1 /*- 2 * Copyright (c) 1988, 1993 3 * The Regents of the University of California. 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 static char copyright[] = 36 "@(#) Copyright (c) 1988, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95"; 42 #endif /* not lint */ 43 44 #include <sys/param.h> 45 #include <sys/time.h> 46 #include <sys/proc.h> 47 #include <sys/user.h> 48 #include <sys/stat.h> 49 #include <sys/vnode.h> 50 #include <sys/socket.h> 51 #include <sys/socketvar.h> 52 #include <sys/domain.h> 53 #include <sys/protosw.h> 54 #include <sys/unpcb.h> 55 #include <sys/sysctl.h> 56 #include <sys/filedesc.h> 57 #include <sys/queue.h> 58 #include <sys/pipe.h> 59 #define KERNEL 60 #include <sys/file.h> 61 #include <ufs/ufs/quota.h> 62 #include <ufs/ufs/inode.h> 63 #undef KERNEL 64 #define NFS 65 #include <sys/mount.h> 66 #include <nfs/nfsproto.h> 67 #include <nfs/rpcv2.h> 68 #define KERNEL 69 #include <nfs/nfs.h> 70 #undef KERNEL 71 #include <nfs/nfsnode.h> 72 #undef NFS 73 74 #include <net/route.h> 75 #include <netinet/in.h> 76 #include <netinet/in_systm.h> 77 #include <netinet/ip.h> 78 #include <netinet/in_pcb.h> 79 80 #include <ctype.h> 81 #include <errno.h> 82 #include <fcntl.h> 83 #include <kvm.h> 84 #include <limits.h> 85 #include <nlist.h> 86 #include <paths.h> 87 #include <pwd.h> 88 #include <stdio.h> 89 #include <stdlib.h> 90 #include <string.h> 91 #include <unistd.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 void dofiles __P((struct kinfo_proc *kp)); 151 void vtrans __P((struct vnode *vp, int i, int flag)); 152 int ufs_filestat __P((struct vnode *vp, struct filestat *fsp)); 153 int nfs_filestat __P((struct vnode *vp, struct filestat *fsp)); 154 char *getmnton __P((struct mount *m)); 155 void pipetrans __P((struct pipe *pi, int i, int flag)); 156 void socktrans __P((struct socket *sock, int i)); 157 void getinetproto __P((int number)); 158 int getfname __P((char *filename)); 159 void usage __P((void)); 160 161 162 int 163 main(argc, argv) 164 int argc; 165 char **argv; 166 { 167 register struct passwd *passwd; 168 struct kinfo_proc *p, *plast; 169 int arg, ch, what; 170 char *memf, *nlistf; 171 char buf[_POSIX2_LINE_MAX]; 172 int cnt; 173 174 arg = 0; 175 what = KERN_PROC_ALL; 176 nlistf = memf = NULL; 177 while ((ch = getopt(argc, argv, "fnp:u:vNM")) != EOF) 178 switch((char)ch) { 179 case 'f': 180 fsflg = 1; 181 break; 182 case 'M': 183 memf = optarg; 184 break; 185 case 'N': 186 nlistf = optarg; 187 break; 188 case 'n': 189 nflg = 1; 190 break; 191 case 'p': 192 if (pflg++) 193 usage(); 194 if (!isdigit(*optarg)) { 195 fprintf(stderr, 196 "fstat: -p requires a process id\n"); 197 usage(); 198 } 199 what = KERN_PROC_PID; 200 arg = atoi(optarg); 201 break; 202 case 'u': 203 if (uflg++) 204 usage(); 205 if (!(passwd = getpwnam(optarg))) { 206 fprintf(stderr, "%s: unknown uid\n", 207 optarg); 208 exit(1); 209 } 210 what = KERN_PROC_UID; 211 arg = passwd->pw_uid; 212 break; 213 case 'v': 214 vflg = 1; 215 break; 216 case '?': 217 default: 218 usage(); 219 } 220 221 if (*(argv += optind)) { 222 for (; *argv; ++argv) { 223 if (getfname(*argv)) 224 checkfile = 1; 225 } 226 if (!checkfile) /* file(s) specified, but none accessable */ 227 exit(1); 228 } 229 230 ALLOC_OFILES(256); /* reserve space for file pointers */ 231 232 if (fsflg && !checkfile) { 233 /* -f with no files means use wd */ 234 if (getfname(".") == 0) 235 exit(1); 236 checkfile = 1; 237 } 238 239 /* 240 * Discard setgid privileges if not the running kernel so that bad 241 * guys can't print interesting stuff from kernel memory. 