fstat.c revision 1.32
1 /* $NetBSD: fstat.c,v 1.32 1998/07/28 21:16:42 mycroft 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 1.32 1998/07/28 21:16:42 mycroft 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, "malloc(%u)", (d) * \ 139 (unsigned int)sizeof(struct file *)); \ 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 *)); 153 int ext2fs_filestat __P((struct vnode *, struct filestat *)); 154 int getfname __P((char *)); 155 void getinetproto __P((int)); 156 char *getmnton __P((struct mount *)); 157 int main __P((int, char **)); 158 int nfs_filestat __P((struct vnode *, struct filestat *)); 159 void socktrans __P((struct socket *, int)); 160 int ufs_filestat __P((struct vnode *, struct filestat *)); 161 void usage __P((void)); 162 void vtrans __P((struct vnode *, int, int)); 163 164 int 165 main(argc, argv) 166 int argc; 167 char **argv; 168 { 169 struct passwd *passwd; 170 struct kinfo_proc *p, *plast; 171 int arg, ch, what; 172 char *memf, *nlistf; 173 char buf[_POSIX2_LINE_MAX]; 174 int cnt; 175 gid_t egid = getegid(); 176 177 (void)setegid(getgid()); 178 arg = 0; 179 what = KERN_PROC_ALL; 180 nlistf = memf = NULL; 181 while ((ch = getopt(argc, argv, "fnp:u:vN:M:")) != -1) 182 switch((char)ch) { 183 case 'f': 184 fsflg = 1; 185 break; 186 case 'M': 187 memf = optarg; 188 break; 189 case 'N': 190 nlistf = optarg; 191 break; 192 case 'n': 193 nflg = 1; 194 break; 195 case 'p': 196 if (pflg++) 197 usage(); 198 if (!isdigit(*optarg)) { 199 warnx("-p requires a process id\n"); 200 usage(); 201 } 202 what = KERN_PROC_PID; 203 arg = atoi(optarg); 204 break; 205 case 'u': 206 if (uflg++) 207 usage(); 208 if (!(passwd = getpwnam(optarg))) { 209 errx(1, "%s: unknown uid\n", optarg); 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, we toss 242 * them away totally so that bad guys can't print interesting stuff 243 * from kernel memory, otherwise switch back to kmem for the 244 * duration of the kvm_openfiles() call. 245 */ 246 if (nlistf != NULL || memf != NULL) 247 (void)setgid(getgid()); 248 else 249 (void)setegid(egid); 250 251 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 252 errx(1, "%s", buf); 253 254 /* get rid of it now anyway */ 255 if (nlistf == NULL && memf == NULL) 256 (void)setgid(getgid()); 257 258 #ifdef notdef 259 if (kvm_nlist(kd, nl) != 0) { 260 errx(1, "no namelist: %s\n", kvm_geterr(kd)); 261 } 262 #endif 263 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) { 264 errx(1, "%s\n", kvm_geterr(kd)); 265 } 266 if (nflg) 267 printf("%s", 268 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 269 else 270 printf("%s", 271 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 272 if (checkfile && fsflg == 0) 273 printf(" NAME\n"); 274 else 275 putchar('\n'); 276 277 for (plast = &p[cnt]; p < plast; ++p) { 278 if (p->kp_proc.p_stat == SZOMB) 279 continue; 280 dofiles(p); 281 } 282 exit(0); 283 } 284 285 const char *Uname; 286 char *Comm; 287 int Pid; 288 289 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 290 switch(i) { \ 291 case TEXT: \ 292 printf(" text"); \ 293 break; \ 294 case CDIR: \ 295 printf(" wd"); \ 296 break; \ 297 case RDIR: \ 298 printf(" root"); \ 299 break; \ 300 case TRACE: \ 301 printf(" tr"); \ 302 break; \ 303 default: \ 304 printf(" %4d", i); \ 305 break; \ 306 } 307 308 /* 309 * print open files attributed to this process 310 */ 311 void 312 dofiles(kp) 313 struct kinfo_proc *kp; 314 { 315 int i; 316 struct file file; 317 struct filedesc0 filed0; 318 #define filed filed0.fd_fd 319 struct proc *p = &kp->kp_proc; 320 struct eproc *ep = &kp->kp_eproc; 321 322 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 323 Pid = p->p_pid; 324 Comm = p->p_comm; 325 326 if (p->p_fd == NULL) 327 return; 328 