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/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 -5 109 110 DEVS *devs; 111 112 #ifdef notdef 113 struct nlist nl[] = { 114 { "" }, 115 }; 116 #endif 117 118 int 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 */ 121 int checkfile; /* true if restricting to particular files or filesystems */ 122 int nflg; /* (numerical) display f.s. and rdev as dev_t */ 123 int vflg; /* display errors in locating kernel data objects etc... */ 124 int mflg; /* include memory-mapped files */ 125 126 127 struct file **ofiles; /* buffer of pointers to file structures */ 128 int 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 } 138 139 kvm_t *kd; 140 141 void dofiles __P((struct kinfo_proc *kp)); 142 void dommap __P((struct kinfo_proc *kp)); 143 void vtrans __P((struct vnode *vp, int i, int flag)); 144 int ufs_filestat __P((struct vnode *vp, struct filestat *fsp)); 145 int nfs_filestat __P((struct vnode *vp, struct filestat *fsp)); 146 char *getmnton __P((struct mount *m)); 147 void pipetrans __P((struct pipe *pi, int i, int flag)); 148 void socktrans __P((struct socket *sock, int i)); 149 void getinetproto __P((int number)); 150 int getfname __P((char *filename)); 151 void usage __P((void)); 152 153 154 int 155 main(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 } 265 266 char *Uname, *Comm; 267 int 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 */ 294 void 295 dofiles(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 else { 370 dprintf(stderr, 371 "unknown file type %d for file %d of pid %d\n", 372 file.f_type, i, Pid); 373 } 374 } 375 } 376 377 void 378 dommap(kp) 379 struct kinfo_proc *kp; 380 { 381 vm_map_t map; 382 struct vmspace vmspace; 383 struct vm_map_entry entry; 384 vm_map_entry_t entryp; 385 struct vm_object object; 386 vm_object_t objp; 387 int prot, fflags; 388 389 if (!KVM_READ(kp->ki_vmspace, &vmspace, sizeof(vmspace))) { 390 dprintf(stderr, 391 "can't read vmspace at %p for pid %d\n", 392 (void *)kp->ki_vmspace, Pid); 393 return; 394 } 395 map = &vmspace.vm_map; 396 397 for (entryp = map->header.next; 398 entryp != &kp->ki_vmspace->vm_map.header; entryp = entry.next) { 399 if (!KVM_READ(entryp, &entry, sizeof(entry))) { 400 dprintf(stderr, 401 "can't read vm_map_entry at %p for pid %d\n", 402 (void *)entryp, Pid); 403 return; 404 } 405 406 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP) 407 continue; 408 409 if ((objp = entry.object.vm_object) == NULL) 410 continue; 411 412 for (; objp; objp = object.backing_object) { 413 if (!KVM_READ(objp, &object, sizeof(object))) { 414 dprintf(stderr, 415 "can't read vm_object at %p for pid %d\n", 416 (void *)objp, Pid); 417 return; 418 } 419 } 420 421 prot = entry.protection; 422 fflags = (prot & VM_PROT_READ ? FREAD : 0) | 423 (prot & VM_PROT_WRITE ? FWRITE : 0); 424 425 switch (object.type) { 426 case OBJT_VNODE: 427 vtrans((struct vnode *)object.handle, MMAP, fflags); 428 break; 429 default: 430 break; 431 } 432 } 433 } 434 435 void 436 vtrans(vp, i, flag) 437 struct vnode *vp; 438 int i; 439 int flag; 440 { 441 struct vnode vn; 442 struct filestat fst; 443 char rw[3], mode[15]; 444 char *badtype = NULL, *filename, *getmnton(); 445 446 