fstat.c revision 1.36
1 /* $NetBSD: fstat.c,v 1.36 1999/07/08 12:07:56 tron Exp $ */ 2 3 /*- 4 * Copyright (c) 1988, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1988, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95"; 45 #else 46 __RCSID("$NetBSD: fstat.c,v 1.36 1999/07/08 12:07:56 tron Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/time.h> 52 #include <sys/proc.h> 53 #include <sys/user.h> 54 #include <sys/stat.h> 55 #include <sys/vnode.h> 56 #include <sys/socket.h> 57 #include <sys/socketvar.h> 58 #include <sys/domain.h> 59 #include <sys/protosw.h> 60 #include <sys/unpcb.h> 61 #include <sys/sysctl.h> 62 #include <sys/filedesc.h> 63 #define _KERNEL 64 #define _LKM 65 #include <sys/file.h> 66 #include <ufs/ufs/quota.h> 67 #include <ufs/ufs/inode.h> 68 #undef _LKM 69 #undef _KERNEL 70 #define NFS 71 #include <sys/mount.h> 72 #include <nfs/nfsproto.h> 73 #include <nfs/rpcv2.h> 74 #include <nfs/nfs.h> 75 #include <nfs/nfsnode.h> 76 #undef NFS 77 78 #include <net/route.h> 79 #include <netinet/in.h> 80 #include <netinet/in_systm.h> 81 #include <netinet/ip.h> 82 #include <netinet/in_pcb.h> 83 84 #include <arpa/inet.h> 85 86 #include <ctype.h> 87 #include <errno.h> 88 #include <kvm.h> 89 #include <limits.h> 90 #include <nlist.h> 91 #include <paths.h> 92 #include <pwd.h> 93 #include <stdio.h> 94 #include <stdlib.h> 95 #include <string.h> 96 #include <unistd.h> 97 #include <err.h> 98 99 #include "fstat.h" 100 101 #define TEXT -1 102 #define CDIR -2 103 #define RDIR -3 104 #define TRACE -4 105 106 typedef struct devs { 107 struct devs *next; 108 long fsid; 109 ino_t ino; 110 char *name; 111 } DEVS; 112 DEVS *devs; 113 114 int fsflg, /* show files on same filesystem as file(s) argument */ 115 pflg, /* show files open by a particular pid */ 116 uflg; /* show files open by a particular (effective) user */ 117 int checkfile; /* true if restricting to particular files or filesystems */ 118 int nflg; /* (numerical) display f.s. and rdev as dev_t */ 119 int vflg; /* display errors in locating kernel data objects etc... */ 120 121 struct file **ofiles; /* buffer of pointers to file structures */ 122 int maxfiles; 123 #define ALLOC_OFILES(d) \ 124 if ((d) > maxfiles) { \ 125 free(ofiles); \ 126 ofiles = malloc((d) * sizeof(struct file *)); \ 127 if (ofiles == NULL) { \ 128 err(1, "malloc(%u)", (d) * \ 129 (unsigned int)sizeof(struct file *)); \ 130 } \ 131 maxfiles = (d); \ 132 } 133 134 kvm_t *kd; 135 136 void dofiles __P((struct kinfo_proc *)); 137 int ext2fs_filestat __P((struct vnode *, struct filestat *)); 138 int getfname __P((char *)); 139 void getinetproto __P((int)); 140 char *getmnton __P((struct mount *)); 141 int main __P((int, char **)); 142 int nfs_filestat __P((struct vnode *, struct filestat *)); 143 void socktrans __P((struct socket *, int)); 144 int ufs_filestat __P((struct vnode *, struct filestat *)); 145 void usage __P((void)); 146 void vtrans __P((struct vnode *, int, int)); 147 148 int 149 