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 * @(#) Copyright (c) 1988, 1993 The Regents of the University of California. All rights reserved. 34 * @(#)fstat.c 8.3 (Berkeley) 5/2/95 35 * $FreeBSD: src/usr.bin/fstat/fstat.c,v 1.21.2.7 2001/11/21 10:49:37 dwmalone Exp $ 36 * $DragonFly: src/usr.bin/fstat/fstat.c,v 1.7 2003/11/21 22:46:14 dillon Exp $ 37 */ 38 39 #define _KERNEL_STRUCTURES 40 41 #include <sys/param.h> 42 #include <sys/time.h> 43 #include <sys/user.h> 44 #include <sys/stat.h> 45 #include <sys/vnode.h> 46 #include <sys/socket.h> 47 #include <sys/socketvar.h> 48 #include <sys/domain.h> 49 #include <sys/protosw.h> 50 #include <sys/un.h> 51 #include <sys/unpcb.h> 52 #include <sys/sysctl.h> 53 #include <sys/filedesc.h> 54 #include <sys/queue.h> 55 #include <sys/pipe.h> 56 #include <sys/conf.h> 57 #include <sys/file.h> 58 #include <vfs/ufs/quota.h> 59 #include <vfs/ufs/inode.h> 60 #include <sys/mount.h> 61 #include <nfs/nfsproto.h> 62 #include <nfs/rpcv2.h> 63 #include <nfs/nfs.h> 64 #include <nfs/nfsnode.h> 65 66 67 #include <vm/vm.h> 68 #include <vm/vm_map.h> 69 #include <vm/vm_object.h> 70 71 #include <net/route.h> 72 #include <netinet/in.h> 73 #include <netinet/in_systm.h> 74 #include <netinet/ip.h> 75 #include <netinet/in_pcb.h> 76 77 #include <ctype.h> 78 #include <err.h> 79 #include <fcntl.h> 80 #include <kvm.h> 81 #include <limits.h> 82 #include <nlist.h> 83 #include <paths.h> 84 #include <pwd.h> 85 #include <stdio.h> 86 #include <stdlib.h> 87 #include <string.h> 88 #include <unistd.h> 89 #include <netdb.h> 90 91 #include "fstat.h" 92 93 #define TEXT -1 94 #define CDIR -2 95 #define RDIR -3 96 #define TRACE -4 97 #define MMAP -5 98 99 DEVS *devs; 100 101 #ifdef notdef 102 struct nlist nl[] = { 103 { "" }, 104 }; 105 #endif 106 107 int fsflg, /* show files on same filesystem as file(s) argument */ 108 pflg, /* show files open by a particular pid */ 109 uflg; /* show files open by a particular (effective) user */ 110 int checkfile; /* true if restricting to particular files or filesystems */ 111 int nflg; /* (numerical) display f.s. and rdev as dev_t */ 112 int vflg; /* display errors in locating kernel data objects etc... */ 113 int mflg; /* include memory-mapped files */ 114 115 116 struct file **ofiles; /* buffer of pointers to file structures */ 117 int maxfiles; 118 #define ALLOC_OFILES(d) \ 119 if ((d) > maxfiles) { \ 120 free(ofiles); \ 121 ofiles = malloc((d) * sizeof(struct file *)); \ 122 if (ofiles == NULL) { \ 123 err(1, NULL); \ 124 } \ 125 maxfiles = (d); \ 126 } 127 128 kvm_t *kd; 129 130 void dofiles(struct kinfo_proc *kp); 131 void dommap(struct kinfo_proc *kp); 132 void vtrans(struct vnode *vp, int i, int flag); 133 int ufs_filestat(struct vnode *vp, struct filestat *fsp); 134 int nfs_filestat(struct vnode *vp, struct filestat *fsp); 135 char *getmnton(struct mount *m); 136 void pipetrans(struct pipe *pi, int i, int flag); 137 void socktrans(struct socket *sock, int i); 138 void getinetproto(int number); 139 int getfname(char *filename); 140 void usage(void); 141 142 143 int 144 main(int argc, char **argv) 145 { 146 register struct passwd *passwd; 147 struct kinfo_proc *p, *plast; 148 int arg, ch, what; 149 char *memf, *nlistf; 150 char