kldstat.c revision 129820
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 129820 2004-05-28 21:16:44Z dwmalone $"); 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 (sizeof(void *) > 4 ? 18 : 10) 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 name]\n"); 80 exit(1); 81} 82 83int 84main(int argc, char** argv) 85{ 86 int c; 87 int verbose = 0; 88 int fileid = 0; 89 char* filename = NULL; 90 char* p; 91 92 while ((c = getopt(argc, argv, "i:n:v")) != -1) 93 switch (c) { 94 case 'i': 95 fileid = (int)strtoul(optarg, &p, 10); 96 if (*p != '\0') 97 usage(); 98 break; 99 case 'n': 100 filename = optarg; 101 break; 102 case 'v': 103 verbose = 1; 104 break; 105 default: 106 usage(); 107 } 108 argc -= optind; 109 argv += optind; 110 111 if (argc != 0) 112 usage(); 113 114 if (filename != NULL) { 115 if ((fileid = kldfind(filename)) < 0) 116 err(1, "can't find file %s", filename); 117 } 118 119 printf("Id Refs Address%*c Size Name\n", POINTER_WIDTH - 7, ' '); 120 if (fileid != 0) 121 printfile(fileid, verbose); 122 else 123 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) 124 printfile(fileid, verbose); 125 126 return 0; 127} 128