fstat.c revision 1.21
1 /* $NetBSD: fstat.c,v 1.21 1997/10/18 11:38:27 mrg Exp $ */ 2 3 /*- 4 * Copyright (c) 1988, 1993 5 * The Regents of the University of California. 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, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1988, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95"; 45 #else 46 static char *rcsid = "$NetBSD: fstat.c,v 1.21 1997/10/18 11:38:27 mrg Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/time.h> 52 #include <sys/proc.h> 53 #include <sys/user.h> 54 #include <sys/stat.h> 55 #include <sys/vnode.h> 56 #include <sys/socket.h> 57 #include <sys/socketvar.h> 58 #include <sys/domain.h> 59 #include <sys/protosw.h> 60 #include <sys/unpcb.h> 61 #include <sys/sysctl.h> 62 #include <sys/filedesc.h> 63 #define _KERNEL 64 #include <sys/file.h> 65 #include <ufs/ufs/quota.h> 66 #include <ufs/ufs/inode.h> 67 #undef _KERNEL 68 #define NFS 69 #include <sys/mount.h> 70 #include <nfs/nfsproto.h> 71 #include <nfs/rpcv2.h> 72 #include <nfs/nfs.h> 73 #include <nfs/nfsnode.h> 74 #undef NFS 75 76 #include <net/route.h> 77 #include <netinet/in.h> 78 #include <netinet/in_systm.h> 79 #include <netinet/ip.h> 80 #include <netinet/in_pcb.h> 81 82 #include <ctype.h> 83 #include <errno.h> 84 #include <kvm.h> 85 #include <limits.h> 86 #include <nlist.h> 87 #include <paths.h> 88 #include <pwd.h> 89 #include <stdio.h> 90 #include <stdlib.h> 91 #include <string.h> 92 93 #define TEXT -1 94 #define CDIR -2 95 #define RDIR -3 96 #define TRACE -4 97 98 typedef struct devs { 99 struct devs *next; 100 long fsid; 101 ino_t ino; 102 char *name; 103 } DEVS; 104 DEVS *devs; 105 106 struct filestat { 107 long fsid; 108 long fileid; 109 mode_t mode; 110 u_long size; 111 dev_t rdev; 112 }; 113 114 #ifdef notdef 115 struct nlist nl[] = { 116 { "" }, 117 }; 118 #endif 119 120 int fsflg, /* show files on same filesystem as file(s) argument */ 121 pflg, /* show files open by a particular pid */ 122 uflg; /* show files open by a particular (effective) user */ 123 int checkfile; /* true if restricting to particular files or filesystems */ 124 int nflg; /* (numerical) display f.s. and rdev as dev_t */ 125 int vflg; /* display errors in locating kernel data objects etc... */ 126 127 #define dprintf if (vflg) fprintf 128 129 struct file **ofiles; /* buffer of pointers to file structures */ 130 int maxfiles; 131 #define ALLOC_OFILES(d) \ 132 if ((d) > maxfiles) { \ 133 free(ofiles); \ 134 ofiles = malloc((d) * sizeof(struct file *)); \ 135 if (ofiles == NULL) { \ 136 fprintf(stderr, "fstat: %s\n", strerror(errno)); \ 137 exit(1); \ 138 } \ 139 maxfiles = (d); \ 140 } 141 142 /* 143 * a kvm_read that returns true if everything is read 144 */ 145 #define KVM_READ(kaddr, paddr, len) \ 146 (kvm_read(kd, (u_long)(kaddr), (char *)(paddr), (len)) == (len)) 147 148 kvm_t *kd; 149 150 int ufs_filestat(), ext2fs_filestat(), nfs_filestat(); 151 void dofiles(), getinetproto(), socktrans(); 152 void usage(), vtrans(); 153 154 main(argc, argv) 155 int argc; 156 char **argv; 157 { 158 extern char *optarg; 159 extern int optind; 160 register struct passwd *passwd; 161 struct kinfo_proc *p, *plast; 162 int arg, ch, what; 163 char *memf, *nlistf; 164 char buf[_POSIX2_LINE_MAX]; 165 int cnt; 166 167 arg = 0; 168 what = KERN_PROC_ALL; 169 nlistf = memf = NULL; 170 while ((ch = getopt(argc, argv, "fnp:u:vN:M:")) != EOF) 171 switch((char)ch) { 172 case 'f': 173 fsflg = 1; 174 break; 175 case 'M': 176 memf = optarg; 177 break; 178 case 'N': 179 nlistf = optarg; 180 break; 181 case 'n': 182 nflg = 1; 183 break; 184 case 'p': 185 if (pflg++) 186 usage(); 187 if (!isdigit(*optarg)) { 188 fprintf(stderr, 189 "fstat: -p requires a process id\n"); 190 usage(); 191 } 192 what = KERN_PROC_PID; 193 arg = atoi(optarg); 194 break; 195 case 'u': 196 if (uflg++) 197 usage(); 198 if (!