mount.c revision 1.5
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 1.5 1993/08/03 01:25:52 mycroft 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 args.exroot = DEFAULT_ROOTUID; 296 if (flags & MNT_RDONLY) 297 args.exflags = MNT_EXRDONLY; 298 else 299 args.exflags = 0; 300 argp = (caddr_t)&args; 301 break; 302 303 #ifdef NFS 304 case MOUNT_NFS: 305 retrycnt = DEF_RETRY; 306 if (mntopts) 307 getnfsopts(mntopts, &nfsargs, &opflags, &retrycnt); 308 if (options) 309 getnfsopts(options, &nfsargs, &opflags, &retrycnt); 310 if (argp = getnfsargs(spec, &nfsargs)) 311 break; 312 return (1); 313 #endif /* NFS */ 314 315 #ifndef LETS_GET_SMALL 316 case MOUNT_MFS: 317 default: 318 argv[0] = mntname; 319 argc = 1; 320 if (flags) { 321 argv[argc++] = "-F"; 322 sprintf(flagval, "%d", flags); 323 argv[argc++] = flagval; 324 } 325 if (mntopts) 326 argc += getexecopts(mntopts, &argv[argc]); 327 if (options) 328 argc += getexecopts(options, &argv[argc]); 329 argv[argc++] = spec; 330 argv[argc++] = name; 331 argv[argc++] = NULL; 332 sprintf(execname, "%s/mount_%s", _PATH_EXECDIR, mntname); 333 if (verbose) { 334 (void)printf("exec: %s", execname); 335 for (i = 1; i < argc - 1; i++) 336 (void)printf(" %s", argv[i]); 337 (void)printf("\n"); 338 } 339 if (fake) 340 break; 341 if (pid = vfork()) { 342 if (pid == -1) { 343 perror("mount: vfork starting file system"); 344 return (1); 345 } 346 if (waitpid(pid, (int *)&status, 0) != -1 && 347 WIFEXITED(status) && 348 WEXITSTATUS(status) != 0) 349 return (WEXITSTATUS(status)); 350 spec = mntname; 351 goto out; 352 } 353 execve(execname, argv, envp); 354 (void) fprintf(stderr, "mount: cannot exec %s for %s: ", 355 execname, name); 356 perror((char *)NULL); 357 exit (1); 358 #endif 359 /* NOTREACHED */ 360 361 } 362 if (!fake && mount(mnttype, name, flags, argp)) { 363 #ifdef NFS 364 if (opflags & ISBGRND) 365 exit(1); 366 #endif 367 (void) fprintf(stderr, "%s on %s: ", spec, name); 368 switch (errno) { 369 case EMFILE: 370 (void) fprintf(stderr, "Mount table full\n"); 371 break; 372 case EINVAL: 373 if (flags & MNT_UPDATE) 374 (void) fprintf(stderr, "Specified device %s\n", 375 "does not match mounted device"); 376 else if (mnttype == MOUNT_UFS) 377 (void) fprintf(stderr, "Bogus super block\n"); 378 else 379 perror((char *)NULL); 380 break; 381 default: 382 perror((char *)NULL); 383 break; 384 } 385 return(1); 386 } 387 388 out: 389 if (verbose) 390 prmount(spec, name, flags); 391 392 #ifdef NFS 393 if (opflags & ISBGRND) 394 exit(1); 395 #endif 396 return(0); 397 } 398 399 static void 400 prmount(spec, name, flags) 401 char *spec, *name; 402 register short flags; 403 { 404 register int first; 405 406 #ifdef NFS 407 if (opflags & ISBGRND) 408 return; 409 #endif 410 (void)printf("%s on %s", spec, name); 411 if (!