242 */ 243 if (nlistf != NULL || memf != NULL) 244 setgid(getgid()); 245 246 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) { 247 fprintf(stderr, "fstat: %s\n", buf); 248 exit(1); 249 } 250 #ifdef notdef 251 if (kvm_nlist(kd, nl) != 0) { 252 fprintf(stderr, "fstat: no namelist: %s\n", kvm_geterr(kd)); 253 exit(1); 254 } 255 #endif 256 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) { 257 fprintf(stderr, "fstat: %s\n", kvm_geterr(kd)); 258 exit(1); 259 } 260 if (nflg) 261 printf("%s", 262 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 263 else 264 printf("%s", 265 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 266 if (checkfile && fsflg == 0) 267 printf(" NAME\n"); 268 else 269 putchar('\n'); 270 271 for (plast = &p[cnt]; p < plast; ++p) { 272 if (p->kp_proc.p_stat == SZOMB) 273 continue; 274 dofiles(p); 275 } 276 exit(0); 277 } 278 279 char *Uname, *Comm; 280 int Pid; 281 282 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 283 switch(i) { \ 284 case TEXT: \ 285 printf(" text"); \ 286 break; \ 287 case CDIR: \ 288 printf(" wd"); \ 289 break; \ 290 case RDIR: \ 291 printf(" root"); \ 292 break; \ 293 case TRACE: \ 294 printf(" tr"); \ 295 break; \ 296 default: \ 297 printf(" %4d", i); \ 298 break; \ 299 } 300 301 /* 302 * print open files attributed to this process 303 */ 304 void 305 dofiles(kp) 306 struct kinfo_proc *kp; 307 { 308 int i, last; 309 struct file file; 310 struct filedesc0 filed0; 311 #define filed filed0.fd_fd 312 struct proc *p = &kp->kp_proc; 313 struct eproc *ep = &kp->kp_eproc; 314 315 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 316 Pid = p->p_pid; 317 Comm = p->p_comm; 318 319 if (p->p_fd == NULL) 320 return; 321 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 322 dprintf(stderr, "can't read filedesc at %x for pid %d\n", 323 p->p_fd, Pid); 324 return; 325 } 326 /* 327 * root directory vnode, if one 328 */ 329 if (filed.fd_rdir) 330 vtrans(filed.fd_rdir, RDIR, FREAD); 331 /* 332 * current working directory vnode 333 */ 334 vtrans(filed.fd_cdir, CDIR, FREAD); 335 /* 336 * ktrace vnode, if one 337 */ 338 if (p->p_tracep) 339 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 340 /* 341 * text vnode, if one 342 */ 343 if (p->p_textvp) 344 vtrans(p->p_textvp, TEXT, FREAD); 345 /* 346 * open files 347 */ 348 #define FPSIZE (sizeof (struct file *)) 349 ALLOC_OFILES(filed.fd_lastfile+1); 350 if (filed.fd_nfiles > NDFILE) { 351 if (!KVM_READ(filed.fd_ofiles, ofiles, 352 (filed.fd_lastfile+1) * FPSIZE)) { 353 dprintf(stderr, 354 "can't read file structures at %x for pid %d\n", 355 filed.fd_ofiles, Pid); 356 return; 357 } 358 } else 359 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE); 360 for (i = 0; i <= filed.fd_lastfile; i++) { 361 if (ofiles[i] == NULL) 362 continue; 363 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 364 dprintf(stderr, "can't read file %d at %x for pid %d\n", 365 i, ofiles[i], Pid); 366 continue; 367 } 368 if (file.f_type == DTYPE_VNODE) 369 vtrans((struct