buf[_POSIX2_LINE_MAX]; 151 int cnt; 152 153 arg = 0; 154 what = KERN_PROC_ALL; 155 nlistf = memf = NULL; 156 while ((ch = getopt(argc, argv, "fmnp:u:vN:M:")) != -1) 157 switch((char)ch) { 158 case 'f': 159 fsflg = 1; 160 break; 161 case 'M': 162 memf = optarg; 163 break; 164 case 'N': 165 nlistf = optarg; 166 break; 167 case 'm': 168 mflg = 1; 169 break; 170 case 'n': 171 nflg = 1; 172 break; 173 case 'p': 174 if (pflg++) 175 usage(); 176 if (!isdigit(*optarg)) { 177 warnx("-p requires a process id"); 178 usage(); 179 } 180 what = KERN_PROC_PID; 181 arg = atoi(optarg); 182 break; 183 case 'u': 184 if (uflg++) 185 usage(); 186 if (!(passwd = getpwnam(optarg))) 187 errx(1, "%s: unknown uid", optarg); 188 what = KERN_PROC_UID; 189 arg = passwd->pw_uid; 190 break; 191 case 'v': 192 vflg = 1; 193 break; 194 case '?': 195 default: 196 usage(); 197 } 198 199 if (*(argv += optind)) { 200 for (; *argv; ++argv) { 201 if (getfname(*argv)) 202 checkfile = 1; 203 } 204 if (!checkfile) /* file(s) specified, but none accessable */ 205 exit(1); 206 } 207 208 ALLOC_OFILES(256); /* reserve space for file pointers */ 209 210 if (fsflg && !checkfile) { 211 /* -f with no files means use wd */ 212 if (getfname(".") == 0) 213 exit(1); 214 checkfile = 1; 215 } 216 217 /* 218 * Discard setgid privileges if not the running kernel so that bad 219 * guys can't print interesting stuff from kernel memory. 220 */ 221 if (nlistf != NULL || memf != NULL) 222 setgid(getgid()); 223 224 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 225 errx(1, "%s", buf); 226 #ifdef notdef 227 if (kvm_nlist(kd, nl) != 0) 228 errx(1, "no namelist: %s", kvm_geterr(kd)); 229 #endif 230 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) 231 errx(1, "%s", kvm_geterr(kd)); 232 if (nflg) 233 printf("%s", 234 "USER CMD PID FD DEV INUM MODE SZ|DV R/W"); 235 else 236 printf("%s", 237 "USER CMD PID FD MOUNT INUM MODE SZ|DV R/W"); 238 if (checkfile && fsflg == 0) 239 printf(" NAME\n"); 240 else 241 putchar('\n'); 242 243 for (plast = &p[cnt]; p < plast; ++p) { 244 if (p->kp_proc.p_stat == SZOMB) 245 continue; 246 dofiles(p); 247 if (mflg) 248 dommap(p); 249 } 250 exit(0); 251 } 252 253 char *Uname, *Comm; 254 int Pid; 255 256 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 257 switch(i) { \ 258 case TEXT: \ 259 printf(" text"); \ 260 break; \ 261 case CDIR: \ 262 printf(" wd"); \ 263 break; \ 264 case RDIR: \ 265 printf(" root"); \ 266 break; \ 267 case TRACE: \ 268 printf(" tr"); \ 269 break; \ 270 case MMAP: \ 271 printf(" mmap"); \ 272 break; \ 273 default: \ 274 printf(" %4d", i); \ 275 break; \ 276 } 277 278 /* 279 * print open files attributed to this process 280 */ 281 void 282 dofiles(struct kinfo_proc *kp) 283 { 284 int i; 285 struct file file; 286 struct filedesc0 filed0; 287 #define filed filed0.fd_fd 288 struct proc *p = &kp->kp_proc; 289 struct eproc *ep = &kp->kp_eproc; 290 291 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 292 Pid = p->p_pid; 293 Comm = kp->kp_thread.td_comm; 294 295 if (p->p_fd == NULL) 296 return; 297 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 298 dprintf(stderr, "can't read filedesc at %p for pid %d\n", 299 (void *)p->p_fd, Pid); 300 return; 301 } 302 /* 303 * root