fstat.c revision 1.35
1 /* $NetBSD: fstat.c,v 1.35 1999/05/02 22:50:19 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 1.35 1999/05/02 22:50:19 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 <arpa/inet.h> 83 84 #include <ctype.h> 85 #include <errno.h> 86 #include <kvm.h> 87 #include <limits.h> 88 #include <nlist.h> 89 #include <paths.h> 90 #include <pwd.h> 91 #include <stdio.h> 92 #include <stdlib.h> 93 #include <string.h> 94 #include <unistd.h> 95 #include <err.h> 96 97 #include "fstat.h" 98 99 #define TEXT -1 100 #define CDIR -2 101 #define RDIR -3 102 #define TRACE -4 103 104 typedef struct devs { 105 struct devs *next; 106 long fsid; 107 ino_t ino; 108 char *name; 109 } DEVS; 110 DEVS *devs; 111 112 int fsflg, /* show files on same filesystem as file(s) argument */ 113 pflg, /* show files open by a particular pid */ 114 uflg; /* show files open by a particular (effective) user */ 115 int checkfile; /* true if restricting to particular files or filesystems */ 116 int nflg; /* (numerical) display f.s. and rdev as dev_t */ 117 int vflg; /* display errors in locating kernel data objects etc... */ 118 119 struct file **ofiles; /* buffer of pointers to file structures */ 120 int maxfiles; 121 #define ALLOC_OFILES(d) \ 122 if ((d) > maxfiles) { \ 123 free(ofiles); \ 124 ofiles = malloc((d) * sizeof(struct file *)); \ 125 if (ofiles == NULL) { \ 126 err(1, "malloc(%u)", (d) * \ 127 (unsigned int)sizeof(struct file *)); \ 128 } \ 129 maxfiles = (d); \ 130 } 131 132 kvm_t *kd; 133 134 void dofiles __P((struct kinfo_proc *)); 135 int ext2fs_filestat __P((struct vnode *, struct filestat *)); 136 int getfname __P((char *)); 137 void getinetproto __P((int)); 138 char *getmnton __P((struct mount *)); 139 int main __P((int, char **)); 140 int nfs_filestat __P((struct vnode *, struct filestat *)); 141 void socktrans __P((struct socket *, int)); 142 int ufs_filestat __P((struct vnode *, struct filestat *)); 143 void usage __P((void)); 144 void vtrans __P((struct vnode *, int, int)); 145 146 int 147 main(argc, argv) 148 int argc; 149 char **argv; 150 { 151 struct passwd *passwd; 152 struct kinfo_proc *p, *plast; 153 int arg, ch, what; 154 char *memf, *nlistf; 155 char buf[_POSIX2_LINE_MAX]; 156 int cnt; 157 gid_t egid = getegid(); 158 159 (void)setegid(getgid()); 160 arg = 0; 161 what = KERN_PROC_ALL; 162 nlistf = memf = NULL; 163 while ((ch = getopt(argc, argv, "fnp:u:vN:M:")) != -1) 164 switch((char)ch) { 165 case 'f': 166 fsflg = 1; 167 break; 168 case 'M': 169 memf = optarg; 170 break; 171 case 'N': 172 nlistf = optarg; 173 break; 174 case 'n': 175 nflg = 1; 176 break; 177 case 'p': 178 if (pflg++) 179 usage(); 180 if (!isdigit(*optarg)) { 181 warnx("-p requires a process id"); 182 usage(); 183 } 184 what = KERN_PROC_PID; 185 arg = atoi(optarg); 186 break; 187 case 'u': 188 if (uflg++) 189 usage(); 190 if (!(passwd = getpwnam(optarg))) { 191 errx(1, "%s: unknown uid", optarg); 192 } 193 what = KERN_PROC_UID; 194 arg = passwd->pw_uid; 195 break; 196 case 'v': 197 vflg = 1; 198 break; 199 case '?': 200 default: 201 usage(); 202 } 203 204 if (*(argv += optind)) { 205 for (; *argv; ++argv) { 206 if (getfname(*argv)) 207 checkfile = 1; 208 } 209 if (!checkfile) /* file(s) specified, but none accessable */ 210 exit(1); 211 } 212 213 ALLOC_OFILES(256); /* reserve space for file pointers */ 214 215 if (fsflg && !checkfile) { 216 /* -f with no files means use wd */ 217 if (getfname(".") == 0) 218 exit(1); 219 checkfile = 1; 220 } 221 222 /* 223 * Discard setgid privileges. If not the running kernel, we toss 224 * them away totally so that bad guys can't print interesting stuff 225 * from kernel memory, otherwise switch back to kmem for the 226 * duration of the kvm_openfiles() call. 227 */ 228 if (nlistf != NULL || memf != NULL) 229 (void)setgid(getgid()); 230 else 231 (void)setegid(egid); 232 233 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 234 errx(1, "%s", buf); 235 236 /* get rid of it now anyway */ 237 if (nlistf == NULL && memf == NULL) 238 (void)setgid(getgid()); 239 240 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) { 241 errx(1, "%s", kvm_geterr(kd)); 242 } 243 if (nflg) 244 printf("%s", 245 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 246 else 247 printf("%s", 248 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 249 if (checkfile && fsflg == 0) 250 printf(" NAME\n"); 251 else 252 putchar('\n'); 253 254 for (plast = &p[cnt]; p < plast; ++p) { 255 if (p->kp_proc.p_stat == SZOMB) 256 continue; 257 dofiles(p); 258 } 259 exit(0); 260 } 261 262 const char *Uname, *Comm; 263 pid_t Pid; 264 265 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 266 switch(i) { \ 267 case TEXT: \ 268 printf(" text"); \ 269 break; \ 270 case CDIR: \ 271 printf(" wd"); \ 272 break; \ 273 case RDIR: \ 274 printf(" root"); \ 275 break; \ 276 case TRACE: \ 277 printf(" tr"); \ 278 break; \ 279 default: \ 280 printf(" %4d", i); \ 281 break; \ 282 } 283 284 /* 285 * print open files attributed to this process 286 */ 287 void 288 dofiles(kp) 289 struct kinfo_proc *kp; 290 { 291 int i; 292 struct file file; 293 struct filedesc0 filed0; 294 #define filed filed0.fd_fd 295 struct cwdinfo cwdi; 296 struct proc *p = &kp->kp_proc; 297 struct eproc *ep = &kp->kp_eproc; 298 299 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 300 Pid = p->p_pid; 301 Comm = p->p_comm; 302 303 if (p->p_fd == NULL || p->p_cwdi == NULL) 304 return; 305 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 306 warnx("can't read filedesc at %p for pid %d", p->p_fd, Pid); 307 return; 308 } 309 if (!KVM_READ(p->p_cwdi, &cwdi, sizeof(cwdi))) { 310 warnx("can't read cwdinfo at %p for pid %d", p->p_cwdi, Pid); 311 return; 312 } 313 if (filed.fd_nfiles < 0 || filed.fd_lastfile >= filed.fd_nfiles || 314 filed.fd_freefile > filed.fd_lastfile + 1) { 315 dprintf("filedesc corrupted at %p for pid %d", p->p_fd, Pid); 316 return; 317 } 318 /* 319 * root directory vnode, if one 320 */ 321 if (cwdi.cwdi_rdir) 322 vtrans(cwdi.cwdi_rdir, RDIR, FREAD); 323 /* 324 * current working directory vnode 325 */ 326 vtrans(cwdi.cwdi_cdir, CDIR, FREAD); 327 /* 328 * ktrace vnode, if one 329 */ 330 if (p->p_tracep) 331 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 332 /* 333 * open files 334 */ 335 #define FPSIZE (sizeof (struct file *)) 336 ALLOC_OFILES(filed.fd_lastfile+1); 337 if (filed.fd_nfiles > NDFILE) { 338 if (!KVM_READ(filed.fd_ofiles, ofiles, 339 (filed.fd_lastfile+1) * FPSIZE)) { 340 dprintf("can't read file structures at %p for pid %d", 341 filed.fd_ofiles, Pid); 342 return; 343 } 344 } else 345 memmove(ofiles, filed0.fd_dfiles, 346 (filed.fd_lastfile+1) * FPSIZE); 347 for (i = 0; i <= filed.fd_lastfile; i++) { 348 if (ofiles[i] == NULL) 349 continue; 350 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 351 dprintf("can't read file %d at %p for pid %d", 352 i, ofiles[i], Pid); 353 continue; 354 } 355 if (file.f_type == DTYPE_VNODE) 356 