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 const 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 #if 0 42 static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 47 48 #include <sys/param.h> 49 #include <sys/time.h> 50 #include <sys/proc.h> 51 #include <sys/user.h> 52 #include <sys/stat.h> 53 #include <sys/vnode.h> 54 #include <sys/socket.h> 55 #include <sys/socketvar.h> 56 #include <sys/domain.h> 57 #include <sys/protosw.h> 58 #include <sys/un.h> 59 #include <sys/unpcb.h> 60 #include <sys/sysctl.h> 61 #include <sys/filedesc.h> 62 #include <sys/queue.h> 63 #include <sys/pipe.h> 64 #include <sys/conf.h> 65 #define _KERNEL 66 #include <sys/file.h> 67 #include <ufs/ufs/quota.h> 68 #include <ufs/ufs/inode.h> 69 #undef _KERNEL 70 #include <sys/mount.h> 71 #include <nfs/nfsproto.h> 72 #include <nfs/rpcv2.h> 73 #include <nfs/nfs.h> 74 #include <nfs/nfsnode.h> 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 <err.h> 84 #include <fcntl.h> 85 #include <kvm.h> 86 #include <limits.h> 87 #include <nlist.h> 88 #include <paths.h> 89 #include <pwd.h> 90 #include <stdio.h> 91 #include <stdlib.h> 92 #include <string.h> 93 #include <unistd.h> 94 #include <netdb.h> 95 96 #define TEXT -1 97 #define CDIR -2 98 #define RDIR -3 99 #define TRACE -4 100 101 typedef struct devs { 102 struct devs *next; 103 long fsid; 104 ino_t ino; 105 char *name; 106 } DEVS; 107 DEVS *devs; 108 109 struct filestat { 110 long fsid; 111 long fileid; 112 mode_t mode; 113 u_long size; 114 dev_t rdev; 115 }; 116 117 #ifdef notdef 118 struct nlist nl[] = { 119 { "" }, 120 }; 121 #endif 122 123 int fsflg, /* show files on same filesystem as file(s) argument */ 124 pflg, /* show files open by a particular pid */ 125 uflg; /* show files open by a particular (effective) user */ 126 int checkfile; /* true if restricting to particular files or filesystems */ 127 int nflg; /* (numerical) display f.s. and rdev as dev_t */ 128 int vflg; /* display errors in locating kernel data objects etc... */ 129 130 #define dprintf if (vflg) fprintf 131 132 struct file **ofiles; /* buffer of pointers to file structures */ 133 int maxfiles; 134 #define ALLOC_OFILES(d) \ 135 if ((d) > maxfiles) { \ 136 free(ofiles); \ 137 ofiles = malloc((d) * sizeof(struct file *)); \ 138 if (ofiles == NULL) { \ 139 err(1, NULL); \ 140 } \ 141 maxfiles = (d); \ 142 } 143 144 /* 145 * a kvm_read that returns true if everything is read 146 */ 147 #define KVM_READ(kaddr, paddr, len) \ 148 (kvm_read(kd, (u_long)(kaddr), (char *)(paddr), (len)) == (len)) 149 150 kvm_t *kd; 151 152 void dofiles __P((struct kinfo_proc *kp)); 153 void vtrans __P((struct vnode *vp, int i, int flag)); 154 int ufs_filestat __P((struct vnode *vp, struct filestat *fsp)); 155 int nfs_filestat __P((struct vnode *vp, struct filestat *fsp)); 156 char *getmnton __P((struct mount *m)); 157 void pipetrans __P((struct pipe *pi, int i, int flag)); 158 void socktrans __P((struct socket *sock, int i)); 159 void getinetproto __P((int number)); 160 int getfname __P((char *filename)); 161 udev_t dev2udev __P((dev_t dev)); 162 void usage __P((void)); 163 164 165 int 166 main(argc, argv) 167 int argc; 168 char **argv; 169 { 170 register struct passwd *passwd; 171 struct kinfo_proc *p, *plast; 172 int arg, ch, what; 173 char *memf, *nlistf; 174 char buf[_POSIX2_LINE_MAX]; 