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 #include <sys/mount.h> 65 #include <nfs/nfsproto.h> 66 #include <nfs/rpcv2.h> 67 #include <nfs/nfs.h> 68 #include <nfs/nfsnode.h> 69 70 #include <net/route.h> 71 #include <netinet/in.h> 72 #include <netinet/in_systm.h> 73 #include <netinet/ip.h> 74 #include <netinet/in_pcb.h> 75 76 #include <ctype.h> 77 #include <errno.h> 78 #include <fcntl.h> 79 #include <kvm.h> 80 #include <limits.h> 81 #include <nlist.h> 82 #include <paths.h> 83 #include <pwd.h> 84 #include <stdio.h> 85 #include <stdlib.h> 86 #include <string.h> 87 #include <unistd.h> 88 89 #define TEXT -1 90 #define CDIR -2 91 #define RDIR -3 92 #define TRACE -4 93 94 typedef struct devs { 95 struct devs *next; 96 long fsid; 97 ino_t ino; 98 char *name; 99 } DEVS; 100 DEVS *devs; 101 102 struct filestat { 103 long fsid; 104 long fileid; 105 mode_t mode; 106 u_long size; 107 dev_t rdev; 108 }; 109 110 #ifdef notdef 111 struct nlist nl[] = { 112 { "" }, 113 }; 114 #endif 115 116 int fsflg, /* show files on same filesystem as file(s) argument */ 117 pflg, /* show files open by a particular pid */ 118 uflg; /* show files open by a particular (effective) user */ 119 int checkfile; /* true if restricting to particular files or filesystems */ 120 int nflg; /* (numerical) display f.s. and rdev as dev_t */ 121 int vflg; /* display errors in locating kernel data objects etc... */ 122 123 #define dprintf if (vflg) fprintf 124 125 struct file **ofiles; /* buffer of pointers to file structures */ 126 int maxfiles; 127 #define ALLOC_OFILES(d) \ 128 if ((d) > maxfiles) { \ 129 free(ofiles); \ 130 ofiles = malloc((d) * sizeof(struct file *)); \ 131 if (ofiles == NULL) { \ 132 fprintf(stderr, "fstat: %s\n", strerror(errno)); \ 133 exit(1); \ 134 } \ 135 maxfiles = (d); \ 136 } 137 138 /* 139 * a kvm_read that returns true if everything is read 140 */ 141 #define KVM_READ(kaddr, paddr, len) \ 142 (kvm_read(kd, (u_long)(kaddr), (char *)(paddr), (len)) == (len)) 143 144 kvm_t *kd; 145 146 void dofiles __P((struct kinfo_proc *kp)); 147 void vtrans __P((struct vnode *vp, int i, int flag)); 148 int ufs_filestat __P((struct vnode *vp, struct filestat *fsp)); 149 int nfs_filestat __P((struct vnode *vp, struct filestat *fsp)); 150 char *getmnton __P((struct mount *m)); 151 void pipetrans __P((struct pipe *pi, int i, int flag)); 152 void socktrans __P((struct socket *sock, int i)); 153 void getinetproto __P((int number)); 154 int getfname __P((char *filename)); 155 void usage __P((void)); 156 157 158 int 159 main(argc, argv) 160 int argc; 161 char **argv; 162 { 163 register struct passwd *passwd; 164 struct kinfo_proc *p, *plast; 165 int arg, ch, what; 166 char *memf, *nlistf; 167 char buf[_POSIX2_LINE_MAX]; 168 int cnt; 169 170 arg = 0; 171 what = KERN_PROC_ALL; 172 nlistf = memf = NULL; 173 while ((ch = getopt(argc, argv, "fnp:u:vNM")) != -1) 174 switch((char)ch) { 175 case 'f': 176 fsflg = 1; 177 break; 178 case 'M': 179 memf = optarg; 180 break; 181 case 'N': 182 nlistf = optarg; 183 break; 184 case 'n': 185 nflg = 1; 186 break; 187 case 'p': 188 if (pflg++) 189 usage(); 190 if (!isdigit(*optarg)) { 191 fprintf(stderr, 192 "fstat: -p requires a process id\n"); 193 usage(); 194 } 195 what = KERN_PROC_PID; 196 arg = atoi(optarg); 197 break; 198 case 'u': 199 if (uflg++) 200 usage(); 201 if (!