vtrans((struct vnode *)file.f_data, i, file.f_flag); 357 else if (file.f_type == DTYPE_SOCKET) { 358 if (checkfile == 0) 359 socktrans((struct socket *)file.f_data, i); 360 } 361 else { 362 dprintf("unknown file type %d for file %d of pid %d", 363 file.f_type, i, Pid); 364 } 365 } 366 } 367 368 void 369 vtrans(vp, i, flag) 370 struct vnode *vp; 371 int i; 372 int flag; 373 { 374 struct vnode vn; 375 struct filestat fst; 376 char mode[15], rw[3]; 377 char *badtype = NULL, *filename; 378 379 filename = badtype = NULL; 380 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 381 dprintf("can't read vnode at %p for pid %d", vp, Pid); 382 return; 383 } 384 if (vn.v_type == VNON || vn.v_tag == VT_NON) 385 badtype = "none"; 386 else if (vn.v_type == VBAD) 387 badtype = "bad"; 388 else 389 switch (vn.v_tag) { 390 case VT_UFS: 391 if (!ufs_filestat(&vn, &fst)) 392 badtype = "error"; 393 break; 394 case VT_MFS: 395 if (!ufs_filestat(&vn, &fst)) 396 badtype = "error"; 397 break; 398 case VT_NFS: 399 if (!nfs_filestat(&vn, &fst)) 400 badtype = "error"; 401 break; 402 case VT_EXT2FS: 403 if (!ext2fs_filestat(&vn, &fst)) 404 badtype = "error"; 405 break; 406 case VT_ISOFS: 407 if (!isofs_filestat(&vn, &fst)) 408 badtype = "error"; 409 break; 410 default: { 411 static char unknown[10]; 412 (void)snprintf(badtype = unknown, sizeof unknown, 413 "?(%x)", vn.v_tag); 414 break;; 415 } 416 } 417 if (checkfile) { 418 int fsmatch = 0; 419 DEVS *d; 420 421 if (badtype) 422 return; 423 for (d = devs; d != NULL; d = d->next) 424 if (d->fsid == fst.fsid) { 425 fsmatch = 1; 426 if (d->ino == fst.fileid) { 427 filename = d->name; 428 break; 429 } 430 } 431 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 432 return; 433 } 434 PREFIX(i); 435 if (badtype) { 436 (void)printf(" - - %10s -\n", badtype); 437 return; 438 } 439 if (nflg) 440 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 441 else 442 (void)printf(" %-8s", getmnton(vn.v_mount)); 443 if (nflg) 444 (void)snprintf(mode, sizeof mode, "%o", fst.mode); 445 else 446 strmode(fst.mode, mode); 447 (void)printf(" %6ld %10s", (long)fst.fileid, mode); 448 switch (vn.v_type) { 449 case VBLK: 450 case VCHR: { 451 char *name; 452 453 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 454 S_IFCHR : S_IFBLK)) == NULL)) 455 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 456 else 457 printf(" %6s", name); 458 break; 459 } 460 default: 461 printf(" %6qd", (long long)fst.size); 462 } 463 rw[0] = '\0'; 464 if (flag & FREAD) 465 strcat(rw, "r"); 466 if (flag & FWRITE) 467 strcat(rw, "w"); 468 printf(" %-2s", rw); 469 if (filename && !fsflg) 470 printf(" %s", filename); 471 putchar('\n'); 472 } 473 474 int 475 ufs_filestat(vp, fsp) 476 struct vnode *vp; 477 struct filestat *fsp; 478 { 479 struct inode inode; 480 481 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 482 dprintf("can't read inode at %p for pid %d", VTOI(vp), Pid); 483 return 0; 484 } 485 fsp->fsid = inode.i_dev & 0xffff; 486 fsp->fileid = (long)inode.i_number; 487 fsp->mode = (mode_t)inode.i_ffs_mode; 488 fsp->size = inode.i_ffs_size; 489 fsp->rdev = inode.i_ffs_rdev; 490 491 return 1; 492 } 493 494 int 495 ext2fs_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("can't read inode at %p for pid %d", VTOI(vp), Pid); 503 return 0; 504 } 505 fsp->fsid = inode.i_dev & 0xffff; 506 fsp->fileid = (long)inode.i_number; 507 fsp->mode = (mode_t)inode.i_e2fs_mode; 508 fsp->size = inode.i_e2fs_size; 509 fsp->rdev = 0; /* XXX */ 510 return 1; 511 } 512 513 int 514 nfs_filestat(vp, fsp) 515 struct vnode *vp; 516 struct filestat *fsp; 517 { 518 struct nfsnode nfsnode; 519 struct vattr va; 520 mode_t mode; 521 522 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 523 dprintf("can't read nfsnode at %p for pid %d", VTONFS(vp), 524 Pid); 525 return 0; 526 } 527 if (!KVM_READ(nfsnode.n_vattr, &va, sizeof(va))) { 528 dprintf("can't read vnode attributes at %p for pid %d", 529 nfsnode.n_vattr, Pid); 530 return 0; 531 } 532 fsp->fsid = va.va_fsid; 533 fsp->fileid = va.va_fileid; 534 fsp->size = nfsnode.n_size; 535 fsp->rdev = va.va_rdev; 536 mode = (mode_t)va.va_mode; 537 switch (vp->v_type) { 538 case VREG: 539 mode |= S_IFREG; 540 break; 541 case VDIR: 542 mode |= S_IFDIR; 543 break; 544 case VBLK: 545 mode |= S_IFBLK; 546 break; 547 case VCHR: 548 mode |= S_IFCHR; 549 break; 550 case VLNK: 551 mode |= S_IFLNK; 552 break; 553 case VSOCK: 554 mode |= S_IFSOCK; 555 break; 556 case VFIFO: 557 mode |= S_IFIFO; 558 break; 559 default: 560 break; 561 }; 562 fsp->mode = mode; 563 564 return 1; 565 } 566 567 568 char * 569 getmnton(m) 570 struct mount *m; 571 { 572 static struct mount mount; 573 static struct mtab { 574 struct mtab *next; 575 struct mount *m; 576 char mntonname[MNAMELEN]; 577 } *mhead = NULL; 578 struct mtab *mt; 579 580 for (mt = mhead; mt != NULL; mt = mt->next) 581 if (m == mt->m) 582 return (mt->mntonname); 583 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 584 warnx("can't read mount table at %p", m); 585 return (NULL); 586 } 587 if ((mt = malloc(sizeof (struct mtab))) == NULL) { 588 err(1, "malloc(%u)", (unsigned int)sizeof(struct mtab)); 589 } 590 mt->m = m; 591 memmove(&mt->mntonname[0], &mount.mnt_stat.f_mntonname[0], MNAMELEN); 592 mt->next = mhead; 593 mhead = mt; 594 return (mt->mntonname); 595 } 596 597 void 598 socktrans(sock, i) 599 struct socket *sock; 600 int i; 601 { 602 static char *stypename[] = { 603 "unused", /* 0 */ 604 "stream", /* 1 */ 605 "dgram", /* 2 */ 606 "raw", /* 3 */ 607 "rdm", /* 4 */ 608 "seqpak" /* 5 */ 609 }; 610 #define STYPEMAX 5 611 struct socket so; 612 struct protosw proto; 613 struct domain dom; 614 struct inpcb inpcb; 615 struct unpcb unpcb; 616 int len; 617 char dname[32]; 618 619 PREFIX(i); 620 621 /* fill in socket */ 622 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 623 dprintf("can't read sock at %p", sock); 624 goto bad; 625 } 626 627 /* fill in protosw entry */ 628 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 629 dprintf("can't read protosw at %p", so.so_proto); 630 goto bad; 631 } 632 633 /* fill in domain */ 634 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 635 dprintf("can't read domain at %p", proto.pr_domain); 636 goto bad; 637 } 638 639 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 640 sizeof(dname) - 1)) != sizeof(dname) -1) { 641 dprintf("can't read domain name at %p", dom.dom_name); 642 dname[0] = '\0'; 643 } 644 else 645 dname[len] = '\0'; 646 647 if ((u_short)so.so_type > STYPEMAX) 648 printf("* %s ?%d", dname, so.so_type); 649 else 650 printf("* %s %s", dname, stypename[so.so_type]); 651 652 /* 653 * protocol specific formatting 654 * 655 * Try to find interesting things to print. For TCP, the interesting 656 * thing is the address of the tcpcb, for UDP and others, just the 657 * inpcb (socket pcb). For UNIX domain, its the address of the socket 658 * pcb and the address of the connected pcb (if connected). Otherwise 659 * just print the protocol number and address of the socket itself. 