filename = badtype = NULL; 447 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 448 dprintf(stderr, "can't read vnode at %p for pid %d\n", 449 (void *)vp, Pid); 450 return; 451 } 452 if (vn.v_type == VNON || vn.v_tag == VT_NON) 453 badtype = "none"; 454 else if (vn.v_type == VBAD) 455 badtype = "bad"; 456 else 457 switch (vn.v_tag) { 458 case VT_UFS: 459 if (!ufs_filestat(&vn, &fst)) 460 badtype = "error"; 461 break; 462 case VT_MFS: 463 if (!ufs_filestat(&vn, &fst)) 464 badtype = "error"; 465 break; 466 case VT_NFS: 467 if (!nfs_filestat(&vn, &fst)) 468 badtype = "error"; 469 break; 470 471 case VT_MSDOSFS: 472 if (!msdosfs_filestat(&vn, &fst)) 473 badtype = "error"; 474 break; 475 476 case VT_ISOFS: 477 if (!isofs_filestat(&vn, &fst)) 478 badtype = "error"; 479 break; 480 481 default: { 482 static char unknown[10]; 483 sprintf(badtype = unknown, "?(%x)", vn.v_tag); 484 break;; 485 } 486 } 487 if (checkfile) { 488 int fsmatch = 0; 489 register DEVS *d; 490 491 if (badtype) 492 return; 493 for (d = devs; d != NULL; d = d->next) 494 if (d->fsid == fst.fsid) { 495 fsmatch = 1; 496 if (d->ino == fst.fileid) { 497 filename = d->name; 498 break; 499 } 500 } 501 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 502 return; 503 } 504 PREFIX(i); 505 if (badtype) { 506 (void)printf(" - - %10s -\n", badtype); 507 return; 508 } 509 if (nflg) 510 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 511 else 512 (void)printf(" %-8s", getmnton(vn.v_mount)); 513 if (nflg) 514 (void)sprintf(mode, "%o", fst.mode); 515 else 516 strmode(fst.mode, mode); 517 (void)printf(" %6ld %10s", fst.fileid, mode); 518 switch (vn.v_type) { 519 case VBLK: 520 case VCHR: { 521 char *name; 522 523 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 524 S_IFCHR : S_IFBLK)) == NULL)) 525 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 526 else 527 printf(" %6s", name); 528 break; 529 } 530 default: 531 printf(" %6lu", fst.size); 532 } 533 rw[0] = '\0'; 534 if (flag & FREAD) 535 strcat(rw, "r"); 536 if (flag & FWRITE) 537 strcat(rw, "w"); 538 printf(" %2s", rw); 539 if (filename && !fsflg) 540 printf(" %s", filename); 541 putchar('\n'); 542 } 543 544 int 545 ufs_filestat(vp, fsp) 546 struct vnode *vp; 547 struct filestat *fsp; 548 { 549 struct inode inode; 550 551 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 552 dprintf(stderr, "can't read inode at %p for pid %d\n", 553 (void *)VTOI(vp), Pid); 554 return 0; 555 } 556 /* 557 * The st_dev from stat(2) is a udev_t. These kernel structures 558 * contain dev_t structures. We need to convert to udev to make 559 * comparisons 560 */ 561 fsp->fsid = dev2udev(inode.i_dev) & 0xffff; 562 fsp->fileid = (long)inode.i_number; 563 fsp->mode = (mode_t)inode.i_mode; 564 fsp->size = (u_long)inode.i_size; 565 fsp->rdev = inode.i_rdev; 566 567 return 1; 568 } 569 570 int 571 nfs_filestat(vp, fsp) 572 struct vnode *vp; 573 struct filestat *fsp; 574 { 575 struct nfsnode nfsnode; 576 register mode_t mode; 577 578 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 579 dprintf(stderr, "can't read nfsnode at %p for pid %d\n", 580 (void *)VTONFS(vp), Pid); 581 return 0; 582 } 583 fsp->fsid = nfsnode.n_vattr.va_fsid; 584 fsp->fileid = nfsnode.n_vattr.va_fileid; 