fstat.c revision 1.28
1 /* $NetBSD: fstat.c,v 1.28 1998/07/06 21:47:07 fair 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 1.28 1998/07/06 21:47:07 fair 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 #include <err.h> 94 95 #define TEXT -1 96 #define CDIR -2 97 #define RDIR -3 98 #define TRACE -4 99 100 typedef struct devs { 101 struct devs *next; 102 long fsid; 103 ino_t ino; 104 char *name; 105 } DEVS; 106 DEVS *devs; 107 108 struct filestat { 109 long fsid; 110 long fileid; 111 mode_t mode; 112 u_long size; 113 dev_t rdev; 114 }; 115 116 #ifdef notdef 117 struct nlist nl[] = { 118 { "" }, 119 }; 120 #endif 121 122 int fsflg, /* show files on same filesystem as file(s) argument */ 123 pflg, /* show files open by a particular pid */ 124 uflg; /* show files open by a particular (effective) user */ 125 int checkfile; /* true if restricting to particular files or filesystems */ 126 int nflg; /* (numerical) display f.s. and rdev as dev_t */ 127 int vflg; /* display errors in locating kernel data objects etc... */ 128 129 #define dprintf if (vflg) fprintf 130 131 struct file **ofiles; /* buffer of pointers to file structures */ 132 int maxfiles; 133 #define ALLOC_OFILES(d) \ 134 if ((d) > maxfiles) { \ 135 free(ofiles); \ 136 ofiles = malloc((d) * sizeof(struct file *)); \ 137 if (ofiles == NULL) { \ 138 err(1, NULL); \ 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 gid_t egid = getegid(); 175 176 (void)setegid(getgid()); 177 arg = 0; 178 what = KERN_PROC_ALL; 179 nlistf = memf = NULL; 180 while ((ch = getopt(argc, argv, "fnp:u:vN:M:")) != -1) 181 switch((char)ch) { 182 case 'f': 183 fsflg = 1; 184 break; 185 case 'M': 186 memf = optarg; 187 break; 188 case 'N': 189 nlistf = optarg; 190 break; 191 case 'n': 192 nflg = 1; 193 break; 194 case 'p': 195 if (pflg++) 196 usage(); 197 if (!isdigit(*optarg)) { 198 warnx("-p requires a process id\n"); 199 usage(); 200 } 201 what = KERN_PROC_PID; 202 arg = atoi(optarg); 203 break; 204 case 'u': 205 if (uflg++) 206 usage(); 207 if (!(passwd = getpwnam(optarg))) { 208 errx(1, "%s: unknown uid\n", optarg); 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, we toss 241 * them away totally so that bad guys can't print interesting stuff 242 * from kernel memory, otherwise switch back to kmem for the 243 * duration of the kvm_openfiles() call. 244 */ 245 if (nlistf != NULL || memf != NULL) 246 (void)setgid(getgid()); 247 else 248 (void)setegid(egid); 249 250 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 251 errx(1, "%s", buf); 252 253 /* get rid of it now anyway */ 254 if (nlistf == NULL && memf == NULL) 255 (void)setgid(getgid()); 256 257 #ifdef notdef 258 if (kvm_nlist(kd, nl) != 0) { 259 errx(1, "no namelist: %s\n", kvm_geterr(kd)); 260 } 261 #endif 262 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) { 263 errx(1, "%s\n", kvm_geterr(kd)); 264 } 265 if (nflg) 266 printf("%s", 267 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 268 else 269 printf("%s", 270 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 271 if (checkfile && fsflg == 0) 272 printf(" NAME\n"); 