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("$FreeBSD$"); 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 39 #define POINTER_WIDTH ((int)(sizeof(void *) * 2 + 2)) 40 41 static void 42 printmod(int modid) 43 { 44 struct module_stat stat; 45 46 stat.version = sizeof(struct module_stat); 47 if (modstat(modid, &stat) < 0) 48 warn("can't stat module id %d", modid); 49 else 50 printf("\t\t%2d %s\n", stat.id, stat.name); 51 } 52 53 static void 54 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 err(1, "can't stat file id %d", fileid); 62 else 63 printf("%2d %4d %p %-8zx %s", 64 stat.id, stat.refs, stat.address, stat.size, 65 stat.name); 66 67 if (verbose) { 68 printf(" (%s)\n", stat.pathname); 69 printf("\tContains modules:\n"); 70 printf("\t\tId Name\n"); 71 for (modid = kldfirstmod(fileid); modid > 0; 72 modid = modfnext(modid)) 73 printmod(modid); 74 } else 75 printf("\n"); 76 } 77 78 static void 79 usage(void) 80 { 81 fprintf(stderr, "usage: kldstat [-q] [-v] [-i id] [-n filename]\n"); 82 fprintf(stderr, " kldstat [-q] [-m modname]\n"); 83 exit(1); 84 } 85 86 int 87 main(int argc, char** argv) 88 { 89 int c; 90 int verbose = 0; 91 int fileid = 0; 92 int quiet = 0; 93 char* filename = NULL; 94 char* modname = NULL; 95 char* p; 96 97 while ((c = getopt(argc, argv, "i:m:n:qv")) != -1) 98 switch (c) { 99 case 'i': 100 fileid = (int)strtoul(optarg, &p, 10); 101 if (*p != '\0') 102 usage(); 103 break; 104 case 'm': 105 modname = optarg; 106 break; 107 case 'n': 108 filename = optarg; 109 break; 110 case 'q': 111 quiet = 1; 112 break; 113 case 'v': 114 verbose = 1; 115 break; 116 default: 117 usage(); 118 } 119 argc -= optind; 120 argv += optind; 121 122 if (argc != 0) 123 usage(); 124 125 if (modname != NULL) { 126 int modid; 127 struct module_stat stat; 128 129 if ((modid = modfind(modname)) < 0) { 130 if (!quiet) 131 warn("can't find module %s", modname); 132 return 1; 133 } else if (quiet) { 134 return 0; 135 } 136 137 stat.version = sizeof(struct module_stat); 138 if (modstat(modid, &stat) < 0) 139 warn("can't stat module id %d", modid); 140 else { 141 printf("Id Refs Name\n"); 142 printf("%3d %4d %s\n", stat.id, stat.refs, stat.name); 143 } 144 145 return 0; 146 } 147 148 if (filename != NULL) { 149 if ((fileid = kldfind(filename)) < 0) { 150 if (!quiet) 151 warn("can't find file %s", filename); 152 return 1; 153 } else if (quiet) { 154 return 0; 155 } 156 } 157 158 printf("Id Refs Address%*c Size Name\n", POINTER_WIDTH - 7, ' '); 159 if (fileid != 0) 160 printfile(fileid, verbose); 161 else 162 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) 163 printfile(fileid, verbose); 164 165 return 0; 166 } 167