(passwd = getpwnam(optarg))) { 202 fprintf(stderr, "%s: unknown uid\n", 203 optarg); 204 exit(1); 205 } 206 what = KERN_PROC_UID; 207 arg = passwd->pw_uid; 208 break; 209 case 'v': 210 vflg = 1; 211 break; 212 case '?': 213 default: 214 usage(); 215 } 216 217 if (*(argv += optind)) { 218 for (; *argv; ++argv) { 219 if (getfname(*argv)) 220 checkfile = 1; 221 } 222 if (!checkfile) /* file(s) specified, but none accessable */ 223 exit(1); 224 } 225 226 ALLOC_OFILES(256); /* reserve space for file pointers */ 227 228 if (fsflg && !checkfile) { 229 /* -f with no files means use wd */ 230 if (getfname(".") == 0) 231 exit(1); 232 checkfile = 1; 233 } 234 235 /* 236 * Discard setgid privileges if not the running kernel so that bad 237 * guys can't print interesting stuff from kernel memory. 238 */ 239 if (nlistf != NULL || memf != NULL) 240 setgid(getgid()); 241 242 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) { 243 fprintf(stderr, "fstat: %s\n", buf); 244 exit(1); 245 } 246 #ifdef notdef 247 if (kvm_nlist(kd, nl) != 0) { 248 fprintf(stderr, "fstat: no namelist: %s\n", kvm_geterr(kd)); 249 exit(1); 250 } 251 #endif 252 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) { 253 fprintf(stderr, "fstat: %s\n", kvm_geterr(kd)); 254 exit(1); 255 } 256 if (nflg) 257 printf("%s", 258 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 259 else 260 printf("%s", 261 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 262 if (checkfile && fsflg == 0) 263 printf(" NAME\n"); 264 else 265 putchar('\n'); 266 267 for (plast = &p[cnt]; p < plast; ++p) { 268 if (p->kp_proc.p_stat == SZOMB) 269 continue; 270 dofiles(p); 271 } 272 exit(0); 273 } 274 275 char *Uname, *Comm; 276 int Pid; 277 278 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 279 switch(i) { \ 280 case TEXT: \ 281 printf(" text"); \ 282 break; \ 283 case CDIR: \ 284 printf(" wd"); \ 285 break; \ 286 case RDIR: \ 287 printf(" root"); \ 288 break; \ 289 case TRACE: \ 290 printf(" tr"); \ 291 break; \ 292 default: \ 293 printf(" %4d", i); \ 294 break; \ 295 } 296 297 /* 298 * print open files attributed to this process 299 */ 300 void 301 dofiles(kp) 302 struct kinfo_proc *kp; 303 { 304 int i, last; 305 struct file file; 306 struct filedesc0 filed0; 307 #define filed filed0.fd_fd 308 struct proc *p = &kp->kp_proc; 309 struct eproc *ep = &kp->kp_eproc; 310 311 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 312 Pid = p->p_pid; 313 Comm = p->p_comm; 314 315 if (p->p_fd == NULL) 316 return; 317 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 318 dprintf(stderr, "can't read filedesc at %x for pid %d\n", 319 p->p_fd, Pid); 320 return; 321 } 322 /* 323 * root directory vnode, if one 324 */ 325 if (filed.fd_rdir) 326 vtrans(filed.fd_rdir, RDIR, FREAD); 327 /* 328 * current working directory vnode 329 */ 330 vtrans(filed.fd_cdir, CDIR, FREAD); 331 /* 332 * ktrace vnode, if one 333 */ 334 if (p->p_tracep) 335 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 336 /* 337 * text vnode, if one 338 */ 339 if (p->p_textvp) 340 vtrans(p->p_textvp, TEXT, FREAD); 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 #ifdef