mount.c revision 1.7
1 /* 2 * Copyright (c) 1980, 1989 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 char copyright[] = 36 "@(#) Copyright (c) 1980, 1989 The Regents of the University of California.\n\ 37 All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 /*static char sccsid[] = "from: @(#)mount.c 5.44 (Berkeley) 2/26/91";*/ 42 static char rcsid[] = "$Id: mount.c,v 1.7 1993/12/05 13:34:51 deraadt Exp $"; 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/file.h> 47 #include <sys/time.h> 48 #include <sys/wait.h> 49 #include <sys/errno.h> 50 #include <sys/signal.h> 51 #include <sys/mount.h> 52 #ifdef NFS 53 #include <sys/socket.h> 54 #include <sys/socketvar.h> 55 #include <netdb.h> 56 #include <rpc/rpc.h> 57 #include <rpc/pmap_clnt.h> 58 #include <rpc/pmap_prot.h> 59 #include <nfs/rpcv2.h> 60 #include <nfs/nfsv2.h> 61 #include <nfs/nfs.h> 62 #endif 63 #include <fstab.h> 64 #include <string.h> 65 #include <stdio.h> 66 #include <stdlib.h> 67 #include "pathnames.h" 68 69 #define DEFAULT_ROOTUID -2 70 71 #define BADTYPE(type) \ 72 (strcmp(type, FSTAB_RO) && strcmp(type, FSTAB_RW) && \ 73 strcmp(type, FSTAB_RQ)) 74 #define SETTYPE(type) \ 75 (!strcmp(type, FSTAB_RW) || !strcmp(type, FSTAB_RQ)) 76 77 int fake, verbose, updateflg, mnttype; 78 char *mntname, **envp; 79 char **vfslist, **makevfslist(); 80 static void prmount(); 81 82 #ifdef NFS 83 int xdr_dir(), xdr_fh(); 84 char *getnfsargs(); 85 struct nfs_args nfsdefargs = { 86 (struct sockaddr *)0, 87 SOCK_DGRAM, 88 0, 89 (nfsv2fh_t *)0, 90 0, 91 NFS_WSIZE, 92 NFS_RSIZE, 93 NFS_TIMEO, 94 NFS_RETRANS, 95 (char *)0, 96 }; 97 98 struct nfhret { 99 u_long stat; 100 nfsv2fh_t nfh; 101 }; 102 #define DEF_RETRY 10000 103 int retrycnt; 104 #define BGRND 1 105 #define ISBGRND 2 106 int opflags = 0; 107 #endif 108 109 main(argc, argv, arge) 110 int argc; 111 char **argv; 112 char **arge; 113 { 114 extern char *optarg; 115 extern int optind; 116 register struct fstab *fs; 117 int all, ch, rval, flags, ret, pid, i; 118 long mntsize; 119 struct statfs *mntbuf, *getmntpt(); 120 char *type, *options = NULL; 121 FILE *pidfile; 122 123 envp = arge; 124 all = 0; 125 type = NULL; 126 mnttype = MOUNT_UFS; 127 mntname = "ufs"; 128 while ((ch = getopt(argc, argv, "afrwuvt:o:")) != EOF) 129 switch((char)ch) { 130 case 'a': 131 all = 1; 132 break; 133 case 'f': 134 fake = 1; 135 break; 136 case 'r': 137 type = FSTAB_RO; 138 break; 139 case 'u': 140 updateflg = MNT_UPDATE; 141 break; 142 case 'v': 143 verbose = 1; 144 break; 145 case 'w': 146 type = FSTAB_RW; 147 break; 148 case 'o': 149 options = optarg; 150 break; 151 case 't': 152 vfslist = makevfslist(optarg); 153 mnttype = getmnttype(optarg); 154 break; 155 case '?': 156 default: 157 usage(); 158 /* NOTREACHED */ 159 } 160 argc -= optind; 161 argv += optind; 162 163 /* NOSTRICT */ 164 165 if (all) { 166 rval = 0; 167 while (fs = getfsent()) { 168 if (fs->fs_mntops && getnoauto(fs->fs_mntops)) 169 continue; 170 if (BADTYPE(fs->fs_type)) 171 continue; 172 if (badvfsname(fs->fs_vfstype, vfslist)) 173 continue; 174 /* `/' is special, it's always mounted */ 175 if (!strcmp(fs->fs_file, "/")) 176 