273 else 274 putchar('\n'); 275 276 for (plast = &p[cnt]; p < plast; ++p) { 277 if (p->kp_proc.p_stat == SZOMB) 278 continue; 279 dofiles(p); 280 } 281 exit(0); 282 } 283 284 char *Uname, *Comm; 285 int Pid; 286 287 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 288 switch(i) { \ 289 case TEXT: \ 290 printf(" text"); \ 291 break; \ 292 case CDIR: \ 293 printf(" wd"); \ 294 break; \ 295 case RDIR: \ 296 printf(" root"); \ 297 break; \ 298 case TRACE: \ 299 printf(" tr"); \ 300 break; \ 301 default: \ 302 printf(" %4d", i); \ 303 break; \ 304 } 305 306 /* 307 * print open files attributed to this process 308 */ 309 void 310 dofiles(kp) 311 struct kinfo_proc *kp; 312 { 313 int i; 314 struct file file; 315 struct filedesc0 filed0; 316 #define filed filed0.fd_fd 317 struct proc *p = &kp->kp_proc; 318 struct eproc *ep = &kp->kp_eproc; 319 320 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 321 Pid = p->p_pid; 322 Comm = p->p_comm; 323 324 if (p->p_fd == NULL) 325 return; 326 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 327 dprintf(stderr, "can't read filedesc at %lx for pid %d\n", 328 (long)p->p_fd, Pid); 329 return; 330 } 331 if (filed.fd_nfiles < 0 || filed.fd_lastfile >= filed.fd_nfiles || 332 filed.fd_freefile > filed.fd_lastfile + 1) { 333 dprintf(stderr, "filedesc corrupted at %lx for pid %d\n", 334 (long)p->p_fd, Pid); 335 return; 336 } 337 /* 338 * root directory vnode, if one 339 */ 340 if (filed.fd_rdir) 341 vtrans(filed.fd_rdir, RDIR, FREAD); 342 /* 343 * current working directory vnode 344 */ 345 vtrans(filed.fd_cdir, CDIR, FREAD); 346 /* 347 * ktrace vnode, if one 348 */ 349 if (p->p_tracep) 350 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 351 /* 352 * open files 353 */ 354 #define FPSIZE (sizeof (struct file *)) 355 ALLOC_OFILES(filed.fd_lastfile+1); 356 if (filed.fd_nfiles > NDFILE) { 357 if (!KVM_READ(filed.fd_ofiles, ofiles, 358 (filed.fd_lastfile+1) * FPSIZE)) { 359 dprintf(stderr, 360 "can't read file structures at %lx for pid %d\n", 361 (long)filed.fd_ofiles, Pid); 362 return; 363 } 364 } else 365 memmove(ofiles, filed0.fd_dfiles, 366 (filed.fd_lastfile+1) * FPSIZE); 367 for (i = 0; i <= filed.fd_lastfile; i++) { 368 if (ofiles[i] == NULL) 369 continue; 370 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 371 dprintf(stderr, 372 "can't read file %d at %lx for pid %d\n", 373 i, (long)ofiles[i], Pid); 374 continue; 375 } 376 if (file.f_type == DTYPE_VNODE) 377 vtrans((struct vnode *)file.f_data, i, file.f_flag); 378 else if (file.f_type == DTYPE_SOCKET) { 379 if (checkfile == 0) 380 socktrans((struct socket *)file.f_data, i); 381 } 382 else { 383 dprintf(stderr, 384 "unknown file type %d for file %d of pid %d\n", 385 file.f_type, i, Pid); 386 } 387 } 388 } 389 390 void 391 vtrans(vp, i, flag) 392 struct vnode *vp; 393 int i; 394 int flag; 395 { 396 struct vnode vn; 397 struct filestat fst; 398 char mode[15]; 399 char *badtype = NULL, *filename; 400 401 filename = badtype = NULL; 402 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 403 dprintf(stderr, "can't read vnode at %lx