175 int cnt; 176 177 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"); 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", optarg); 209 what = KERN_PROC_UID; 210 arg = passwd->pw_uid; 211 break; 212 case 'v': 213 vflg = 1; 214 break; 215 case '?': 216 default: 217 usage(); 218 } 219 220 if (*(argv += optind)) { 221 for (; *argv; ++argv) { 222 if (getfname(*argv)) 223 checkfile = 1; 224 } 225 if (!checkfile) /* file(s) specified, but none accessable */ 226 exit(1); 227 } 228 229 ALLOC_OFILES(256); /* reserve space for file pointers */ 230 231 if (fsflg && !checkfile) { 232 /* -f with no files means use wd */ 233 if (getfname(".") == 0) 234 exit(1); 235 checkfile = 1; 236 } 237 238 /* 239 * Discard setgid privileges if not the running kernel so that bad 240 * guys can't print interesting stuff from kernel memory. 241 */ 242 if (nlistf != NULL || memf != NULL) 243 setgid(getgid()); 244 245 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 246 errx(1, "%s", buf); 247 #ifdef notdef 248 if (kvm_nlist(kd, nl) != 0) 249 errx(1, "no namelist: %s", kvm_geterr(kd)); 250 #endif 251 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) 252 errx(1, "%s", kvm_geterr(kd)); 253 if (nflg) 254 printf("%s", 255 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 256 else 257 printf("%s", 258 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 259 if (checkfile && fsflg == 0) 260 printf(" NAME\n"); 261 else 262 putchar('\n'); 263 264 for (plast = &p[cnt]; p < plast; ++p) { 265 if (p->kp_proc.p_stat == SZOMB) 266 continue; 267 dofiles(p); 268 } 269 exit(0); 270 } 271 272 char *Uname, *Comm; 273 int Pid; 274 275 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 276 switch(i) { \ 277 case TEXT: \ 278 printf(" text"); \ 279 break; \ 280 case CDIR: \ 281 printf(" wd"); \ 282 break; \ 283 case RDIR: \ 284 printf(" root"); \ 285 break; \ 286 case TRACE: \ 287 printf(" tr"); \ 288 break; \ 289 default: \ 290 printf(" %4d", i); \ 291 break; \ 292 } 293 294 /* 295 * print open files attributed to this process 296 */ 297 void 298 dofiles(kp) 299 struct kinfo_proc *kp; 300 { 301 int i; 302 struct file file; 303 struct filedesc0 filed0; 304 #define filed filed0.fd_fd 305 struct proc *p = &kp->kp_proc; 306 struct eproc *ep = &kp->kp_eproc; 307 308 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 309 Pid = p->p_pid; 310 Comm = p->p_comm; 311 312 if (p->p_fd == NULL) 313 return; 314 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 315 dprintf(stderr, "can't read filedesc at %p for pid %d\n", 316 (void *)p->p_fd, Pid); 317 return; 318 } 319 /* 320 * root directory vnode, if one 321 */ 322 if (filed.fd_rdir) 323 vtrans(filed.fd_rdir, RDIR, FREAD); 324 /* 325 * current working directory vnode 326 */ 327 vtrans(filed.fd_cdir, CDIR, FREAD); 328 /* 329 * ktrace vnode, if one 330 */ 331 if (p->p_tracep) 332 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 333 /* 334 * text vnode, if one 335 */ 336 if (p->p_textvp) 337 vtrans(p->p_textvp, TEXT, FREAD); 338 /* 339 * open files 340 */ 341 #define FPSIZE (sizeof (struct file *)) 342 ALLOC_OFILES(filed.fd_lastfile+1); 343 if (filed.fd_nfiles > NDFILE) { 344 if (!KVM_READ(filed.fd_ofiles, ofiles, 345 (filed.fd_lastfile+1) * FPSIZE)) { 346 dprintf(stderr, 347 "can't read file structures at %p for pid %d\n", 