flags = MNT_UPDATE; 177 else 178 flags = updateflg; 179 mnttype = getmnttype(fs->fs_vfstype); 180 rval |= mountfs(fs->fs_spec, fs->fs_file, flags, 181 type, options, fs->fs_mntops); 182 } 183 exit(rval); 184 } 185 186 if (argc == 0) { 187 if (verbose || fake || type) 188 usage(); 189 if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0) { 190 (void) fprintf(stderr, 191 "mount: cannot get mount information\n"); 192 exit(1); 193 } 194 for (i = 0; i < mntsize; i++) { 195 if (badvfstype(mntbuf[i].f_type, vfslist)) 196 continue; 197 prmount(mntbuf[i].f_mntfromname, mntbuf[i].f_mntonname, 198 mntbuf[i].f_flags); 199 } 200 exit(0); 201 } 202 203 if (argc == 1 && updateflg) { 204 if ((mntbuf = getmntpt(*argv)) == NULL) { 205 (void) fprintf(stderr, 206 "mount: unknown special file or file system %s.\n", 207 *argv); 208 exit(1); 209 } 210 mnttype = mntbuf->f_type; 211 #ifndef LETS_GET_SMALL 212 if (!strcmp(mntbuf->f_mntfromname, "root_device")) { 213 fs = getfsfile("/"); 214 strcpy(mntbuf->f_mntfromname, fs->fs_spec); 215 } 216 #endif 217 ret = mountfs(mntbuf->f_mntfromname, mntbuf->f_mntonname, 218 updateflg, type, options, (char *)NULL); 219 } else if (argc == 1) { 220 #ifndef LETS_GET_SMALL 221 if (!(fs = getfsfile(*argv)) && !(fs = getfsspec(*argv))) { 222 (void) fprintf(stderr, 223 "mount: unknown special file or file system %s.\n", 224 *argv); 225 exit(1); 226 } 227 if (BADTYPE(fs->fs_type)) { 228 (void) fprintf(stderr, 229 "mount: %s has unknown file system type.\n", *argv); 230 exit(1); 231 } 232 mnttype = getmnttype(fs->fs_vfstype); 233 ret = mountfs(fs->fs_spec, fs->fs_file, updateflg, 234 type, options, fs->fs_mntops); 235 #else 236 exit(1); 237 #endif 238 } else if (argc != 2) { 239 usage(); 240 ret = 1; 241 } else { 242 /* 243 * If -t flag has not been specified, and spec 244 * contains either a ':' or a '@' then assume that 245 * an NFS filesystem is being specified ala Sun. 246 */ 247 if (vfslist == (char **)0 && 248 (index(argv[0], ':') || index(argv[0], '@'))) 249 mnttype = MOUNT_NFS; 250 ret = mountfs(argv[0], argv[1], updateflg, type, options, 251 (char *)NULL); 252 } 253 #ifndef LETS_GET_SMALL 254 if ((pidfile = fopen(_PATH_MOUNTDPID, "r")) != NULL) { 255 pid = 0; 256 fscanf(pidfile, "%d", &pid); 257 fclose(pidfile); 258 if (pid > 0) 259 kill(pid, SIGHUP); 260 } 261 #endif 262 exit (ret); 263 } 264 265 mountfs(spec, name, flags, type, options, mntopts) 266 char *spec, *name, *type, *options, *mntopts; 267 int flags; 268 { 269 union wait status; 270 pid_t pid; 271 int argc, i; 272 struct ufs_args args; 273 #ifdef NFS 274 struct nfs_args nfsargs; 275 #endif 276 char *argp, *argv[50]; 277 char execname[MAXPATHLEN + 1], flagval[12]; 278 279 #ifdef NFS 280 nfsargs = nfsdefargs; 281 #endif 282 if (mntopts) 283 getstdopts(mntopts, &flags); 284 if (options) 285 getstdopts(options, &flags); 286 if (type) 287 getstdopts(type, &flags); 288 switch (mnttype) { 289 case MOUNT_UFS: 290 if (mntopts) 291 getufsopts(mntopts, &flags); 292 if (options) 293 getufsopts(options, &flags); 294 args.fspec = spec; 295 argp = (caddr_t)&args; 296 break; 297 298 #ifdef NFS 299 case MOUNT_NFS: 300 