sbin/kldstat/kldstat.c

   1 /*-
   2  * Copyright (c) 1997 Doug Rabson
   3  * 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  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sbin/kldstat/kldstat.c,v 1.7.2.2 2000/07/01 07:56:00 ps Exp $
  27  * $DragonFly: src/sbin/kldstat/kldstat.c,v 1.4 2005/04/22 04:23:23 swildner Exp $
  28  */
  29
  30 #include <sys/types.h>
  31 #include <sys/param.h>
  32 #include <sys/module.h>
  33 #include <sys/linker.h>
  34
  35 #include <err.h>
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <unistd.h>
  39
  40 #define POINTER_WIDTH   10
  41
  42 static void
  43 printmod(int modid)
  44 {
  45     struct module_stat stat;
  46
  47     stat.version = sizeof(struct module_stat);
  48     if (modstat(modid, &stat) < 0)
  49         warn("can't stat module id %d", modid);
  50     else
  51         printf("\t\t%2d %s\n", stat.id, stat.name);
  52 }
  53
  54 static void
  55 printfile(int fileid, int verbose)
  56 {
  57     struct kld_file_stat stat;
  58     int modid;
  59
  60     stat.version = sizeof(struct kld_file_stat);
  61     if (kldstat(fileid, &stat) < 0)
  62         warn("can't stat file id %d", fileid);
  63     else
  64         printf("%2d %4d %p %-8x %s\n",
  65                stat.id, stat.refs, stat.address, stat.size, stat.name);
  66
  67     if (verbose) {
  68         printf("\tContains modules:\n");
  69         printf("\t\tId Name\n");
  70         for (modid = kldfirstmod(fileid); modid > 0;
  71              modid = modfnext(modid))
  72             printmod(modid);
  73     }
  74 }
  75
  76 static void
  77 usage(void)
  78 {
  79     fprintf(stderr, "usage: kldstat [-v] [-i id] [-n name]\n");
  80     exit(1);
  81 }
  82
  83 int
  84 main(int argc, char** argv)
  85 {
  86     int c;
  87     int verbose = 0;
  88     int fileid = 0;
  89     long tmp;
  90     char* filename = NULL;
  91     char *ep;
  92
  93     while ((c = getopt(argc, argv, "i:n:v")) != -1)
  94         switch (c) {
  95         case 'i':
  96             tmp = strtol(optarg, &ep, 10);
  97             if (*ep != NULL || tmp < INT_MIN || tmp > INT_MAX)
  98                 errx(1, "invalid id value: %s", optarg);
  99             fileid = (int)tmp;
 100             break;
 101         case 'n':
 102             filename = optarg;
 103             break;
 104         case 'v':
 105             verbose = 1;
 106             break;
 107         default:
 108             usage();
 109         }
 110     argc -= optind;
 111     argv += optind;
 112
 113     if (argc != 0)
 114         usage();
 115
 116     if (filename != NULL) {
 117         if ((fileid = kldfind(filename)) < 0)
 118             err(1, "can't find file %s", filename);
 119     }
 120
 121     printf("Id Refs Address%*c Size     Name\n", POINTER_WIDTH - 7, ' ');
 122     if (fileid)
 123         printfile(fileid, verbose);
 124     else
 125         for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
 126             printfile(fileid, verbose);
 127
 128     return 0;
 129 }