585 fsp->size = nfsnode.n_size; 586 fsp->rdev = nfsnode.n_vattr.va_rdev; 587 mode = (mode_t)nfsnode.n_vattr.va_mode; 588 switch (vp->v_type) { 589 case VREG: 590 mode |= S_IFREG; 591 break; 592 case VDIR: 593 mode |= S_IFDIR; 594 break; 595 case VBLK: 596 mode |= S_IFBLK; 597 break; 598 case VCHR: 599 mode |= S_IFCHR; 600 break; 601 case VLNK: 602 mode |= S_IFLNK; 603 break; 604 case VSOCK: 605 mode |= S_IFSOCK; 606 break; 607 case VFIFO: 608 mode |= S_IFIFO; 609 break; 610 case VNON: 611 case VBAD: 612 return 0; 613 }; 614 fsp->mode = mode; 615 616 return 1; 617 } 618 619 620 char * 621 getmnton(m) 622 struct mount *m; 623 { 624 static struct mount mount; 625 static struct mtab { 626 struct mtab *next; 627 struct mount *m; 628 char mntonname[MNAMELEN]; 629 } *mhead = NULL; 630 register struct mtab *mt; 631 632 for (mt = mhead; mt != NULL; mt = mt->next) 633 if (m == mt->m) 634 return (mt->mntonname); 635 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 636 warnx("can't read mount table at %p", (void *)m); 637 return (NULL); 638 } 639 if ((mt = malloc(sizeof (struct mtab))) == NULL) 640 err(1, NULL); 641 mt->m = m; 642 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 643 mt->next = mhead; 644 mhead = mt; 645 return (mt->mntonname); 646 } 647 648 void 649 pipetrans(pi, i, flag) 650 struct pipe *pi; 651 int i; 652 int flag; 653 { 654 struct pipe pip; 655 char rw[3]; 656 657 PREFIX(i); 658 659 /* fill in socket */ 660 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 661 dprintf(stderr, "can't read pipe at %p\n", (void *)pi); 662 goto bad; 663 } 664 665 printf("* pipe %8x <-> %8x", (int)pi, (int)pip.pipe_peer); 666 printf(" %6d", (int)pip.pipe_buffer.cnt); 667 rw[0] = '\0'; 668 if (flag & FREAD) 669 strcat(rw, "r"); 670 if (flag & FWRITE) 671 strcat(rw, "w"); 672 printf(" %2s", rw); 673 putchar('\n'); 674 return; 675 676 bad: 677 printf("* error\n"); 678 } 679 680 void 681 socktrans(sock, i) 682 struct socket *sock; 683 int i; 684 { 685 static char *stypename[] = { 686 "unused", /* 0 */ 687 "stream", /* 1 */ 688 "dgram", /* 2 */ 689 "raw", /* 3 */ 690 "rdm", /* 4 */ 691 "seqpak" /* 5 */ 692 }; 693 #define STYPEMAX 5 694 struct socket so; 695 struct protosw proto; 696 struct domain dom; 697 struct inpcb inpcb; 698 struct unpcb unpcb; 699 int len; 700 char dname[32], *strcpy(); 701 702 PREFIX(i); 703 704 /* fill in socket */ 705 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 706 dprintf(stderr, "can't read sock at %p\n", (void *)sock); 707 goto bad; 708 } 709 710 /* fill in protosw entry */ 711 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 712 dprintf(stderr, "can't read protosw at %p", 713 (void *)so.so_proto); 714 goto bad; 715 } 716 717 /* fill in domain */ 718 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 719 dprintf(stderr, "can't read domain at %p\n", 720 (void *)proto.pr_domain); 721 goto bad; 722 } 723 724 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 725 sizeof(dname) - 1)) < 0) { 726 dprintf(stderr, "can't read domain name at %p\n", 727 (void *)dom.dom_name); 728 dname[0] = '\0'; 729 } 730 else 731 dname[len] = '\0'; 732 733 if ((u_short)so.so_type > STYPEMAX) 734 printf("* %s ?