for pid %d\n", 404 (long)vp, Pid); 405 return; 406 } 407 if (vn.v_type == VNON || vn.v_tag == VT_NON) 408 badtype = "none"; 409 else if (vn.v_type == VBAD) 410 badtype = "bad"; 411 else 412 switch (vn.v_tag) { 413 case VT_UFS: 414 if (!ufs_filestat(&vn, &fst)) 415 badtype = "error"; 416 break; 417 case VT_MFS: 418 if (!ufs_filestat(&vn, &fst)) 419 badtype = "error"; 420 break; 421 case VT_NFS: 422 if (!nfs_filestat(&vn, &fst)) 423 badtype = "error"; 424 break; 425 case VT_EXT2FS: 426 if (!ext2fs_filestat(&vn, &fst)) 427 badtype = "error"; 428 break; 429 default: { 430 static char unknown[10]; 431 (void)snprintf(badtype = unknown, sizeof unknown, 432 "?(%x)", vn.v_tag); 433 break;; 434 } 435 } 436 if (checkfile) { 437 int fsmatch = 0; 438 DEVS *d; 439 440 if (badtype) 441 return; 442 for (d = devs; d != NULL; d = d->next) 443 if (d->fsid == fst.fsid) { 444 fsmatch = 1; 445 if (d->ino == fst.fileid) { 446 filename = d->name; 447 break; 448 } 449 } 450 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 451 return; 452 } 453 PREFIX(i); 454 if (badtype) { 455 (void)printf(" - - %10s -\n", badtype); 456 return; 457 } 458 if (nflg) 459 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 460 else 461 (void)printf(" %-8s", getmnton(vn.v_mount)); 462 if (nflg) 463 (void)snprintf(mode, sizeof mode, "%o", fst.mode); 464 else 465 strmode(fst.mode, mode); 466 (void)printf(" %6ld %10s", (long)fst.fileid, mode); 467 switch (vn.v_type) { 468 case VBLK: 469 case VCHR: { 470 char *name; 471 472 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 473 S_IFCHR : S_IFBLK)) == NULL)) 474 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 475 else 476 printf(" %6s", name); 477 break; 478 } 479 default: 480 printf(" %6ld", (long)fst.size); 481 } 482 putchar(' '); 483 if (flag & FREAD) 484 putchar('r'); 485 if (flag & FWRITE) 486 putchar('w'); 487 if (filename && !fsflg) 488 printf(" %s", filename); 489 putchar('\n'); 490 } 491 492 int 493 ufs_filestat(vp, fsp) 494 struct vnode *vp; 495 struct filestat *fsp; 496 { 497 struct inode inode; 498 499 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 500 dprintf(stderr, "can't read inode at %lx for pid %d\n", 501 (long)VTOI(vp), Pid); 502 return 0; 503 } 504 fsp->fsid = inode.i_dev & 0xffff; 505 fsp->fileid = (long)inode.i_number; 506 fsp->mode = (mode_t)inode.i_ffs_mode; 507 fsp->size = (u_long)inode.i_ffs_size; 508 fsp->rdev = inode.i_ffs_rdev; 509 510 return 1; 511 } 512 513 int 514 ext2fs_filestat(vp, fsp) 515 struct vnode *vp; 516 struct filestat *fsp; 517 { 518 struct inode inode; 519 520 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 521 dprintf(stderr, "can't read inode at %lx for pid %d\n", 522 (long)VTOI(vp), Pid); 523 return 0; 524 } 525 fsp->fsid = inode.i_dev & 0xffff; 526 fsp->fileid = (long)inode.i_number; 527 fsp->mode = (mode_t)inode.i_e2fs_mode; 528 fsp->size = (u_long)inode.i_e2fs_size; 529 fsp->rdev = 0; /* XXX */ 530 return 1; 531 } 532 533 int 534 nfs_filestat(vp, fsp) 535 struct vnode *vp; 536 struct filestat *fsp; 537 { 538 struct nfsnode nfsnode; 539 struct vattr va; 540 