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 1.20 2007/10/22 04:12:57 jb Exp $
  27  * $DragonFly: src/sbin/kldstat/kldstat.c,v 1.5 2008/01/08 15:27:57 matthias Exp $
  28  */
  29
  30 #include <sys/cdefs.h>
  31
  32 #include <err.h>
  33 #include <stdint.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <unistd.h>
  37 #include <sys/types.h>
  38 #include <sys/param.h>
  39 #include <sys/module.h>
  40 #include <sys/linker.h>
  41
  42 #define POINTER_WIDTH   ((int)(sizeof(void *) * 2 + 2))
  43
  44 static void
  45 printmod(int modid)
  46 {
  47     struct module_stat stat;
  48
  49     stat.version = sizeof(struct module_stat);
  50     if (modstat(modid, &stat) < 0)
  51         warn("can't stat module id %d", modid);
  52     else
  53         printf("\t\t%2d %s\n", stat.id, stat.name);
  54 }
  55
  56 static void
  57 printfile(int fileid, int verbose)
  58 {
  59     struct kld_file_stat stat;
  60     int modid;
  61
  62     stat.version = sizeof(struct kld_file_stat);
  63     if (kldstat(fileid, &stat) < 0)
  64         warn("can't stat file id %d", fileid);
  65     else
  66         printf("%2d %4d %p %-8jx %s\n",
  67                stat.id, stat.refs, stat.address, (uintmax_t)stat.size,
  68                stat.name);
  69
  70     if (verbose) {
  71         printf("\tContains modules:\n");
  72         printf("\t\tId Name\n");
  73         for (modid = kldfirstmod(fileid); modid > 0;
  74              modid = modfnext(modid))
  75             printmod(modid);
  76     }
  77 }
  78
  79 static void
  80 usage(void)
  81 {
  82     fprintf(stderr, "usage: kldstat [-v] [-i id] [-n filename]\n");
  83     fprintf(stderr, "       kldstat [-q] [-m modname]\n");
  84     exit(1);
  85 }
  86
  87 int
  88 main(int argc, char** argv)
  89 {
  90     int c;
  91     int verbose = 0;
  92     int fileid = 0;
  93     int quiet = 0;
  94     char* filename = NULL;
  95     char* modname = NULL;
  96     char* p;
  97
  98     while ((c = getopt(argc, argv, "i:m:n:qv")) != -1)
  99         switch (c) {
 100         case 'i':
 101             fileid = (int)strtoul(optarg, &p, 10);
 102             if (*p != '\0')
 103                 usage();
 104             break;
 105         case 'm':
 106             modname = optarg;
 107             break;
 108         case 'n':
 109             filename = optarg;
 110             break;
 111         case 'q':
 112             quiet = 1;
 113             break;
 114         case 'v':
 115             verbose = 1;
 116             break;
 117         default:
 118             usage();
 119         }
 120     argc -= optind;
 121     argv += optind;
 122
 123     if (argc != 0)
 124         usage();
 125
 126     if (modname != NULL) {
 127         int modid;
 128         struct module_stat stat;
 129
 130         if ((modid = modfind(modname)) < 0) {
 131             if (!quiet)
 132                 warn("can't find module %s", modname);
 133             return 1;
 134         } else if (quiet) {
 135             return 0;
 136         }
 137
 138         stat.version = sizeof(struct module_stat);
 139         if (modstat(modid, &stat) < 0)
 140             warn("can't stat module id %d", modid);
 141         else {
 142             printf("Id  Refs Name\n");
 143             printf("%3d %4d %s\n", stat.id, stat.refs, stat.name);
 144         }
 145
 146         return 0;
 147     }
 148
 149     if (filename != NULL) {
 150         if ((fileid = kldfind(filename)) < 0)
 151             err(1, "can't find file %s", filename);
 152     }
 153
 154     printf("Id Refs Address%*c Size     Name\n", POINTER_WIDTH - 7, ' ');
 155     if (fileid != 0)
 156         printfile(fileid, verbose);
 157     else
 158         for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
 159             printfile(fileid, verbose);
 160
 161     return 0;
 162 }