fstat.c revision 1.24
1 /* $NetBSD: fstat.c,v 1.24 1997/10/20 00:00:49 thorpej 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 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) 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 __RCSID("$NetBSD: fstat.c,v 1.24 1997/10/20 00:00:49 thorpej 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 #include <unistd.h> 93 94 #define TEXT -1 95 #define CDIR -2 96 #define RDIR -3 97 #define TRACE -4 98 99 typedef struct devs { 100 struct devs *next; 101 long fsid; 102 ino_t ino; 103 char *name; 104 } DEVS; 105 DEVS *devs; 106 107 struct filestat { 108 long fsid; 109 long fileid; 110 mode_t mode; 111 u_long size; 112 dev_t rdev; 113 }; 114 115 #ifdef notdef 116 struct nlist nl[] = { 117 { "" }, 118 }; 119 #endif 120 121 int fsflg, /* show files on same filesystem as file(s) argument */ 122 pflg, /* show files open by a particular pid */ 123 uflg; /* show files open by a particular (effective) user */ 124 int checkfile; /* true if restricting to particular files or filesystems */ 125 int nflg; /* (numerical) display f.s. and rdev as dev_t */ 126 int vflg; /* display errors in locating kernel data objects etc... */ 127 128 #define dprintf if (vflg) fprintf 129 130 struct file **ofiles; /* buffer of pointers to file structures */ 131 int maxfiles; 132 #define ALLOC_OFILES(d) \ 133 if ((d) > maxfiles) { \ 134 free(ofiles); \ 135 ofiles = malloc((d) * sizeof(struct file *)); \ 136 if (ofiles == NULL) { \ 137 fprintf(stderr, "fstat: %s\n", strerror(errno)); \ 138 exit(1); \ 139 } \ 140 maxfiles = (d); \ 141 } 142 143 /* 144 * a kvm_read that returns true if everything is read 145 */ 146 #define KVM_READ(kaddr, paddr, len) \ 147 (kvm_read(kd, (u_long)(kaddr), (char *)(paddr), (len)) == (len)) 148 149 kvm_t *kd; 150 151 void dofiles __P((struct kinfo_proc *)); 152 int ext2fs_filestat __P((struct vnode *, struct filestat *)); 153 int getfname __P((char *)); 154 void getinetproto __P((int)); 155 char *getmnton __P((struct mount *)); 156 int main __P((int, char **)); 157 int nfs_filestat __P((struct vnode *, struct filestat *)); 158 void socktrans __P((struct socket *, int)); 159 int ufs_filestat __P((struct vnode *, struct filestat *)); 160 void usage __P((void)); 161 void vtrans __P((struct vnode *, int, int)); 162 163 int 164 main(argc, argv) 165 int argc; 166 char **argv; 167 { 168 struct passwd *passwd; 169 struct kinfo_proc *p, *plast; 170 int arg, ch, what; 171 char *memf, *nlistf; 172 char buf[_POSIX2_LINE_MAX]; 173 int cnt; 174 175 arg = 0; 176 what = KERN_PROC_ALL; 177 nlistf = memf = NULL; 178 while ((ch = getopt(argc, argv, "fnp:u:vN:M:")) != -1) 179 switch((char)ch) { 180 case 'f': 181 fsflg = 1; 182 break; 183 case 'M': 184 memf = optarg; 185 break; 186 case 'N': 187 nlistf = optarg; 188 break; 189 case 'n': 190 nflg = 1; 191 break; 192 case 'p': 193 if (pflg++) 194 usage(); 195 if (!isdigit(*optarg)) { 196 fprintf(stderr, 197 "fstat: -p requires a process id\n"); 198 usage(); 199 } 200 what = KERN_PROC_PID; 201 arg = atoi(optarg); 202 break; 203 case 'u': 204 if (uflg++) 205 usage(); 206 if (!