348 (void *)filed.fd_ofiles, Pid); 349 return; 350 } 351 } else 352 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE); 353 for (i = 0; i <= filed.fd_lastfile; i++) { 354 if (ofiles[i] == NULL) 355 continue; 356 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 357 dprintf(stderr, "can't read file %d at %p for pid %d\n", 358 i, (void *)ofiles[i], Pid); 359 continue; 360 } 361 if (file.f_type == DTYPE_VNODE) 362 vtrans((struct vnode *)file.f_data, i, file.f_flag); 363 else if (file.f_type == DTYPE_SOCKET) { 364 if (checkfile == 0) 365 socktrans((struct socket *)file.f_data, i); 366 } 367 #ifdef DTYPE_PIPE 368 else if (file.f_type == DTYPE_PIPE) { 369 if (checkfile == 0) 370 pipetrans((struct pipe *)file.f_data, i, 371 file.f_flag); 372 } 373 #endif 374 else { 375 dprintf(stderr, 376 "unknown file type %d for file %d of pid %d\n", 377 file.f_type, i, Pid); 378 } 379 } 380 } 381 382 void 383 vtrans(vp, i, flag) 384 struct vnode *vp; 385 int i; 386 int flag; 387 { 388 struct vnode vn; 389 struct filestat fst; 390 char rw[3], mode[15]; 391 char *badtype = NULL, *filename, *getmnton(); 392 393 filename = badtype = NULL; 394 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 395 dprintf(stderr, "can't read vnode at %p for pid %d\n", 396 (void *)vp, Pid); 397 return; 398 } 399 if (vn.v_type == VNON || vn.v_tag == VT_NON) 400 badtype = "none"; 401 else if (vn.v_type == VBAD) 402 badtype = "bad"; 403 else 404 switch (vn.v_tag) { 405 case VT_UFS: 406 if (!ufs_filestat(&vn, &fst)) 407 badtype = "error"; 408 break; 409 case VT_MFS: 410 if (!ufs_filestat(&vn, &fst)) 411 badtype = "error"; 412 break; 413 case VT_NFS: 414 if (!nfs_filestat(&vn, &fst)) 415 badtype = "error"; 416 break; 417 default: { 418 static char unknown[10]; 419 sprintf(badtype = unknown, "?(%x)", vn.v_tag); 420 break;; 421 } 422 } 423 if (checkfile) { 424 int fsmatch = 0; 425 register DEVS *d; 426 427 if (badtype) 428 return; 429 for (d = devs; d != NULL; d = d->next) 430 if (d->fsid == fst.fsid) { 431 fsmatch = 1; 432 if (d->ino == fst.fileid) { 433 filename = d->name; 434 break; 435 } 436 } 437 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 438 return; 439 } 440 PREFIX(i); 441 if (badtype) { 442 (void)printf(" - - %10s -\n", badtype); 443 return; 444 } 445 if (nflg) 446 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 447 else 448 (void)printf(" %-8s", getmnton(vn.v_mount)); 449 if (nflg) 450 (void)sprintf(mode, "%o", fst.mode); 451 else 452 strmode(fst.mode, mode); 453 (void)printf(" %6ld %10s", fst.fileid, mode); 454 switch (vn.v_type) { 455 case VBLK: 456 case VCHR: { 457 char *name; 458 459 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 460 S_IFCHR : S_IFBLK)) == NULL)) 461 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 462 else 463 printf(" %6s", name); 464 break; 465 } 466 default: 467 printf(" %6lu", fst.size); 468 } 469 rw[0] = '\0'; 470 if (flag & FREAD) 471 strcat(rw, "r"); 472 if (flag & FWRITE) 473 strcat(rw, "w"); 474 printf(" %2s", rw); 475 if (filename && !fsflg) 476 printf(" %s", filename); 477 putchar('\n'); 478 } 479 480 int 481 ufs_filestat(vp, fsp) 482 struct vnode *vp; 483 struct filestat *fsp; 484 { 485 struct inode inode; 486 487 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 488 dprintf(stderr, "can't read inode at %p for pid %d\n", 