retrycnt = DEF_RETRY; 301 if (mntopts) 302 getnfsopts(mntopts, &nfsargs, &opflags, &retrycnt); 303 if (options) 304 getnfsopts(options, &nfsargs, &opflags, &retrycnt); 305 if (argp = getnfsargs(spec, &nfsargs)) 306 break; 307 return (1); 308 #endif /* NFS */ 309 310 #ifndef LETS_GET_SMALL 311 case MOUNT_MFS: 312 default: 313 argv[0] = mntname; 314 argc = 1; 315 if (flags) { 316 argv[argc++] = "-F"; 317 sprintf(flagval, "%d", flags); 318 argv[argc++] = flagval; 319 } 320 if (mntopts) 321 argc += getexecopts(mntopts, &argv[argc]); 322 if (options) 323 argc += getexecopts(options, &argv[argc]); 324 argv[argc++] = spec; 325 argv[argc++] = name; 326 argv[argc++] = NULL; 327 sprintf(execname, "%s/mount_%s", _PATH_EXECDIR, mntname); 328 if (verbose) { 329 (void)printf("exec: %s", execname); 330 for (i = 1; i < argc - 1; i++) 331 (void)printf(" %s", argv[i]); 332 (void)printf("\n"); 333 } 334 if (fake) 335 break; 336 if (pid = vfork()) { 337 if (pid == -1) { 338 perror("mount: vfork starting file system"); 339 return (1); 340 } 341 if (waitpid(pid, (int *)&status, 0) != -1 && 342 WIFEXITED(status) && 343 WEXITSTATUS(status) != 0) 344 return (WEXITSTATUS(status)); 345 spec = mntname; 346 goto out; 347 } 348 execve(execname, argv, envp); 349 (void) fprintf(stderr, "mount: cannot exec %s for %s: ", 350 execname, name); 351 perror((char *)NULL); 352 exit (1); 353 #endif 354 /* NOTREACHED */ 355 356 } 357 if (!fake && mount(mnttype, name, flags, argp)) { 358 #ifdef NFS 359 if (opflags & ISBGRND) 360 exit(1); 361 #endif 362 (void) fprintf(stderr, "%s on %s: ", spec, name); 363 switch (errno) { 364 case EMFILE: 365 (void) fprintf(stderr, "Mount table full\n"); 366 break; 367 case EINVAL: 368 if (flags & MNT_UPDATE) 369 (void) fprintf(stderr, "Specified device %s\n", 370 "does not match mounted device"); 371 else if (mnttype == MOUNT_UFS) 372 (void) fprintf(stderr, "Bogus super block\n"); 373 else 374 perror((char *)NULL); 375 break; 376 default: 377 perror((char *)NULL); 378 break; 379 } 380 return(1); 381 } 382 383 out: 384 if (verbose) 385 prmount(spec, name, flags); 386 387 #ifdef NFS 388 if (opflags & ISBGRND) 389 exit(1); 390 #endif 391 return(0); 392 } 393 394 static void 395 prmount(spec, name, flags) 396 char *spec, *name; 397 register short flags; 398 { 399 register int first; 400 401 #ifdef NFS 402 if (opflags & ISBGRND) 403 return; 404 #endif 405 (void)printf("%s on %s", spec, name); 406 if (!(flags & MNT_VISFLAGMASK)) { 407 (void)printf("\n"); 408 return; 409 } 410 first = 0; 411 #define PR(msg) (void)printf("%s%s", !first++ ? " (" : ", ", msg) 412 if (flags & MNT_RDONLY) 413 PR("read-only"); 414 if (flags & MNT_NOEXEC) 415 PR("noexec"); 416 if (flags & MNT_NOSUID) 417 PR("nosuid"); 418 if (flags & MNT_NODEV) 419 PR("nodev"); 420 if (flags & MNT_SYNCHRONOUS) 421 PR("synchronous"); 422 if (flags & MNT_QUOTA) 423 PR("with quotas"); 424 if (flags & MNT_LOCAL) 425 PR("local"); 426 if (flags & MNT_EXPORTED) 427 if (flags & MNT_EXRDONLY) 428 PR("NFS exported read-only"); 429 else 430 PR("NFS exported"); 431 (void)printf(")\n"); 432 } 433 434 getmnttype(fstype) 435 char *fstype; 436 { 437 