directory vnode, if one 304 */ 305 if (filed.fd_rdir) 306 vtrans(filed.fd_rdir, RDIR, FREAD); 307 /* 308 * current working directory vnode 309 */ 310 vtrans(filed.fd_cdir, CDIR, FREAD); 311 /* 312 * ktrace vnode, if one 313 */ 314 if (p->p_tracep) 315 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 316 /* 317 * text vnode, if one 318 */ 319 if (p->p_textvp) 320 vtrans(p->p_textvp, TEXT, FREAD); 321 /* 322 * open files 323 */ 324 #define FPSIZE (sizeof (struct file *)) 325 ALLOC_OFILES(filed.fd_lastfile+1); 326 if (filed.fd_nfiles > NDFILE) { 327 if (!KVM_READ(filed.fd_ofiles, ofiles, 328 (filed.fd_lastfile+1) * FPSIZE)) { 329 dprintf(stderr, 330 "can't read file structures at %p for pid %d\n", 331 (void *)filed.fd_ofiles, Pid); 332 return; 333 } 334 } else 335 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE); 336 for (i = 0; i <= filed.fd_lastfile; i++) { 337 if (ofiles[i] == NULL) 338 continue; 339 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 340 dprintf(stderr, "can't read file %d at %p for pid %d\n", 341 i, (void *)ofiles[i], Pid); 342 continue; 343 } 344 if (file.f_type == DTYPE_VNODE) 345 vtrans((struct vnode *)file.f_data, i, file.f_flag); 346 else if (file.f_type == DTYPE_SOCKET) { 347 if (checkfile == 0) 348 socktrans((struct socket *)file.f_data, i); 349 } 350 #ifdef DTYPE_PIPE 351 else if (file.f_type == DTYPE_PIPE) { 352 if (checkfile == 0) 353 pipetrans((struct pipe *)file.f_data, i, 354 file.f_flag); 355 } 356 #endif 357 #ifdef DTYPE_FIFO 358 else if (file.f_type == DTYPE_FIFO) { 359 if (checkfile == 0) 360 vtrans((struct vnode *)file.f_data, i, 361 file.f_flag); 362 } 363 #endif 364 else { 365 dprintf(stderr, 366 "unknown file type %d for file %d of pid %d\n", 367 file.f_type, i, Pid); 368 } 369 } 370 } 371 372 void 373 dommap(struct kinfo_proc *kp) 374 { 375 struct proc *p = &kp->kp_proc; 376 struct vmspace vmspace; 377 vm_map_t map; 378 struct vm_map_entry entry; 379 vm_map_entry_t entryp; 380 struct vm_object object; 381 vm_object_t objp; 382 int prot, fflags; 383 384 if (!KVM_READ(p->p_vmspace, &vmspace, sizeof(vmspace))) { 385 dprintf(stderr, "can't read vmspace at %p for pid %d\n", 386 (void *)p->p_vmspace, Pid); 387 return; 388 } 389 390 map = &vmspace.vm_map; 391 392 for (entryp = map->header.next; entryp != &p->p_vmspace->vm_map.header; 393 entryp = entry.next) { 394 if (!KVM_READ(entryp, &entry, sizeof(entry))) { 395 dprintf(stderr, 396 "can't read vm_map_entry at %p for pid %d\n", 397 (void *)entryp, Pid); 398 return; 399 } 400 401 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP) 402 continue; 403 404 if ((objp = entry.object.vm_object) == NULL) 405 continue; 406 407 for (; objp; objp = object.backing_object) { 408 if (!KVM_READ(objp, &object, sizeof(object))) { 409 dprintf(stderr, 410 "can't read vm_object at %p for pid %d\n", 411 (void *)objp, Pid); 412 return; 413 } 414 } 415 416 prot = entry.protection; 417 fflags = (prot & VM_PROT_READ ? FREAD : 0) | 418 (prot & VM_PROT_WRITE ? FWRITE : 0); 419 420 switch (object.type) { 421 case OBJT_VNODE: 422 vtrans((struct vnode *)object.handle, MMAP, fflags); 423 break; 424 default: 425 break; 426 } 427 } 428 } 429 430 void 431 vtrans(struct vnode *vp, int i, int flag) 432 { 433 struct