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 8.1 (Berkeley) 6/6/93"; 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 #include <nfs/nfs.h> 69 #include <nfs/nfsnode.h> 70 #undef NFS 71 72 #include <net/route.h> 73 #include <netinet/in.h> 74 #include <netinet/in_systm.h> 75 #include <netinet/ip.h> 76 #include <netinet/in_pcb.h> 77 78 #include <ctype.h> 79 #include <errno.h> 80 #include <fcntl.h> 81 #include <kvm.h> 82 #include <nlist.h> 83 #include <paths.h> 84 #include <pwd.h> 85 #include <stdio.h> 86 #include <stdlib.h> 87 #include <string.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 int cnt; 168 169 arg = 0; 170 what = KERN_PROC_ALL; 171 nlistf = memf = NULL; 172 while ((ch = getopt(argc, argv, "fnp:u:vNM")) != EOF) 173 switch((char)ch) { 174 case 'f': 175 fsflg = 1; 176 break; 177 case 'M': 178 memf = optarg; 179 break; 180 case 'N': 181 nlistf = optarg; 182 break; 183 case 'n': 184 nflg = 1; 185 break; 186 case 'p': 187 if (pflg++) 188 usage(); 189 if (!isdigit(*optarg)) { 190 fprintf(stderr, 191 "fstat: -p requires a process id\n"); 192 usage(); 193 } 194 what = KERN_PROC_PID; 195 arg = atoi(optarg); 196 break; 197 case 'u': 198 if (uflg++) 199 usage(); 200 if (!(passwd = getpwnam(optarg))) { 201 fprintf(stderr, "%s: unknown uid\n", 202 optarg); 203 exit(1); 204 } 205 what = KERN_PROC_UID; 206 arg = passwd->pw_uid; 207 break; 208 case 'v': 209 vflg = 1; 210 break; 211 case '?': 212 default: 213 usage(); 214 } 215 216 if (*(argv += optind)) { 217 for (; *argv; ++argv) { 218 if (getfname(*argv)) 219 checkfile = 1; 220 } 221 if (!checkfile) /* file(s) specified, but none accessable */ 222 exit(1); 223 } 224 225 ALLOC_OFILES(256); /* reserve space for file pointers */ 226 227 if (fsflg && !checkfile) { 228 /* -f with no files means use wd */ 229 if (getfname(".") == 0) 230 exit(1); 231 checkfile = 1; 232 } 233 234 /* 235 * Discard setgid privileges if not the running kernel so that bad 236 * guys can't print interesting stuff from kernel memory. 237 */ 238 if (nlistf != NULL || memf != NULL) 239 setgid(getgid()); 240 241 if ((kd = kvm_open(nlistf, memf, NULL, O_RDONLY, NULL)) == NULL) { 242 fprintf(stderr, "fstat: %s\n", kvm_geterr(kd)); 243 exit(1); 244 } 245 #ifdef notdef 246 if (kvm_nlist(kd, nl) != 0) { 247 fprintf(stderr, "fstat: no namelist: %s\n", kvm_geterr(kd)); 248 exit(1); 249 } 250 #endif 251 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) { 252 fprintf(stderr, "fstat: %s\n", kvm_geterr(kd)); 253 exit(1); 254 } 255 if (nflg) 256 printf("%s", 257 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 258 else 259 printf("%s", 260 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 261 if (checkfile && fsflg == 0) 262 printf(" NAME\n"); 263 else 264 putchar('\n'); 265 266 for (plast = &p[cnt]; p < plast; ++p) { 267 if (p->kp_proc.p_stat == SZOMB) 268 continue; 269 dofiles(p); 270 } 271 exit(0); 272 } 273 274 char *Uname, *Comm; 275 int Pid; 276 277 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 278 switch(i) { \ 279 case TEXT: \ 280 printf(" text"); \ 281 break; \ 282 case CDIR: \ 283 printf(" wd"); \ 284 break; \ 285 case RDIR: \ 286 printf(" root"); \ 287 break; \ 288 case TRACE: \ 289 printf(" tr"); \ 290 break; \ 291 default: \ 292 printf(" %4d", i); \ 293 break; \ 294 } 295 296 /* 297 * print open files attributed to this process 298 */ 299 void 300 dofiles(kp) 301 struct kinfo_proc *kp; 302 { 303 int i, last; 304 struct file file; 305 struct filedesc0 filed0; 306 #define filed filed0.fd_fd 307 struct proc *p = &kp->kp_proc; 308 struct eproc *ep = &kp->kp_eproc; 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 /* 322 * root directory vnode, if