fstat.c revision 59029
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 59029 2000-04-05 05:45:40Z green $"; 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#undef _KERNEL 70#include <sys/mount.h> 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->kp_proc.p_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 struct proc *p = &kp->kp_proc; 302 struct eproc *ep = &kp->kp_eproc; 303 304 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 305 Pid = p->p_pid; 306 Comm = p->p_comm; 307 308 if (p->p_fd == NULL) 309 return; 310 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 311 dprintf(stderr, "can't read filedesc at %p for pid %d\n", 312 (void *)p->p_fd, Pid); 313 return; 314 } 315 /* 316 * root directory vnode, if one 317 */ 318 if (filed.fd_rdir) 319 vtrans(filed.fd_rdir, RDIR, FREAD); 320 /* 321 * current working directory vnode 322 */ 323 vtrans(filed.fd_cdir, CDIR, FREAD); 324 /* 325 * ktrace vnode, if one 326 */ 327 if (p->p_tracep) 328 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 329 /* 330 * text vnode, if one 331 */ 332 if (p->p_textvp) 333 vtrans(p->p_textvp, TEXT, FREAD); 334 /* 335 * open files 336 */ 337#define FPSIZE (sizeof (struct file *)) 338 ALLOC_OFILES(filed.fd_lastfile+1); 339 if (filed.fd_nfiles > NDFILE) { 340 if (!KVM_READ(filed.fd_ofiles, ofiles, 341 (filed.fd_lastfile+1) * FPSIZE)) { 342 dprintf(stderr, 343 "can't read file structures at %p for pid %d\n", 344 (void *)filed.fd_ofiles, Pid); 345 return; 346 } 347 } else 348 bcopy(filed0.fd_dfiles, ofiles, (filed.fd_lastfile+1) * FPSIZE); 349 for (i = 0; i <= filed.fd_lastfile; i++) { 350 if (ofiles[i] == NULL) 351 continue; 352 if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) { 353 dprintf(stderr, "can't read file %d at %p for pid %d\n", 354 i, (void *)ofiles[i], Pid); 355 continue; 356 } 357 if (file.f_type == DTYPE_VNODE) 358 vtrans((struct vnode *)file.f_data, i, file.f_flag); 359 else if (file.f_type == DTYPE_SOCKET) { 360 if (checkfile == 0) 361 socktrans((struct socket *)file.f_data, i); 362 } 363#ifdef DTYPE_PIPE 364 else if (file.f_type == DTYPE_PIPE) { 365 if (checkfile == 0) 366 pipetrans((struct pipe *)file.f_data, i, 367 file.f_flag); 368 } 369#endif 370 else { 371 dprintf(stderr, 372 "unknown file type %d for file %d of pid %d\n", 373 file.f_type, i, Pid); 374 } 375 } 376} 377 378void 379dommap(kp) 380 struct kinfo_proc *kp; 381{ 382 struct proc *p = &kp->kp_proc; 383 struct vmspace vmspace; 384 vm_map_t map; 385 struct vm_map_entry entry; 386 vm_map_entry_t entryp; 387 struct vm_object object; 388 vm_object_t objp; 389 int prot, fflags; 390 391 if (!KVM_READ(p->p_vmspace, &vmspace, sizeof(vmspace))) { 392 dprintf(stderr, "can't read vmspace at %p for pid %d\n", 393 (void *)p->p_vmspace, Pid); 394 return; 395 } 396 397 map = &vmspace.vm_map; 398 399 for (entryp = map->header.next; entryp != &p->p_vmspace->vm_map.header; 400 entryp = entry.next) { 401 if (!KVM_READ(entryp, &entry, sizeof(entry))) { 402 dprintf(stderr, 403 "can't read vm_map_entry at %p for pid %d\n", 404 (void *)entryp, Pid); 405 return; 406 } 407 408 if (entry.eflags & MAP_ENTRY_IS_SUB_MAP) 409 continue; 410 411 if ((objp = entry.object.vm_object) == NULL) 412 continue; 413 414 for (; objp; objp = object.backing_object) { 415 if (!KVM_READ(objp, &object, sizeof(object))) { 416 dprintf(stderr, 417 "can't read vm_object at %p for pid %d\n", 418 (void *)objp, Pid); 419 return; 420 } 421 } 422 423 prot = entry.protection; 424 fflags = (prot & VM_PROT_READ ? FREAD : 0) | 425 (prot & VM_PROT_WRITE ? FWRITE : 0); 426 427 switch (object.type) { 428 case OBJT_VNODE: 429 vtrans((struct vnode *)object.handle, MMAP, fflags); 430 break; 431 default: 432 break; 433 } 434 } 435} 436 437void 438vtrans(vp, i, flag) 439 struct vnode *vp; 440 int i; 441 int flag; 442{ 443 struct vnode vn; 444 struct filestat fst; 445 char rw[3], mode[15]; 446 char *badtype = NULL, *filename, *getmnton(); 447 448 filename = badtype = NULL; 449 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 450 dprintf(stderr, "can't read vnode at %p for pid %d\n", 451 (void *)vp, Pid); 452 return; 453 } 454 if (vn.v_type == VNON || vn.v_tag == VT_NON) 455 badtype = "none"; 456 else if (vn.v_type == VBAD) 457 badtype = "bad"; 458 else 459 switch (vn.v_tag) { 460 case VT_UFS: 461 if (!ufs_filestat(&vn, &fst)) 462 badtype = "error"; 463 break; 464 case VT_MFS: 465 if (!ufs_filestat(&vn, &fst)) 466 badtype = "error"; 467 break; 468 case VT_NFS: 469 if (!nfs_filestat(&vn, &fst)) 470 badtype = "error"; 471 break; 472 473 case VT_MSDOSFS: 474 if (!msdosfs_filestat(&vn, &fst)) 475 badtype = "error"; 476 break; 477 478 case VT_ISOFS: 479 if (!isofs_filestat(&vn, &fst)) 480 badtype = "error"; 481 break; 482 483 default: { 484 static char unknown[10]; 485 sprintf(badtype = unknown, "?(%x)", vn.v_tag); 486 break;; 487 } 488 } 489 if (checkfile) { 490 int fsmatch = 0; 491 register DEVS *d; 492 493 if (badtype) 494 return; 495 for (d = devs; d != NULL; d = d->next) 496 if (d->fsid == fst.fsid) { 497 fsmatch = 1; 498 if (d->ino == fst.fileid) { 499 filename = d->name; 500 break; 501 } 502 } 503 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 504 return; 505 } 506 PREFIX(i); 507 if (badtype) { 508 (void)printf(" - - %10s -\n", badtype); 509 return; 510 } 511 if (nflg) 512 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 513 else 514 (void)printf(" %-8s", getmnton(vn.v_mount)); 515 if (nflg) 516 (void)sprintf(mode, "%o", fst.mode); 517 else 518 strmode(fst.mode, mode); 519 (void)printf(" %6ld %10s", fst.fileid, mode); 520 switch (vn.v_type) { 521 case VBLK: 522 case VCHR: { 523 char *name; 524 525 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 526 S_IFCHR : S_IFBLK)) == NULL)) 527 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 528 else 529 printf(" %6s", name); 530 break; 531 } 532 default: 533 printf(" %6lu", fst.size); 534 } 535 rw[0] = '\0'; 536 if (flag & FREAD) 537 strcat(rw, "r"); 538 if (flag & FWRITE) 539 strcat(rw, "w"); 540 printf(" %2s", rw); 541 if (filename && !fsflg) 542 printf(" %s", filename); 543 putchar('\n'); 544} 545 546int 547ufs_filestat(vp, fsp) 548 struct vnode *vp; 549 struct filestat *fsp; 550{ 551 struct inode inode; 552 553 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 554 dprintf(stderr, "can't read inode at %p for pid %d\n", 555 (void *)VTOI(vp), Pid); 556 return 0; 557 } 558 /* 559 * The st_dev from stat(2) is a udev_t. These kernel structures 560 * contain dev_t structures. We need to convert to udev to make 561 * comparisons 562 */ 563 fsp->fsid = dev2udev(inode.i_dev) & 0xffff; 564 fsp->fileid = (long)inode.i_number; 565 fsp->mode = (mode_t)inode.i_mode; 566 fsp->size = (u_long)inode.i_size; 567 fsp->rdev = inode.i_rdev; 568 569 return 1; 570} 571 572int 573nfs_filestat(vp, fsp) 574 struct vnode *vp; 575 struct filestat *fsp; 576{ 577 struct nfsnode nfsnode; 578 register mode_t mode; 579 580 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 581 dprintf(stderr, "can't read nfsnode at %p for pid %d\n", 582 (void *)VTONFS(vp), Pid); 583 return 0; 584 } 585 fsp->fsid = nfsnode.n_vattr.va_fsid; 586 fsp->fileid = nfsnode.n_vattr.va_fileid; 587 fsp->size = nfsnode.n_size; 588 fsp->rdev = nfsnode.n_vattr.va_rdev; 589 mode = (mode_t)nfsnode.n_vattr.va_mode; 590 switch (vp->v_type) { 591 case VREG: 592 mode |= S_IFREG; 593 break; 594 case VDIR: 595 mode |= S_IFDIR; 596 break; 597 case VBLK: 598 mode |= S_IFBLK; 599 break; 600 case VCHR: 601 mode |= S_IFCHR; 602 break; 603 case VLNK: 604 mode |= S_IFLNK; 605 break; 606 case VSOCK: 607 mode |= S_IFSOCK; 608 break; 609 case VFIFO: 610 mode |= S_IFIFO; 611 break; 612 case VNON: 613 case VBAD: 614 return 0; 615 }; 616 fsp->mode = mode; 617 618 return 1; 619} 620 621 622char * 623getmnton(m) 624 struct mount *m; 625{ 626 static struct mount mount; 627 static struct mtab { 628 struct mtab *next; 629 struct mount *m; 630 char mntonname[MNAMELEN]; 631 } *mhead = NULL; 632 register struct mtab *mt; 633 634 for (mt = mhead; mt != NULL; mt = mt->next) 635 if (m == mt->m) 636 return (mt->mntonname); 637 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 638 warnx("can't read mount table at %p", (void *)m); 639 return (NULL); 640 } 641 if ((mt = malloc(sizeof (struct mtab))) == NULL) 642 err(1, NULL); 643 mt->m = m; 644 bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN); 645 mt->next = mhead; 646 mhead = mt; 647 return (mt->mntonname); 648} 649 650void 651pipetrans(pi, i, flag) 652 struct pipe *pi; 653 int i; 654 int flag; 655{ 656 struct pipe pip; 657 char rw[3]; 658 659 PREFIX(i); 660 661 /* fill in socket */ 662 if (!KVM_READ(pi, &pip, sizeof(struct pipe))) { 663 dprintf(stderr, "can't read pipe at %p\n", (void *)pi); 664 goto bad; 665 } 666 667 printf("* pipe %8x <-> %8x", (int)pi, (int)pip.pipe_peer); 668 printf(" %6d", (int)pip.pipe_buffer.cnt); 669 rw[0] = '\0'; 670 if (flag & FREAD) 671 strcat(rw, "r"); 672 if (flag & FWRITE) 673 strcat(rw, "w"); 674 printf(" %2s", rw); 675 putchar('\n'); 676 return; 677 678bad: 679 printf("* error\n"); 680} 681 682void 683socktrans(sock, i) 684 struct socket *sock; 685 int i; 686{ 687 static char *stypename[] = { 688 "unused", /* 0 */ 689 "stream", /* 1 */ 690 "dgram", /* 2 */ 691 "raw", /* 3 */ 692 "rdm", /* 4 */ 693 "seqpak" /* 5 */ 694 }; 695#define STYPEMAX 5 696 struct socket so; 697 struct protosw proto; 698 struct domain dom; 699 struct inpcb inpcb; 700 struct unpcb unpcb; 701 int len; 702 char dname[32], *strcpy(); 703 704 PREFIX(i); 705 706 /* fill in socket */ 