(passwd = getpwnam(optarg))) { 207 fprintf(stderr, "%s: unknown uid\n", 208 optarg); 209 exit(1); 210 } 211 what = KERN_PROC_UID; 212 arg = passwd->pw_uid; 213 break; 214 case 'v': 215 vflg = 1; 216 break; 217 case '?': 218 default: 219 usage(); 220 } 221 222 if (*(argv += optind)) { 223 for (; *argv; ++argv) { 224 if (getfname(*argv)) 225 checkfile = 1; 226 } 227 if (!checkfile) /* file(s) specified, but none accessable */ 228 exit(1); 229 } 230 231 ALLOC_OFILES(256); /* reserve space for file pointers */ 232 233 if (fsflg && !checkfile) { 234 /* -f with no files means use wd */ 235 if (getfname(".") == 0) 236 exit(1); 237 checkfile = 1; 238 } 239 240 /* 241 * Discard setgid privileges if not the running kernel so that bad 242 * guys can't print interesting stuff from kernel memory. 243 */ 244 if (nlistf != NULL || memf != NULL) 245 setgid(getgid()); 246 247 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) { 248 fprintf(stderr, "fstat: %s\n", buf); 249 exit(1); 250 } 251 #ifdef notdef 252 if (kvm_nlist(kd, nl) != 0) { 253 fprintf(stderr, "fstat: no namelist: %s\n", kvm_geterr(kd)); 254 exit(1); 255 } 256 #endif 257 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) { 258 fprintf(stderr, "fstat: %s\n", kvm_geterr(kd)); 259 exit(1); 260 } 261 if (nflg) 262 printf("%s", 263 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 264 else 265 printf("%s", 266 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 267 if (checkfile && fsflg == 0) 268 printf(" NAME\n"); 269 else 270 putchar('\n'); 271 272 for (plast = &p[cnt]; p < plast; ++p) { 273 if (p->kp_proc.p_stat == SZOMB) 274 continue; 275 dofiles(p); 276 } 277 exit(0); 278 } 279 280 char *Uname, *Comm; 281 int Pid; 282 283 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 284 switch(i) { \ 285 case TEXT: \ 286 printf(" text"); \ 287 break; \ 288 case CDIR: \ 289 printf(" wd"); \ 290 break; \ 291 case RDIR: \ 292 printf(" root"); \ 293 break; \ 294 case TRACE: \ 295 printf(" tr"); \ 296 break; \ 297 default: \ 298 printf(" %4d", i); \ 299 break; \ 300 } 301 302 /* 303 * print open files attributed to this process 304 */ 305 void 306 dofiles(kp) 307 struct kinfo_proc *kp; 308 { 309 int i; 310 struct file file; 311 struct filedesc0 filed0; 312 #define filed filed0.fd_fd 313 struct proc *p = &kp->kp_proc; 314 struct eproc *ep = &kp->kp_eproc; 315 316 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 317 Pid = p->p_pid; 318 Comm = p->p_comm; 319 320 if (p->p_fd == NULL) 321 return; 322 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 323 dprintf(stderr, "can't read filedesc at %lx for pid %d\n", 324 (long)p->p_fd, Pid); 325 return; 326 } 327 if (filed.fd_nfiles < 0 || filed.fd_lastfile >= filed.fd_nfiles || 328 filed.fd_freefile > filed.fd_lastfile + 1) { 329 dprintf(stderr, "filedesc corrupted at %lx for pid %d\n", 330 (long)p->p_fd, Pid); 331 return; 332 } 333 /* 334 * root directory vnode, if one 335 */ 336 if (filed.fd_rdir) 337 vtrans(filed.fd_rdir, RDIR, FREAD); 338 /* 339 * current working directory vnode 340 */ 341 vtrans(filed.fd_cdir, CDIR, FREAD); 342 /* 343 * ktrace vnode, if one 344 */ 345 if (p->p_tracep) 346 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 347 /* 348 * open files 349 */ 350 #define FPSIZE (sizeof (struct file *)) 351 ALLOC_OFILES(filed.fd_lastfile+1); 352 if (filed.fd_nfiles > NDFILE) { 353 if (!KVM_READ(filed.fd_ofiles, ofiles, 354 (filed.fd_lastfile+1) * FPSIZE)) { 355 dprintf(stderr, 356 "can't read file structures at %lx for pid %d\n", 357 (long)filed.fd_ofiles, Pid); 358 return; 359 } 360 } else 361 memmove(ofiles, filed0.fd_dfiles, 362 (filed.fd_lastfile+1) * FPSIZE); 363 for (i = 0; i <= filed.fd_lastfile; i++) { 364 if (ofiles[i] == NULL) 