main(argc, argv) 150 int argc; 151 char **argv; 152 { 153 struct passwd *passwd; 154 struct kinfo_proc *p, *plast; 155 int arg, ch, what; 156 char *memf, *nlistf; 157 char buf[_POSIX2_LINE_MAX]; 158 int cnt; 159 gid_t egid = getegid(); 160 161 (void)setegid(getgid()); 162 arg = 0; 163 what = KERN_PROC_ALL; 164 nlistf = memf = NULL; 165 while ((ch = getopt(argc, argv, "fnp:u:vN:M:")) != -1) 166 switch((char)ch) { 167 case 'f': 168 fsflg = 1; 169 break; 170 case 'M': 171 memf = optarg; 172 break; 173 case 'N': 174 nlistf = optarg; 175 break; 176 case 'n': 177 nflg = 1; 178 break; 179 case 'p': 180 if (pflg++) 181 usage(); 182 if (!isdigit(*optarg)) { 183 warnx("-p requires a process id"); 184 usage(); 185 } 186 what = KERN_PROC_PID; 187 arg = atoi(optarg); 188 break; 189 case 'u': 190 if (uflg++) 191 usage(); 192 if (!(passwd = getpwnam(optarg))) { 193 errx(1, "%s: unknown uid", optarg); 194 } 195 what = KERN_PROC_UID; 196 arg = passwd->pw_uid; 197 break; 198 case 'v': 199 vflg = 1; 200 break; 201 case '?': 202 default: 203 usage(); 204 } 205 206 if (*(argv += optind)) { 207 for (; *argv; ++argv) { 208 if (getfname(*argv)) 209 checkfile = 1; 210 } 211 if (!checkfile) /* file(s) specified, but none accessable */ 212 exit(1); 213 } 214 215 ALLOC_OFILES(256); /* reserve space for file pointers */ 216 217 if (fsflg && !checkfile) { 218 /* -f with no files means use wd */ 219 if (getfname(".") == 0) 220 exit(1); 221 checkfile = 1; 222 } 223 224 /* 225 * Discard setgid privileges. If not the running kernel, we toss 226 * them away totally so that bad guys can't print interesting stuff 227 * from kernel memory, otherwise switch back to kmem for the 228 * duration of the kvm_openfiles() call. 229 */ 230 if (nlistf != NULL || memf != NULL) 231 (void)setgid(getgid()); 232 else 233 (void)setegid(egid); 234 235 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) 236 errx(1, "%s", buf); 237 238 /* get rid of it now anyway */ 239 if (nlistf == NULL && memf == NULL) 240 (void)setgid(getgid()); 241 242 if ((p = kvm_getprocs(kd, what, arg, &cnt)) == NULL) { 243 errx(1, "%s", kvm_geterr(kd)); 244 } 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->kp_proc.p_stat == SZOMB) 258 continue; 259 dofiles(p); 260 } 261 exit(0); 262 } 263 264 const char *Uname, *Comm; 265 pid_t Pid; 266 267 #define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \ 268 switch(i) { \ 269 case TEXT: \ 270 printf(" text"); \ 271 break; \ 272 case CDIR: \ 273 printf(" wd"); \ 274 break; \ 275 case RDIR: \ 276 printf(" root"); \ 277 break; \ 278 case TRACE: \ 279 printf(" tr"); \ 280 break; \ 281 default: \ 282 printf(" %4d", i); \ 283 break; \ 284 } 285 286 /* 287 * print open files attributed to this process 288 */ 289 void 290 dofiles(kp) 291 struct kinfo_proc *kp; 292 { 293 int i; 294 struct file file; 295 struct filedesc0 filed0; 296 #define filed filed0.fd_fd 297 struct cwdinfo cwdi; 298 struct proc *p = &kp->kp_proc; 299 struct eproc *ep = &kp->kp_eproc; 