(passwd = getpwnam(optarg))) { 199 fprintf(stderr, "%s: unknown uid\n", 200 optarg); 201 exit(1); 202 } 203 what = KERN_PROC_UID; 204 arg = passwd->pw_uid; 205 break; 206 case 'v': 207 vflg = 1; 208 break; 209 case '?': 210 default: 211 usage(); 212 } 213 214 if (*(argv += optind)) { 215 for (; *argv; ++argv) { 216 if (getfname(*argv)) 217 checkfile = 1; 218 } 219 if (!checkfile) /* file(s) specified, but none accessable */ 220 exit(1); 221 } 222 223 ALLOC_OFILES(256); /* reserve space for file pointers */ 224 225 if (fsflg && !checkfile) { 226 /* -f with no files means use wd */ 227 if (getfname(".") == 0) 228 exit(1); 229 checkfile = 1; 230 } 231 232 /* 233 * Discard setgid privileges if not the running kernel so that bad 234 * guys can't print interesting stuff from kernel memory. 235 */ 236 if (nlistf != NULL || memf != NULL) 237 setgid(getgid()); 238 239 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) { 240 fprintf(stderr, "fstat: %s\n", buf); 241 exit(1); 242 } 243 #ifdef notdef 244 if (kvm_nlist(kd, nl) != 0) { 245 fprintf(stderr, "fstat: no namelist: %s\n", kvm_geterr(kd)); 246 exit(1); 247 } 248 #endif 249 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) { 250 fprintf(stderr, "fstat: %s\n", kvm_geterr(kd)); 251 exit(1); 252 } 253 if (nflg) 254 printf("%s", 255 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 256 else 257 printf("%s", 258 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 259 if (checkfile && fsflg == 0) 260 printf(" NAME\n"); 261 else 262 putchar('\n'); 263 264 for (plast = &p[cnt]; p < plast; ++p) { 265 if (p->kp_proc.p_stat == SZOMB) 266 continue; 267 dofiles(p); 268 } 269 exit(0); 270 } 271 272 char *Uname, *Comm; 273 int Pid; 274 275 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 276 switch(i) { \ 277 case TEXT: \ 278 printf(" text"); \ 279 break; \ 280 case CDIR: \ 281 printf(" wd"); \ 282 break; \ 283 case RDIR: \ 284 printf(" root"); \ 285 break; \ 286 case TRACE: \ 287 printf(" tr"); \ 288 break; \ 289 default: \ 290 printf(" %4d", i); \ 291 break; \ 292 } 293 294 /* 295 * print open files attributed to this process 296 */ 297 void 298 dofiles(kp) 299 struct kinfo_proc *kp; 300 { 301 int i, last; 302 struct file file; 303 struct filedesc0 filed0; 304 #define filed filed0.fd_fd 305 struct proc *p = &kp->kp_proc; 306 struct eproc *ep = &kp->kp_eproc; 307 308 extern char *user_from_uid(); 309 310 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 311 Pid = p->p_pid; 312 Comm = p->p_comm; 313 314 if (p->p_fd == NULL) 315 return; 316 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 317 dprintf(stderr, "can't read filedesc at %x for pid %d\n", 318 p->p_fd, Pid); 319 return; 320 } 321 if (filed.fd_nfiles < 0 || filed.fd_lastfile >= filed.fd_nfiles || 322 filed.fd_freefile > filed.fd_lastfile + 1) { 323 dprintf(stderr, "filedesc corrupted at %x for pid %d\n", 324 p->p_fd, Pid); 325 return; 326 } 327 /* 328 * root directory vnode, if one 329 */ 330 if (filed.fd_rdir) 331 vtrans(filed.fd_rdir, RDIR, FREAD); 332 /* 333 * current working directory vnode 334 */ 335 vtrans(filed.fd_cdir, CDIR, FREAD); 336 /* 337 * ktrace vnode, if one 338 */ 339 if (p->p_tracep) 