365 continue; 366 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 367 dprintf(stderr, 368 "can't read file %d at %lx for pid %d\n", 369 i, (long)ofiles[i], Pid); 370 continue; 371 } 372 if (file.f_type == DTYPE_VNODE) 373 vtrans((struct vnode *)file.f_data, i, file.f_flag); 374 else if (file.f_type == DTYPE_SOCKET) { 375 if (checkfile == 0) 376 socktrans((struct socket *)file.f_data, i); 377 } 378 else { 379 dprintf(stderr, 380 "unknown file type %d for file %d of pid %d\n", 381 file.f_type, i, Pid); 382 } 383 } 384 } 385 386 void 387 vtrans(vp, i, flag) 388 struct vnode *vp; 389 int i; 390 int flag; 391 { 392 struct vnode vn; 393 struct filestat fst; 394 char mode[15]; 395 char *badtype = NULL, *filename; 396 397 filename = badtype = NULL; 398 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 399 dprintf(stderr, "can't read vnode at %lx for pid %d\n", 400 (long)vp, Pid); 401 return; 402 } 403 if (vn.v_type == VNON || vn.v_tag == VT_NON) 404 badtype = "none"; 405 else if (vn.v_type == VBAD) 406 badtype = "bad"; 407 else 408 switch (vn.v_tag) { 409 case VT_UFS: 410 if (!ufs_filestat(&vn, &fst)) 411 badtype = "error"; 412 break; 413 case VT_MFS: 414 if (!ufs_filestat(&vn, &fst)) 415 badtype = "error"; 416 break; 417 case VT_NFS: 418 if (!nfs_filestat(&vn, &fst)) 419 badtype = "error"; 420 break; 421 case VT_EXT2FS: 422 if (!ext2fs_filestat(&vn, &fst)) 423 badtype = "error"; 424 break; 425 default: { 426 static char unknown[10]; 427 (void)snprintf(badtype = unknown, sizeof unknown, 428 "?(%x)", vn.v_tag); 429 break;; 430 } 431 } 432 if (checkfile) { 433 int fsmatch = 0; 434 DEVS *d; 435 436 if (badtype) 437 return; 438 for (d = devs; d != NULL; d = d->next) 439 if (d->fsid == fst.fsid) { 440 fsmatch = 1; 441 if (d->ino == fst.fileid) { 442 filename = d->name; 443 break; 444 } 445 } 446 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 447 return; 448 } 449 PREFIX(i); 450 if (badtype) { 451 (void)printf(" - - %10s -\n", badtype); 452 return; 453 } 454 if (nflg) 455 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 456 else 457 (void)printf(" %-8s", getmnton(vn.v_mount)); 458 if (nflg) 459 (void)snprintf(mode, sizeof mode, "%o", fst.mode); 460 else 461 strmode(fst.mode, mode); 462 (void)printf(" %6ld %10s", (long)fst.fileid, mode); 463 switch (vn.v_type) { 464 case VBLK: 465 case VCHR: { 466 char *name; 467 468 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 469 S_IFCHR : S_IFBLK)) == NULL)) 470 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 471 else 472 printf(" %6s", name); 473 break; 474 } 475 default: 476 printf(" %6ld", (long)fst.size); 477 } 478 putchar(' '); 479 if (flag & FREAD) 480 putchar('r'); 481 if (flag & FWRITE) 482 putchar('w'); 483 if (filename && !fsflg) 484 printf(" %s", filename); 485 putchar('\n'); 486 } 487 488 int 489 ufs_filestat(vp, fsp) 490 struct vnode *vp; 491 struct filestat *fsp; 492 { 493 struct inode inode; 494 495 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 496 dprintf(stderr, "can't read inode at %lx for pid %d\n", 497 (long)VTOI(vp), Pid); 498 return 0; 499 } 500 fsp->fsid = inode.i_dev & 0xffff; 501 fsp->fileid = (long)inode.i_number; 502 fsp->mode = (mode_t)inode.i_ffs_mode; 503 fsp->size = (u_long)inode.i_ffs_size; 504 fsp->rdev = inode.i_ffs_rdev; 505 506 return 1; 507 } 508 509 int 510 ext2fs_filestat(vp, fsp) 511 struct vnode *vp; 512 struct filestat *fsp; 513 { 514 