fstat.c revision 80355
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 35static 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 42static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95"; 43#endif 44static const char rcsid[] = 45 "$FreeBSD: head/usr.bin/fstat/fstat.c 80355 2001-07-25 20:31:20Z mjacob $"; 46#endif /* not lint */ 47 48#include <sys/param.h> 49#include <sys/lock.h> 50#include <sys/time.h> 51#include <sys/proc.h> 52#include <sys/user.h> 53#include <sys/stat.h> 54#include <sys/vnode.h> 55#include <sys/socket.h> 56#include <sys/socketvar.h> 57#include <sys/domain.h> 58#include <sys/protosw.h> 59#include <sys/un.h> 60#include <sys/unpcb.h> 61#include <sys/sysctl.h> 62#include <sys/filedesc.h> 63#include <sys/queue.h> 64#include <sys/pipe.h> 65#define _KERNEL 66#include <sys/conf.h> 67#include <sys/file.h> 68#include <ufs/ufs/quota.h> 69#include <ufs/ufs/inode.h> 70#include <sys/mount.h> 71#undef _KERNEL 72#include <nfs/nfsproto.h> 73#include <nfs/rpcv2.h> 74#include <nfs/nfs.h> 75#include <nfs/nfsnode.h> 76 77 78#include <vm/vm.h> 79#include <vm/vm_map.h> 80#include <vm/vm_object.h> 81 82#include <net/route.h> 83#include <netinet/in.h> 84#include <netinet/in_systm.h> 85#include <netinet/ip.h> 86#include <netinet/in_pcb.h> 87 88#include <ctype.h> 89#include <err.h> 90#include <fcntl.h> 91#include <kvm.h> 92#include <limits.h> 93#include <nlist.h> 94#include <paths.h> 95#include <pwd.h> 96#include <stdio.h> 97#include <stdlib.h> 98#include <string.h> 99#include <unistd.h> 100#include <netdb.h> 101 102#include "fstat.h" 103 104#define TEXT -1 105#define CDIR -2 106#define RDIR -3 107#define TRACE -4 108#define MMAP -5 109 110DEVS *devs; 111 112#ifdef notdef 113struct nlist nl[] = { 114 { "" }, 115}; 116#endif 117 118int fsflg, /* show files on same filesystem as file(s) argument */ 119 pflg, /* show files open by a particular pid */ 120 uflg; /* show files open by a particular (effective) user */ 121int checkfile; /* true if restricting to particular files or filesystems */ 122int nflg; /* (numerical) display f.s. and rdev as dev_t */ 123int vflg; /* display errors in locating kernel data objects etc... */ 124int mflg; /* include memory-mapped files */ 125 126 127struct file **ofiles; /* buffer of pointers to file structures */ 128int maxfiles; 129#define ALLOC_OFILES(d) \ 130 if ((d) > maxfiles) { \ 131 free(ofiles); \ 132 ofiles = malloc((d) * sizeof(struct file *)); \ 133 if (ofiles == NULL) { \ 134 err(1, NULL); \ 135 } \ 136 maxfiles = (d); \ 137 } 138 139kvm_t *kd; 140 141void dofiles __P((struct kinfo_proc *kp)); 142void dommap __P((struct kinfo_proc *kp)); 143void vtrans __P((struct vnode *vp, int i, int flag)); 144int ufs_filestat __P((struct vnode *vp, struct filestat *fsp)); 145int nfs_filestat __P((struct vnode *vp, struct filestat *fsp)); 146char *getmnton __P((struct mount *m)); 147void pipetrans __P((struct pipe *pi, int i, int flag)); 148void socktrans __P((struct socket *sock, int i)); 149void getinetproto __P((int number)); 150int getfname __P((char *filename)); 151void usage __P((void)); 152 153 154int 155main(argc, argv) 156 int argc; 157 char **argv; 158{ 159 register struct passwd *passwd; 160 struct kinfo_proc *p, *plast; 