DTYPE_PIPE 371 else if (file.f_type == DTYPE_PIPE) { 372 if (checkfile == 0) 373 pipetrans((struct pipe *)file.f_data, i, 374 file.f_flag); 375 } 376 #endif 377 else { 378 dprintf(stderr, 379 "unknown file type %d for file %d of pid %d\n", 380 file.f_type, i, Pid); 381 } 382 } 383 } 384 385 void 386 vtrans(vp, i, flag) 387 struct vnode *vp; 388 int i; 389 int flag; 390 { 391 struct vnode vn; 392 struct filestat fst; 393 char rw[3], mode[15]; 394 char *badtype = NULL, *filename, *getmnton(); 395 396 filename = badtype = NULL; 397 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 398 dprintf(stderr, "can't read vnode at %x for pid %d\n", 399 vp, Pid); 400 return; 401 } 402 if (vn.v_type == VNON || vn.v_tag == VT_NON) 403 badtype = "none"; 404 else if (vn.v_type == VBAD) 405 badtype = "bad"; 406 else 407 switch (vn.v_tag) { 408 case VT_UFS: 409 if (!ufs_filestat(&vn, &fst)) 410 badtype = "error"; 411 break; 412 case VT_MFS: 413 if (!ufs_filestat(&vn, &fst)) 414 badtype = "error"; 415 break; 416 case VT_NFS: 417 if (!nfs_filestat(&vn, &fst)) 418 badtype = "error"; 419 break; 420 default: { 421 static char unknown[10]; 422 sprintf(badtype = unknown, "?(%x)", vn.v_tag); 423 break;; 424 } 425 } 426 if (checkfile) { 427 int fsmatch = 0; 428 register DEVS *d; 429 430 if (badtype) 431 return; 432 for (d = devs; d != NULL; d = d->next) 433 if (d->fsid == fst.fsid) { 434 fsmatch = 1; 435 if (d->ino == fst.fileid) { 436 filename = d->name; 437 break; 438 } 439 } 440 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 441 return; 442 } 443 PREFIX(i); 444 if (badtype) { 445 (void)printf(" - - %10s -\n", badtype); 446 return; 447 } 448 if (nflg) 449 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 450 else 451 (void)printf(" %-8s", getmnton(vn.v_mount)); 452 if (nflg) 453 (void)sprintf(mode, "%o", fst.mode); 454 else 455 strmode(fst.mode, mode); 456 (void)printf(" %6d %10s", fst.fileid, mode); 457 switch (vn.v_type) { 458 case VBLK: 459 case VCHR: { 460 char *name; 461 462 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 463 S_IFCHR : S_IFBLK)) == NULL)) 464 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 465 else 466 printf(" %6s", name); 467 break; 468 } 469 default: 470 printf(" %6d", fst.size); 471 } 472 rw[0] = '\0'; 473 if (flag & FREAD) 474 strcat(rw, "r"); 475 if (flag & FWRITE) 476 strcat(rw, "w"); 477 printf(" %2s", rw); 478 if (filename && !fsflg) 479 printf(" %s", filename); 480 putchar('\n'); 481 } 482 483 int 484 ufs_filestat(vp, fsp) 485 struct vnode *vp; 486 struct filestat *fsp; 487 { 488 struct inode inode; 489 490 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 491 dprintf(stderr, "can't read inode at %x for pid %d\n", 492 VTOI(vp), Pid); 493 return 0; 494 } 495 fsp->fsid = inode.i_dev & 0xffff; 496 fsp->fileid = (long)inode.i_number; 497 fsp->mode = (mode_t)inode.i_mode; 498 fsp->size = (u_long)inode.i_size; 499 fsp->rdev = inode.i_rdev; 500 501 return 1; 502 } 503 504 int 505 nfs_filestat(vp, fsp) 506 struct vnode *vp; 507 struct filestat *fsp; 508 { 509 struct nfsnode nfsnode; 510 register mode_t mode; 511 512 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 513 dprintf(stderr, "can't read nfsnode at %x for pid %d\n", 514 VTONFS(vp), Pid); 