vnode *)file.f_data, i, file.f_flag); 370 else if (file.f_type == DTYPE_SOCKET) { 371 if (checkfile == 0) 372 socktrans((struct socket *)file.f_data, i); 373 } 374 #ifdef DTYPE_PIPE 375 else if (file.f_type == DTYPE_PIPE) { 376 if (checkfile == 0) 377 pipetrans((struct pipe *)file.f_data, i, 378 file.f_flag); 379 } 380 #endif 381 else { 382 dprintf(stderr, 383 "unknown file type %d for file %d of pid %d\n", 384 file.f_type, i, Pid); 385 } 386 } 387 } 388 389 void 390 vtrans(vp, i, flag) 391 struct vnode *vp; 392 int i; 393 int flag; 394 { 395 struct vnode vn; 396 struct filestat fst; 397 char rw[3], mode[15]; 398 char *badtype = NULL, *filename, *getmnton(); 399 400 filename = badtype = NULL; 401 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 402 dprintf(stderr, "can't read vnode at %x for pid %d\n", 403 vp, Pid); 404 return; 405 } 406 if (vn.v_type == VNON || vn.v_tag == VT_NON) 407 badtype = "none"; 408 else if (vn.v_type == VBAD) 409 badtype = "bad"; 410 else 411 switch (vn.v_tag) { 412 case VT_UFS: 413 if (!ufs_filestat(&vn, &fst)) 414 badtype = "error"; 415 break; 416 case VT_MFS: 417 if (!ufs_filestat(&vn, &fst)) 418 badtype = "error"; 419 break; 420 case VT_NFS: 421 if (!nfs_filestat(&vn, &fst)) 422 badtype = "error"; 423 break; 424 default: { 425 static char unknown[10]; 426 sprintf(badtype = unknown, "?(%x)", vn.v_tag); 427 break;; 428 } 429 } 430 if (checkfile) { 431 int fsmatch = 0; 432 register DEVS *d; 433 434 if (badtype) 435 return; 436 for (d = devs; d != NULL; d = d->next) 437 if (d->fsid == fst.fsid) { 438 fsmatch = 1; 439 if (d->ino == fst.fileid) { 440 filename = d->name; 441 break; 442 } 443 } 444 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 445 return; 446 } 447 PREFIX(i); 448 if (badtype) { 449 (void)printf(" - - %10s -\n", badtype); 450 return; 451 } 452 if (nflg) 453 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 454 else 455 (void)printf(" %-8s", getmnton(vn.v_mount)); 456 if (nflg) 457 (void)sprintf(mode, "%o", fst.mode); 458 else 459 strmode(fst.mode, mode); 460 (void)printf(" %6d %10s", fst.fileid, mode); 461 switch (vn.v_type) { 462 case VBLK: 463 case VCHR: { 464 char *name; 465 466 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 467 S_IFCHR : S_IFBLK)) == NULL)) 468 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 469 else 470 printf(" %6s", name); 471 break; 472 } 473 default: 474 printf(" %6d", fst.size); 475 } 476 rw[0] = '\0'; 477 if (flag & FREAD) 478 strcat(rw, "r"); 479 if (flag & FWRITE) 480 strcat(rw, "w"); 481 printf(" %2s", rw); 482 if (filename && !fsflg) 483 printf(" %s", filename); 484 putchar('\n'); 485 } 486 487 int 488 ufs_filestat(vp, fsp) 489 struct vnode *vp; 490 struct filestat *fsp; 491 { 492 struct inode inode; 493 494 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 495 dprintf(stderr, "can't read inode at %x for pid %d\n", 496 VTOI(vp), Pid); 497 return 0; 498 } 499 fsp->fsid = inode.i_dev & 0xffff; 500 fsp->fileid = (long)inode.i_number; 501 fsp->mode = (mode_t)inode.i_mode; 502 fsp->size = (u_long)inode.i_size; 503 fsp->rdev = inode.i_rdev; 504 505 return 1; 506 } 507 508 int 509 nfs_filestat(vp, fsp) 510 struct vnode *vp; 511 struct filestat *fsp; 512 { 513 struct nfsnode nfsnode; 514 register mode_t mode; 515 516 