161 int arg, ch, what; 162 char *memf, *nlistf; 163 char buf[_POSIX2_LINE_MAX]; 164 int cnt; 165 166 arg = 0; 167 what = KERN_PROC_ALL; 168 nlistf = memf = NULL; 169 while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1) 170 switch((char)ch) { 171 case 'f': 172 fsflg = 1; 173 break; 174 case 'M': 175 memf = optarg; 176 break; 177 case 'N': 178 nlistf = optarg; 179 break; 180 case 'm': 181 mflg = 1; 182 break; 183 case 'n': 184 nflg = 1; 185 break; 186 case 'p': 187 if (pflg++) 188 usage(); 189 if (!isdigit(*optarg)) { 190 warnx("-p requires a process id"); 191 usage(); 192 } 193 what = KERN_PROC_PID; 194 arg = atoi(optarg); 195 break; 196 case 'u': 197 if (uflg++) 198 usage(); 199 if (!(passwd = getpwnam(optarg))) 200 errx(1, "%s: unknown uid", optarg); 201 what = KERN_PROC_UID; 202 arg = passwd->pw_uid; 203 break; 204 case 'v': 205 vflg = 1; 206 break; 207 case '?': 208 default: 209 usage(); 210 } 211 212 if (*(argv += optind)) { 213 for (; *argv; ++argv) { 214 if (getfname(*argv)) 215 checkfile = 1; 216 } 217 if (!checkfile) /* file(s) specified, but none accessable */ 218 exit(1); 219 } 220 221 ALLOC_OFILES(256); /* reserve space for file pointers */ 222 223 if (fsflg && !checkfile) { 224 /* -f with no files means use wd */ 225 if (getfname(".") == 0) 226 exit(1); 227 checkfile = 1; 228 } 229 230 /* 231 * Discard setgid privileges if not the running kernel so that bad 232 * guys can't print interesting stuff from kernel memory. 233 */ 234 if (nlistf != NULL || memf != NULL) 235 setgid(getgid()); 236 237 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 238 errx(1, "%s", buf); 239#ifdef notdef 240 if (kvm_nlist(kd, nl) != 0) 241 errx(1, "no namelist: %s", kvm_geterr(kd)); 242#endif 243 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) 244 errx(1, "%s", kvm_geterr(kd)); 245 if (nflg) 246 printf("%s", 247"USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 248 else 249 printf("%s", 250"USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 251 if (checkfile && fsflg == 0) 252 printf(" NAME\n"); 253 else 254 putchar('\n'); 255 256 for (plast = &p[cnt]; p < plast; ++p) { 257 if (p->ki_stat == SZOMB) 258 continue; 259 dofiles(p); 260 if (mflg) 261 dommap(p); 262 } 263 exit(0); 264} 265 266char *Uname, *Comm; 267int Pid; 268 269#define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 270 switch(i) { \ 271 case TEXT: \ 272 printf(" text"); \ 273 break; \ 274 case CDIR: \ 275 printf(" wd"); \ 276 break; \ 277 case RDIR: \ 278 printf(" root"); \ 279 break; \ 280 case TRACE: \ 281 printf(" tr"); \ 282 break; \ 283 case MMAP: \ 284 printf(" mmap"); \ 285 break; \ 286 default: \ 287 printf(" %4d", i); \ 288 break; \ 289 } 290 291/* 292 * print open files attributed to this process 293 */ 294void 295dofiles(kp) 296 struct kinfo_proc *kp; 297{ 298 int i; 299 struct file file; 300 struct filedesc0 filed0; 301#define filed filed0.fd_fd 302 303 Uname = user_from_uid(kp->ki_uid, 0); 304 Pid = kp->ki_pid; 305 Comm = kp->ki_comm; 306 307 if (kp->ki_fd == NULL) 308 return; 309 if (!KVM_READ(kp->ki_fd, &filed0, sizeof (filed0))) { 310 dprintf(stderr, "can't read filedesc at %p for pid %d\n", 311 (void *)kp->ki_fd, Pid); 312 return; 313 } 314 /* 315 * root directory