fstat.c revision 72527
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 72527 2001-02-15 22:42:44Z iedowse $"; 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#include <sys/mount.h> 70#undef _KERNEL 71#include <nfs/nfsproto.h> 72#include <nfs/rpcv2.h> 73#include <nfs/nfs.h> 74#include <nfs/nfsnode.h> 75 76 77#include <vm/vm.h> 78#include <vm/vm_map.h> 79#include <vm/vm_object.h> 80 81#include <net/route.h> 82#include <netinet/in.h> 83#include <netinet/in_systm.h> 84#include <netinet/ip.h> 85#include <netinet/in_pcb.h> 86 87#include <ctype.h> 88#include <err.h> 89#include <fcntl.h> 90#include <kvm.h> 91#include <limits.h> 92#include <nlist.h> 93#include <paths.h> 94#include <pwd.h> 95#include <stdio.h> 96#include <stdlib.h> 97#include <string.h> 98#include <unistd.h> 99#include <netdb.h> 100 101#include "fstat.h" 102 103#define TEXT -1 104#define CDIR -2 105#define RDIR -3 106#define TRACE -4 107#define MMAP -5 108 109DEVS *devs; 110 111#ifdef notdef 112struct nlist nl[] = { 113 { "" }, 114}; 115#endif 116 117int fsflg, /* show files on same filesystem as file(s) argument */ 118 pflg, /* show files open by a particular pid */ 119 uflg; /* show files open by a particular (effective) user */ 120int checkfile; /* true if restricting to particular files or filesystems */ 121int nflg; /* (numerical) display f.s. and rdev as dev_t */ 122int vflg; /* display errors in locating kernel data objects etc... */ 123int mflg; /* include memory-mapped files */ 124 125 126struct file **ofiles; /* buffer of pointers to file structures */ 127int maxfiles; 128#define ALLOC_OFILES(d) \ 129 if ((d) > maxfiles) { \ 130 free(ofiles); \ 131 ofiles = malloc((d) * sizeof(struct file *)); \ 132 if (ofiles == NULL) { \ 133 err(1, NULL); \ 134 } \ 135 maxfiles = (d); \ 136 } 137 138kvm_t *kd; 139 140void dofiles __P((struct kinfo_proc *kp)); 141void dommap __P((struct kinfo_proc *kp)); 142void vtrans __P((struct vnode *vp, int i, int flag)); 143int ufs_filestat __P((struct vnode *vp, struct filestat *fsp)); 144int nfs_filestat __P((struct vnode *vp, struct filestat *fsp)); 145char *getmnton __P((struct mount *m)); 146void pipetrans __P((struct pipe *pi, int i, int flag)); 147void socktrans __P((struct socket *sock, int i)); 148void getinetproto __P((int number)); 149int getfname __P((char *filename)); 150void usage __P((void)); 151 152 153int 154main(argc, argv) 155 int argc; 156 char **argv; 157{ 158 register struct passwd *passwd; 159 struct kinfo_proc *p, *plast; 160 int arg, ch, what; 161 char *memf, *nlistf; 162 char buf[_POSIX2_LINE_MAX]; 163 int cnt; 164 165 arg = 0; 166 what = KERN_PROC_ALL; 167 nlistf = memf = NULL; 168 while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1) 169 switch((char)ch) { 170 case 'f': 171 fsflg = 1; 172 break; 173 case 'M': 174 memf = optarg; 175 break; 176 case 'N': 177 nlistf = optarg; 178 break; 179 case 'm': 180 mflg = 1; 181 break; 182 case 'n': 183 nflg = 1; 184 break; 185 case 'p': 186 if (pflg++) 187 usage(); 188 if (!isdigit(*optarg)) { 189 warnx("-p requires a process id"); 190 usage(); 191 } 192 what = KERN_PROC_PID; 193 arg = atoi(optarg); 194 break; 195 case 'u': 196 if (uflg++) 197 usage(); 198 if (!(passwd = getpwnam(optarg))) 199 errx(1, "%s: unknown uid", optarg); 200 what = KERN_PROC_UID; 201 arg = passwd->pw_uid; 202 break; 203 case 'v': 204 vflg = 1; 205 break; 206 case '?': 207 default: 208 usage(); 209 } 210 211 if (*(argv += optind)) { 212 for (; *argv; ++argv) { 213 if (getfname(*argv)) 214 checkfile = 1; 215 } 216 if (!checkfile) /* file(s) specified, but none accessable */ 217 exit(1); 218 } 219 220 ALLOC_OFILES(256); /* reserve space for file pointers */ 221 222 if (fsflg && !checkfile) { 223 /* -f with no files means use wd */ 224 if (getfname(".") == 0) 225 exit(1); 226 checkfile = 1; 227 } 228 229 /* 230 * Discard setgid privileges if not the running kernel so that bad 231 * guys can't print interesting stuff from kernel memory. 