(flags & MNT_VISFLAGMASK)) { 412 (void)printf("\n"); 413 return; 414 } 415 first = 0; 416 #define PR(msg) (void)printf("%s%s", !first++ ? " (" : ", ", msg) 417 if (flags & MNT_RDONLY) 418 PR("read-only"); 419 if (flags & MNT_NOEXEC) 420 PR("noexec"); 421 if (flags & MNT_NOSUID) 422 PR("nosuid"); 423 if (flags & MNT_NODEV) 424 PR("nodev"); 425 if (flags & MNT_SYNCHRONOUS) 426 PR("synchronous"); 427 if (flags & MNT_QUOTA) 428 PR("with quotas"); 429 if (flags & MNT_LOCAL) 430 PR("local"); 431 if (flags & MNT_EXPORTED) 432 if (flags & MNT_EXRDONLY) 433 PR("NFS exported read-only"); 434 else 435 PR("NFS exported"); 436 (void)printf(")\n"); 437 } 438 439 getmnttype(fstype) 440 char *fstype; 441 { 442 443 mntname = fstype; 444 if (!strcmp(fstype, "ufs")) 445 return (MOUNT_UFS); 446 if (!strcmp(fstype, "nfs")) 447 return (MOUNT_NFS); 448 if (!strcmp(fstype, "mfs")) 449 return (MOUNT_MFS); 450 return (0); 451 } 452 453 usage() 454 { 455 456 (void) fprintf(stderr, 457 "usage:\n mount %s %s\n mount %s\n mount %s\n", 458 "[ -frwu ] [ -t nfs | ufs | external_type ]", 459 "[ -o options ] special node", 460 "[ -afrwu ] [ -t nfs | ufs | external_type ]", 461 "[ -frwu ] special | node"); 462 exit(1); 463 } 464 465 getnoauto(options) 466 char *options; 467 { 468 register char *opt; 469 int noauto = 0; 470 char optbuf[BUFSIZ]; 471 (void)strcpy(optbuf, options); 472 for (opt = strtok(optbuf, ","); opt; opt = strtok((char *)NULL, ",")) 473 if (!strcasecmp(opt, "noauto")) 474 noauto = 1; 475 else if (!strcasecmp(opt, "auto")) 476 noauto = 0; 477 return noauto; 478 } 479 480 getstdopts(options, flagp) 481 char *options; 482 int *flagp; 483 { 484 register char *opt; 485 int negative; 486 char optbuf[BUFSIZ]; 487 488 (void)strcpy(optbuf, options); 489 for (opt = strtok(optbuf, ","); opt; opt = strtok((char *)NULL, ",")) { 490 if (opt[0] == 'n' && opt[1] == 'o') { 491 negative++; 492 opt += 2; 493 } else { 494 negative = 0; 495 } 496 if (!negative && !strcasecmp(opt, FSTAB_RO)) { 497 *flagp |= MNT_RDONLY; 498 continue; 499 } 500 if (!negative && !strcasecmp(opt, FSTAB_RW)) { 501 *flagp &= ~MNT_RDONLY; 502 continue; 503 } 504 if (!strcasecmp(opt, "exec")) { 505 if (negative) 506 *flagp |= MNT_NOEXEC; 507 else 508 *flagp &= ~MNT_NOEXEC; 509 continue; 510 } 511 if (!strcasecmp(opt, "suid")) { 512 if (negative) 513 *flagp |= MNT_NOSUID; 514 else 515 *flagp &= ~MNT_NOSUID; 516 continue; 517 } 518 if (!strcasecmp(opt, "dev")) { 519 if (negative) 520 *flagp |= MNT_NODEV; 521 else 522 *flagp &= ~MNT_NODEV; 523 continue; 524 } 525 if (!strcasecmp(opt, "synchronous")) { 526 if (!negative) 527 *flagp |= MNT_SYNCHRONOUS; 528 else 529 *flagp &= ~MNT_SYNCHRONOUS; 530 continue; 531 } 532 } 533 } 534 535 /* ARGSUSED */ 536 getufsopts(options, flagp) 537 char *options; 538 int *flagp; 539 { 540 return; 541 } 542 543 getexecopts(options, argv) 544 char *options; 545 char **argv; 546 { 547 register int argc = 0; 548 register char *opt; 549 550 for (opt = strtok(options, ","); opt; opt = strtok((char *)NULL, ",")) { 551 if (opt[0] != '-') 552 continue; 553 argv[argc++] = opt; 554 if (opt[2] == '\0' || opt[2] != '=') 555 continue; 556 opt[2] = '\0'; 557 argv[argc++] = &opt[3]; 558 } 559 return (argc); 560 } 561 562 struct statfs * 563 getmntpt(name) 564 char *name; 565 { 566 long mntsize; 567 register long i; 568 struct statfs *mntbuf; 569 570 mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 571 for (i = 0; i < mntsize; i++) { 572 if (!strcmp(mntbuf[i].f_mntfromname, name) || 573 !strcmp(mntbuf[i].f_mntonname, name)) 574 return (&mntbuf[i]); 575 } 576 return ((struct statfs *)0); 577 } 578 579 static int skipvfs; 