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 517 dprintf(stderr, "can't read nfsnode at %x for pid %d\n", 518 VTONFS(vp), Pid); 519 return 0; 520 } 521 fsp->fsid = nfsnode.n_vattr.va_fsid; 522 fsp->fileid = nfsnode.n_vattr.va_fileid; 523 fsp->size = nfsnode.n_size; 524 fsp->rdev = nfsnode.n_vattr.va_rdev; 525 mode = (mode_t)nfsnode.n_vattr.va_mode; 526 switch (vp->v_type) { 527 case VREG: 528 mode |= S_IFREG; 529 break; 530 case VDIR: 531 mode |= S_IFDIR; 532 break; 533 case VBLK: 534 mode |= S_IFBLK; 535 break; 536 case VCHR: 537 mode |= S_IFCHR; 538 break; 539 case VLNK: 540 mode |= S_IFLNK; 541 break; 542 case VSOCK: 543 mode |= S_IFSOCK; 544 break; 545 case VFIFO: 546 mode |= S_IFIFO; 547 break; 548 }; 549 fsp->mode = mode; 550 551 return 1; 552 } 553 554 555 char * 556 getmnton(m) 557 struct mount *m; 558 { 559 static struct mount mount; 560 static struct mtab { 561 struct mtab *next; 562 struct mount *m; 563 char mntonname[MNAMELEN]; 564 } *mhead = NULL; 565 register struct mtab *mt; 566 567 for (mt = mhead; mt != NULL; mt = mt->next) 568 if (m == mt->m) 569 return (mt->mntonname); 570 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 571 fprintf(stderr, "can't read mount table at %x\n", m); 572 return (NULL); 573 } 574 if ((mt = malloc(sizeof (struct mtab))) == NULL) { 575 fprintf(stderr, "fstat: %s\n", strerror(errno)); 576 exit(1); 577 } 578 mt->m = m; 579 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 580 mt->next = mhead; 581 mhead = mt; 582 return (mt->mntonname); 583 } 584 585 void 586 pipetrans(pi, i, flag) 587 struct pipe *pi; 588 int i; 589 int flag; 590 { 591 struct pipe pip; 592 char rw[3]; 593 594 PREFIX(i); 595 596 /* fill in socket */ 597 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 598 dprintf(stderr, "can't read pipe at %x\n", pi); 599 goto bad; 600 } 601 602 printf("* pipe %8x <-> %8x", (int)pi, (int)pip.pipe_peer); 603 printf(" %6d", (int)pip.pipe_buffer.cnt); 604 rw[0] = '\0'; 605 if (flag & FREAD) 606 strcat(rw, "r"); 607 if (flag & FWRITE) 608 strcat(rw, "w"); 609 printf(" %2s", rw); 610 putchar('\n'); 611 return; 612 613 bad: 614 printf("* error\n"); 615 } 616 617 void 618 socktrans(sock, i) 619 struct socket *sock; 620 int i; 621 { 622 static char *stypename[] = { 623 "unused", /* 0 */ 624 "stream", /* 1 */ 625 "dgram", /* 2 */ 626 "raw", /* 3 */ 627 "rdm", /* 4 */ 628 "seqpak" /* 5 */ 629 }; 630 #define STYPEMAX 5 631 struct socket so; 632 struct protosw proto; 633 struct domain dom; 634 struct inpcb inpcb; 635 struct unpcb unpcb; 636 int len; 637 char dname[32], *strcpy(); 638 639 PREFIX(i); 640 641 /* fill in socket */ 642 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 643 dprintf(stderr, "can't read sock at %x\n", sock); 644 goto bad; 645 } 646 647 /* fill in protosw entry */ 648 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 649 dprintf(stderr, "can't read protosw at %x", so.so_proto); 650 goto bad; 651 } 652 653 /* fill in domain */ 654 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 655 dprintf(stderr, "can't read domain at %x\n", proto.pr_domain); 656 goto bad; 657 } 658 659 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 660 sizeof(dname) - 1)) < 0) { 661 dprintf(stderr, "can't read domain name at %x\n", 662 dom.dom_name); 663 dname[0] = '\0'; 664 } 665 else 666 dname[len] = '\0'; 667 668 if ((u_short)so.so_type > STYPEMAX) 669 printf("* %s ?