232 */ 233 if (nlistf != NULL || memf != NULL) 234 setgid(getgid()); 235 236 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 237 errx(1, "%s", buf); 238#ifdef notdef 239 if (kvm_nlist(kd, nl) != 0) 240 errx(1, "no namelist: %s", kvm_geterr(kd)); 241#endif 242 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) 243 errx(1, "%s", kvm_geterr(kd)); 244 if (nflg) 245 printf("%s", 246"USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 247 else 248 printf("%s", 249"USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 250 if (checkfile && fsflg == 0) 251 printf(" NAME\n"); 252 else 253 putchar('\n'); 254 255 for (plast = &p[cnt]; p < plast; ++p) { 256 if (p->ki_stat == SZOMB) 257 continue; 258 dofiles(p); 259 if (mflg) 260 dommap(p); 261 } 262 exit(0); 263} 264 265char *Uname, *Comm; 266int Pid; 267 268#define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 269 switch(i) { \ 270 case TEXT: \ 271 printf(" text"); \ 272 break; \ 273 case CDIR: \ 274 printf(" wd"); \ 275 break; \ 276 case RDIR: \ 277 printf(" root"); \ 278 break; \ 279 case TRACE: \ 280 printf(" tr"); \ 281 break; \ 282 case MMAP: \ 283 printf(" mmap"); \ 284 break; \ 285 default: \ 286 printf(" %4d", i); \ 287 break; \ 288 } 289 290/* 291 * print open files attributed to this process 292 */ 293void 294dofiles(kp) 295 struct kinfo_proc *kp; 296{ 297 int i; 298 struct file file; 299 struct filedesc0 filed0; 300#define filed filed0.fd_fd 301 302 Uname = user_from_uid(kp->ki_uid, 0); 303 Pid = kp->ki_pid; 304 Comm = kp->ki_comm; 305 306 if (kp->ki_fd == NULL) 307 return; 308 if (!KVM_READ(kp->ki_fd, &filed0, sizeof (filed0))) { 309 dprintf(stderr, "can't read filedesc at %p for pid %d\n", 310 (void *)kp->ki_fd, Pid); 311 return; 312 } 313 /* 314 * root directory vnode, if one 315 */ 316 if (filed.fd_rdir) 317 vtrans(filed.fd_rdir, RDIR, FREAD); 318 /* 319 * current working directory vnode 320 */ 321 vtrans(filed.fd_cdir, CDIR, FREAD); 322 /* 323 * ktrace vnode, if one 324 */ 325 if (kp->ki_tracep) 326 vtrans(kp->ki_tracep, TRACE, FREAD|FWRITE); 327 /* 328 * text vnode, if one 329 */ 330 if (kp->ki_textvp) 331 vtrans(kp->ki_textvp, TEXT, FREAD); 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(stderr, 341 "can't read file structures at %p for pid %d\n", 342 (void *)filed.fd_ofiles, Pid); 343 return; 344 } 345 } else 346 bcopy(filed0.fd_dfiles, ofiles, (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(stderr, "can't read file %d at %p for pid %d\n", 352 i, (void *)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#ifdef DTYPE_PIPE 362 else if (file.f_type == DTYPE_PIPE) { 363 if (checkfile == 0) 364 pipetrans((struct pipe *)file.f_data, i, 365 file.f_flag); 366 } 367#endif 368 else { 369 dprintf(stderr, 370 "unknown file type %d for file %d of pid %d\n", 371 file.f_type, i, Pid); 372 } 373 } 374} 375 376void 377dommap(kp) 378 struct kinfo_proc *kp; 379{ 380 vm_map_t map; 381 struct vmspace vmspace; 382 struct vm_map_entry entry; 383 vm_map_entry_t entryp; 384 struct vm_object object; 385 vm_object_t objp; 386 int prot, fflags; 387 388 if (!KVM_READ(kp->ki_vmspace, &vmspace, sizeof(vmspace))) { 389 dprintf(stderr, 390 "can't read vmspace at %p for pid %d\n", 391 (void *)kp->ki_vmspace, Pid); 392 return; 393 } 394 map = &vmspace.vm_map; 395 396 for (entryp = map->header.next; 397 entryp != &kp->ki_vmspace->vm_map.header; entryp = entry.next) { 398 if (!KVM_READ(entryp, &entry, sizeof(entry))) { 399 dprintf(stderr, 400 "can't read vm_map_entry at %p for pid %d\n", 401 (void *)entryp, Pid); 402 return; 403 } 404 405 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP) 406 continue; 407 408 if ((objp = entry.object.vm_object) == NULL) 409 continue; 410 411 for (; objp; objp = object.backing_object) { 412 if (!KVM_READ(objp, &object, sizeof(object))) { 413 dprintf(stderr, 414 "can't read vm_object at %p for pid %d\n", 415 (void *)objp, Pid); 416 return; 417 } 418 } 419 420 prot = entry.protection; 421 fflags = (prot & VM_PROT_READ ? FREAD : 0) | 422 (prot & VM_PROT_WRITE ? FWRITE : 0); 423 424 switch (object.type) { 425 case OBJT_VNODE: 426 vtrans((struct vnode *)object.handle, MMAP, fflags); 427 break; 428 default: 429 break; 430 } 431 } 432} 433 434void 435vtrans(vp, i, flag) 436 struct vnode *vp; 437 int i; 438 int flag; 439{ 440 struct vnode vn; 441 struct filestat fst; 442 char rw[3], mode[15]; 443 char *badtype = NULL, *filename, *getmnton(); 444 445 filename = badtype = NULL; 446 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 447 dprintf(stderr, "can't read vnode at %p for pid %d\n", 448 (void *)vp, Pid); 449 return; 450 } 451 if (vn.v_type == VNON || vn.v_tag == VT_NON) 452 badtype = "none"; 453 else if (vn.v_type == VBAD) 454 badtype = "bad"; 455 else 456 switch (vn.v_tag) { 457 case VT_UFS: 458 if (!ufs_filestat(&vn, &fst)) 459 badtype = "error"; 460 break; 461 case VT_MFS: 462 if (!ufs_filestat(&vn, &fst)) 463 badtype = "error"; 464 break; 465 case VT_NFS: 466 if (!nfs_filestat(&vn, &fst)) 467 badtype = "error"; 468 break; 469 470 case VT_MSDOSFS: 471 if (!msdosfs_filestat(&vn, &fst)) 472 badtype = "error"; 473 break; 474 475 case VT_ISOFS: 476 if (!isofs_filestat(&vn, &fst)) 477 badtype = "error"; 478 break; 479 480 default: { 481 static char unknown[10]; 482 sprintf(badtype = unknown, "?(%x)", vn.v_tag); 483 break;; 484 } 485 } 486 if (checkfile) { 487 int fsmatch = 0; 488 register DEVS *d; 489 490 if (badtype) 491 return; 492 for (d = devs; d != NULL; d = d->next) 493 if (d->fsid == fst.fsid) { 494 fsmatch = 1; 495 if (d->ino == fst.fileid) { 496 filename = d->name; 497 break; 498 } 499 } 500 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 501 return; 502 } 503 PREFIX(i); 504 if (badtype) { 505 (void)printf(" - - %10s -\n", badtype); 506 return; 507 } 508 if (nflg) 509 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 510 else 511 (void)printf(" %-8s", getmnton(vn.v_mount)); 512 if (nflg) 513 (void)sprintf(mode, "%o", fst.mode); 514 else 515 strmode(fst.mode, mode); 516 (void)printf(" %6ld %10s", fst.fileid, mode); 517 switch (vn.v_type) { 518 case VBLK: 519 case VCHR: { 520 char *name; 521 522 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 523 S_IFCHR : S_IFBLK)) == NULL)) 524 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 525 else 526 printf(" %6s", name); 527 break; 528 } 529 default: 530 printf(" %6lu", fst.size); 531 } 532 rw[0] = '\0'; 533 if (flag & FREAD) 534 strcat(rw, "r"); 535 if (flag & FWRITE) 536 strcat(rw, "w"); 537 printf(" %2s", rw); 538 if (filename && !fsflg) 539 printf(" %s", filename); 540 putchar('\n'); 541} 542 543int 544ufs_filestat(vp, fsp) 545 struct vnode *vp; 546 struct filestat *fsp; 547{ 548 struct inode inode; 549 550 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 551 dprintf(stderr, "can't read inode at %p for pid %d\n", 552 (void *)VTOI(vp), Pid); 553 return 0; 554 } 555 /* 556 * The st_dev from stat(2) is a udev_t. These kernel structures 557 * contain dev_t structures. We need to convert to udev to make 558 * comparisons 559 */ 560 fsp->fsid = dev2udev(inode.i_dev) & 0xffff; 561 fsp->fileid = (long)inode.i_number; 562 fsp->mode = (mode_t)inode.i_mode; 563 fsp->size = (u_long)inode.i_size; 564 fsp->rdev = inode.i_rdev; 565 566 return 1; 567} 568 569int 570nfs_filestat(vp, fsp) 571 struct vnode *vp; 572 struct filestat *fsp; 573{ 574 struct nfsnode nfsnode; 575 register mode_t mode; 576 577 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 578 dprintf(stderr, "can't read nfsnode at %p for pid %d\n", 579 (void *)VTONFS(vp), Pid); 580 return 0; 581 } 582 fsp->fsid = nfsnode.n_vattr.va_fsid; 583 fsp->fileid = nfsnode.n_vattr.va_fileid; 584 fsp->size = nfsnode.n_size; 585 fsp->rdev = nfsnode.n_vattr.va_rdev; 586 mode = (mode_t)nfsnode.n_vattr.va_mode; 587 switch (vp->v_type) { 588 case VREG: 589 mode |= S_IFREG; 590 break; 591 case VDIR: 592 mode |= S_IFDIR; 593 break; 594 case VBLK: 595 mode |= S_IFBLK; 596 break; 597 case VCHR: 598 mode |= S_IFCHR; 599 break; 600 case VLNK: 601 mode |= S_IFLNK; 602 break; 603 case VSOCK: 604 mode |= S_IFSOCK; 605 break; 606 case VFIFO: 607 mode |= S_IFIFO; 608 break; 609 case VNON: 610 case VBAD: 611 return 0; 612 }; 613 fsp->mode = mode; 614 615 return 1; 616} 617 618 619char * 620getmnton(m) 621 struct mount *m; 622{ 623 static struct mount mount; 624 static struct mtab { 625 struct mtab *next; 626 struct mount *m; 627 char mntonname[MNAMELEN]; 628 } *mhead = NULL; 629 register struct mtab *mt; 630 631 for (mt = mhead; mt != NULL; mt = mt->next) 632 if (m == mt->m) 633 return (mt->mntonname); 634 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 635 warnx("can't read mount table at %p", (void *)m); 636 return (NULL); 637 } 638 if ((mt = malloc(sizeof (struct mtab))) == NULL) 639 err(1, NULL); 640 mt->m = m; 641 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 642 mt->next = mhead; 643 mhead = mt; 644 return (mt->mntonname); 645} 646 647void 648pipetrans(pi, i, flag) 649 struct pipe *pi; 650 int i; 651 int flag; 652{ 653 struct pipe pip; 654 char rw[3]; 655 656 PREFIX(i); 657 658 /* fill in socket */ 659 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 660 dprintf(stderr, "can't read pipe at %p\n", (void *)pi); 661 goto bad; 662 } 663 664 printf("* pipe %8x <-> %8x", (int)pi, (int)pip.pipe_peer); 665 printf(" %6d", (int)pip.pipe_buffer.cnt); 666 rw[0] = '\0'; 667 if (flag & FREAD) 668 strcat(rw, "r"); 669 if (flag & FWRITE) 670 strcat(rw, "w"); 671 printf(" %2s", rw); 672 putchar('\n'); 673 return; 674 675bad: 676 printf("* error\n"); 677} 678 679void 680socktrans(sock, i) 681 struct socket *sock; 682 int i; 683{ 684 static char *stypename[] = { 685 "unused", /* 0 */ 686 "stream", /* 1 */ 687 "dgram", /* 2 */ 688 "raw", /* 3 */ 689 "rdm", /* 4 */ 690 "seqpak" /* 5 */ 691 }; 692#define STYPEMAX 5 693 struct socket so; 694 struct protosw proto; 695 struct domain dom; 696 struct inpcb inpcb; 697 struct unpcb unpcb; 698 int len; 699 char dname[32], *strcpy(); 700 701 PREFIX(i); 702 703 /* fill in socket */ 704 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 705 dprintf(stderr, "can't read sock at %p\n", (void *)sock); 706 goto bad; 707 } 708 709 /* fill in protosw entry */ 710 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 711 dprintf(stderr, "can't read protosw at %p", 712 (void *)so.so_proto); 713 goto bad; 714 } 715 716 /* fill in domain */ 717 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 718 dprintf(stderr, "can't read domain at %p\n", 719 (void *)proto.pr_domain); 720 goto bad; 721 } 722 723 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 724 sizeof(dname) - 1)) < 0) { 725 dprintf(stderr, "can't read domain name at %p\n", 726 (void *)dom.dom_name); 727 dname[0] = '\0'; 728 } 729 else 730 dname[len] = '\0'; 731 732 if ((u_short)so.so_type > STYPEMAX) 733 printf("* %s ?