340 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 341 /* 342 * open files 343 */ 344 #define FPSIZE (sizeof (struct file *)) 345 ALLOC_OFILES(filed.fd_lastfile+1); 346 if (filed.fd_nfiles > NDFILE) { 347 if (!KVM_READ(filed.fd_ofiles, ofiles, 348 (filed.fd_lastfile+1) * FPSIZE)) { 349 dprintf(stderr, 350 "can't read file structures at %x for pid %d\n", 351 filed.fd_ofiles, Pid); 352 return; 353 } 354 } else 355 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE); 356 for (i = 0; i <= filed.fd_lastfile; i++) { 357 if (ofiles[i] == NULL) 358 continue; 359 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 360 dprintf(stderr, "can't read file %d at %x for pid %d\n", 361 i, ofiles[i], Pid); 362 continue; 363 } 364 if (file.f_type == DTYPE_VNODE) 365 vtrans((struct vnode *)file.f_data, i, file.f_flag); 366 else if (file.f_type == DTYPE_SOCKET) { 367 if (checkfile == 0) 368 socktrans((struct socket *)file.f_data, i); 369 } 370 else { 371 dprintf(stderr, 372 "unknown file type %d for file %d of pid %d\n", 373 file.f_type, i, Pid); 374 } 375 } 376 } 377 378 void 379 vtrans(vp, i, flag) 380 struct vnode *vp; 381 int i; 382 int flag; 383 { 384 struct vnode vn; 385 struct filestat fst; 386 char mode[15]; 387 char *badtype = NULL, *filename, *getmnton(); 388 389 filename = badtype = NULL; 390 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 391 dprintf(stderr, "can't read vnode at %x for pid %d\n", 392 vp, Pid); 393 return; 394 } 395 if (vn.v_type == VNON || vn.v_tag == VT_NON) 396 badtype = "none"; 397 else if (vn.v_type == VBAD) 398 badtype = "bad"; 399 else 400 switch (vn.v_tag) { 401 case VT_UFS: 402 if (!ufs_filestat(&vn, &fst)) 403 badtype = "error"; 404 break; 405 case VT_MFS: 406 if (!ufs_filestat(&vn, &fst)) 407 badtype = "error"; 408 break; 409 case VT_NFS: 410 if (!nfs_filestat(&vn, &fst)) 411 badtype = "error"; 412 break; 413 case VT_EXT2FS: 414 if (!ext2fs_filestat(&vn, &fst)) 415 badtype = "error"; 416 break; 417 default: { 418 static char unknown[10]; 419 (void)snprintf(badtype = unknown, sizeof unknown, 420 "?(%x)", vn.v_tag); 421 break;; 422 } 423 } 424 if (checkfile) { 425 int fsmatch = 0; 426 register DEVS *d; 427 428 if (badtype) 429 return; 430 for (d = devs; d != NULL; d = d->next) 431 if (d->fsid == fst.fsid) { 432 fsmatch = 1; 433 if (d->ino == fst.fileid) { 434 filename = d->name; 435 break; 436 } 437 } 438 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 439 return; 440 } 441 PREFIX(i); 442 if (badtype) { 443 (void)printf(" - - %10s -\n", badtype); 444 return; 445 } 446 if (nflg) 447 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 448 else 449 (void)printf(" %-8s", getmnton(vn.v_mount)); 450 if (nflg) 451 (void)snprintf(mode, sizeof mode, "%o", fst.mode); 452 else 453 strmode(fst.mode, mode); 454 (void)printf(" %6d %10s", fst.fileid, mode); 455 switch (vn.v_type) { 456 case VBLK: 457 case VCHR: { 458 char *name; 459 460 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 461 S_IFCHR : S_IFBLK)) == NULL)) 462 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 463 else 464 printf(" %6s", name); 465 break; 466 } 467 default: 468 printf(" %6d", fst.size); 469 } 470 putchar(' '); 471 if (flag & FREAD) 472 putchar('r'); 473 if (flag & FWRITE) 474 putchar('w'); 475 if (filename && !fsflg) 476 printf(" %s", filename); 477 putchar('\n'); 478 } 479 480 int 481 ufs_filestat(vp, fsp) 482 struct vnode *vp; 483 struct filestat *fsp; 484 { 485 struct inode inode; 486 487 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 