580 581 badvfstype(vfstype, vfslist) 582 short vfstype; 583 char **vfslist; 584 { 585 586 if (vfslist == 0) 587 return(0); 588 while (*vfslist) { 589 if (vfstype == getmnttype(*vfslist)) 590 return(skipvfs); 591 vfslist++; 592 } 593 return (!skipvfs); 594 } 595 596 badvfsname(vfsname, vfslist) 597 char *vfsname; 598 char **vfslist; 599 { 600 601 if (vfslist == 0) 602 return(0); 603 while (*vfslist) { 604 if (strcmp(vfsname, *vfslist) == 0) 605 return(skipvfs); 606 vfslist++; 607 } 608 return (!skipvfs); 609 } 610 611 char ** 612 makevfslist(fslist) 613 char *fslist; 614 { 615 register char **av, *nextcp; 616 register int i; 617 618 if (fslist == NULL) 619 return (NULL); 620 if (fslist[0] == 'n' && fslist[1] == 'o') { 621 fslist += 2; 622 skipvfs = 1; 623 } 624 for (i = 0, nextcp = fslist; *nextcp; nextcp++) 625 if (*nextcp == ',') 626 i++; 627 av = (char **)malloc((size_t)(i+2) * sizeof(char *)); 628 if (av == NULL) 629 return (NULL); 630 nextcp = fslist; 631 i = 0; 632 av[i++] = nextcp; 633 while (nextcp = index(nextcp, ',')) { 634 *nextcp++ = '\0'; 635 av[i++] = nextcp; 636 } 637 av[i++] = 0; 638 return (av); 639 } 640 641 #ifdef NFS 642 exclusive(a, b) 643 char *a, *b; 644 { 645 646 (void) fprintf(stderr, "mount: Options %s, %s mutually exclusive\n", 647 a, b); 648 exit(1); 649 } 650 651 /* 652 * Handle the getoption arg. 653 * Essentially update "opflags", "retrycnt" and "nfsargs" 654 */ 655 getnfsopts(optarg, nfsargsp, opflagsp, retrycntp) 656 char *optarg; 657 register struct nfs_args *nfsargsp; 658 int *opflagsp; 659 int *retrycntp; 660 { 661 register char *cp, *nextcp; 662 int num; 663 char *nump; 664 665 for (cp = optarg; cp != NULL && *cp != '\0'; cp = nextcp) { 666 if ((nextcp = index(cp, ',')) != NULL) 667 *nextcp++ = '\0'; 668 if ((nump = index(cp, '=')) != NULL) { 669 *nump++ = '\0'; 670 num = atoi(nump); 671 } else 672 num = -1; 673 /* 674 * Just test for a string match and do it 675 */ 676 if (!strcmp(cp, "bg")) { 677 *opflagsp |= BGRND; 678 } else if (!strcmp(cp, "soft")) { 679 if (nfsargsp->flags & NFSMNT_SPONGY) 680 exclusive("soft, spongy"); 681 nfsargsp->flags |= NFSMNT_SOFT; 682 } else if (!strcmp(cp, "spongy")) { 683 if (nfsargsp->flags & NFSMNT_SOFT) 684 exclusive("soft, spongy"); 685 nfsargsp->flags |= NFSMNT_SPONGY; 686 } else if (!strcmp(cp, "compress")) { 687 nfsargsp->flags |= NFSMNT_COMPRESS; 688 } else if (!strcmp(cp, "intr")) { 689 nfsargsp->flags |= NFSMNT_INT; 690 } else if (!strcmp(cp, "tcp")) { 691 nfsargsp->sotype = SOCK_STREAM; 692 } else if (!strcmp(cp, "noconn")) { 693 nfsargsp->flags |= NFSMNT_NOCONN; 694 } else if (!strcmp(cp, "retry") && num > 0) { 695 *retrycntp = num; 696 } else if (!strcmp(cp, "rsize") && num > 0) { 697 nfsargsp->rsize = num; 698 nfsargsp->flags |= NFSMNT_RSIZE; 699 } else if (!strcmp(cp, "wsize") && num > 0) { 700 nfsargsp->wsize = num; 701 nfsargsp->flags |= NFSMNT_WSIZE; 702 } else if (!strcmp(cp, "timeo") && num > 0) { 703 nfsargsp->timeo = num; 704 nfsargsp->flags |= NFSMNT_TIMEO; 705 } else if (!strcmp(cp, "retrans") && num > 0) { 706 nfsargsp->retrans = num; 707 nfsargsp->flags |= NFSMNT_RETRANS; 708 } 709 } 710 if (nfsargsp->sotype == SOCK_DGRAM) { 711 if (nfsargsp->rsize > NFS_MAXDGRAMDATA) 