%d", dname, so.so_type); 734 else 735 printf("* %s %s", dname, stypename[so.so_type]); 736 737 /* 738 * protocol specific formatting 739 * 740 * Try to find interesting things to print. For tcp, the interesting 741 * thing is the address of the tcpcb, for udp and others, just the 742 * inpcb (socket pcb). For unix domain, its the address of the socket 743 * pcb and the address of the connected pcb (if connected). Otherwise 744 * just print the protocol number and address of the socket itself. 745 * The idea is not to duplicate netstat, but to make available enough 746 * information for further analysis. 747 */ 748 switch(dom.dom_family) { 749 case AF_INET: 750 case AF_INET6: 751 getinetproto(proto.pr_protocol); 752 if (proto.pr_protocol == IPPROTO_TCP ) { 753 if (so.so_pcb) { 754 if (kvm_read(kd, (u_long)so.so_pcb, 755 (char *)&inpcb, sizeof(struct inpcb)) 756 != sizeof(struct inpcb)) { 757 dprintf(stderr, 758 "can't read inpcb at %p\n", 759 (void *)so.so_pcb); 760 goto bad; 761 } 762 printf(" %x", (int)inpcb.inp_ppcb); 763 } 764 } 765 else if (so.so_pcb) 766 printf(" %x", (int)so.so_pcb); 767 break; 768 case AF_UNIX: 769 /* print address of pcb and connected pcb */ 770 if (so.so_pcb) { 771 printf(" %x", (int)so.so_pcb); 772 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 773 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 774 dprintf(stderr, "can't read unpcb at %p\n", 775 (void *)so.so_pcb); 776 goto bad; 777 } 778 if (unpcb.unp_conn) { 779 char shoconn[4], *cp; 780 781 cp = shoconn; 782 if (!(so.so_state & SS_CANTRCVMORE)) 783 *cp++ = '<'; 784 *cp++ = '-'; 785 if (!(so.so_state & SS_CANTSENDMORE)) 786 *cp++ = '>'; 787 *cp = '\0'; 788 printf(" %s %x", shoconn, 789 (int)unpcb.unp_conn); 790 } 791 } 792 break; 793 default: 794 /* print protocol number and socket address */ 795 printf(" %d %x", proto.pr_protocol, (int)sock); 796 } 797 printf("\n"); 798 return; 799bad: 800 printf("* error\n"); 801} 802 803 804/* 805 * Read the specinfo structure in the kernel (as pointed to by a dev_t) 806 * in order to work out the associated udev_t 807 */ 808udev_t 809dev2udev(dev) 810 dev_t dev; 811{ 812 struct specinfo si; 813 814 if (KVM_READ(dev, &si, sizeof si)) { 815 return si.si_udev; 816 } else { 817 dprintf(stderr, "can't convert dev_t %p to a udev_t\n", 818 (void *)dev); 819 return -1; 820 } 821} 822 823/* 824 * getinetproto -- 825 * print name of protocol number 826 */ 827void 828getinetproto(number) 829 int number; 830{ 831 static int isopen; 832 register struct protoent *pe; 833 834 if (!isopen) 835 setprotoent(++isopen); 836 if ((pe = getprotobynumber(number)) != NULL) 837 printf(" %s", pe->p_name); 838 else 839 printf(" %d", number); 840} 841 842int 843getfname(filename) 844 char *filename; 845{ 846 struct stat statbuf; 847 DEVS *cur; 848 849 if (stat(filename, &statbuf)) { 850 warn("%s", filename); 851 return(0); 852 } 853 if ((cur = malloc(sizeof(DEVS))) == NULL) 854 err(1, NULL); 855 cur->next = devs; 856 devs = cur; 857 858 cur->ino = statbuf.st_ino; 859 cur->fsid = statbuf.st_dev & 0xffff; 860 cur->name = filename; 861 return(1); 862} 863 864void 865usage() 866{ 867 (void)fprintf(stderr, 868 "usage: fstat [-fmnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 869 exit(1); 870} 871