438 mntname = fstype; 439 if (!strcmp(fstype, "ufs")) 440 return (MOUNT_UFS); 441 if (!strcmp(fstype, "nfs")) 442 return (MOUNT_NFS); 443 if (!strcmp(fstype, "mfs")) 444 return (MOUNT_MFS); 445 return (0); 446 } 447 448 usage() 449 { 450 451 (void) fprintf(stderr, 452 "usage:\n mount %s %s\n mount %s\n mount %s\n", 453 "[ -frwu ] [ -t nfs | ufs | external_type ]", 454 "[ -o options ] special node", 455 "[ -afrwu ] [ -t nfs | ufs | external_type ]", 456 "[ -frwu ] special | node"); 457 exit(1); 458 } 459 460 getnoauto(options) 461 char *options; 462 { 463 register char *opt; 464 int noauto = 0; 465 char optbuf[BUFSIZ]; 466 (void)strcpy(optbuf, options); 467 for (opt = strtok(optbuf, ","); opt; opt = strtok((char *)NULL, ",")) 468 if (!strcasecmp(opt, "noauto")) 469 noauto = 1; 470 else if (!strcasecmp(opt, "auto")) 471 noauto = 0; 472 return noauto; 473 } 474 475 getstdopts(options, flagp) 476 char *options; 477 int *flagp; 478 { 479 register char *opt; 480 int negative; 481 char optbuf[BUFSIZ]; 482 483 (void)strcpy(optbuf, options); 484 for (opt = strtok(optbuf, ","); opt; opt = strtok((char *)NULL, ",")) { 485 if (opt[0] == 'n' && opt[1] == 'o') { 486 negative++; 487 opt += 2; 488 } else { 489 negative = 0; 490 } 491 if (!negative && !strcasecmp(opt, FSTAB_RO)) { 492 *flagp |= MNT_RDONLY; 493 continue; 494 } 495 if (!negative && !strcasecmp(opt, FSTAB_RW)) { 496 *flagp &= ~MNT_RDONLY; 497 continue; 498 } 499 if (!strcasecmp(opt, "exec")) { 500 if (negative) 501 *flagp |= MNT_NOEXEC; 502 else 503 *flagp &= ~MNT_NOEXEC; 504 continue; 505 } 506 if (!strcasecmp(opt, "suid")) { 507 if (negative) 508 *flagp |= MNT_NOSUID; 509 else 510 *flagp &= ~MNT_NOSUID; 511 continue; 512 } 513 if (!strcasecmp(opt, "dev")) { 514 if (negative) 515 *flagp |= MNT_NODEV; 516 else 517 *flagp &= ~MNT_NODEV; 518 continue; 519 } 520 if (!strcasecmp(opt, "synchronous")) { 521 if (!negative) 522 *flagp |= MNT_SYNCHRONOUS; 523 else 524 *flagp &= ~MNT_SYNCHRONOUS; 525 continue; 526 } 527 } 528 } 529 530 /* ARGSUSED */ 531 getufsopts(options, flagp) 532 char *options; 533 int *flagp; 534 { 535 return; 536 } 537 538 getexecopts(options, argv) 539 char *options; 540 char **argv; 541 { 542 register int argc = 0; 543 register char *opt; 544 545 for (opt = strtok(options, ","); opt; opt = strtok((char *)NULL, ",")) { 546 if (opt[0] != '-') 547 continue; 548 argv[argc++] = opt; 549 if (opt[2] == '\0' || opt[2] != '=') 550 continue; 551 opt[2] = '\0'; 552 argv[argc++] = &opt[3]; 553 } 554 return (argc); 555 } 556 557 struct statfs * 558 getmntpt(name) 559 char *name; 560 { 561 long mntsize; 562 register long i; 563 struct statfs *mntbuf; 564 565 mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 566 for (i = 0; i < mntsize; i++) { 567 if (!strcmp(mntbuf[i].f_mntfromname, name) || 568 !strcmp(mntbuf[i].f_mntonname, name)) 569 return (&mntbuf[i]); 570 } 571 return ((struct statfs *)0); 572 } 573 574 static int skipvfs; 575 576 badvfstype(vfstype, vfslist) 577 short vfstype; 578 char **vfslist; 579 { 580 581 if (vfslist == 0) 582 return(0); 583 while (*vfslist) { 584 if (vfstype == getmnttype(*vfslist)) 585 return(skipvfs); 