300 301 Uname = user_from_uid(ep->e_ucred.cr_uid, 0); 302 Pid = p->p_pid; 303 Comm = p->p_comm; 304 305 if (p->p_fd == NULL || p->p_cwdi == NULL) 306 return; 307 if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) { 308 warnx("can't read filedesc at %p for pid %d", p->p_fd, Pid); 309 return; 310 } 311 if (!KVM_READ(p->p_cwdi, &cwdi, sizeof(cwdi))) { 312 warnx("can't read cwdinfo at %p for pid %d", p->p_cwdi, Pid); 313 return; 314 } 315 if (filed.fd_nfiles < 0 || filed.fd_lastfile >= filed.fd_nfiles || 316 filed.fd_freefile > filed.fd_lastfile + 1) { 317 dprintf("filedesc corrupted at %p for pid %d", p->p_fd, Pid); 318 return; 319 } 320 /* 321 * root directory vnode, if one 322 */ 323 if (cwdi.cwdi_rdir) 324 vtrans(cwdi.cwdi_rdir, RDIR, FREAD); 325 /* 326 * current working directory vnode 327 */ 328 vtrans(cwdi.cwdi_cdir, CDIR, FREAD); 329 /* 330 * ktrace vnode, if one 331 */ 332 if (p->p_tracep) 333 vtrans(p->p_tracep, TRACE, FREAD|FWRITE); 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("can't read file structures at %p for pid %d", 343 filed.fd_ofiles, Pid); 344 return; 345 } 346 } else 347 memmove(ofiles, filed0.fd_dfiles, 348 (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("can't read file %d at %p for pid %d", 354 i, 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 else { 364 dprintf("unknown file type %d for file %d of pid %d", 365 file.f_type, i, Pid); 366 } 367 } 368 } 369 370 void 371 vtrans(vp, i, flag) 372 struct vnode *vp; 373 int i; 374 int flag; 375 { 376 struct vnode vn; 377 struct filestat fst; 378 char mode[15], rw[3]; 379 char *badtype = NULL, *filename; 380 381 filename = badtype = NULL; 382 if (!KVM_READ(vp, &vn, sizeof (struct vnode))) { 383 dprintf("can't read vnode at %p for pid %d", vp, Pid); 384 return; 385 } 386 if (vn.v_type == VNON || vn.v_tag == VT_NON) 387 badtype = "none"; 388 else if (vn.v_type == VBAD) 389 badtype = "bad"; 390 else 391 switch (vn.v_tag) { 392 case VT_UFS: 393 if (!ufs_filestat(&vn, &fst)) 394 badtype = "error"; 395 break; 396 case VT_MFS: 397 if (!ufs_filestat(&vn, &fst)) 398 badtype = "error"; 399 break; 400 case VT_NFS: 401 if (!nfs_filestat(&vn, &fst)) 402 badtype = "error"; 403 break; 404 case VT_EXT2FS: 405 if (!ext2fs_filestat(&vn, &fst)) 406 badtype = "error"; 407 break; 408 case VT_ISOFS: 409 if (!isofs_filestat(&vn, &fst)) 410 badtype = "error"; 411 break; 412 default: { 413 static char unknown[10]; 414 (void)snprintf(badtype = unknown, sizeof unknown, 415 "?(%x)", vn.v_tag); 416 break;; 417 } 418 } 419 if (checkfile) { 420 int fsmatch = 0; 421 DEVS *d; 422 423 if (badtype) 424 return; 425 for (d = devs; d != NULL; d = d->next) 426 if (d->fsid == fst.fsid) { 427 fsmatch = 1; 428 if (d->ino == fst.fileid) { 429 filename = d->name; 430 break; 431 } 432 } 433 if (fsmatch == 0 || (filename == NULL && fsflg == 0)) 434 return; 435 } 436 PREFIX(i); 437 if (badtype) { 438 (void)printf(" - - %10s -\n", badtype); 439 return; 440 } 441 if (nflg) 442 (void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid)); 443 else 444 (void)printf(" %-8s", getmnton(vn.v_mount)); 445 if (nflg) 446 (void)snprintf(mode, sizeof mode, "%o", fst.mode); 447 else 448 strmode(fst.mode, mode); 449 (void)printf(" %6ld %10s", (long)fst.fileid, mode); 450 switch (vn.v_type) { 451 case VBLK: 452 case VCHR: { 453 char *name; 454 455 if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ? 