one 323 */ 324 if (filed.fd_rdir) 325 vtrans(filed.fd_rdir, RDIR, FREAD); 326 /* 327 * current working directory vnode 328 */ 329 vtrans(filed.fd_cdir, CDIR, FREAD); 330 /* 331 * ktrace vnode, if one 332 */ 333 if (p->p_tracep) 334 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 335 /* 336 * text vnode, if one 337 */ 338 if (p->p_textvp) 339 vtrans(p->p_textvp, TEXT, FREAD); 340 /* 341 * open files 342 */ 343 #define FPSIZE (sizeof (struct file *)) 344 ALLOC_OFILES(filed.fd_lastfile+1); 345 if (filed.fd_nfiles > NDFILE) { 346 if (!KVM_READ(filed.fd_ofiles, ofiles, 347 (filed.fd_lastfile+1) * FPSIZE)) { 348 dprintf(stderr, 349 "can't read file structures at %x for pid %d\n", 350 filed.fd_ofiles, Pid); 351 return; 352 } 353 } else 354 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE); 355 for (i = 0; i <= filed.fd_lastfile; i++) { 356 if (ofiles[i] == NULL) 357 continue; 358 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 359 dprintf(stderr, "can't read file %d at %x for pid %d\n", 360 i, ofiles[i], Pid); 361 continue; 362 } 363 if (file.f_type == DTYPE_VNODE) 364 vtrans((struct vnode *)file.f_data, i, file.f_flag); 365 else if (file.f_type == DTYPE_SOCKET) { 366 if (checkfile == 0) 367 socktrans((struct socket *)file.f_data, i); 368 } 369 #ifdef DTYPE_PIPE 370 else if (file.f_type == DTYPE_PIPE) { 371 if (checkfile == 0) 372 pipetrans((struct pipe *)file.f_data, i, 373 file.f_flag); 374 } 375 #endif 376 else { 377 dprintf(stderr, 378 "unknown file type %d for file %d of pid %d\n", 379 file.f_type, i, Pid); 380 } 381 } 382 } 383 384 void 385 vtrans(vp, i, flag) 386 struct vnode *vp; 387 int i; 388 int flag; 389 { 390 struct vnode vn; 391 struct filestat fst; 392 char rw[3], mode[15]; 393 char *badtype = NULL, *filename, *getmnton(); 394 395 filename = badtype = NULL; 396 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 397 dprintf(stderr, "can't read vnode at %x for pid %d\n", 398 vp, Pid); 399 return; 400 } 401 if (vn.v_type == VNON || vn.v_tag == VT_NON) 402 badtype = "none"; 403 else if (vn.v_type == VBAD) 404 badtype = "bad"; 405 else 406 switch (vn.v_tag) { 407 case VT_UFS: 408 if (!ufs_filestat(&vn, &fst)) 409 badtype = "error"; 410 break; 411 case VT_MFS: 412 if (!ufs_filestat(&vn, &fst)) 413 badtype = "error"; 414 break; 415 case VT_NFS: 416 if (!nfs_filestat(&vn, &fst)) 417 badtype = "error"; 418 break; 419 default: { 420 static char unknown[10]; 421 sprintf(badtype = unknown, "?(%x)", vn.v_tag); 422 break;; 423 } 424 } 425 if (checkfile) { 426 int fsmatch = 0; 427 register DEVS *d; 428 429 if (badtype) 430 return; 431 for (d = devs; d != NULL; d = d->next) 432 if (d->fsid == fst.fsid) { 433 fsmatch = 1; 434 if (d->ino == fst.fileid) { 435 filename = d->name; 436 break; 437 } 438 } 439 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 440 return; 441 } 442 PREFIX(i); 443 if (badtype) { 444 (void)printf(" - - %10s -\n", badtype); 445 return; 446 } 447 if (nflg) 448 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 449 else 450 (void)printf(" %-8s", getmnton(vn.v_mount)); 451 if (nflg) 452 (void)sprintf(mode, "%o", fst.mode); 453 else 454 strmode(fst.mode, mode); 455 (void)printf(" %6d %10s", fst.fileid, mode); 456 switch (vn.v_type) { 457 case VBLK: 458 case VCHR: { 459 char *name; 460 461 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 462 S_IFCHR : S_IFBLK)) == NULL)) 463 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 464 else 465 printf(" %6s", name); 466 break; 467 } 468 default: 469 printf(" %6d", fst.size); 470 } 471 rw[0] = '\0'; 472 if (flag & FREAD) 473 strcat(rw, "r"); 474 if (flag & FWRITE) 475 strcat(rw, "w"); 476 printf(" %2s", rw); 