mode_t mode; 541 542 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 543 dprintf(stderr, "can't read nfsnode at 0x%lx for pid %d\n", 544 (u_long)VTONFS(vp), Pid); 545 return 0; 546 } 547 if (!KVM_READ(nfsnode.n_vattr, &va, sizeof(va))) { 548 dprintf(stderr, 549 "can't read vnode attributes at 0x%lx for pid %d\n", 550 (u_long)nfsnode.n_vattr, Pid); 551 return 0; 552 } 553 fsp->fsid = va.va_fsid; 554 fsp->fileid = va.va_fileid; 555 fsp->size = nfsnode.n_size; 556 fsp->rdev = va.va_rdev; 557 mode = (mode_t)va.va_mode; 558 switch (vp->v_type) { 559 case VREG: 560 mode |= S_IFREG; 561 break; 562 case VDIR: 563 mode |= S_IFDIR; 564 break; 565 case VBLK: 566 mode |= S_IFBLK; 567 break; 568 case VCHR: 569 mode |= S_IFCHR; 570 break; 571 case VLNK: 572 mode |= S_IFLNK; 573 break; 574 case VSOCK: 575 mode |= S_IFSOCK; 576 break; 577 case VFIFO: 578 mode |= S_IFIFO; 579 break; 580 default: 581 break; 582 }; 583 fsp->mode = mode; 584 585 return 1; 586 } 587 588 589 char * 590 getmnton(m) 591 struct mount *m; 592 { 593 static struct mount mount; 594 static struct mtab { 595 struct mtab *next; 596 struct mount *m; 597 char mntonname[MNAMELEN]; 598 } *mhead = NULL; 599 struct mtab *mt; 600 601 for (mt = mhead; mt != NULL; mt = mt->next) 602 if (m == mt->m) 603 return (mt->mntonname); 604 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 605 warnx("can't read mount table at %lx\n", (long)m); 606 return (NULL); 607 } 608 if ((mt = malloc(sizeof (struct mtab))) == NULL) { 609 err(1, "malloc(%u)", sizeof (struct mtab)); 610 } 611 mt->m = m; 612 memmove(&mt->mntonname[0], &mount.mnt_stat.f_mntonname[0], MNAMELEN); 613 mt->next = mhead; 614 mhead = mt; 615 return (mt->mntonname); 616 } 617 618 void 619 socktrans(sock, i) 620 struct socket *sock; 621 int i; 622 { 623 static char *stypename[] = { 624 "unused", /* 0 */ 625 "stream", /* 1 */ 626 "dgram", /* 2 */ 627 "raw", /* 3 */ 628 "rdm", /* 4 */ 629 "seqpak" /* 5 */ 630 }; 631 #define STYPEMAX 5 632 struct socket so; 633 struct protosw proto; 634 struct domain dom; 635 struct inpcb inpcb; 636 struct unpcb unpcb; 637 int len; 638 char dname[32]; 639 640 PREFIX(i); 641 642 /* fill in socket */ 643 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 644 dprintf(stderr, "can't read sock at %lx\n", (long)sock); 645 goto bad; 646 } 647 648 /* fill in protosw entry */ 649 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 650 dprintf(stderr, "can't read protosw at %lx", (long)so.so_proto); 651 goto bad; 652 } 653 654 /* fill in domain */ 655 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 656 dprintf(stderr, "can't read domain at %lx\n", 657 (long)proto.pr_domain); 658 goto bad; 659 } 660 661 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 662 sizeof(dname) - 1)) != sizeof(dname) -1) { 663 dprintf(stderr, "can't read domain name at %lx\n", 664 (long)dom.dom_name); 665 dname[0] = '\0'; 666 } 667 else 668 dname[len] = '\0'; 669 670 if ((u_short)so.so_type > STYPEMAX) 671 printf("* %s ?