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 329 dprintf(stderr, "can't read filedesc at %lx for pid %d\n", 330 (long)p->p_fd, Pid); 331 return; 332 } 333 if (filed.fd_nfiles < 0 || filed.fd_lastfile >= filed.fd_nfiles || 334 filed.fd_freefile > filed.fd_lastfile + 1) { 335 dprintf(stderr, "filedesc corrupted at %lx for pid %d\n", 336 (long)p->p_fd, Pid); 337 return; 338 } 339 /* 340 * root directory vnode, if one 341 */ 342 if (filed.fd_rdir) 343 vtrans(filed.fd_rdir, RDIR, FREAD); 344 /* 345 * current working directory vnode 346 */ 347 vtrans(filed.fd_cdir, CDIR, FREAD); 348 /* 349 * ktrace vnode, if one 350 */ 351 if (p->p_tracep) 352 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 353 /* 354 * open files 355 */ 356 #define FPSIZE (sizeof (struct file *)) 357 ALLOC_OFILES(filed.fd_lastfile+1); 358 if (filed.fd_nfiles > NDFILE) { 359 if (!KVM_READ(filed.fd_ofiles, ofiles, 360 (filed.fd_lastfile+1) * FPSIZE)) { 361 dprintf(stderr, 362 "can't read file structures at %lx for pid %d\n", 363 (long)filed.fd_ofiles, Pid); 364 return; 365 } 366 } else 367 memmove(ofiles, filed0.fd_dfiles, 368 (filed.fd_lastfile+1) * FPSIZE); 369 for (i = 0; i <= filed.fd_lastfile; i++) { 370 if (ofiles[i] == NULL) 371 continue; 372 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 373 dprintf(stderr, 374 "can't read file %d at %lx for pid %d\n", 375 i, (long)ofiles[i], Pid); 376 continue; 377 } 378 if (file.f_type == DTYPE_VNODE) 379 vtrans((struct vnode *)file.f_data, i, file.f_flag); 380 else if (file.f_type == DTYPE_SOCKET) { 381 if (checkfile == 0) 382 socktrans((struct socket *)file.f_data, i); 383 } 384 else { 385 dprintf(stderr, 386 "unknown file type %d for file %d of pid %d\n", 387 file.f_type, i, Pid); 388 } 389 } 390 } 391 392 void 393 vtrans(vp, i, flag) 394 struct vnode *vp; 395 int i; 396 int flag; 397 { 398 struct vnode vn; 399 struct filestat fst; 400 char mode[15]; 401 char *badtype = NULL, *filename; 402 403 filename = badtype = NULL; 404 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 405 dprintf(stderr, "can't read vnode at %lx for pid %d\n", 406 (long)vp, Pid); 407 return; 408 } 409 if (vn.v_type == VNON || vn.v_tag == VT_NON) 410 badtype = "none"; 411 else if (vn.v_type == VBAD) 412 badtype = "bad"; 413 else 414 switch (vn.v_tag) { 415 case VT_UFS: 416 if (!ufs_filestat(&vn, &fst)) 417 badtype = "error"; 418 break; 419 case VT_MFS: 420 if (!ufs_filestat(&vn, &fst)) 421 badtype = "error"; 422 break; 423 case VT_NFS: 424 if (!nfs_filestat(&vn, &fst)) 425 badtype = "error"; 426 break; 427 case VT_EXT2FS: 428 if (!ext2fs_filestat(&vn, &fst)) 429 badtype = "error"; 430 break; 431 default: { 432 static char unknown[10]; 433 (void)snprintf(badtype = unknown, sizeof unknown, 434 "?(%x)", vn.v_tag); 435 break;; 436 } 437 } 438 if (checkfile) { 439 int fsmatch = 0; 440 DEVS *d; 441 442 if (badtype) 443 return; 444 for (d = devs; d != NULL; d = d->next) 445 if (d->fsid == fst.fsid) { 446 fsmatch = 1; 447 if (d->ino == fst.fileid) { 448 filename = d->name; 449 break; 450 } 451 } 452 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 453 return; 454 } 455 PREFIX(i); 456 if (badtype) { 457 (void)printf(" - - %10s -\n", badtype); 458 return; 459 } 460 if (nflg) 461 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 462 else 463 (void)printf(" %-8s", getmnton(vn.v_mount)); 464 if (nflg) 465 (void)snprintf(mode, sizeof mode, "%o", fst.mode); 466 else 467 strmode(fst.mode, mode); 468 (void)printf(" %6ld %10s", (long)fst.fileid, mode); 469 switch (vn.v_type) { 470 case VBLK: 471 case VCHR: { 472 char *name; 473 474 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 475 S_IFCHR : S_IFBLK)) == NULL)) 476 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 477 else 478 