515 return 0; 516 } 517 fsp->fsid = nfsnode.n_vattr.va_fsid; 518 fsp->fileid = nfsnode.n_vattr.va_fileid; 519 fsp->size = nfsnode.n_size; 520 fsp->rdev = nfsnode.n_vattr.va_rdev; 521 mode = (mode_t)nfsnode.n_vattr.va_mode; 522 switch (vp->v_type) { 523 case VREG: 524 mode |= S_IFREG; 525 break; 526 case VDIR: 527 mode |= S_IFDIR; 528 break; 529 case VBLK: 530 mode |= S_IFBLK; 531 break; 532 case VCHR: 533 mode |= S_IFCHR; 534 break; 535 case VLNK: 536 mode |= S_IFLNK; 537 break; 538 case VSOCK: 539 mode |= S_IFSOCK; 540 break; 541 case VFIFO: 542 mode |= S_IFIFO; 543 break; 544 }; 545 fsp->mode = mode; 546 547 return 1; 548 } 549 550 551 char * 552 getmnton(m) 553 struct mount *m; 554 { 555 static struct mount mount; 556 static struct mtab { 557 struct mtab *next; 558 struct mount *m; 559 char mntonname[MNAMELEN]; 560 } *mhead = NULL; 561 register struct mtab *mt; 562 563 for (mt = mhead; mt != NULL; mt = mt->next) 564 if (m == mt->m) 565 return (mt->mntonname); 566 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 567 fprintf(stderr, "can't read mount table at %x\n", m); 568 return (NULL); 569 } 570 if ((mt = malloc(sizeof (struct mtab))) == NULL) { 571 fprintf(stderr, "fstat: %s\n", strerror(errno)); 572 exit(1); 573 } 574 mt->m = m; 575 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 576 mt->next = mhead; 577 mhead = mt; 578 return (mt->mntonname); 579 } 580 581 void 582 pipetrans(pi, i, flag) 583 struct pipe *pi; 584 int i; 585 int flag; 586 { 587 struct pipe pip; 588 char rw[3]; 589 590 PREFIX(i); 591 592 /* fill in socket */ 593 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 594 dprintf(stderr, "can't read pipe at %x\n", pi); 595 goto bad; 596 } 597 598 printf("* pipe %8x <-> %8x", (int)pi, (int)pip.pipe_peer); 599 printf(" %6d", (int)pip.pipe_buffer.cnt); 600 rw[0] = '\0'; 601 if (flag & FREAD) 602 strcat(rw, "r"); 603 if (flag & FWRITE) 604 strcat(rw, "w"); 605 printf(" %2s", rw); 606 putchar('\n'); 607 return; 608 609 bad: 610 printf("* error\n"); 611 } 612 613 void 614 socktrans(sock, i) 615 struct socket *sock; 616 int i; 617 { 618 static char *stypename[] = { 619 "unused", /* 0 */ 620 "stream", /* 1 */ 621 "dgram", /* 2 */ 622 "raw", /* 3 */ 623 "rdm", /* 4 */ 624 "seqpak" /* 5 */ 625 }; 626 #define STYPEMAX 5 627 struct socket so; 628 struct protosw proto; 629 struct domain dom; 630 struct inpcb inpcb; 631 struct unpcb unpcb; 632 int len; 633 char dname[32], *strcpy(); 634 635 PREFIX(i); 636 637 /* fill in socket */ 638 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 639 dprintf(stderr, "can't read sock at %x\n", sock); 640 goto bad; 641 } 642 643 /* fill in protosw entry */ 644 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 645 dprintf(stderr, "can't read protosw at %x", so.so_proto); 646 goto bad; 647 } 648 649 /* fill in domain */ 650 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 651 dprintf(stderr, "can't read domain at %x\n", proto.pr_domain); 652 goto bad; 653 } 654 655 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 656 sizeof(dname) - 1)) < 0) { 657 dprintf(stderr, "can't read domain name at %x\n", 658 dom.dom_name); 659 dname[0] = '\0'; 660 } 661 else 662 dname[len] = '\0'; 663 664 if ((u_short)so.so_type > STYPEMAX) 665 printf("* %s ?