vnode vn; 434 struct filestat fst; 435 char rw[3], mode[15]; 436 char *badtype = NULL, *filename, *getmnton(); 437 438 filename = badtype = NULL; 439 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 440 dprintf(stderr, "can't read vnode at %p for pid %d\n", 441 (void *)vp, Pid); 442 return; 443 } 444 if (vn.v_type == VNON || vn.v_tag == VT_NON) 445 badtype = "none"; 446 else if (vn.v_type == VBAD) 447 badtype = "bad"; 448 else 449 switch (vn.v_tag) { 450 case VT_UFS: 451 if (!ufs_filestat(&vn, &fst)) 452 badtype = "error"; 453 break; 454 case VT_MFS: 455 if (!ufs_filestat(&vn, &fst)) 456 badtype = "error"; 457 break; 458 case VT_NFS: 459 if (!nfs_filestat(&vn, &fst)) 460 badtype = "error"; 461 break; 462 463 case VT_MSDOSFS: 464 if (!msdosfs_filestat(&vn, &fst)) 465 badtype = "error"; 466 break; 467 468 case VT_ISOFS: 469 if (!isofs_filestat(&vn, &fst)) 470 badtype = "error"; 471 break; 472 473 default: { 474 static char unknown[10]; 475 sprintf(badtype = unknown, "?(%x)", vn.v_tag); 476 break;; 477 } 478 } 479 if (checkfile) { 480 int fsmatch = 0; 481 register DEVS *d; 482 483 if (badtype) 484 return; 485 for (d = devs; d != NULL; d = d->next) 486 if (d->fsid == fst.fsid) { 487 fsmatch = 1; 488 if (d->ino == fst.fileid) { 489 filename = d->name; 490 break; 491 } 492 } 493 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 494 return; 495 } 496 PREFIX(i); 497 if (badtype) { 498 (void)printf(" - - %10s -\n", badtype); 499 return; 500 } 501 if (nflg) 502 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 503 else 504 (void)printf(" %-8s", getmnton(vn.v_mount)); 505 if (nflg) 506 (void)sprintf(mode, "%o", fst.mode); 507 else 508 strmode(fst.mode, mode); 509 (void)printf(" %6ld %10s", fst.fileid, mode); 510 switch (vn.v_type) { 511 case VBLK: 512 case VCHR: { 513 char *name; 514 515 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 516 S_IFCHR : S_IFBLK)) == NULL)) 517 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 518 else 519 printf(" %6s", name); 520 break; 521 } 522 default: 523 printf(" %6lu", fst.size); 524 } 525 rw[0] = '\0'; 526 if (flag & FREAD) 527 strcat(rw, "r"); 528 if (flag & FWRITE) 529 strcat(rw, "w"); 530 printf(" %2s", rw); 531 if (filename && !fsflg) 532 printf(" %s", filename); 533 putchar('\n'); 534 } 535 536 int 537 ufs_filestat(struct vnode *vp, struct filestat *fsp) 538 { 539 struct inode inode; 540 541 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 542 dprintf(stderr, "can't read inode at %p for pid %d\n", 543 (void *)VTOI(vp), Pid); 544 return 0; 545 } 546 /* 547 * The st_dev from stat(2) is a udev_t. These kernel structures 548 * contain dev_t structures. We need to convert to udev to make 549 * comparisons 550 */ 551 fsp->fsid = dev2udev(inode.i_dev); 552 fsp->fileid = (long)inode.i_number; 553 fsp->mode = (mode_t)inode.i_mode; 554 fsp->size = (u_long)inode.i_size; 555 fsp->rdev = inode.i_rdev; 556 557 return 1; 558 } 559 560 int 561 nfs_filestat(struct vnode *vp, struct filestat *fsp) 562 { 563 struct nfsnode nfsnode; 564 register mode_t mode; 565 566 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 567 dprintf(stderr, "can't read nfsnode at %p for pid %d\n", 568 (void *)VTONFS(vp), Pid); 569 return 0; 570 } 571 