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 printfile(int fileid, int verbose) 54 { 55 struct kld_file_stat stat; 56 int modid; 57 58 stat.version = sizeof(struct kld_file_stat); 59 if (kldstat(fileid, &stat) < 0) 60 warn("can't stat file id %d", fileid); 61 else 62 printf("%2d %4d %p %-8zx %s", 63 stat.id, stat.refs, stat.address, stat.size, 64 stat.name); 65 66 if (verbose) { 67 printf(" (%s)\n", stat.pathname); 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 } else 74 printf("\n"); 75 } 76 77 static void 78 usage(void) 79 { 80 fprintf(stderr, "usage: kldstat [-v] [-i id] [-n filename]\n"); 81 fprintf(stderr, " kldstat [-q] [-m modname]\n"); 82 exit(1); 83 } 84 85 int 86 main(int argc, char** argv) 87 { 88 int c; 89 int verbose = 0; 90 int fileid = 0; 91 int quiet = 0; 92 char* filename = NULL; 93 char* modname = NULL; 94 char* p; 95 96 while ((c = getopt(argc, argv, "i:m:n:qv")) != -1) 97 switch (c) { 98 case 'i': 99 fileid = (int)strtoul(optarg, &p, 10); 100 if (*p != '\0') 101 usage(); 102 break; 103 case 'm': 104 modname = optarg; 105 break; 106 case 'n': 107 filename = optarg; 108 break; 109 case 'q': 110 quiet = 1; 111 break; 112 case 'v': 113 verbose = 1; 114 break; 115 default: 116 usage(); 117 } 118 argc -= optind; 119 argv += optind; 120 121 if (argc != 0) 122 usage(); 123 124 if (modname != NULL) { 125 int modid; 126 struct module_stat stat; 127 128 if ((modid = modfind(modname)) < 0) { 129 if (!quiet) 130 warn("can't find module %s", modname); 131 return 1; 132 } else if (quiet) { 133 return 0; 134 } 135 136 stat.version = sizeof(struct module_stat); 137 if (modstat(modid, &stat) < 0) 138 warn("can't stat module id %d", modid); 139 else { 140 printf("Id Refs Name\n"); 141 printf("%3d %4d %s\n", stat.id, stat.refs, stat.name); 142 } 143 144 return 0; 145 } 146 147 if (filename != NULL) { 148 if ((fileid = kldfind(filename)) < 0) 149 err(1, "can't find file %s", filename); 150 } 151 152 printf("Id Refs Address%*c Size Name\n", POINTER_WIDTH - 7, ' '); 153 if (fileid != 0) 154 printfile(fileid, verbose); 155 else 156 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) 157 printfile(fileid, verbose); 158 159 return 0; 160 } 161