456 S_IFCHR : S_IFBLK)) == NULL)) 457 printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev)); 458 else 459 printf(" %6s", name); 460 break; 461 } 462 default: 463 printf(" %6qd", (long long)fst.size); 464 } 465 rw[0] = '\0'; 466 if (flag & FREAD) 467 strcat(rw, "r"); 468 if (flag & FWRITE) 469 strcat(rw, "w"); 470 printf(" %-2s", rw); 471 if (filename && !fsflg) 472 printf(" %s", filename); 473 putchar('\n'); 474 } 475 476 int 477 ufs_filestat(vp, fsp) 478 struct vnode *vp; 479 struct filestat *fsp; 480 { 481 struct inode inode; 482 483 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 484 dprintf("can't read inode at %p for pid %d", VTOI(vp), Pid); 485 return 0; 486 } 487 fsp->fsid = inode.i_dev & 0xffff; 488 fsp->fileid = (long)inode.i_number; 489 fsp->mode = (mode_t)inode.i_ffs_mode; 490 fsp->size = inode.i_ffs_size; 491 fsp->rdev = inode.i_ffs_rdev; 492 493 return 1; 494 } 495 496 int 497 ext2fs_filestat(vp, fsp) 498 struct vnode *vp; 499 struct filestat *fsp; 500 { 501 struct inode inode; 502 503 if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) { 504 dprintf("can't read inode at %p for pid %d", VTOI(vp), Pid); 505 return 0; 506 } 507 fsp->fsid = inode.i_dev & 0xffff; 508 fsp->fileid = (long)inode.i_number; 509 fsp->mode = (mode_t)inode.i_e2fs_mode; 510 fsp->size = inode.i_e2fs_size; 511 fsp->rdev = 0; /* XXX */ 512 return 1; 513 } 514 515 int 516 nfs_filestat(vp, fsp) 517 struct vnode *vp; 518 struct filestat *fsp; 519 { 520 struct nfsnode nfsnode; 521 struct vattr va; 522 mode_t mode; 523 524 if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) { 525 dprintf("can't read nfsnode at %p for pid %d", VTONFS(vp), 526 Pid); 527 return 0; 528 } 529 if (!KVM_READ(nfsnode.n_vattr, &va, sizeof(va))) { 530 dprintf("can't read vnode attributes at %p for pid %d", 531 nfsnode.n_vattr, Pid); 532 return 0; 533 } 534 fsp->fsid = va.va_fsid; 535 fsp->fileid = va.va_fileid; 536 fsp->size = nfsnode.n_size; 537 fsp->rdev = va.va_rdev; 538 mode = (mode_t)va.va_mode; 539 switch (vp->v_type) { 540 case VREG: 541 mode |= S_IFREG; 542 break; 543 case VDIR: 544 mode |= S_IFDIR; 545 break; 546 case VBLK: 547 mode |= S_IFBLK; 548 break; 549 case VCHR: 550 mode |= S_IFCHR; 551 break; 552 case VLNK: 553 mode |= S_IFLNK; 554 break; 555 case VSOCK: 556 mode |= S_IFSOCK; 557 break; 558 case VFIFO: 559 mode |= S_IFIFO; 560 break; 561 default: 562 break; 563 }; 564 fsp->mode = mode; 565 566 return 1; 567 } 568 569 570 char * 571 getmnton(m) 572 struct mount *m; 573 { 574 static struct mount mount; 575 