fsp->fsid = nfsnode.n_vattr.va_fsid; 572 fsp->fileid = nfsnode.n_vattr.va_fileid; 573 fsp->size = nfsnode.n_size; 574 fsp->rdev = nfsnode.n_vattr.va_rdev; 575 mode = (mode_t)nfsnode.n_vattr.va_mode; 576 switch (vp->v_type) { 577 case VREG: 578 mode |= S_IFREG; 579 break; 580 case VDIR: 581 mode |= S_IFDIR; 582 break; 583 case VBLK: 584 mode |= S_IFBLK; 585 break; 586 case VCHR: 587 mode |= S_IFCHR; 588 break; 589 case VLNK: 590 mode |= S_IFLNK; 591 break; 592 case VSOCK: 593 mode |= S_IFSOCK; 594 break; 595 case VFIFO: 596 mode |= S_IFIFO; 597 break; 598 case VNON: 599 case VBAD: 600 return 0; 601 }; 602 fsp->mode = mode; 603 604 return 1; 605 } 606 607 608 char * 609 getmnton(struct mount *m) 610 { 611 static struct mount mount; 612 static struct mtab { 613 struct mtab *next; 614 struct mount *m; 615 char mntonname[MNAMELEN]; 616 } *mhead = NULL; 617 register struct mtab *mt; 618 619 for (mt = mhead; mt != NULL; mt = mt->next) 620 if (m == mt->m) 621 return (mt->mntonname); 622 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 623 warnx("can't read mount table at %p", (void *)m); 624 return (NULL); 625 } 626 if ((mt = malloc(sizeof (struct mtab))) == NULL) 627 err(1, NULL); 628 mt->m = m; 629 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 630 mt->next = mhead; 631 mhead = mt; 632 return (mt->mntonname); 633 } 634 635 void 636 pipetrans(struct pipe *pi, int i, int flag) 637 { 638 struct pipe pip; 639 char rw[3]; 640 641 PREFIX(i); 642 643 /* fill in socket */ 644 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 645 dprintf(stderr, "can't read pipe at %p\n", (void *)pi); 646 goto bad; 647 } 648 649 printf("* pipe %8lx <-> %8lx", (u_long)pi, (u_long)pip.pipe_peer); 650 printf(" %6d", (int)pip.pipe_buffer.cnt); 651 rw[0] = '\0'; 652 if (flag & FREAD) 653 strcat(rw, "r"); 654 if (flag & FWRITE) 655 strcat(rw, "w"); 656 printf(" %2s", rw); 657 putchar('\n'); 658 return; 659 660 bad: 661 printf("* error\n"); 662 } 663 664 void 665 socktrans(struct socket *sock, int i) 666 { 667 static char *stypename[] = { 668 "unused", /* 0 */ 669 "stream", /* 1 */ 670 "dgram", /* 2 */ 671 "raw", /* 3 */ 672 "rdm", /* 4 */ 673 "seqpak" /* 5 */ 674 }; 675 #define STYPEMAX 5 676 struct socket so; 677 struct protosw proto; 678 struct domain dom; 679 struct inpcb inpcb; 680 struct unpcb unpcb; 681 int len; 682 char dname[32], *strcpy(); 683 684 PREFIX(i); 685 686 /* fill in socket */ 687 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 688 dprintf(stderr, "can't read sock at %p\n", (void *)sock); 689 goto bad; 690 } 691 692 /* fill in protosw entry */ 693 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 694 dprintf(stderr, "can't read protosw at %p", 695 (void *)so.so_proto); 696 goto bad; 697 } 698 699 /* fill in domain */ 700 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 701 dprintf(stderr, "can't read domain at %p\n", 702 (void *)proto.pr_domain); 703 goto bad; 704 } 705 706 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 707 sizeof(dname) - 1)) < 0) { 708 dprintf(stderr, "can't read domain name at %p\n", 709 (void *)dom.dom_name); 710 dname[0] = '\0'; 711 } 712 else 713 dname[len] = '\0'; 714 715 if ((u_short)so.so_type > STYPEMAX) 716 printf("* %s ?