707 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 708 dprintf(stderr, "can't read sock at %p\n", (void *)sock); 709 goto bad; 710 } 711 712 /* fill in protosw entry */ 713 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 714 dprintf(stderr, "can't read protosw at %p", 715 (void *)so.so_proto); 716 goto bad; 717 } 718 719 /* fill in domain */ 720 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 721 dprintf(stderr, "can't read domain at %p\n", 722 (void *)proto.pr_domain); 723 goto bad; 724 } 725 726 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 727 sizeof(dname) - 1)) < 0) { 728 dprintf(stderr, "can't read domain name at %p\n", 729 (void *)dom.dom_name); 730 dname[0] = '\0'; 731 } 732 else 733 dname[len] = '\0'; 734 735 if ((u_short)so.so_type > STYPEMAX) 736 printf("* %s ?%d", dname, so.so_type); 737 else 738 printf("* %s %s", dname, stypename[so.so_type]); 739 740 /* 741 * protocol specific formatting 742 * 743 * Try to find interesting things to print. For tcp, the interesting 744 * thing is the address of the tcpcb, for udp and others, just the 745 * inpcb (socket pcb). For unix domain, its the address of the socket 746 * pcb and the address of the connected pcb (if connected). Otherwise 747 * just print the protocol number and address of the socket itself. 748 * The idea is not to duplicate netstat, but to make available enough 749 * information for further analysis. 750 */ 751 switch(dom.dom_family) { 752 case AF_INET: 753 case AF_INET6: 754 getinetproto(proto.pr_protocol); 755 if (proto.pr_protocol == IPPROTO_TCP ) { 756 if (so.so_pcb) { 757 if (kvm_read(kd, (u_long)so.so_pcb, 758 (char *)&inpcb, sizeof(struct inpcb)) 759 != sizeof(struct inpcb)) { 760 dprintf(stderr, 761 "can't read inpcb at %p\n", 762 (void *)so.so_pcb); 763 goto bad; 764 } 765 printf(" %x", (int)inpcb.inp_ppcb); 766 } 767 } 768 else if (so.so_pcb) 769 printf(" %x", (int)so.so_pcb); 770 break; 771 case AF_UNIX: 772 /* print address of pcb and connected pcb */ 773 if (so.so_pcb) { 774 printf(" %x", (int)so.so_pcb); 775 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 776 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 777 dprintf(stderr, "can't read unpcb at %p\n", 778 (void *)so.so_pcb); 779 goto bad; 780 } 781 if (unpcb.unp_conn) { 782 char shoconn[4], *cp; 783 784 cp = shoconn; 785 if (!(so.so_state & SS_CANTRCVMORE)) 786 *cp++ = '<'; 787 *cp++ = '-'; 788 if (!(so.so_state & SS_CANTSENDMORE)) 789 *cp++ = '>'; 790 *cp = '\0'; 791 printf(" %s %x", shoconn, 792 (int)unpcb.unp_conn); 793 } 794 } 795 break; 796 default: 797 /* print protocol number and socket address */ 798 printf(" %d %x", proto.pr_protocol, (int)sock); 799 } 800 printf("\n"); 801 return; 802bad: 803 printf("* error\n"); 804} 805 806 807/* 808 * Read the specinfo structure in the kernel (as pointed to by a dev_t) 809 * in order to work out the associated udev_t 810 */ 811udev_t 812dev2udev(dev) 813 dev_t dev; 814{ 815 struct specinfo si; 816 817 if (KVM_READ(dev, &si, sizeof si)) { 818 return si.si_udev; 819 } else { 820 dprintf(stderr, "can't convert dev_t %p to a udev_t\n", 821 (void *)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