vnode, if one 316 */ 317 if (filed.fd_rdir) 318 vtrans(filed.fd_rdir, RDIR, FREAD); 319 /* 320 * current working directory vnode 321 */ 322 vtrans(filed.fd_cdir, CDIR, FREAD); 323 /* 324 * ktrace vnode, if one 325 */ 326 if (kp->ki_tracep) 327 vtrans(kp->ki_tracep, TRACE, FREAD|FWRITE); 328 /* 329 * text vnode, if one 330 */ 331 if (kp->ki_textvp) 332 vtrans(kp->ki_textvp, TEXT, FREAD); 333 /* 334 * open files 335 */ 336#define FPSIZE (sizeof (struct file *)) 337 ALLOC_OFILES(filed.fd_lastfile+1); 338 if (filed.fd_nfiles > NDFILE) { 339 if (!KVM_READ(filed.fd_ofiles, ofiles, 340 (filed.fd_lastfile+1) * FPSIZE)) { 341 dprintf(stderr, 342 "can't read file structures at %p for pid %d\n", 343 (void *)filed.fd_ofiles, Pid); 344 return; 345 } 346 } else 347 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE); 348 for (i = 0; i <= filed.fd_lastfile; i++) { 349 if (ofiles[i] == NULL) 350 continue; 351 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 352 dprintf(stderr, "can't read file %d at %p for pid %d\n", 353 i, (void *)ofiles[i], Pid); 354 continue; 355 } 356 if (file.f_type == DTYPE_VNODE) 357 vtrans((struct vnode *)file.f_data, i, file.f_flag); 358 else if (file.f_type == DTYPE_SOCKET) { 359 if (checkfile == 0) 360 socktrans((struct socket *)file.f_data, i); 361 } 362#ifdef DTYPE_PIPE 363 else if (file.f_type == DTYPE_PIPE) { 364 if (checkfile == 0) 365 pipetrans((struct pipe *)file.f_data, i, 366 file.f_flag); 367 } 368#endif 369#ifdef DTYPE_FIFO 370 else if (file.f_type == DTYPE_FIFO) { 371 if (checkfile == 0) 372 vtrans((struct vnode *)file.f_data, i, 373 file.f_flag); 374 } 375#endif 376 else { 377 dprintf(stderr, 378 "unknown file type %d for file %d of pid %d\n", 379 file.f_type, i, Pid); 380 } 381 } 382} 383 384void 385dommap(kp) 386 struct kinfo_proc *kp; 387{ 388 vm_map_t map; 389 struct vmspace vmspace; 390 struct vm_map_entry entry; 391 vm_map_entry_t entryp; 392 struct vm_object object; 393 vm_object_t objp; 394 int prot, fflags; 395 396 if (!KVM_READ(kp->ki_vmspace, &vmspace, sizeof(vmspace))) { 397 dprintf(stderr, 398 "can't read vmspace at %p for pid %d\n", 399 (void *)kp->ki_vmspace, Pid); 400 return; 401 } 402 map = &vmspace.vm_map; 403 404 for (entryp = map->header.next; 405 entryp != &kp->ki_vmspace->vm_map.header; entryp = entry.next) { 406 if (!KVM_READ(entryp, &entry, sizeof(entry))) { 407 dprintf(stderr, 408 "can't read vm_map_entry at %p for pid %d\n", 409 (void *)entryp, Pid); 410 return; 411 } 412 413 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP) 414 continue; 415 416 if ((objp = entry.object.vm_object) == NULL) 417 continue; 418 419 for (; objp; objp = object.backing_object) { 420 if (!KVM_READ(objp, &object, sizeof(object))) { 421 dprintf(stderr, 422 "can't read vm_object at %p for pid %d\n", 423 (void *)objp, Pid); 424 return; 425 } 426 } 427 428 prot = entry.protection; 429 fflags = (prot & VM_PROT_READ ? FREAD : 0) | 430 (prot & VM_PROT_WRITE ? FWRITE : 0); 431 432 switch (object.type) { 433 case OBJT_VNODE: 434 vtrans((struct vnode *)object.handle, MMAP, fflags); 435 break; 436 default: 437 break; 438 } 439 } 440} 441 442void 443vtrans(vp, i, flag) 444 struct vnode *vp; 445 int i; 446 int flag; 447{ 448 struct vnode vn; 449 