%d", dname, so.so_type); 666 else 667 printf("* %s %s", dname, stypename[so.so_type]); 668 669 /* 670 * protocol specific formatting 671 * 672 * Try to find interesting things to print. For tcp, the interesting 673 * thing is the address of the tcpcb, for udp and others, just the 674 * inpcb (socket pcb). For unix domain, its the address of the socket 675 * pcb and the address of the connected pcb (if connected). Otherwise 676 * just print the protocol number and address of the socket itself. 677 * The idea is not to duplicate netstat, but to make available enough 678 * information for further analysis. 679 */ 680 switch(dom.dom_family) { 681 case AF_INET: 682 getinetproto(proto.pr_protocol); 683 if (proto.pr_protocol == IPPROTO_TCP ) { 684 if (so.so_pcb) { 685 if (kvm_read(kd, (u_long)so.so_pcb, 686 (char *)&inpcb, sizeof(struct inpcb)) 687 != sizeof(struct inpcb)) { 688 dprintf(stderr, 689 "can't read inpcb at %x\n", 690 so.so_pcb); 691 goto bad; 692 } 693 printf(" %x", (int)inpcb.inp_ppcb); 694 } 695 } 696 else if (so.so_pcb) 697 printf(" %x", (int)so.so_pcb); 698 break; 699 case AF_UNIX: 700 /* print address of pcb and connected pcb */ 701 if (so.so_pcb) { 702 printf(" %x", (int)so.so_pcb); 703 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 704 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 705 dprintf(stderr, "can't read unpcb at %x\n", 706 so.so_pcb); 707 goto bad; 708 } 709 if (unpcb.unp_conn) { 710 char shoconn[4], *cp; 711 712 cp = shoconn; 713 if (!(so.so_state & SS_CANTRCVMORE)) 714 *cp++ = '<'; 715 *cp++ = '-'; 716 if (!(so.so_state & SS_CANTSENDMORE)) 717 *cp++ = '>'; 718 *cp = '\0'; 719 printf(" %s %x", shoconn, 720 (int)unpcb.unp_conn); 721 } 722 } 723 break; 724 default: 725 /* print protocol number and socket address */ 726 printf(" %d %x", proto.pr_protocol, (int)sock); 727 } 728 printf("\n"); 729 return; 730 bad: 731 printf("* error\n"); 732 } 733 734 /* 735 * getinetproto -- 736 * print name of protocol number 737 */ 738 void 739 getinetproto(number) 740 int number; 741 { 742 char *cp; 743 744 switch(number) { 745 case IPPROTO_IP: 746 cp = "ip"; break; 747 case IPPROTO_ICMP: 748 cp ="icmp"; break; 749 case IPPROTO_GGP: 750 cp ="ggp"; break; 751 case IPPROTO_TCP: 752 cp ="tcp"; break; 753 case IPPROTO_EGP: 754 cp ="egp"; break; 755 case IPPROTO_PUP: 756 cp ="pup"; break; 757 case IPPROTO_UDP: 758 cp ="udp"; break; 759 case IPPROTO_IDP: 760 cp ="idp"; break; 761 case IPPROTO_RAW: 762 cp ="raw"; break; 763 default: 764 printf(" %d", number); 765 return; 766 } 767 printf(" %s", cp); 768 } 769 770 int 771 getfname(filename) 772 char *filename; 773 { 774 struct stat statbuf; 775 DEVS *cur; 776 777 if (stat(filename, &statbuf)) { 778 fprintf(stderr, "fstat: %s: %s\n", filename, strerror(errno)); 779 return(0); 780 } 781 if ((cur = malloc(sizeof(DEVS))) == NULL) { 782 fprintf(stderr, "fstat: %s\n", strerror(errno)); 783 exit(1); 784 } 785 cur->next = devs; 786 devs = cur; 787 788 cur->ino = statbuf.st_ino; 789 cur->fsid = statbuf.st_dev & 0xffff; 790 cur->name = filename; 791 return(1); 792 } 793 794 void 795 usage() 796 { 797 (void)fprintf(stderr, 798 "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 799 exit(1); 800 } 801