printf(" %6s", name); 479 break; 480 } 481 default: 482 printf(" %6ld", (long)fst.size); 483 } 484 putchar(' '); 485 if (flag & FREAD) 486 putchar('r'); 487 if (flag & FWRITE) 488 putchar('w'); 489 if (filename && !fsflg) 490 printf(" %s", filename); 491 putchar('\n'); 492 } 493 494 int 495 ufs_filestat(vp, fsp) 496 struct vnode *vp; 497 struct filestat *fsp; 498 { 499 struct inode inode; 500 501 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 502 dprintf(stderr, "can't read inode at %lx for pid %d\n", 503 (long)VTOI(vp), Pid); 504 return 0; 505 } 506 fsp->fsid = inode.i_dev & 0xffff; 507 fsp->fileid = (long)inode.i_number; 508 fsp->mode = (mode_t)inode.i_ffs_mode; 509 fsp->size = (u_long)inode.i_ffs_size; 510 fsp->rdev = inode.i_ffs_rdev; 511 512 return 1; 513 } 514 515 int 516 ext2fs_filestat(vp, fsp) 517 struct vnode *vp; 518 struct filestat *fsp; 519 { 520 struct inode inode; 521 522 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 523 dprintf(stderr, "can't read inode at %lx for pid %d\n", 524 (long)VTOI(vp), Pid); 525 return 0; 526 } 527 fsp->fsid = inode.i_dev & 0xffff; 528 fsp->fileid = (long)inode.i_number; 529 fsp->mode = (mode_t)inode.i_e2fs_mode; 530 fsp->size = (u_long)inode.i_e2fs_size; 531 fsp->rdev = 0; /* XXX */ 532 return 1; 533 } 534 535 int 536 nfs_filestat(vp, fsp) 537 struct vnode *vp; 538 struct filestat *fsp; 539 { 540 struct nfsnode nfsnode; 541 struct vattr va; 542 mode_t mode; 543 544 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 545 dprintf(stderr, "can't read nfsnode at 0x%lx for pid %d\n", 546 (u_long)VTONFS(vp), Pid); 547 return 0; 548 } 549 if (!KVM_READ(nfsnode.n_vattr, &va, sizeof(va))) { 550 dprintf(stderr, 551 "can't read vnode attributes at 0x%lx for pid %d\n", 552 (u_long)nfsnode.n_vattr, Pid); 553 return 0; 554 } 555 fsp->fsid = va.va_fsid; 556 fsp->fileid = va.va_fileid; 557 fsp->size = nfsnode.n_size; 558 fsp->rdev = va.va_rdev; 559 mode = (mode_t)va.va_mode; 560 switch (vp->v_type) { 561 case VREG: 562 mode |= S_IFREG; 563 break; 564 case VDIR: 565 mode |= S_IFDIR; 566 break; 567 case VBLK: 568 mode |= S_IFBLK; 569 break; 570 case VCHR: 571 mode |= S_IFCHR; 572 break; 573 case VLNK: 574 mode |= S_IFLNK; 575 break; 576 case VSOCK: 577 mode |= S_IFSOCK; 578 break; 579 case VFIFO: 580 mode |= S_IFIFO; 581 break; 582 default: 583 break; 584 }; 585 fsp->mode = mode; 586 587 return 1; 588 } 589 590 591 char * 592 getmnton(m) 593 struct mount *m; 594 { 595 static struct mount mount; 596 static struct mtab { 597 struct mtab *next; 598 struct mount *m; 599 char mntonname[MNAMELEN]; 600 } *mhead = NULL; 601 struct mtab *mt; 602 603 for (mt = mhead; mt != NULL; mt = mt->next) 604 if (m == mt->m) 605 return (mt->mntonname); 606 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 607 warnx("can't read mount table at %lx\n", (long)m); 608 return (NULL); 609 } 610 if ((mt = malloc(sizeof (struct mtab))) == NULL) { 611 err(1, "malloc(%u)", (unsigned int)sizeof(struct mtab)); 612 } 613 mt->m = m; 614 memmove(&mt->mntonname[0], &mount.mnt_stat.f_mntonname[0], MNAMELEN); 615 mt->next = mhead; 616 mhead = mt; 617 return (mt->mntonname); 618 } 619 620 void 621 socktrans(sock, i) 622 struct socket *sock; 623 int i; 624 { 625 static char *stypename[] = { 626 "unused", /* 0 */ 627 "stream", /* 1 */ 628 "dgram", /* 2 */ 629 "raw", /* 3 */ 630 "rdm", /* 4 */ 631 "seqpak" /* 5 */ 632 }; 633 #define STYPEMAX 5 634 struct socket so; 635 struct protosw proto; 636 struct domain dom; 637 struct inpcb inpcb; 638 struct unpcb unpcb; 639 int len; 640 char dname[32]; 641 642 PREFIX(i); 643 644 /* fill in socket */ 645 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 646 dprintf(stderr, "can't read sock at %lx\n", (long)sock); 647 goto bad; 648 } 649 650 /* fill in protosw entry */ 651 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 652 dprintf(stderr, "can't read protosw at %lx", (long)so.so_proto); 653 goto bad; 654 } 655 656 /* fill in domain */ 657 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 658 dprintf(stderr, "can't read domain at %lx\n", 659 (long)proto.pr_domain); 660 goto bad; 661 } 662 663 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 664 sizeof(dname) - 1)) != sizeof(dname) -1) { 665 dprintf(stderr, "can't read domain name at %lx\n", 666 (long)dom.dom_name); 667 dname[0] = '\0'; 668 } 669 else 670 dname[len] = '\0'; 671 672 if ((u_short)so.so_type > STYPEMAX) 673 printf("* %s ?%d", dname, so.so_type); 674 else 675 printf("* %s %s", dname, stypename[so.so_type]); 676 677 /* 678 * protocol specific formatting 679 * 680 * Try to find interesting things to print. For tcp, the interesting 681 * thing is the address of the tcpcb, for udp and others, just the 682 * inpcb (socket pcb). For unix domain, its the address of the socket 683 * pcb and the address of the connected pcb (if connected). Otherwise 684 * just print the protocol number and address of the socket itself. 685 * The idea is not to duplicate netstat, but to make available enough 686 * information for further analysis. 687 */ 688 switch(dom.dom_family) { 689 case AF_INET: 690 getinetproto(proto.pr_protocol); 691 if (proto.pr_protocol == IPPROTO_TCP ) { 692 if (so.so_pcb) { 693 if (kvm_read(kd, (u_long)so.so_pcb, 694 (char *)&inpcb, sizeof(struct inpcb)) 695 != sizeof(struct inpcb)) { 696 dprintf(stderr, 697 "can't read inpcb at %lx\n", 698 (long)so.so_pcb); 699 goto bad; 700 } 701 printf(" %lx", (long)inpcb.inp_ppcb); 702 } 703 } 704 else if (so.so_pcb) 705 printf(" %lx", (long)so.so_pcb); 706 break; 707 case AF_LOCAL: 708 /* print address of pcb and connected pcb */ 709 if (so.so_pcb) { 710 printf(" %lx", (long)so.so_pcb); 711 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 712 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 713 dprintf(stderr, "can't read unpcb at %lx\n", 714 (long)so.so_pcb); 715 goto bad; 716 } 717 if (unpcb.unp_conn) { 718 char shoconn[4], *cp; 719 720 cp = shoconn; 721 if (!(so.so_state & SS_CANTRCVMORE)) 722 *cp++ = '<'; 723 *cp++ = '-'; 724 if (!(so.so_state & SS_CANTSENDMORE)) 725 *cp++ = '>'; 726 *cp = '\0'; 727 printf(" %s %lx", shoconn, 728 (long)unpcb.unp_conn); 729 } 730 } 731 break; 732 default: 733 /* print protocol number and socket address */ 734 printf(" %d %lx", proto.pr_protocol, (long)sock); 735 } 736 printf("\n"); 737 return; 738 bad: 739 printf("* error\n"); 740 } 741 742 /* 743 * getinetproto -- 744 * print name of protocol number 745 */ 746 void 747 getinetproto(number) 748 int number; 749 { 750 char *cp; 751 752 switch (number) { 753 case IPPROTO_IP: 754 cp = "ip"; break; 755 case IPPROTO_ICMP: 756 cp ="icmp"; break; 757 case IPPROTO_GGP: 758 cp ="ggp"; break; 759 case IPPROTO_TCP: 760 cp ="tcp"; break; 761 case IPPROTO_EGP: 762 cp ="egp"; break; 763 case IPPROTO_PUP: 764 cp ="pup"; break; 765 case IPPROTO_UDP: 766 cp ="udp"; break; 767 case IPPROTO_IDP: 768 cp ="idp"; break; 769 case IPPROTO_RAW: 770 cp ="raw"; break; 771 default: 772 printf(" %d", number); 773 return; 774 } 775 printf(" %s", cp); 776 } 777 778 int 779 getfname(filename) 780 char *filename; 781 { 782 struct stat statbuf; 783 DEVS *cur; 784 785 if (stat(filename, &statbuf)) { 786 warn("stat(%s)", filename); 787 return(0); 788 } 789 if ((cur = malloc(sizeof(DEVS))) == NULL) { 790 err(1, "malloc(%u)", (unsigned int)sizeof(DEVS)); 791 } 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 errx(1, 805 "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 806 } 807
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