struct filestat fst; 450 char rw[3], mode[15]; 451 char *badtype = NULL, *filename, *getmnton(); 452 453 filename = badtype = NULL; 454 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 455 dprintf(stderr, "can't read vnode at %p for pid %d\n", 456 (void *)vp, Pid); 457 return; 458 } 459 if (vn.v_type == VNON || vn.v_tag == VT_NON) 460 badtype = "none"; 461 else if (vn.v_type == VBAD) 462 badtype = "bad"; 463 else 464 switch (vn.v_tag) { 465 case VT_UFS: 466 if (!ufs_filestat(&vn, &fst)) 467 badtype = "error"; 468 break; 469 case VT_NFS: 470 if (!nfs_filestat(&vn, &fst)) 471 badtype = "error"; 472 break; 473 474 case VT_MSDOSFS: 475 if (!msdosfs_filestat(&vn, &fst)) 476 badtype = "error"; 477 break; 478 479 case VT_ISOFS: 480 if (!isofs_filestat(&vn, &fst)) 481 badtype = "error"; 482 break; 483 484 default: { 485 static char unknown[10]; 486 sprintf(badtype = unknown, "?(%x)", vn.v_tag); 487 break;; 488 } 489 } 490 if (checkfile) { 491 int fsmatch = 0; 492 register DEVS *d; 493 494 if (badtype) 495 return; 496 for (d = devs; d != NULL; d = d->next) 497 if (d->fsid == fst.fsid) { 498 fsmatch = 1; 499 if (d->ino == fst.fileid) { 500 filename = d->name; 501 break; 502 } 503 } 504 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 505 return; 506 } 507 PREFIX(i); 508 if (badtype) { 509 (void)printf(" - - %10s -\n", badtype); 510 return; 511 } 512 if (nflg) 513 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 514 else 515 (void)printf(" %-8s", getmnton(vn.v_mount)); 516 if (nflg) 517 (void)sprintf(mode, "%o", fst.mode); 518 else 519 strmode(fst.mode, mode); 520 (void)printf(" %6ld %10s", fst.fileid, mode); 521 switch (vn.v_type) { 522 case VBLK: 523 case VCHR: { 524 char *name; 525 526 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 527 S_IFCHR : S_IFBLK)) == NULL)) 528 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 529 else 530 printf(" %6s", name); 531 break; 532 } 533 default: 534 printf(" %6lu", fst.size); 535 } 536 rw[0] = '\0'; 537 if (flag & FREAD) 538 strcat(rw, "r"); 539 if (flag & FWRITE) 540 strcat(rw, "w"); 541 printf(" %2s", rw); 542 if (filename && !fsflg) 543 printf(" %s", filename); 544 putchar('\n'); 545} 546 547int 548ufs_filestat(vp, fsp) 549 struct vnode *vp; 550 struct filestat *fsp; 551{ 552 struct inode inode; 553 554 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 555 dprintf(stderr, "can't read inode at %p for pid %d\n", 556 (void *)VTOI(vp), Pid); 557 return 0; 558 } 559 /* 560 * The st_dev from stat(2) is a udev_t. These kernel structures 561 * contain dev_t structures. We need to convert to udev to make 562 * comparisons 563 */ 564 fsp->fsid = dev2udev(inode.i_dev) & 0xffff; 565 fsp->fileid = (long)inode.i_number; 566 fsp->mode = (mode_t)inode.i_mode; 567 fsp->size = (u_long)inode.i_size; 568 fsp->rdev = inode.i_rdev; 569 570 return 1; 571} 572 573int 574nfs_filestat(vp, fsp) 575 struct vnode *vp; 576 struct filestat *fsp; 577{ 578 struct nfsnode nfsnode; 579 register mode_t mode; 580 581 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 582 dprintf(stderr, "can't read nfsnode at %p for pid %d\n", 583 (void *)VTONFS(vp), Pid); 584 return 0; 585 } 586 fsp->fsid = nfsnode.n_vattr.va_fsid; 587 fsp->fileid = nfsnode.n_vattr.va_fileid; 588 fsp->size = nfsnode.n_size; 589 fsp->rdev = nfsnode.n_vattr.va_rdev; 590 mode = (mode_t)nfsnode.n_vattr.va_mode; 591 switch (vp->v_type) { 592 case VREG: 593 mode |= S_IFREG; 594 break; 595 case VDIR: 596 mode |= S_IFDIR; 597 break; 598 case VBLK: 599 mode |= S_IFBLK; 600 break; 601 case VCHR: 602 mode |= S_IFCHR; 603 break; 604 case VLNK: 605 mode |= S_IFLNK; 606 break; 607 case VSOCK: 608 mode |= S_IFSOCK; 609 break; 610 case VFIFO: 611 mode |= S_IFIFO; 612 break; 613 case VNON: 614 case VBAD: 615 return 0; 616 }; 617 fsp->mode = mode; 618 619 return 1; 620} 621 622 623char * 624getmnton(m) 625 struct mount *m; 626{ 627 static struct mount mount; 628 static struct mtab { 629 struct mtab *next; 630 struct mount *m; 631 char mntonname[MNAMELEN]; 632 } *mhead = NULL; 633 register struct mtab *mt; 634 635 for (mt = mhead; mt != NULL; mt = mt->next) 636 if (m == mt->m) 637 return (mt->mntonname); 638 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 639 warnx("can't read mount table at %p", (void *)m); 640 return (NULL); 641 } 642 if ((mt = malloc(sizeof (struct mtab))) == NULL) 643 err(1, NULL); 644 mt->m = m; 645 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 646 mt->next = mhead; 647 mhead = mt; 648 return (mt->mntonname); 649} 650 651void 652pipetrans(pi, i, flag) 653 struct pipe *pi; 654 int i; 655 int flag; 656{ 657 struct pipe pip; 658 char rw[3]; 659 660 PREFIX(i); 661 662 /* fill in socket */ 663 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 664 dprintf(stderr, "can't read pipe at %p\n", (void *)pi); 665 goto bad; 666 } 667 668 printf("* pipe %8lx <-> %8lx", (u_long)pi, (u_long)pip.pipe_peer); 669 printf(" %6d", (int)pip.pipe_buffer.cnt); 670 rw[0] = '\0'; 671 if (flag & FREAD) 672 strcat(rw, "r"); 673 if (flag & FWRITE) 674 strcat(rw, "w"); 675 printf(" %2s", rw); 676 putchar('\n'); 677 return; 678 679bad: 680 printf("* error\n"); 681} 682 683void 684socktrans(sock, i) 685 struct socket *sock; 686 int i; 687{ 688 static char *stypename[] = { 689 "unused", /* 0 */ 690 "stream", /* 1 */ 691 "dgram", /* 2 */ 692 "raw", /* 3 */ 693 "rdm", /* 4 */ 694 "seqpak" /* 5 */ 695 }; 696#define STYPEMAX 5 697 struct socket so; 698 struct protosw proto; 699 struct domain dom; 700 struct inpcb inpcb; 701 struct unpcb unpcb; 702 int len; 703 char dname[32], *strcpy(); 704 705 PREFIX(i); 706 707 /* fill in socket */ 708 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 709 dprintf(stderr, "can't read sock at %p\n", (void *)sock); 710 goto bad; 711 } 712 713 /* fill in protosw entry */ 714 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 715 dprintf(stderr, "can't read protosw at %p", 716 (void *)so.so_proto); 717 goto bad; 718 } 719 720 /* fill in domain */ 721 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 722 dprintf(stderr, "can't read domain at %p\n", 723 (void *)proto.pr_domain); 724 goto bad; 725 } 726 727 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 728 sizeof(dname) - 1)) < 0) { 729 dprintf(stderr, "can't read domain name at %p\n", 730 (void *)dom.dom_name); 731 dname[0] = '\0'; 732 } 733 else 734 dname[len] = '\0'; 735 736 if ((u_short)so.so_type > STYPEMAX) 737 printf("* %s ?