%d", dname, so.so_type); 672 else 673 printf("* %s %s", dname, stypename[so.so_type]); 674 675 /* 676 * protocol specific formatting 677 * 678 * Try to find interesting things to print. For tcp, the interesting 679 * thing is the address of the tcpcb, for udp and others, just the 680 * inpcb (socket pcb). For unix domain, its the address of the socket 681 * pcb and the address of the connected pcb (if connected). Otherwise 682 * just print the protocol number and address of the socket itself. 683 * The idea is not to duplicate netstat, but to make available enough 684 * information for further analysis. 685 */ 686 switch(dom.dom_family) { 687 case AF_INET: 688 getinetproto(proto.pr_protocol); 689 if (proto.pr_protocol == IPPROTO_TCP ) { 690 if (so.so_pcb) { 691 if (kvm_read(kd, (u_long)so.so_pcb, 692 (char *)&inpcb, sizeof(struct inpcb)) 693 != sizeof(struct inpcb)) { 694 dprintf(stderr, 695 "can't read inpcb at %lx\n", 696 (long)so.so_pcb); 697 goto bad; 698 } 699 printf(" %lx", (long)inpcb.inp_ppcb); 700 } 701 } 702 else if (so.so_pcb) 703 printf(" %lx", (long)so.so_pcb); 704 break; 705 case AF_UNIX: 706 /* print address of pcb and connected pcb */ 707 if (so.so_pcb) { 708 printf(" %lx", (long)so.so_pcb); 709 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 710 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 711 dprintf(stderr, "can't read unpcb at %lx\n", 712 (long)so.so_pcb); 713 goto bad; 714 } 715 if (unpcb.unp_conn) { 716 char shoconn[4], *cp; 717 718 cp = shoconn; 719 if (!(so.so_state & SS_CANTRCVMORE)) 720 *cp++ = '<'; 721 *cp++ = '-'; 722 if (!(so.so_state & SS_CANTSENDMORE)) 723 *cp++ = '>'; 724 *cp = '\0'; 725 printf(" %s %lx", shoconn, 726 (long)unpcb.unp_conn); 727 } 728 } 729 break; 730 default: 731 /* print protocol number and socket address */ 732 printf(" %d %lx", proto.pr_protocol, (long)sock); 733 } 734 printf("\n"); 735 return; 736 bad: 737 printf("* error\n"); 738 } 739 740 /* 741 * getinetproto -- 742 * print name of protocol number 743 */ 744 void 745 getinetproto(number) 746 int number; 747 { 748 char *cp; 749 750 switch (number) { 751 case IPPROTO_IP: 752 cp = "ip"; break; 753 case IPPROTO_ICMP: 754 cp ="icmp"; break; 755 case IPPROTO_GGP: 756 cp ="ggp"; break; 757 case IPPROTO_TCP: 758 cp ="tcp"; break; 759 case IPPROTO_EGP: 760 cp ="egp"; break; 761 case IPPROTO_PUP: 762 cp ="pup"; break; 763 case IPPROTO_UDP: 764 cp ="udp"; break; 765 case IPPROTO_IDP: 766 cp ="idp"; break; 767 case IPPROTO_RAW: 768 cp ="raw"; break; 769 default: 770 printf(" %d", number); 771 return; 772 } 773 printf(" %s", cp); 774 } 775 776 int 777 getfname(filename) 778 char *filename; 779 { 780 struct stat statbuf; 781 DEVS *cur; 782 783 if (stat(filename, &statbuf)) { 784 warn("stat(%s)", filename); 785 return(0); 786 } 787 if ((cur = malloc(sizeof(DEVS))) == NULL) { 788 err(1, "malloc(%u)", sizeof(DEVS)); 789 } 790 cur->next = devs; 791 devs = cur; 792 793 cur->ino = statbuf.st_ino; 794 cur->fsid = statbuf.st_dev & 0xffff; 795 cur->name = filename; 796 return(1); 797 } 798 799 void 800 usage() 801 { 802 errx(1, 803 "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 804 } 805
Indexes created Wed Sep 24 05:09:52 GMT 2025