static struct mtab { 576 struct mtab *next; 577 struct mount *m; 578 char mntonname[MNAMELEN]; 579 } *mhead = NULL; 580 struct mtab *mt; 581 582 for (mt = mhead; mt != NULL; mt = mt->next) 583 if (m == mt->m) 584 return (mt->mntonname); 585 if (!KVM_READ(m, &mount, sizeof(struct mount))) { 586 warnx("can't read mount table at %p", m); 587 return (NULL); 588 } 589 if ((mt = malloc(sizeof (struct mtab))) == NULL) { 590 err(1, "malloc(%u)", (unsigned int)sizeof(struct mtab)); 591 } 592 mt->m = m; 593 memmove(&mt->mntonname[0], &mount.mnt_stat.f_mntonname[0], MNAMELEN); 594 mt->next = mhead; 595 mhead = mt; 596 return (mt->mntonname); 597 } 598 599 void 600 socktrans(sock, i) 601 struct socket *sock; 602 int i; 603 { 604 static char *stypename[] = { 605 "unused", /* 0 */ 606 "stream", /* 1 */ 607 "dgram", /* 2 */ 608 "raw", /* 3 */ 609 "rdm", /* 4 */ 610 "seqpak" /* 5 */ 611 }; 612 #define STYPEMAX 5 613 struct socket so; 614 struct protosw proto; 615 struct domain dom; 616 struct inpcb inpcb; 617 struct unpcb unpcb; 618 int len; 619 char dname[32]; 620 621 PREFIX(i); 622 623 /* fill in socket */ 624 if (!KVM_READ(sock, &so, sizeof(struct socket))) { 625 dprintf("can't read sock at %p", sock); 626 goto bad; 627 } 628 629 /* fill in protosw entry */ 630 if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) { 631 dprintf("can't read protosw at %p", so.so_proto); 632 goto bad; 633 } 634 635 /* fill in domain */ 636 if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) { 637 dprintf("can't read domain at %p", proto.pr_domain); 638 goto bad; 639 } 640 641 if ((len = kvm_read(kd, (u_long)dom.dom_name, dname, 642 sizeof(dname) - 1)) != sizeof(dname) -1) { 643 dprintf("can't read domain name at %p", dom.dom_name); 644 dname[0] = '\0'; 645 } 646 else 647 dname[len] = '\0'; 648 649 if ((u_short)so.so_type > STYPEMAX) 650 printf("* %s ?%d", dname, so.so_type); 651 else 652 printf("* %s %s", dname, stypename[so.so_type]); 653 654 /* 655 * protocol specific formatting 656 * 657 * Try to find interesting things to print. For TCP, the interesting 658 * thing is the address of the tcpcb, for UDP and others, just the 659 * inpcb (socket pcb). For UNIX domain, its the address of the socket 660 * pcb and the address of the connected pcb (if connected). Otherwise 661 * just print the protocol number and address of the socket itself. 662 * The idea is not to duplicate netstat, but to make available enough 663 * information for further analysis. 664 */ 665 switch(dom.dom_family) { 666 case AF_INET: 667 getinetproto(proto.pr_protocol); 668 if (proto.pr_protocol == IPPROTO_TCP) { 669 if (so.so_pcb == NULL) 670 break; 671 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&inpcb, 672 sizeof(struct inpcb)) != sizeof(struct inpcb)) { 673 dprintf("can't read inpcb at %p", so.so_pcb); 674 goto bad; 675 } 676 printf(" %lx", (long)inpcb.inp_ppcb); 677 printf(" %s:%d", 678 inpcb.inp_laddr.s_addr == INADDR_ANY ? "*" : 679 