586 vfslist++; 587 } 588 return (!skipvfs); 589 } 590 591 badvfsname(vfsname, vfslist) 592 char *vfsname; 593 char **vfslist; 594 { 595 596 if (vfslist == 0) 597 return(0); 598 while (*vfslist) { 599 if (strcmp(vfsname, *vfslist) == 0) 600 return(skipvfs); 601 vfslist++; 602 } 603 return (!skipvfs); 604 } 605 606 char ** 607 makevfslist(fslist) 608 char *fslist; 609 { 610 register char **av, *nextcp; 611 register int i; 612 613 if (fslist == NULL) 614 return (NULL); 615 if (fslist[0] == 'n' && fslist[1] == 'o') { 616 fslist += 2; 617 skipvfs = 1; 618 } 619 for (i = 0, nextcp = fslist; *nextcp; nextcp++) 620 if (*nextcp == ',') 621 i++; 622 av = (char **)malloc((size_t)(i+2) * sizeof(char *)); 623 if (av == NULL) 624 return (NULL); 625 nextcp = fslist; 626 i = 0; 627 av[i++] = nextcp; 628 while (nextcp = index(nextcp, ',')) { 629 *nextcp++ = '\0'; 630 av[i++] = nextcp; 631 } 632 av[i++] = 0; 633 return (av); 634 } 635 636 #ifdef NFS 637 exclusive(a, b) 638 char *a, *b; 639 { 640 641 (void) fprintf(stderr, "mount: Options %s, %s mutually exclusive\n", 642 a, b); 643 exit(1); 644 } 645 646 /* 647 * Handle the getoption arg. 648 * Essentially update "opflags", "retrycnt" and "nfsargs" 649 */ 650 getnfsopts(optarg, nfsargsp, opflagsp, retrycntp) 651 char *optarg; 652 register struct nfs_args *nfsargsp; 653 int *opflagsp; 654 int *retrycntp; 655 { 656 register char *cp, *nextcp; 657 int num; 658 char *nump; 659 660 for (cp = optarg; cp != NULL && *cp != '\0'; cp = nextcp) { 661 if ((nextcp = index(cp, ',')) != NULL) 662 *nextcp++ = '\0'; 663 if ((nump = index(cp, '=')) != NULL) { 664 *nump++ = '\0'; 665 num = atoi(nump); 666 } else 667 num = -1; 668 /* 669 * Just test for a string match and do it 670 */ 671 if (!strcmp(cp, "bg")) { 672 *opflagsp |= BGRND; 673 } else if (!strcmp(cp, "soft")) { 674 if (nfsargsp->flags & NFSMNT_SPONGY) 675 exclusive("soft, spongy"); 676 nfsargsp->flags |= NFSMNT_SOFT; 677 } else if (!strcmp(cp, "spongy")) { 678 if (nfsargsp->flags & NFSMNT_SOFT) 679 exclusive("soft, spongy"); 680 nfsargsp->flags |= NFSMNT_SPONGY; 681 } else if (!strcmp(cp, "compress")) { 682 nfsargsp->flags |= NFSMNT_COMPRESS; 683 } else if (!strcmp(cp, "intr")) { 684 nfsargsp->flags |= NFSMNT_INT; 685 } else if (!strcmp(cp, "tcp")) { 686 nfsargsp->sotype = SOCK_STREAM; 687 } else if (!strcmp(cp, "noconn")) { 688 nfsargsp->flags |= NFSMNT_NOCONN; 689 } else if (!strcmp(cp, "retry") && num > 0) { 690 *retrycntp = num; 691 } else if (!strcmp(cp, "rsize") && num > 0) { 692 nfsargsp->rsize = num; 693 nfsargsp->flags |= NFSMNT_RSIZE; 694 } else if (!strcmp(cp, "wsize") && num > 0) { 695 nfsargsp->wsize = num; 696 nfsargsp->flags |= NFSMNT_WSIZE; 697 } else if (!strcmp(cp, "timeo") && num > 0) { 698 nfsargsp->timeo = num; 699 nfsargsp->flags |= NFSMNT_TIMEO; 700 } else if (!strcmp(cp, "retrans") && num > 0) { 701 nfsargsp->retrans = num; 702 nfsargsp->flags |= NFSMNT_RETRANS; 703 } 704 } 705 if (nfsargsp->sotype == SOCK_DGRAM) { 706 if (nfsargsp->rsize > NFS_MAXDGRAMDATA) 707 nfsargsp->rsize = NFS_MAXDGRAMDATA; 708 if (nfsargsp->wsize > NFS_MAXDGRAMDATA) 709 nfsargsp->wsize = NFS_MAXDGRAMDATA; 