488 dprintf(stderr, "can't read inode at %x for pid %d\n", 489 VTOI(vp), Pid); 490 return 0; 491 } 492 fsp->fsid = inode.i_dev & 0xffff; 493 fsp->fileid = (long)inode.i_number; 494 fsp->mode = (mode_t)inode.i_ffs_mode; 495 fsp->size = (u_long)inode.i_ffs_size; 496 fsp->rdev = inode.i_ffs_rdev; 497 498 return 1; 499 } 500 501 int 502 ext2fs_filestat(vp, fsp) 503 struct vnode *vp; 504 struct filestat *fsp; 505 { 506 struct inode inode; 507 508 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 509 dprintf(stderr, "can't read inode at %x for pid %d\n", 510 VTOI(vp), Pid); 511 return 0; 512 } 513 fsp->fsid = inode.i_dev & 0xffff; 514 fsp->fileid = (long)inode.i_number; 515 fsp->mode = (mode_t)inode.i_e2fs_mode; 516 fsp->size = (u_long)inode.i_e2fs_size; 517 fsp->rdev = 0; /* XXX */ 518 return 1; 519 } 520 521 int 522 nfs_filestat(vp, fsp) 523 struct vnode *vp; 524 struct filestat *fsp; 525 { 526 struct nfsnode nfsnode; 527 register mode_t mode; 528 529 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 530 dprintf(stderr, "can't read nfsnode at %x for pid %d\n", 531 VTONFS(vp), Pid); 532 return 0; 533 } 534 fsp->fsid = nfsnode.n_vattr.va_fsid; 535 fsp->fileid = nfsnode.n_vattr.va_fileid; 536 fsp->size = nfsnode.n_size; 537 fsp->rdev = nfsnode.n_vattr.va_rdev; 538 mode = (mode_t)nfsnode.n_vattr.va_mode; 539 switch (vp->v_type) { 540 case VREG: 541 mode |= S_IFREG; 542 break; 543 case VDIR: 544 mode |= S_IFDIR; 545 break; 546 case VBLK: 547 mode |= S_IFBLK; 548 break; 549 case VCHR: 550 mode |= S_IFCHR; 551 break; 552 case VLNK: 553 mode |= S_IFLNK; 554 break; 555 case VSOCK: 556 mode |= S_IFSOCK; 557 break; 558 case VFIFO: 559 mode |= S_IFIFO; 560 break; 561 }; 562 fsp->mode = mode; 563 564 return 1; 565 } 566 567 568 char * 569 getmnton(m) 570 struct mount *m; 571 { 572 static struct mount mount; 573 static struct mtab { 574 struct mtab *next; 575 struct mount *m; 576 char mntonname[MNAMELEN]; 577 } *mhead = NULL; 578 register struct mtab *mt; 579 580 for (mt = mhead; mt != NULL; mt = mt->next) 581 if (m == mt->m) 582 return (mt->mntonname); 583 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 584 fprintf(stderr, "can't read mount table at %x\n", m); 585 return (NULL); 586 } 587 if ((mt = malloc(sizeof (struct mtab))) == NULL) { 588 fprintf(stderr, "fstat: %s\n", strerror(errno)); 589 exit(1); 590 } 591 mt->m = m; 592 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 593 mt->next = mhead; 594 mhead = mt; 595 return (mt->mntonname); 596 } 597 598 void 599 socktrans(sock, i) 600 struct socket *sock; 601 int i; 602 { 603 static char *stypename[] = { 604 "unused", /* 0 */ 605 "stream", /* 1 */ 606 "dgram", /* 2 */ 607 "raw", /* 3 */ 608 "rdm", /* 4 */ 609 "seqpak" /* 5 */ 610 }; 611 #define STYPEMAX 5 612 struct socket so; 613 struct protosw proto; 614 struct domain dom; 615 struct inpcb inpcb; 616 struct unpcb unpcb; 617 int len; 618 char dname[32]; 619 620 PREFIX(i); 621 622 /* fill in socket */ 623 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 624 dprintf(stderr, "can't read sock at %x\n", sock); 625 goto bad; 626 } 627 628 /* fill in protosw entry */ 629 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 630 dprintf(stderr, "can't read protosw at %x", so.so_proto); 631 goto bad; 632 } 633 634 /* fill in domain */ 635 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 636 dprintf(stderr, "can't read domain at %x\n", proto.pr_domain); 637 goto bad; 638 } 639 640 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 641 sizeof(dname) - 1)) < 0) { 642 dprintf(stderr, "can't read domain name at %x\n", 643 dom.dom_name); 644 dname[0] = '\0'; 645 } 646 else 647 dname[len] = '\0'; 648 649 if ((u_short)so.so_type > STYPEMAX) 650 printf("* %s ?