kldstat.c revision 302800
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: stable/10/sbin/kldstat/kldstat.c 302800 2016-07-14 04:30:42Z julian $"); 29 30#include <err.h> 31#include <stdio.h> 32#include <stdlib.h> 33#include <unistd.h> 34#include <sys/types.h> 35#include <sys/param.h> 36#include <sys/module.h> 37#include <sys/linker.h> 38#include <strings.h> 39 40#define POINTER_WIDTH ((int)(sizeof(void *) * 2 + 2)) 41 42static int showdata = 0; 43 44static void 45printmod(int modid) 46{ 47 struct module_stat stat; 48 49 bzero(&stat, sizeof(stat)); 50 stat.version = sizeof(struct module_stat); 51 if (modstat(modid, &stat) < 0) 52 warn("can't stat module id %d", modid); 53 else 54 if (showdata) { 55 printf("\t\t%2d %s (%d, %u, 0x%lx)\n", stat.id, stat.name, 56 stat.data.intval, stat.data.uintval, stat.data.ulongval); 57 } else { 58 printf("\t\t%2d %s\n", stat.id, stat.name); 59 } 60} 61 62static void 63printfile(int fileid, int verbose) 64{ 65 struct kld_file_stat stat; 66 int modid; 67 68 stat.version = sizeof(struct kld_file_stat); 69 if (kldstat(fileid, &stat) < 0) 70 err(1, "can't stat file id %d", fileid); 71 else 72 printf("%2d %4d %p %-8zx %s", 73 stat.id, stat.refs, stat.address, stat.size, 74 stat.name); 75 76 if (verbose) { 77 printf(" (%s)\n", stat.pathname); 78 printf("\tContains modules:\n"); 79 printf("\t\tId Name\n"); 80 for (modid = kldfirstmod(fileid); modid > 0; 81 modid = modfnext(modid)) 82 printmod(modid); 83 } else 84 printf("\n"); 85} 86 87static void 88usage(void) 89{ 90 fprintf(stderr, "usage: kldstat [-d] [-q] [-v] [-i id] [-n filename]\n"); 91 fprintf(stderr, " kldstat [-d] [-q] [-m modname]\n"); 92 exit(1); 93} 94 95int 96main(int argc, char** argv) 97{ 98 int c; 99 int verbose = 0; 100 int fileid = 0; 101 int quiet = 0; 102 char* filename = NULL; 103 char* modname = NULL; 104 char* p; 105 106 while ((c = getopt(argc, argv, "di:m:n:qv")) != -1) 107 switch (c) { 108 case 'd': 109 showdata = 1; 110 break; 111 case 'i': 112 fileid = (int)strtoul(optarg, &p, 10); 113 if (*p != '\0') 114 usage(); 115 break; 116 case 'm': 117 modname = optarg; 118 break; 119 case 'n': 120 filename = optarg; 121 break; 122 case 'q': 123 quiet = 1; 124 break; 125 case 'v': 126 verbose = 1; 127 break; 128 default: 129 usage(); 130 } 131 argc -= optind; 132 argv += optind; 133 134 if (argc != 0) 135 usage(); 136 137 if (modname != NULL) { 138 int modid; 139 struct module_stat stat; 140 141 if ((modid = modfind(modname)) < 0) { 142 if (!quiet) 143 warn("can't find module %s", modname); 144 return 1; 145 } else if (quiet) { 146 return 0; 147 } 148 149 stat.version = sizeof(struct module_stat); 150 if (modstat(modid, &stat) < 0) 151 warn("can't stat module id %d", modid); 152 else { 153 if (showdata) { 154 printf("Id Refs Name data..(int, uint, ulong)\n"); 155 printf("%3d %4d %s (%d, %u, 0x%lx)\n", stat.id, stat.refs, stat.name, 156 stat.data.intval, stat.data.uintval, stat.data.ulongval); 157 } else { 158 printf("Id Refs Name\n"); 159 printf("%3d %4d %s\n", stat.id, stat.refs, stat.name); 160 } 161 } 162 163 return 0; 164 } 165 166 if (filename != NULL) { 167 if ((fileid = kldfind(filename)) < 0) { 168 if (!quiet) 169 warn("can't find file %s", filename); 170 return 1; 171 } else if (quiet) { 172 return 0; 173 } 174 } 175 176 printf("Id Refs Address%*c Size Name\n", POINTER_WIDTH - 7, ' '); 177 if (fileid != 0) 178 printfile(fileid, verbose); 179 else 180 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) 181 printfile(fileid, verbose); 182 183 return 0; 184} 185