ap, flags); 333 mode = va_arg(ap, int); 334 va_end(ap); 335 } 336 337 ret = __sys_open(path, flags, mode); 338 339 _thr_cancel_leave(curthread); 340 341 return ret; 342 } 343 344 __weak_reference(__poll, poll); 345 346 int 347 __poll(struct pollfd *fds, unsigned int nfds, int timeout) 348 { 349 struct pthread *curthread = _get_curthread(); 350 int ret; 351 352 _thr_cancel_enter(curthread); 353 ret = __sys_poll(fds, nfds, timeout); 354 _thr_cancel_leave(curthread); 355 356 return ret; 357 } 358 359 __weak_reference(___pselect, pselect); 360 361 int 362 ___pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 363 const struct timespec *timo, const sigset_t *mask) 364 { 365 struct pthread *curthread = _get_curthread(); 366 int ret; 367 368 _thr_cancel_enter(curthread); 369 ret = __pselect(count, rfds, wfds, efds, timo, mask); 370 _thr_cancel_leave(curthread); 371 372 return (ret); 373 } 374 375 __weak_reference(__read, read); 376 377 ssize_t 378 __read(int fd, void *buf, size_t nbytes) 379 { 380 struct pthread *curthread = _get_curthread(); 381 ssize_t ret; 382 383 _thr_cancel_enter(curthread); 384 ret = __sys_read(fd, buf, nbytes); 385 _thr_cancel_leave(curthread); 386 387 return ret; 388 } 389 390 __weak_reference(__readv, readv); 391 392 ssize_t 393 __readv(int fd, const struct iovec *iov, int iovcnt) 394 { 395 struct pthread *curthread = _get_curthread(); 396 ssize_t ret; 397 398 _thr_cancel_enter(curthread); 399 ret = __sys_readv(fd, iov, iovcnt); 400 _thr_cancel_leave(curthread); 401 402 return ret; 403 } 404 405 __weak_reference(__recvfrom, recvfrom); 406 407 ssize_t 408 __recvfrom(int s, void *b, size_t l, int f, struct sockaddr *from, 409 socklen_t *fl) 410 { 411 struct pthread *curthread = _get_curthread(); 412 ssize_t ret; 413 414 _thr_cancel_enter(curthread); 415 ret = __sys_recvfrom(s, b, l, f, from, fl); 416 _thr_cancel_leave(curthread); 417 return (ret); 418 } 419 420 __weak_reference(__recvmsg, recvmsg); 421 422 ssize_t 423 __recvmsg(int s, struct msghdr *m, int f) 424 { 425 struct pthread *curthread = _get_curthread(); 426 ssize_t ret; 427 428 _thr_cancel_enter(curthread); 429 ret = __sys_recvmsg(s, m, f); 430 _thr_cancel_leave(curthread); 431 return (ret); 432 } 433 434 __weak_reference(__select, select); 435 436 int 437 __select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, 438 struct timeval *timeout) 439 { 440 struct pthread *curthread = _get_curthread(); 441 int ret; 442 443 _thr_cancel_enter(curthread); 444 ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); 445 _thr_cancel_leave(curthread); 446 return ret; 447 } 448 449 __weak_reference(__sendmsg, sendmsg); 450 451 ssize_t 452 __sendmsg(int s, const struct msghdr *m, int f) 453 { 454 struct pthread *curthread = _get_curthread(); 455 ssize_t ret; 456 457 _thr_cancel_enter(curthread); 458 ret = __sys_sendmsg(s, m, f); 459 _thr_cancel_leave(curthread); 460 return (ret); 461 } 462 463 __weak_reference(__sendto, sendto); 464 465 ssize_t 466 __sendto(int s, const void *m, size_t l, int f, const struct sockaddr *t, 467 socklen_t tl) 468 { 469 struct pthread *curthread = _get_curthread(); 470 ssize_t ret; 471 472 _thr_cancel_enter(curthread); 473 ret = __sys_sendto(s, m, l, f, t, tl); 474 _thr_cancel_leave(curthread); 475 return (ret); 476 } 477 478 __weak_reference(___sleep, sleep); 479 480 unsigned int 481 ___sleep(unsigned int seconds) 482 { 483 struct pthread *curthread = _get_curthread(); 484 unsigned int ret; 485 486 _thr_cancel_enter(curthread); 487 ret = __sleep(seconds); 488 _thr_cancel_leave(curthread); 489 490 return (ret); 491 } 492 493 __weak_reference(___system, system); 494 495 int 496 ___system(const char *string) 497 { 498 struct pthread *curthread = _get_curthread(); 499 int ret; 500 501 _thr_cancel_enter(curthread); 502 ret = __system(string); 503 _thr_cancel_leave(curthread); 504 505 return ret; 506 } 507 508 __weak_reference(___tcdrain, tcdrain); 509 510 int 511 ___tcdrain(int fd) 512 { 513 struct pthread *curthread = _get_curthread(); 514 int ret; 515 516 _thr_cancel_enter(curthread); 517 ret = __tcdrain(fd); 518 _thr_cancel_leave(curthread); 519 520 return (ret); 521 } 522 523 __weak_reference(___usleep, usleep); 524 525 int 526 ___usleep(useconds_t useconds) 527 { 528 struct pthread *curthread = _get_curthread(); 529 int ret; 530 531 _thr_cancel_enter(curthread); 532 ret = __usleep(useconds); 533 _thr_cancel_leave(curthread); 534 535 return (ret); 536 } 537 538 __weak_reference(___wait, wait); 539 540 pid_t 541 ___wait(int *istat) 542 { 543 struct pthread *curthread = _get_curthread(); 544 pid_t ret; 545 546 _thr_cancel_enter(curthread); 547 ret = __wait(istat); 548 _thr_cancel_leave(curthread); 549 550 return ret; 551 } 552 553 __weak_reference(__wait3, wait3); 554 555 pid_t 556 __wait3(int *status, int options, struct rusage *rusage) 557 { 558 struct pthread *curthread = _get_curthread(); 559 pid_t ret; 560 561 _thr_cancel_enter(curthread); 562 ret = _wait4(WAIT_ANY, status, options, rusage); 563 _thr_cancel_leave(curthread); 564 565 return (ret); 566 } 567 568 __weak_reference(__wait4, wait4); 569 570 pid_t 571 __wait4(pid_t pid, int *status, int options, struct rusage *rusage) 572 { 573 struct pthread *curthread = _get_curthread(); 574 pid_t ret; 575 576 _thr_cancel_enter(curthread); 577 ret = __sys_wait4(pid, status, options, rusage); 578 _thr_cancel_leave(curthread); 579 580 return ret; 581 } 582 583 __weak_reference(___waitpid, waitpid); 584 585 pid_t 586 ___waitpid(pid_t wpid, int *status, int options) 587 { 588 struct pthread *curthread = _get_curthread(); 589 pid_t ret; 590 591 _thr_cancel_enter(curthread); 592 ret = __waitpid(wpid, status, options); 593 _thr_cancel_leave(curthread); 594 595 return ret; 596 } 597 598 __weak_reference(__write, write); 599 600 ssize_t 601 __write(int fd, const void *buf, size_t nbytes) 602 { 603 struct pthread *curthread = _get_curthread(); 604 ssize_t ret; 605 606 _thr_cancel_enter(curthread); 607 ret = __sys_write(fd, buf, nbytes); 608 _thr_cancel_leave(curthread); 609 610 return ret; 611 } 612 613 __weak_reference(__writev, writev); 614 615 ssize_t 616 __writev(int fd, const struct iovec *iov, int iovcnt) 617 { 618 struct pthread *curthread = _get_curthread(); 619 ssize_t ret; 620 621 _thr_cancel_enter(curthread); 622 ret = __sys_writev(fd, iov, iovcnt); 623 _thr_cancel_leave(curthread); 624 625 return ret; 626 } 627