inet_ntoa(inpcb.inp_laddr), ntohs(inpcb.inp_lport)); 680 if (inpcb.inp_fport) { 681 printf(" <-> "); 682 printf("%s:%d", 683 inpcb.inp_faddr.s_addr == INADDR_ANY ? "*" : 684 inet_ntoa(inpcb.inp_faddr), 685 ntohs(inpcb.inp_fport)); 686 } 687 } else if (proto.pr_protocol == IPPROTO_UDP) { 688 if (so.so_pcb == NULL) 689 break; 690 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&inpcb, 691 sizeof(struct inpcb)) != sizeof(struct inpcb)) { 692 dprintf("can't read inpcb at %p", so.so_pcb); 693 goto bad; 694 } 695 printf(" %lx", (long)so.so_pcb); 696 printf(" %s:%d", 697 inpcb.inp_laddr.s_addr == INADDR_ANY ? "*" : 698 inet_ntoa(inpcb.inp_laddr), ntohs(inpcb.inp_lport)); 699 if (inpcb.inp_fport) 700 printf(" <-> %s:%d", 701 inpcb.inp_faddr.s_addr == INADDR_ANY ? "*" : 702 inet_ntoa(inpcb.inp_faddr), 703 ntohs(inpcb.inp_fport)); 704 } else if (so.so_pcb) 705 printf(" %lx", (long)so.so_pcb); 706 break; 707 case AF_LOCAL: 708 /* print address of pcb and connected pcb */ 709 if (so.so_pcb) { 710 printf(" %lx", (long)so.so_pcb); 711 if (kvm_read(kd, (u_long)so.so_pcb, (char *)&unpcb, 712 sizeof(struct unpcb)) != sizeof(struct unpcb)){ 713 dprintf("can't read unpcb at %p", so.so_pcb); 714 goto bad; 715 } 716 if (unpcb.unp_conn) { 717 char shoconn[4], *cp; 718 719 cp = shoconn; 720 if (!(so.so_state & SS_CANTRCVMORE)) 721 *cp++ = '<'; 722 *cp++ = '-'; 723 if (!(so.so_state & SS_CANTSENDMORE)) 724 *cp++ = '>'; 725 *cp = '\0'; 726 printf(" %s %lx", shoconn, 727 (long)unpcb.unp_conn); 728 } 729 } 730 break; 731 default: 732 /* print protocol number and socket address */ 733 printf(" %d %lx", proto.pr_protocol, (long)sock); 734 } 735 printf("\n"); 736 return; 737 bad: 738 printf("* error\n"); 739 } 740 741 /* 742 * getinetproto -- 743 * print name of protocol number 744 */ 745 void 746 getinetproto(number) 747 int number; 748 { 749 char *cp; 750 751 switch (number) { 752 case IPPROTO_IP: 753 cp = "ip"; break; 754 case IPPROTO_ICMP: 755 cp ="icmp"; break; 756 case IPPROTO_GGP: 757 cp ="ggp"; break; 758 case IPPROTO_TCP: 759 cp ="tcp"; break; 760 case IPPROTO_EGP: 761 cp ="egp"; break; 762 case IPPROTO_PUP: 763 cp ="pup"; break; 764 case IPPROTO_UDP: 765 cp ="udp"; break; 766 case IPPROTO_IDP: 767 cp ="idp"; break; 768 case IPPROTO_RAW: 769 cp ="raw"; break; 770 default: 771 printf(" %d", number); 772 return; 773 } 774 printf(" %s", cp); 775 } 776 777 int 778 getfname(filename) 779 char *filename; 780 { 781 struct stat statbuf; 782 DEVS *cur; 783 784 if (stat(filename, &statbuf)) { 785 warn("stat(%s)", filename); 786 return(0); 787 } 788 if ((cur = malloc(sizeof(DEVS))) == NULL) { 789 err(1, "malloc(%u)", (unsigned int)sizeof(DEVS)); 790 } 791 cur->next = devs; 792 devs = cur; 793 794 cur->ino = statbuf.st_ino; 795 cur->fsid = statbuf.st_dev & 0xffff; 796 cur->name = filename; 797 return(1); 798 } 799 800 void 801 usage() 802 { 803 errx(1, 804 "usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n"); 805 } 806
Indexes created Tue Sep 23 07:09:52 GMT 2025