%d", dname, so.so_type); 670 else 671 printf("* %s %s", dname, stypename[so.so_type]); 672 673 /* 674 * protocol specific formatting 675 * 676 * Try to find interesting things to print. For tcp, the interesting 677 * thing is the address of the tcpcb, for udp and others, just the 678 * inpcb (socket pcb). For unix domain, its the address of the socket 679 * pcb and the address of the connected pcb (if connected). Otherwise 680 * just print the protocol number and address of the socket itself. 681 * The idea is not to duplicate netstat, but to make available enough 682 * information for further analysis. 683 */ 684 switch(dom.dom_family) { 685 case AF_INET: 686 getinetproto(proto.pr_protocol); 687 if (proto.pr_protocol == IPPROTO_TCP ) { 688 if (so.so_pcb) { 689 if (kvm_read(kd, (u_long)so.so_pcb, 690 (char *)&inpcb, sizeof(struct inpcb)) 691 != sizeof(struct inpcb)) { 692 dprintf(stderr, 693 "can't read inpcb at %x\n", 694 so.so_pcb); 695 goto bad; 696 } 697 printf(" %x", (int)inpcb.inp_ppcb); 698 } 699 } 700 else if (so.so_pcb) 701 printf(" %x", (int)so.so_pcb); 702 break; 703 case AF_UNIX: 704 /* print address of pcb and connected pcb */ 705 if (so.so_pcb) { 706 printf(" %x", (int)so.so_pcb); 707 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 708 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 709 dprintf(stderr, "can't read unpcb at %x\n", 710 so.so_pcb); 711 goto bad; 712 } 713 if (unpcb.unp_conn) { 714 char shoconn[4], *cp; 715 716 cp = shoconn; 717 if (!(so.so_state & SS_CANTRCVMORE)) 718 *cp++ = '<'; 719 *cp++ = '-'; 720 if (!(so.so_state & SS_CANTSENDMORE)) 721 *cp++ = '>'; 722 *cp = '\0'; 723 printf(" %s %x", shoconn, 724 (int)unpcb.unp_conn); 725 } 726 } 727 break; 728 default: 729 /* print protocol number and socket address */ 730 printf(" %d %x", proto.pr_protocol, (int)sock); 731 } 732 printf("\n"); 733 return; 734 bad: 735 printf("* error\n"); 736 } 737 738 /* 739 * getinetproto -- 740 * print name of protocol number 741 */ 742 void 743 getinetproto(number) 744 int number; 745 { 746 char *cp; 747 748 switch(number) { 749 case IPPROTO_IP: 750 cp = "ip"; break; 751 case IPPROTO_ICMP: 752 cp ="icmp"; break; 753 case IPPROTO_GGP: 754 cp ="ggp"; break; 755 case IPPROTO_TCP: 756 cp ="tcp"; break; 757 case IPPROTO_EGP: 758 cp ="egp"; break; 759 case IPPROTO_PUP: 760 cp ="pup"; break; 761 case IPPROTO_UDP: 762 cp ="udp"; break; 763 case IPPROTO_IDP: 764 cp ="idp"; break; 765 case IPPROTO_RAW: 766 cp ="raw"; break; 767 default: 768 printf(" %d", number); 769 return; 770 } 771 printf(" %s", cp); 772 } 773 774 int 775 getfname(filename) 776 char *filename; 777 { 778 struct stat statbuf; 779 DEVS *cur; 780 781 if (stat(filename, &statbuf)) { 782 fprintf(stderr, "fstat: %s: %s\n", filename, strerror(errno)); 783 return(0); 784 } 785 if ((cur = malloc(sizeof(DEVS))) == NULL) { 786 fprintf(stderr, "fstat: %s\n", strerror(errno)); 787 exit(1); 788 } 789 cur->next = devs; 790 devs = cur; 791 792 cur->ino = statbuf.st_ino; 793 cur->fsid = statbuf.st_dev & 0xffff; 794 cur->name = filename; 795 return(1); 796 } 797 798 void 799 usage() 800 { 801 (void)fprintf(stderr, 802 "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 803 exit(1); 804 } 805