%d", dname, so.so_type); 651 else 652 printf("* %s %s", dname, stypename[so.so_type]); 653 654 /* 655 * protocol specific formatting 656 * 657 * Try to find interesting things to print. For tcp, the interesting 658 * thing is the address of the tcpcb, for udp and others, just the 659 * inpcb (socket pcb). For unix domain, its the address of the socket 660 * pcb and the address of the connected pcb (if connected). Otherwise 661 * just print the protocol number and address of the socket itself. 662 * The idea is not to duplicate netstat, but to make available enough 663 * information for further analysis. 664 */ 665 switch(dom.dom_family) { 666 case AF_INET: 667 getinetproto(proto.pr_protocol); 668 if (proto.pr_protocol == IPPROTO_TCP ) { 669 if (so.so_pcb) { 670 if (kvm_read(kd, (u_long)so.so_pcb, 671 (char *)&inpcb, sizeof(struct inpcb)) 672 != sizeof(struct inpcb)) { 673 dprintf(stderr, 674 "can't read inpcb at %x\n", 675 so.so_pcb); 676 goto bad; 677 } 678 printf(" %lx", (long)inpcb.inp_ppcb); 679 } 680 } 681 else if (so.so_pcb) 682 printf(" %lx", (long)so.so_pcb); 683 break; 684 case AF_UNIX: 685 /* print address of pcb and connected pcb */ 686 if (so.so_pcb) { 687 printf(" %lx", (long)so.so_pcb); 688 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 689 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 690 dprintf(stderr, "can't read unpcb at %x\n", 691 so.so_pcb); 692 goto bad; 693 } 694 if (unpcb.unp_conn) { 695 char shoconn[4], *cp; 696 697 cp = shoconn; 698 if (!(so.so_state & SS_CANTRCVMORE)) 699 *cp++ = '<'; 700 *cp++ = '-'; 701 if (!(so.so_state & SS_CANTSENDMORE)) 702 *cp++ = '>'; 703 *cp = '\0'; 704 printf(" %s %lx", shoconn, 705 (long)unpcb.unp_conn); 706 } 707 } 708 break; 709 default: 710 /* print protocol number and socket address */ 711 printf(" %d %lx", proto.pr_protocol, (long)sock); 712 } 713 printf("\n"); 714 return; 715 bad: 716 printf("* error\n"); 717 } 718 719 /* 720 * getinetproto -- 721 * print name of protocol number 722 */ 723 void 724 getinetproto(number) 725 int number; 726 { 727 char *cp; 728 729 switch(number) { 730 case IPPROTO_IP: 731 cp = "ip"; break; 732 case IPPROTO_ICMP: 733 cp ="icmp"; break; 734 case IPPROTO_GGP: 735 cp ="ggp"; break; 736 case IPPROTO_TCP: 737 cp ="tcp"; break; 738 case IPPROTO_EGP: 739 cp ="egp"; break; 740 case IPPROTO_PUP: 741 cp ="pup"; break; 742 case IPPROTO_UDP: 743 cp ="udp"; break; 744 case IPPROTO_IDP: 745 cp ="idp"; break; 746 case IPPROTO_RAW: 747 cp ="raw"; break; 748 default: 749 printf(" %d", number); 750 return; 751 } 752 printf(" %s", cp); 753 } 754 755 getfname(filename) 756 char *filename; 757 { 758 struct stat statbuf; 759 DEVS *cur; 760 761 if (stat(filename, &statbuf)) { 762 fprintf(stderr, "fstat: %s: %s\n", filename, strerror(errno)); 763 return(0); 764 } 765 if ((cur = malloc(sizeof(DEVS))) == NULL) { 766 fprintf(stderr, "fstat: %s\n", strerror(errno)); 767 exit(1); 768 } 769 cur->next = devs; 770 devs = cur; 771 772 cur->ino = statbuf.st_ino; 773 cur->fsid = statbuf.st_dev & 0xffff; 774 cur->name = filename; 775 return(1); 776 } 777 778 void 779 usage() 780 { 781 (void)fprintf(stderr, 782 "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 783 exit(1); 784 } 785
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