477 if (filename && !fsflg) 478 printf(" %s", filename); 479 putchar('\n'); 480 } 481 482 int 483 ufs_filestat(vp, fsp) 484 struct vnode *vp; 485 struct filestat *fsp; 486 { 487 struct inode inode; 488 489 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 490 dprintf(stderr, "can't read inode at %x for pid %d\n", 491 VTOI(vp), Pid); 492 return 0; 493 } 494 fsp->fsid = inode.i_dev & 0xffff; 495 fsp->fileid = (long)inode.i_number; 496 fsp->mode = (mode_t)inode.i_mode; 497 fsp->size = (u_long)inode.i_size; 498 fsp->rdev = inode.i_rdev; 499 500 return 1; 501 } 502 503 int 504 nfs_filestat(vp, fsp) 505 struct vnode *vp; 506 struct filestat *fsp; 507 { 508 struct nfsnode nfsnode; 509 register mode_t mode; 510 511 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 512 dprintf(stderr, "can't read nfsnode at %x for pid %d\n", 513 VTONFS(vp), Pid); 514 return 0; 515 } 516 fsp->fsid = nfsnode.n_vattr.va_fsid; 517 fsp->fileid = nfsnode.n_vattr.va_fileid; 518 fsp->size = nfsnode.n_size; 519 fsp->rdev = nfsnode.n_vattr.va_rdev; 520 mode = (mode_t)nfsnode.n_vattr.va_mode; 521 switch (vp->v_type) { 522 case VREG: 523 mode |= S_IFREG; 524 break; 525 case VDIR: 526 mode |= S_IFDIR; 527 break; 528 case VBLK: 529 mode |= S_IFBLK; 530 break; 531 case VCHR: 532 mode |= S_IFCHR; 533 break; 534 case VLNK: 535 mode |= S_IFLNK; 536 break; 537 case VSOCK: 538 mode |= S_IFSOCK; 539 break; 540 case VFIFO: 541 mode |= S_IFIFO; 542 break; 543 }; 544 fsp->mode = mode; 545 546 return 1; 547 } 548 549 550 char * 551 getmnton(m) 552 struct mount *m; 553 { 554 static struct mount mount; 555 static struct mtab { 556 struct mtab *next; 557 struct mount *m; 558 char mntonname[MNAMELEN]; 559 } *mhead = NULL; 560 register struct mtab *mt; 561 562 for (mt = mhead; mt != NULL; mt = mt->next) 563 if (m == mt->m) 564 return (mt->mntonname); 565 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 566 fprintf(stderr, "can't read mount table at %x\n", m); 567 return (NULL); 568 } 569 if ((mt = malloc(sizeof (struct mtab))) == NULL) { 570 fprintf(stderr, "fstat: %s\n", strerror(errno)); 571 exit(1); 572 } 573 mt->m = m; 574 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 575 mt->next = mhead; 576 mhead = mt; 577 return (mt->mntonname); 578 } 579 580 void 581 pipetrans(pi, i, flag) 582 struct pipe *pi; 583 int i; 584 int flag; 585 { 586 struct pipe pip; 587 char rw[3]; 588 589 PREFIX(i); 590 591 /* fill in socket */ 592 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 593 dprintf(stderr, "can't read pipe at %x\n", pi); 594 goto bad; 595 } 596 597 printf("* pipe %8x <-> %8x", (int)pi, (int)pip.pipe_peer); 598 printf(" %6d", (int)pip.pipe_buffer.cnt); 599 rw[0] = '\0'; 600 if (flag & FREAD) 601 strcat(rw, "r"); 602 if (flag & FWRITE) 603 strcat(rw, "w"); 604 printf(" %2s", rw); 605 putchar('\n'); 606 return; 607 608 bad: 609 printf("* error\n"); 610 } 611 612 void 613 socktrans(sock, i) 614 struct socket *sock; 615 int i; 616 { 617 static char *stypename[] = { 618 "unused", /* 0 */ 619 "stream", /* 1 */ 620 "dgram", /* 2 */ 621 "raw", /* 3 */ 622 "rdm", /* 4 */ 623 "seqpak" /* 5 */ 624 }; 625 #define STYPEMAX 5 626 struct socket so; 627 struct protosw proto; 628 struct domain dom; 629 struct inpcb inpcb; 630 struct unpcb unpcb; 631 int len; 632 char dname[32], *strcpy(); 633 634 PREFIX(i); 635 636 /* fill in socket */ 637 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 638 dprintf(stderr, "can't read sock at %x\n", sock); 639 goto bad; 640 } 641 642 /* fill in protosw entry */ 643 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 644 dprintf(stderr, "can't read protosw at %x", so.so_proto); 645 goto bad; 646 } 647 648 /* fill in domain */ 649 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 650 dprintf(stderr, "can't read domain at %x\n", proto.pr_domain); 651 goto bad; 652 } 653 654 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 655 sizeof(dname) - 1)) < 0) { 656 dprintf(stderr, "can't read domain name at %x\n", 657 dom.dom_name); 658 dname[0] = '\0'; 659 } 660 else 661 dname[len] = '\0'; 662 663 if ((u_short)so.so_type > STYPEMAX) 664 printf("* %s ?