%d", dname, so.so_type); 717 else 718 printf("* %s %s", dname, stypename[so.so_type]); 719 720 /* 721 * protocol specific formatting 722 * 723 * Try to find interesting things to print. For tcp, the interesting 724 * thing is the address of the tcpcb, for udp and others, just the 725 * inpcb (socket pcb). For unix domain, its the address of the socket 726 * pcb and the address of the connected pcb (if connected). Otherwise 727 * just print the protocol number and address of the socket itself. 728 * The idea is not to duplicate netstat, but to make available enough 729 * information for further analysis. 730 */ 731 switch(dom.dom_family) { 732 case AF_INET: 733 case AF_INET6: 734 getinetproto(proto.pr_protocol); 735 if (proto.pr_protocol == IPPROTO_TCP ) { 736 if (so.so_pcb) { 737 if (kvm_read(kd, (u_long)so.so_pcb, 738 (char *)&inpcb, sizeof(struct inpcb)) 739 != sizeof(struct inpcb)) { 740 dprintf(stderr, 741 "can't read inpcb at %p\n", 742 (void *)so.so_pcb); 743 goto bad; 744 } 745 printf(" %lx", (u_long)inpcb.inp_ppcb); 746 } 747 } 748 else if (so.so_pcb) 749 printf(" %lx", (u_long)so.so_pcb); 750 break; 751 case AF_UNIX: 752 /* print address of pcb and connected pcb */ 753 if (so.so_pcb) { 754 printf(" %lx", (u_long)so.so_pcb); 755 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 756 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 757 dprintf(stderr, "can't read unpcb at %p\n", 758 (void *)so.so_pcb); 759 goto bad; 760 } 761 if (unpcb.unp_conn) { 762 char shoconn[4], *cp; 763 764 cp = shoconn; 765 if (!(so.so_state & SS_CANTRCVMORE)) 766 *cp++ = '<'; 767 *cp++ = '-'; 768 if (!(so.so_state & SS_CANTSENDMORE)) 769 *cp++ = '>'; 770 *cp = '\0'; 771 printf(" %s %lx", shoconn, 772 (u_long)unpcb.unp_conn); 773 } 774 } 775 break; 776 default: 777 /* print protocol number and socket address */ 778 printf(" %d %lx", proto.pr_protocol, (u_long)sock); 779 } 780 printf("\n"); 781 return; 782 bad: 783 printf("* error\n"); 784 } 785 786 787 /* 788 * Read the specinfo structure in the kernel (as pointed to by a dev_t) 789 * in order to work out the associated udev_t 790 */ 791 udev_t 792 dev2udev(dev_t dev) 793 { 794 struct specinfo si; 795 796 if (KVM_READ(dev, &si, sizeof si)) { 797 return si.si_udev; 798 } else { 799 dprintf(stderr, "can't convert dev_t %x to a udev_t\n", dev); 800 return -1; 801 } 802 } 803 804 /* 805 * getinetproto -- 806 * print name of protocol number 807 */ 808 void 809 getinetproto(int number) 810 { 811 static int isopen; 812 register struct protoent *pe; 813 814 if (!isopen) 815 setprotoent(++isopen); 816 if ((pe = getprotobynumber(number)) != NULL) 817 printf(" %s", pe->p_name); 818 else 819 printf(" %d", number); 820 } 821 822 int 823 getfname(char *filename) 824 { 825 struct stat statbuf; 826 DEVS *cur; 827 828 if (stat(filename, &statbuf)) { 829 warn("%s", filename); 830 return(0); 831 } 832 if ((cur = malloc(sizeof(DEVS))) == NULL) 833 err(1, NULL); 834 cur->next = devs; 835 devs = cur; 836 837 cur->ino = statbuf.st_ino; 838 cur->fsid = statbuf.st_dev; 839 cur->name = filename; 840 return(1); 841 } 842 843 void 844 usage(void) 845 { 846 (void)fprintf(stderr, 847 "usage: fstat [-fmnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 848 exit(1); 849 } 850