struct inode inode; 515 516 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 517 dprintf(stderr, "can't read inode at %lx for pid %d\n", 518 (long)VTOI(vp), Pid); 519 return 0; 520 } 521 fsp->fsid = inode.i_dev & 0xffff; 522 fsp->fileid = (long)inode.i_number; 523 fsp->mode = (mode_t)inode.i_e2fs_mode; 524 fsp->size = (u_long)inode.i_e2fs_size; 525 fsp->rdev = 0; /* XXX */ 526 return 1; 527 } 528 529 int 530 nfs_filestat(vp, fsp) 531 struct vnode *vp; 532 struct filestat *fsp; 533 { 534 struct nfsnode nfsnode; 535 struct vattr va; 536 mode_t mode; 537 538 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 539 dprintf(stderr, "can't read nfsnode at 0x%lx for pid %d\n", 540 (u_long)VTONFS(vp), Pid); 541 return 0; 542 } 543 if (!KVM_READ(nfsnode.n_vattr, &va, sizeof(va))) { 544 dprintf(stderr, 545 "can't read vnode attributes at 0x%lx for pid %d\n", 546 (u_long)nfsnode.n_vattr, Pid); 547 return 0; 548 } 549 fsp->fsid = va.va_fsid; 550 fsp->fileid = va.va_fileid; 551 fsp->size = nfsnode.n_size; 552 fsp->rdev = va.va_rdev; 553 mode = (mode_t)va.va_mode; 554 switch (vp->v_type) { 555 case VREG: 556 mode |= S_IFREG; 557 break; 558 case VDIR: 559 mode |= S_IFDIR; 560 break; 561 case VBLK: 562 mode |= S_IFBLK; 563 break; 564 case VCHR: 565 mode |= S_IFCHR; 566 break; 567 case VLNK: 568 mode |= S_IFLNK; 569 break; 570 case VSOCK: 571 mode |= S_IFSOCK; 572 break; 573 case VFIFO: 574 mode |= S_IFIFO; 575 break; 576 default: 577 break; 578 }; 579 fsp->mode = mode; 580 581 return 1; 582 } 583 584 585 char * 586 getmnton(m) 587 struct mount *m; 588 { 589 static struct mount mount; 590 static struct mtab { 591 struct mtab *next; 592 struct mount *m; 593 char mntonname[MNAMELEN]; 594 } *mhead = NULL; 595 struct mtab *mt; 596 597 for (mt = mhead; mt != NULL; mt = mt->next) 598 if (m == mt->m) 599 return (mt->mntonname); 600 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 601 fprintf(stderr, "can't read mount table at %lx\n", (long)m); 602 return (NULL); 603 } 604 if ((mt = malloc(sizeof (struct mtab))) == NULL) { 605 fprintf(stderr, "fstat: %s\n", strerror(errno)); 606 exit(1); 607 } 608 mt->m = m; 609 memmove(&mt->mntonname[0], &mount.mnt_stat.f_mntonname[0], MNAMELEN); 610 mt->next = mhead; 611 mhead = mt; 612 return (mt->mntonname); 613 } 614 615 void 616 socktrans(sock, i) 617 struct socket *sock; 618 int i; 619 { 620 static char *stypename[] = { 621 "unused", /* 0 */ 622 "stream", /* 1 */ 623 "dgram", /* 2 */ 624 "raw", /* 3 */ 625 "rdm", /* 4 */ 626 "seqpak" /* 5 */ 627 }; 628 #define STYPEMAX 5 629 struct socket so; 630 struct protosw proto; 631 struct domain dom; 632 struct inpcb inpcb; 633 struct unpcb unpcb; 634 int len; 635 char dname[32]; 636 637 PREFIX(i); 638 639 /* fill in socket */ 640 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 641 dprintf(stderr, "can't read sock at %lx\n", (long)sock); 642 goto bad; 643 } 644 645 /* fill in protosw entry */ 646 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 647 dprintf(stderr, "can't read protosw at %lx", (long)so.so_proto); 648 goto bad; 649 } 650 651 /* fill in domain */ 652 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 653 dprintf(stderr, "can't read domain at %lx\n", 654 (long)proto.pr_domain); 655 goto bad; 656 } 657 658 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 659 sizeof(dname) - 1)) < 0) { 660 dprintf(stderr, "can't read domain name at %lx\n", 661 (long)dom.dom_name); 662 dname[0] = '\0'; 663 } 664 else 665 dname[len] = '\0'; 666 667 if ((u_short)so.so_type > STYPEMAX) 668 printf("* %s ?