kldstat.c revision 146465
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 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sbin/kldstat/kldstat.c 146465 2005-05-21 07:08:32Z ru $"); 29 30#include <err.h> 31#include <stdint.h> 32#include <stdio.h> 33#include <stdlib.h> 34#include <unistd.h> 35#include <sys/types.h> 36#include <sys/param.h> 37#include <sys/module.h> 38#include <sys/linker.h> 39 40#define POINTER_WIDTH ((int)(sizeof(void *) * 2 + 2)) 41 42static void 43printmod(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 54static void printfile(int fileid, int verbose) 55{ 56 struct kld_file_stat stat; 57 int modid; 58 59 stat.version = sizeof(struct kld_file_stat); 60 if (kldstat(fileid, &stat) < 0) 61 warn("can't stat file id %d", fileid); 62 else 63 printf("%2d %4d %p %-8jx %s\n", 64 stat.id, stat.refs, stat.address, (uintmax_t)stat.size, 65 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 76static void 77usage(void) 78{ 79 fprintf(stderr, "usage: kldstat [-v] [-i id] [-n filename]\n"); 80 fprintf(stderr, " kldstat [-m modname]\n"); 81 exit(1); 82} 83 84int 85main(int argc, char** argv) 86{ 87 int c; 88 int verbose = 0; 89 int fileid = 0; 90 char* filename = NULL; 91 char* modname = NULL; 92 char* p; 93 94 while ((c = getopt(argc, argv, "i:m:n:v")) != -1) 95 switch (c) { 96 case 'i': 97 fileid = (int)strtoul(optarg, &p, 10); 98 if (*p != '\0') 99 usage(); 100 break; 101 case 'm': 102 modname = optarg; 103 break; 104 case 'n': 105 filename = optarg; 106 break; 107 case 'v': 108 verbose = 1; 109 break; 110 default: 111 usage(); 112 } 113 argc -= optind; 114 argv += optind; 115 116 if (argc != 0) 117 usage(); 118 119 if (modname != NULL) { 120 int modid; 121 struct module_stat stat; 122 123 if ((modid = modfind(modname)) < 0) 124 err(1, "can't find module %s", modname); 125 126 stat.version = sizeof(struct module_stat); 127 if (modstat(modid, &stat) < 0) 128 warn("can't stat module id %d", modid); 129 else { 130 printf("Id Refs Name\n"); 131 printf("%3d %4d %s\n", stat.id, stat.refs, stat.name); 132 } 133 134 return 0; 135 } 136 137 if (filename != NULL) { 138 if ((fileid = kldfind(filename)) < 0) 139 err(1, "can't find file %s", filename); 140 } 141 142 printf("Id Refs Address%*c Size Name\n", POINTER_WIDTH - 7, ' '); 143 if (fileid != 0) 144 printfile(fileid, verbose); 145 else 146 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) 147 printfile(fileid, verbose); 148 149 return 0; 150} 151