%d", dname, so.so_type); 738 else 739 printf("* %s %s", dname, stypename[so.so_type]); 740 741 /* 742 * protocol specific formatting 743 * 744 * Try to find interesting things to print. For tcp, the interesting 745 * thing is the address of the tcpcb, for udp and others, just the 746 * inpcb (socket pcb). For unix domain, its the address of the socket 747 * pcb and the address of the connected pcb (if connected). Otherwise 748 * just print the protocol number and address of the socket itself. 749 * The idea is not to duplicate netstat, but to make available enough 750 * information for further analysis. 751 */ 752 switch(dom.dom_family) { 753 case AF_INET: 754 case AF_INET6: 755 getinetproto(proto.pr_protocol); 756 if (proto.pr_protocol == IPPROTO_TCP ) { 757 if (so.so_pcb) { 758 if (kvm_read(kd, (u_long)so.so_pcb, 759 (char *)&inpcb, sizeof(struct inpcb)) 760 != sizeof(struct inpcb)) { 761 dprintf(stderr, 762 "can't read inpcb at %p\n", 763 (void *)so.so_pcb); 764 goto bad; 765 } 766 printf(" %lx", (u_long)inpcb.inp_ppcb); 767 } 768 } 769 else if (so.so_pcb) 770 printf(" %lx", (u_long)so.so_pcb); 771 break; 772 case AF_UNIX: 773 /* print address of pcb and connected pcb */ 774 if (so.so_pcb) { 775 printf(" %lx", (u_long)so.so_pcb); 776 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 777 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 778 dprintf(stderr, "can't read unpcb at %p\n", 779 (void *)so.so_pcb); 780 goto bad; 781 } 782 if (unpcb.unp_conn) { 783 char shoconn[4], *cp; 784 785 cp = shoconn; 786 if (!(so.so_state & SS_CANTRCVMORE)) 787 *cp++ = '<'; 788 *cp++ = '-'; 789 if (!(so.so_state & SS_CANTSENDMORE)) 790 *cp++ = '>'; 791 *cp = '\0'; 792 printf(" %s %lx", shoconn, 793 (u_long)unpcb.unp_conn); 794 } 795 } 796 break; 797 default: 798 /* print protocol number and socket address */ 799 printf(" %d %lx", proto.pr_protocol, (u_long)sock); 800 } 801 printf("\n"); 802 return; 803bad: 804 printf("* error\n"); 805} 806 807 808/* 809 * Read the specinfo structure in the kernel (as pointed to by a dev_t) 810 * in order to work out the associated udev_t 811 */ 812udev_t 813dev2udev(dev) 814 dev_t dev; 815{ 816 struct specinfo si; 817 818 if (KVM_READ(dev, &si, sizeof si)) { 819 return si.si_udev; 820 } else { 821 dprintf(stderr, "can't convert dev_t %x to a udev_t\n", dev); 822 return -1; 823 } 824} 825 826/* 827 * getinetproto -- 828 * print name of protocol number 829 */ 830void 831getinetproto(number) 832 int number; 833{ 834 static int isopen; 835 register struct protoent *pe; 836 837 if (!isopen) 838 setprotoent(++isopen); 839 if ((pe = getprotobynumber(number)) != NULL) 840 printf(" %s", pe->p_name); 841 else 842 printf(" %d", number); 843} 844 845int 846getfname(filename) 847 char *filename; 848{ 849 struct stat statbuf; 850 DEVS *cur; 851 852 if (stat(filename, &statbuf)) { 853 warn("%s", filename); 854 return(0); 855 } 856 if ((cur = malloc(sizeof(DEVS))) == NULL) 857 err(1, NULL); 858 cur->next = devs; 859 devs = cur; 860 861 cur->ino = statbuf.st_ino; 862 cur->fsid = statbuf.st_dev & 0xffff; 863 cur->name = filename; 864 return(1); 865} 866 867void 868usage() 869{ 870 (void)fprintf(stderr, 871 "usage: fstat [-fmnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 872 exit(1); 873} 874