%d", dname, so.so_type); 669 else 670 printf("* %s %s", dname, stypename[so.so_type]); 671 672 /* 673 * protocol specific formatting 674 * 675 * Try to find interesting things to print. For tcp, the interesting 676 * thing is the address of the tcpcb, for udp and others, just the 677 * inpcb (socket pcb). For unix domain, its the address of the socket 678 * pcb and the address of the connected pcb (if connected). Otherwise 679 * just print the protocol number and address of the socket itself. 680 * The idea is not to duplicate netstat, but to make available enough 681 * information for further analysis. 682 */ 683 switch(dom.dom_family) { 684 case AF_INET: 685 getinetproto(proto.pr_protocol); 686 if (proto.pr_protocol == IPPROTO_TCP ) { 687 if (so.so_pcb) { 688 if (kvm_read(kd, (u_long)so.so_pcb, 689 (char *)&inpcb, sizeof(struct inpcb)) 690 != sizeof(struct inpcb)) { 691 dprintf(stderr, 692 "can't read inpcb at %lx\n", 693 (long)so.so_pcb); 694 goto bad; 695 } 696 printf(" %lx", (long)inpcb.inp_ppcb); 697 } 698 } 699 else if (so.so_pcb) 700 printf(" %lx", (long)so.so_pcb); 701 break; 702 case AF_UNIX: 703 /* print address of pcb and connected pcb */ 704 if (so.so_pcb) { 705 printf(" %lx", (long)so.so_pcb); 706 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 707 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 708 dprintf(stderr, "can't read unpcb at %lx\n", 709 (long)so.so_pcb); 710 goto bad; 711 } 712 if (unpcb.unp_conn) { 713 char shoconn[4], *cp; 714 715 cp = shoconn; 716 if (!(so.so_state & SS_CANTRCVMORE)) 717 *cp++ = '<'; 718 *cp++ = '-'; 719 if (!(so.so_state & SS_CANTSENDMORE)) 720 *cp++ = '>'; 721 *cp = '\0'; 722 printf(" %s %lx", shoconn, 723 (long)unpcb.unp_conn); 724 } 725 } 726 break; 727 default: 728 /* print protocol number and socket address */ 729 printf(" %d %lx", proto.pr_protocol, (long)sock); 730 } 731 printf("\n"); 732 return; 733 bad: 734 printf("* error\n"); 735 } 736 737 /* 738 * getinetproto -- 739 * print name of protocol number 740 */ 741 void 742 getinetproto(number) 743 int number; 744 { 745 char *cp; 746 747 switch(number) { 748 case IPPROTO_IP: 749 cp = "ip"; break; 750 case IPPROTO_ICMP: 751 cp ="icmp"; break; 752 case IPPROTO_GGP: 753 cp ="ggp"; break; 754 case IPPROTO_TCP: 755 cp ="tcp"; break; 756 case IPPROTO_EGP: 757 cp ="egp"; break; 758 case IPPROTO_PUP: 759 cp ="pup"; break; 760 case IPPROTO_UDP: 761 cp ="udp"; break; 762 case IPPROTO_IDP: 763 cp ="idp"; break; 764 case IPPROTO_RAW: 765 cp ="raw"; break; 766 default: 767 printf(" %d", number); 768 return; 769 } 770 printf(" %s", cp); 771 } 772 773 int 774 getfname(filename) 775 char *filename; 776 { 777 struct stat statbuf; 778 DEVS *cur; 779 780 if (stat(filename, &statbuf)) { 781 fprintf(stderr, "fstat: %s: %s\n", filename, strerror(errno)); 782 return(0); 783 } 784 if ((cur = malloc(sizeof(DEVS))) == NULL) { 785 fprintf(stderr, "fstat: %s\n", strerror(errno)); 786 exit(1); 787 } 788 cur->next = devs; 789 devs = cur; 790 791 cur->ino = statbuf.st_ino; 792 cur->fsid = statbuf.st_dev & 0xffff; 793 cur->name = filename; 794 return(1); 795 } 796 797 void 798 usage() 799 { 800 (void)fprintf(stderr, 801 "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 802 exit(1); 803 } 804
Indexes created Sun Sep 21 20:09:37 GMT 2025