660 * The idea is not to duplicate netstat, but to make available enough 661 * information for further analysis. 662 */ 663 switch(dom.dom_family) { 664 case AF_INET: 665 getinetproto(proto.pr_protocol); 666 if (proto.pr_protocol == IPPROTO_TCP) { 667 if (so.so_pcb == NULL) 668 break; 669 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&inpcb, 670 sizeof(struct inpcb)) != sizeof(struct inpcb)) { 671 dprintf("can't read inpcb at %p", so.so_pcb); 672 goto bad; 673 } 674 printf(" %lx", (long)inpcb.inp_ppcb); 675 printf(" %s:%d", 676 inpcb.inp_laddr.s_addr == INADDR_ANY ? "*" : 677 inet_ntoa(inpcb.inp_laddr), ntohs(inpcb.inp_lport)); 678 if (inpcb.inp_fport) { 679 printf(" <-> "); 680 printf("%s:%d", 681 inpcb.inp_faddr.s_addr == INADDR_ANY ? "*" : 682 inet_ntoa(inpcb.inp_faddr), 683 ntohs(inpcb.inp_fport)); 684 } 685 } else if (proto.pr_protocol == IPPROTO_UDP) { 686 if (so.so_pcb == NULL) 687 break; 688 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&inpcb, 689 sizeof(struct inpcb)) != sizeof(struct inpcb)) { 690 dprintf("can't read inpcb at %p", so.so_pcb); 691 goto bad; 692 } 693 printf(" %lx", (long)so.so_pcb); 694 printf(" %s:%d", 695 inpcb.inp_laddr.s_addr == INADDR_ANY ? "*" : 696 inet_ntoa(inpcb.inp_laddr), ntohs(inpcb.inp_lport)); 697 if (inpcb.inp_fport) 698 printf(" <-> %s:%d", 699 inpcb.inp_faddr.s_addr == INADDR_ANY ? "*" : 700 inet_ntoa(inpcb.inp_faddr), 701 ntohs(inpcb.inp_fport)); 702 } else if (so.so_pcb) 703 printf(" %lx", (long)so.so_pcb); 704 break; 705 case AF_LOCAL: 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("can't read unpcb at %p", so.so_pcb); 712 goto bad; 713 } 714 if (unpcb.unp_conn) { 715 char shoconn[4], *cp; 716 717 cp = shoconn; 718 if (!(so.so_state & SS_CANTRCVMORE)) 719 *cp++ = '<'; 720 *cp++ = '-'; 721 if (!(so.so_state & SS_CANTSENDMORE)) 722 *cp++ = '>'; 723 *cp = '\0'; 724 printf(" %s %lx", shoconn, 725 (long)unpcb.unp_conn); 726 } 727 } 728 break; 729 default: 730 /* print protocol number and socket address */ 731 printf(" %d %lx", proto.pr_protocol, (long)sock); 732 } 733 printf("\n"); 734 return; 735 bad: 736 printf("* error\n"); 737 } 738 739 /* 740 * getinetproto -- 741 * print name of protocol number 742 */ 743 void 744 getinetproto(number) 745 int number; 746 { 747 char *cp; 748 749 switch (number) { 750 case IPPROTO_IP: 751 cp = "ip"; break; 752 case IPPROTO_ICMP: 753 cp ="icmp"; break; 754 case IPPROTO_GGP: 755 cp ="ggp"; break; 756 case IPPROTO_TCP: 757 cp ="tcp"; break; 758 case IPPROTO_EGP: 759 cp ="egp"; break; 760 case IPPROTO_PUP: 761 cp ="pup"; break; 762 case IPPROTO_UDP: 763 cp ="udp"; break; 764 case IPPROTO_IDP: 765 cp ="idp"; break; 766 case IPPROTO_RAW: 767 cp ="raw"; break; 768 default: 769 printf(" %d", number); 770 return; 771 } 772 printf(" %s", cp); 773 } 774 775 int 776 getfname(filename) 777 char *filename; 778 { 779 struct stat statbuf; 780 DEVS *cur; 781 782 if (stat(filename, &statbuf)) { 783 warn("stat(%s)", filename); 784 return(0); 785 } 786 if ((cur = malloc(sizeof(DEVS))) == NULL) { 787 err(1, "malloc(%u)", (unsigned int)sizeof(DEVS)); 788 } 789 cur->next = devs; 790 devs = cur; 791 792 cur->ino = statbuf.st_ino; 793 cur->fsid = statbuf.st_dev & 0xffff; 794 cur->name = filename; 795 return(1); 796 } 797 798 void 799 usage() 800 { 801 errx(1, 802 "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 803 } 804
Indexes created Sun Sep 21 16:09:51 GMT 2025