%d", dname, so.so_type); 735 else 736 printf("* %s %s", dname, stypename[so.so_type]); 737 738 /* 739 * protocol specific formatting 740 * 741 * Try to find interesting things to print. For tcp, the interesting 742 * thing is the address of the tcpcb, for udp and others, just the 743 * inpcb (socket pcb). For unix domain, its the address of the socket 744 * pcb and the address of the connected pcb (if connected). Otherwise 745 * just print the protocol number and address of the socket itself. 746 * The idea is not to duplicate netstat, but to make available enough 747 * information for further analysis. 748 */ 749 switch(dom.dom_family) { 750 case AF_INET: 751 case AF_INET6: 752 getinetproto(proto.pr_protocol); 753 if (proto.pr_protocol == IPPROTO_TCP ) { 754 if (so.so_pcb) { 755 if (kvm_read(kd, (u_long)so.so_pcb, 756 (char *)&inpcb, sizeof(struct inpcb)) 757 != sizeof(struct inpcb)) { 758 dprintf(stderr, 759 "can't read inpcb at %p\n", 760 (void *)so.so_pcb); 761 goto bad; 762 } 763 printf(" %x", (int)inpcb.inp_ppcb); 764 } 765 } 766 else if (so.so_pcb) 767 printf(" %x", (int)so.so_pcb); 768 break; 769 case AF_UNIX: 770 /* print address of pcb and connected pcb */ 771 if (so.so_pcb) { 772 printf(" %x", (int)so.so_pcb); 773 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 774 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 775 dprintf(stderr, "can't read unpcb at %p\n", 776 (void *)so.so_pcb); 777 goto bad; 778 } 779 if (unpcb.unp_conn) { 780 char shoconn[4], *cp; 781 782 cp = shoconn; 783 if (!(so.so_state & SS_CANTRCVMORE)) 784 *cp++ = '<'; 785 *cp++ = '-'; 786 if (!(so.so_state & SS_CANTSENDMORE)) 787 *cp++ = '>'; 788 *cp = '\0'; 789 printf(" %s %x", shoconn, 790 (int)unpcb.unp_conn); 791 } 792 } 793 break; 794 default: 795 /* print protocol number and socket address */ 796 printf(" %d %x", proto.pr_protocol, (int)sock); 797 } 798 printf("\n"); 799 return; 800 bad: 801 printf("* error\n"); 802 } 803 804 805 /* 806 * Read the specinfo structure in the kernel (as pointed to by a dev_t) 807 * in order to work out the associated udev_t 808 */ 809 udev_t 810 dev2udev(dev) 811 dev_t dev; 812 { 813 struct specinfo si; 814 815 if (KVM_READ(dev, &si, sizeof si)) { 816 return si.si_udev; 817 } else { 818 dprintf(stderr, "can't convert dev_t %p to a udev_t\n", 819 (void *)dev); 820 return -1; 821 } 822 } 823 824 /* 825 * getinetproto -- 826 * print name of protocol number 827 */ 828 void 829 getinetproto(number) 830 int number; 831 { 832 static int isopen; 833 register struct protoent *pe; 834 835 if (!isopen) 836 setprotoent(++isopen); 837 if ((pe = getprotobynumber(number)) != NULL) 838 printf(" %s", pe->p_name); 839 else 840 printf(" %d", number); 841 } 842 843 int 844 getfname(filename) 845 char *filename; 846 { 847 struct stat statbuf; 848 DEVS *cur; 849 850 if (stat(filename, &statbuf)) { 851 warn("%s", filename); 852 return(0); 853 } 854 if ((cur = malloc(sizeof(DEVS))) == NULL) 855 err(1, NULL); 856 cur->next = devs; 857 devs = cur; 858 859 cur->ino = statbuf.st_ino; 860 cur->fsid = statbuf.st_dev & 0xffff; 861 cur->name = filename; 862 return(1); 863 } 864 865 void 866 usage() 867 { 868 (void)fprintf(stderr, 869 "usage: fstat [-fmnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 870 exit(1); 871 } 872