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