710 } 711 } 712 713 char * 714 getnfsargs(spec, nfsargsp) 715 char *spec; 716 struct nfs_args *nfsargsp; 717 { 718 register CLIENT *clp; 719 struct hostent *hp; 720 static struct sockaddr_in saddr; 721 struct timeval pertry, try; 722 enum clnt_stat clnt_stat; 723 int so = RPC_ANYSOCK; 724 char *fsp, *hostp, *delimp; 725 u_short tport; 726 static struct nfhret nfhret; 727 static char nam[MNAMELEN + 1]; 728 char buf[MAXPATHLEN + 1]; 729 730 strncpy(buf, spec, MAXPATHLEN); 731 buf[MAXPATHLEN] = '\0'; 732 strncpy(nam, spec, MNAMELEN); 733 nam[MNAMELEN] = '\0'; 734 if ((delimp = index(buf, '@')) != NULL) { 735 hostp = delimp + 1; 736 fsp = buf; 737 } else if ((delimp = index(buf, ':')) != NULL) { 738 hostp = buf; 739 fsp = delimp + 1; 740 } else { 741 (void) fprintf(stderr, 742 "mount: No <host>:<dirpath> or <dirpath>@<host> spec\n"); 743 return (0); 744 } 745 *delimp = '\0'; 746 if ((hp = gethostbyname(hostp)) == NULL) { 747 (void) fprintf(stderr, "mount: Can't get net id for host\n"); 748 return (0); 749 } 750 bzero((char *)&saddr, sizeof saddr); 751 bcopy(hp->h_addr, (caddr_t)&saddr.sin_addr, hp->h_length); 752 nfhret.stat = ETIMEDOUT; /* Mark not yet successful */ 753 while (retrycnt > 0) { 754 saddr.sin_family = AF_INET; 755 saddr.sin_port = htons(PMAPPORT); 756 if ((tport = pmap_getport(&saddr, RPCPROG_NFS, 757 NFS_VER2, IPPROTO_UDP)) == 0) { 758 if ((opflags & ISBGRND) == 0) 759 clnt_pcreateerror("NFS Portmap"); 760 } else { 761 saddr.sin_port = 0; 762 pertry.tv_sec = 10; 763 pertry.tv_usec = 0; 764 if ((clp = clntudp_create(&saddr, RPCPROG_MNT, 765 RPCMNT_VER1, pertry, &so)) == NULL) { 766 if ((opflags & ISBGRND) == 0) 767 clnt_pcreateerror("Cannot MNT PRC"); 768 } else { 769 clp->cl_auth = authunix_create_default(); 770 try.tv_sec = 10; 771 try.tv_usec = 0; 772 clnt_stat = clnt_call(clp, RPCMNT_MOUNT, 773 xdr_dir, fsp, xdr_fh, &nfhret, try); 774 if (clnt_stat != RPC_SUCCESS) { 775 if ((opflags & ISBGRND) == 0) 776 clnt_perror(clp, "Bad MNT RPC"); 777 } else { 778 auth_destroy(clp->cl_auth); 779 clnt_destroy(clp); 780 retrycnt = 0; 781 } 782 } 783 } 784 if (--retrycnt > 0) { 785 if (opflags & BGRND) { 786 opflags &= ~BGRND; 787 if (fork()) 788 return (0); 789 else 790 opflags |= ISBGRND; 791 } 792 sleep(10); 793 } 794 } 795 if (nfhret.stat) { 796 if (opflags & ISBGRND) 797 exit(1); 798 (void) fprintf(stderr, "Mount RPC error on %s: ", spec); 799 errno = nfhret.stat; 800 perror((char *)NULL); 801 return (0); 802 } 803 saddr.sin_port = htons(tport); 804 nfsargsp->addr = (struct sockaddr *) &saddr; 805 nfsargsp->fh = &nfhret.nfh; 806 nfsargsp->hostname = nam; 807 return ((caddr_t)nfsargsp); 808 } 809 810 /* 811 * xdr routines for mount rpc's 812 */ 813 xdr_dir(xdrsp, dirp) 814 XDR *xdrsp; 815 char *dirp; 816 { 817 return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN)); 818 } 819 820 xdr_fh(xdrsp, np) 821 XDR *xdrsp; 822 struct nfhret *np; 823 { 824 if (!xdr_u_long(xdrsp, &(np->stat))) 825 return (0); 826 if (np->stat) 827 return (1); 828 return (xdr_opaque(xdrsp, (caddr_t)&(np->nfh), NFSX_FH)); 829 } 830 #endif /* NFS */ 831
Indexes created Tue Sep 30 07:10:03 GMT 2025