712 nfsargsp->rsize = NFS_MAXDGRAMDATA; 713 if (nfsargsp->wsize > NFS_MAXDGRAMDATA) 714 nfsargsp->wsize = NFS_MAXDGRAMDATA; 715 } 716 } 717 718 char * 719 getnfsargs(spec, nfsargsp) 720 char *spec; 721 struct nfs_args *nfsargsp; 722 { 723 register CLIENT *clp; 724 struct hostent *hp; 725 static struct sockaddr_in saddr; 726 struct timeval pertry, try; 727 enum clnt_stat clnt_stat; 728 int so = RPC_ANYSOCK; 729 char *fsp, *hostp, *delimp; 730 u_short tport; 731 static struct nfhret nfhret; 732 static char nam[MNAMELEN + 1]; 733 char buf[MAXPATHLEN + 1]; 734 735 strncpy(buf, spec, MAXPATHLEN); 736 buf[MAXPATHLEN] = '\0'; 737 strncpy(nam, spec, MNAMELEN); 738 nam[MNAMELEN] = '\0'; 739 if ((delimp = index(buf, '@')) != NULL) { 740 hostp = delimp + 1; 741 fsp = buf; 742 } else if ((delimp = index(buf, ':')) != NULL) { 743 hostp = buf; 744 fsp = delimp + 1; 745 } else { 746 (void) fprintf(stderr, 747 "mount: No <host>:<dirpath> or <dirpath>@<host> spec\n"); 748 return (0); 749 } 750 *delimp = '\0'; 751 if ((hp = gethostbyname(hostp)) == NULL) { 752 (void) fprintf(stderr, "mount: Can't get net id for host\n"); 753 return (0); 754 } 755 bcopy(hp->h_addr, (caddr_t)&saddr.sin_addr, hp->h_length); 756 nfhret.stat = ETIMEDOUT; /* Mark not yet successful */ 757 while (retrycnt > 0) { 758 saddr.sin_family = AF_INET; 759 saddr.sin_port = htons(PMAPPORT); 760 if ((tport = pmap_getport(&saddr, RPCPROG_NFS, 761 NFS_VER2, IPPROTO_UDP)) == 0) { 762 if ((opflags & ISBGRND) == 0) 763 clnt_pcreateerror("NFS Portmap"); 764 } else { 765 saddr.sin_port = 0; 766 pertry.tv_sec = 10; 767 pertry.tv_usec = 0; 768 if ((clp = clntudp_create(&saddr, RPCPROG_MNT, 769 RPCMNT_VER1, pertry, &so)) == NULL) { 770 if ((opflags & ISBGRND) == 0) 771 clnt_pcreateerror("Cannot MNT PRC"); 772 } else { 773 clp->cl_auth = authunix_create_default(); 774 try.tv_sec = 10; 775 try.tv_usec = 0; 776 clnt_stat = clnt_call(clp, RPCMNT_MOUNT, 777 xdr_dir, fsp, xdr_fh, &nfhret, try); 778 if (clnt_stat != RPC_SUCCESS) { 779 if ((opflags & ISBGRND) == 0) 780 clnt_perror(clp, "Bad MNT RPC"); 781 } else { 782 auth_destroy(clp->cl_auth); 783 clnt_destroy(clp); 784 retrycnt = 0; 785 } 786 } 787 } 788 if (--retrycnt > 0) { 789 if (opflags & BGRND) { 790 opflags &= ~BGRND; 791 if (fork()) 792 return (0); 793 else 794 opflags |= ISBGRND; 795 } 796 sleep(10); 797 } 798 } 799 if (nfhret.stat) { 800 if (opflags & ISBGRND) 801 exit(1); 802 (void) fprintf(stderr, "Mount RPC error on %s: ", spec); 803 errno = nfhret.stat; 804 perror((char *)NULL); 805 return (0); 806 } 807 saddr.sin_port = htons(tport); 808 nfsargsp->addr = (struct sockaddr *) &saddr; 809 nfsargsp->fh = &nfhret.nfh; 810 nfsargsp->hostname = nam; 811 return ((caddr_t)nfsargsp); 812 } 813 814 /* 815 * xdr routines for mount rpc's 816 */ 817 xdr_dir(xdrsp, dirp) 818 XDR *xdrsp; 819 char *dirp; 820 { 821 return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN)); 822 } 823 824 xdr_fh(xdrsp, np) 825 XDR *xdrsp; 826 struct nfhret *np; 827 { 828 if (!xdr_u_long(xdrsp, &(np->stat))) 829 return (0); 830 if (np->stat) 831 return (1); 832 return (xdr_opaque(xdrsp, (caddr_t)&(np->nfh), NFSX_FH)); 833 } 834 #endif /* NFS */ 835
Indexes created Mon Sep 29 21:09:56 GMT 2025