%d", dname, so.so_type); 665 else 666 printf("* %s %s", dname, stypename[so.so_type]); 667 668 /* 669 * protocol specific formatting 670 * 671 * Try to find interesting things to print. For tcp, the interesting 672 * thing is the address of the tcpcb, for udp and others, just the 673 * inpcb (socket pcb). For unix domain, its the address of the socket 674 * pcb and the address of the connected pcb (if connected). Otherwise 675 * just print the protocol number and address of the socket itself. 676 * The idea is not to duplicate netstat, but to make available enough 677 * information for further analysis. 678 */ 679 switch(dom.dom_family) { 680 case AF_INET: 681 getinetproto(proto.pr_protocol); 682 if (proto.pr_protocol == IPPROTO_TCP ) { 683 if (so.so_pcb) { 684 if (kvm_read(kd, (u_long)so.so_pcb, 685 (char *)&inpcb, sizeof(struct inpcb)) 686 != sizeof(struct inpcb)) { 687 dprintf(stderr, 688 "can't read inpcb at %x\n", 689 so.so_pcb); 690 goto bad; 691 } 692 printf(" %x", (int)inpcb.inp_ppcb); 693 } 694 } 695 else if (so.so_pcb) 696 printf(" %x", (int)so.so_pcb); 697 break; 698 case AF_UNIX: 699 /* print address of pcb and connected pcb */ 700 if (so.so_pcb) { 701 printf(" %x", (int)so.so_pcb); 702 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 703 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 704 dprintf(stderr, "can't read unpcb at %x\n", 705 so.so_pcb); 706 goto bad; 707 } 708 if (unpcb.unp_conn) { 709 char shoconn[4], *cp; 710 711 cp = shoconn; 712 if (!(so.so_state & SS_CANTRCVMORE)) 713 *cp++ = '<'; 714 *cp++ = '-'; 715 if (!(so.so_state & SS_CANTSENDMORE)) 716 *cp++ = '>'; 717 *cp = '\0'; 718 printf(" %s %x", shoconn, 719 (int)unpcb.unp_conn); 720 } 721 } 722 break; 723 default: 724 /* print protocol number and socket address */ 725 printf(" %d %x", proto.pr_protocol, (int)sock); 726 } 727 printf("\n"); 728 return; 729 bad: 730 printf("* error\n"); 731 } 732 733 /* 734 * getinetproto -- 735 * print name of protocol number 736 */ 737 void 738 getinetproto(number) 739 int number; 740 { 741 char *cp; 742 743 switch(number) { 744 case IPPROTO_IP: 745 cp = "ip"; break; 746 case IPPROTO_ICMP: 747 cp ="icmp"; break; 748 case IPPROTO_GGP: 749 cp ="ggp"; break; 750 case IPPROTO_TCP: 751 cp ="tcp"; break; 752 case IPPROTO_EGP: 753 cp ="egp"; break; 754 case IPPROTO_PUP: 755 cp ="pup"; break; 756 case IPPROTO_UDP: 757 cp ="udp"; break; 758 case IPPROTO_IDP: 759 cp ="idp"; break; 760 case IPPROTO_RAW: 761 cp ="raw"; break; 762 default: 763 printf(" %d", number); 764 return; 765 } 766 printf(" %s", cp); 767 } 768 769 int 770 getfname(filename) 771 char *filename; 772 { 773 struct stat statbuf; 774 DEVS *cur; 775 776 if (stat(filename, &statbuf)) { 777 fprintf(stderr, "fstat: %s: %s\n", filename, strerror(errno)); 778 return(0); 779 } 780 if ((cur = malloc(sizeof(DEVS))) == NULL) { 781 fprintf(stderr, "fstat: %s\n", strerror(errno)); 782 exit(1); 783 } 784 cur->next = devs; 785 devs = cur; 786 787 cur->ino = statbuf.st_ino; 788 cur->fsid = statbuf.st_dev & 0xffff; 789 cur->name = filename; 790 return(1); 791 } 792 793 void 794 usage() 795 { 796 (void)fprintf(stderr, 797 "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 798 exit(1); 799 } 800