489 (void *)VTOI(vp), Pid); 490 return 0; 491 } 492 /* 493 * The st_dev from stat(2) is a udev_t. These kernel structures 494 * contain dev_t structures. We need to convert to udev to make 495 * comparisons 496 */ 497 fsp->fsid = dev2udev(inode.i_dev) & 0xffff; 498 fsp->fileid = (long)inode.i_number; 499 fsp->mode = (mode_t)inode.i_mode; 500 fsp->size = (u_long)inode.i_size; 501 fsp->rdev = inode.i_rdev; 502 503 return 1; 504 } 505 506 int 507 nfs_filestat(vp, fsp) 508 struct vnode *vp; 509 struct filestat *fsp; 510 { 511 struct nfsnode nfsnode; 512 register mode_t mode; 513 514 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 515 dprintf(stderr, "can't read nfsnode at %p for pid %d\n", 516 (void *)VTONFS(vp), Pid); 517 return 0; 518 } 519 fsp->fsid = nfsnode.n_vattr.va_fsid; 520 fsp->fileid = nfsnode.n_vattr.va_fileid; 521 fsp->size = nfsnode.n_size; 522 fsp->rdev = nfsnode.n_vattr.va_rdev; 523 mode = (mode_t)nfsnode.n_vattr.va_mode; 524 switch (vp->v_type) { 525 case VREG: 526 mode |= S_IFREG; 527 break; 528 case VDIR: 529 mode |= S_IFDIR; 530 break; 531 case VBLK: 532 mode |= S_IFBLK; 533 break; 534 case VCHR: 535 mode |= S_IFCHR; 536 break; 537 case VLNK: 538 mode |= S_IFLNK; 539 break; 540 case VSOCK: 541 mode |= S_IFSOCK; 542 break; 543 case VFIFO: 544 mode |= S_IFIFO; 545 break; 546 case VNON: 547 case VBAD: 548 return 0; 549 }; 550 fsp->mode = mode; 551 552 return 1; 553 } 554 555 556 char * 557 getmnton(m) 558 struct mount *m; 559 { 560 static struct mount mount; 561 static struct mtab { 562 struct mtab *next; 563 struct mount *m; 564 char mntonname[MNAMELEN]; 565 } *mhead = NULL; 566 register struct mtab *mt; 567 568 for (mt = mhead; mt != NULL; mt = mt->next) 569 if (m == mt->m) 570 return (mt->mntonname); 571 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 572 warnx("can't read mount table at %p", (void *)m); 573 return (NULL); 574 } 575 if ((mt = malloc(sizeof (struct mtab))) == NULL) 576 err(1, NULL); 577 mt->m = m; 578 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 579 mt->next = mhead; 580 mhead = mt; 581 return (mt->mntonname); 582 } 583 584 void 585 pipetrans(pi, i, flag) 586 struct pipe *pi; 587 int i; 588 int flag; 589 { 590 struct pipe pip; 591 char rw[3]; 592 593 PREFIX(i); 594 595 /* fill in socket */ 596 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 597 dprintf(stderr, "can't read pipe at %p\n", (void *)pi); 598 goto bad; 599 } 600 601 printf("* pipe %8x <-> %8x", (int)pi, (int)pip.pipe_peer); 602 printf(" %6d", (int)pip.pipe_buffer.cnt); 603 rw[0] = '\0'; 604 if (flag & FREAD) 605 strcat(rw, "r"); 606 if (flag & FWRITE) 607 strcat(rw, "w"); 608 printf(" %2s", rw); 609 putchar('\n'); 610 return; 611 612 bad: 613 printf("* error\n"); 614 } 615 616 void 617 socktrans(sock, i) 618 struct socket *sock; 619 int i; 620 { 621 static char *stypename[] = { 622 "unused", /* 0 */ 623 "stream", /* 1 */ 624 "dgram", /* 2 */ 625 "raw", /* 3 */ 626 "rdm", /* 4 */ 627 "seqpak" /* 5 */ 628 }; 629 #define STYPEMAX 5 630 struct socket so; 631 struct protosw proto; 632 struct domain dom; 633 struct inpcb inpcb; 634 struct unpcb unpcb; 635 int len; 636 char dname[32], *strcpy(); 637 638 PREFIX(i); 639 640 /* fill in socket */ 641 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 642 dprintf(stderr, "can't read sock at %p\n", (void *)sock); 643 goto bad; 644 } 645 646 /* fill in protosw entry */ 647 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 648 dprintf(stderr, "can't read protosw at %p", 649 (void *)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 %p\n", 656 (void *)proto.pr_domain); 657 goto bad; 658 } 659 660 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 661 sizeof(dname) - 1)) < 0) { 662 dprintf(stderr, "can't read domain name at %p\n", 663 (void *)dom.dom_name); 664 dname[0] = '\0'; 665 } 666 else 667 dname[len] = '\0'; 668 669 if ((u_short)so.so_type > STYPEMAX) 670 printf("* %s ?%d", dname, so.so_type); 671 else 672 printf("* %s %s", dname, stypename[so.so_type]); 673 674 /* 675 * protocol specific formatting 676 * 677 * Try to find interesting things to print. For tcp, the interesting 678 * thing is the address of the tcpcb, for udp and others, just the 679 * inpcb (socket pcb). For unix domain, its the address of the socket 680 * pcb and the address of the connected pcb (if connected). Otherwise 681 * just print the protocol number and address of the socket itself. 682 * The idea is not to duplicate netstat, but to make available enough 683 * information for further analysis. 684 */ 685 switch(dom.dom_family) { 686 case AF_INET: 687 case AF_INET6: 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 %p\n", 696 (void *)so.so_pcb); 697 goto bad; 698 } 699 printf(" %x", (int)inpcb.inp_ppcb); 700 } 701 } 702 else if (so.so_pcb) 703 printf(" %x", (int)so.so_pcb); 704 break; 705 case AF_UNIX: 706 /* print address of pcb and connected pcb */ 707 if (so.so_pcb) { 708 printf(" %x", (int)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 %p\n", 712 (void *)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 %x", shoconn, 726 (int)unpcb.unp_conn); 727 } 728 } 729 break; 730 default: 731 /* print protocol number and socket address */ 732 printf(" %d %x", proto.pr_protocol, (int)sock); 733 } 734 printf("\n"); 735 return; 736 bad: 737 printf("* error\n"); 738 } 739 740 741 /* 742 * Read the specinfo structure in the kernel (as pointed to by a dev_t) 743 * in order to work out the associated udev_t 744 */ 745 udev_t 746 dev2udev(dev) 747 dev_t dev; 748 { 749 struct specinfo si; 750 751 if (KVM_READ(dev, &si, sizeof si)) { 752 return si.si_udev; 753 } else { 754 dprintf(stderr, "can't convert dev_t %p to a udev_t\n", 755 (void *)dev); 756 return -1; 757 } 758 } 759 760 /* 761 * getinetproto -- 762 * print name of protocol number 763 */ 764 void 765 getinetproto(number) 766 int number; 767 { 768 static int isopen; 769 register struct protoent *pe; 770 771 if (!isopen) 772 setprotoent(++isopen); 773 if ((pe = getprotobynumber(number)) != NULL) 774 printf(" %s", pe->p_name); 775 else 776 printf(" %d", number); 777 } 778 779 int 780 getfname(filename) 781 char *filename; 782 { 783 struct stat statbuf; 784 DEVS *cur; 785 786 if (stat(filename, &statbuf)) { 787 warn("%s", filename); 788 return(0); 789 } 790 if ((cur = malloc(sizeof(DEVS))) == NULL) 791 err(1, NULL); 792 cur->next = devs; 793 devs = cur; 794 795 cur->ino = statbuf.st_ino; 796 cur->fsid = statbuf.st_dev & 0xffff; 797 cur->name = filename; 798 return(1); 799 } 800 801 void 802 usage() 803 { 804 (void)fprintf(stderr, 805 "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 806 exit(1); 807 } 808