1 /* $NetBSD: main.c,v 1.11 2010/12/13 20:48:45 pooka Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 #ifndef lint 31 __RCSID("$NetBSD: main.c,v 1.11 2010/12/13 20:48:45 pooka Exp $"); 32 #endif /* !lint */ 33 34 #include <sys/module.h> 35 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <string.h> 39 #include <unistd.h> 40 #include <err.h> 41 42 #include "prog_ops.h" 43 44 int main(int, char **); 45 static void usage(void) __dead; 46 static int modstatcmp(const void *, const void *); 47 48 static const char *classes[] = { 49 "any", 50 "misc", 51 "vfs", 52 "driver", 53 "exec", 54 "secmodel", 55 }; 56 const unsigned int class_max = __arraycount(classes); 57 58 static const char *sources[] = { 59 "builtin", 60 "boot", 61 "filesys", 62 }; 63 const unsigned int source_max = __arraycount(sources); 64 65 int 66 main(int argc, char **argv) 67 { 68 struct iovec iov; 69 modstat_t *ms; 70 size_t len; 71 const char *name; 72 char sbuf[32]; 73 int ch; 74 75 name = NULL; 76 77 while ((ch = getopt(argc, argv, "n:")) != -1) { 78 switch (ch) { 79 case 'n': 80 name = optarg; 81 break; 82 default: 83 usage(); 84 /* NOTREACHED */ 85 } 86 } 87 88 argc -= optind; 89 argv += optind; 90 if (argc != 0) 91 usage(); 92 93 if (prog_init && prog_init() == -1) 94 err(1, "prog init failed"); 95 96 for (len = 8192;;) { 97 iov.iov_base = malloc(len); 98 iov.iov_len = len; 99 if (prog_modctl(MODCTL_STAT, &iov)) { 100 err(EXIT_FAILURE, "modctl(MODCTL_STAT)"); 101 } 102 if (len >= iov.iov_len) { 103 break; 104 } 105 free(iov.iov_base); 106 len = iov.iov_len; 107 } 108 109 printf("%-16s %-10s %-10s %-5s %-8s %s\n", 110 "NAME", "CLASS", "SOURCE", "REFS", "SIZE", "REQUIRES"); 111 len = iov.iov_len / sizeof(modstat_t); 112 qsort(iov.iov_base, len, sizeof(modstat_t), modstatcmp); 113 for (ms = iov.iov_base; len != 0; ms++, len--) { 114 const char *class; 115 const char *source; 116 117 if (name != NULL && strcmp(ms->ms_name, name) != 0) { 118 continue; 119 } 120 if (ms->ms_required[0] == '\0') { 121 ms->ms_required[0] = '-'; 122 ms->ms_required[1] = '\0'; 123 } 124 if (ms->ms_size == 0) { 125 sbuf[0] = '-'; 126 sbuf[1] = '\0'; 127 } else { 128 snprintf(sbuf, sizeof(sbuf), "%u", ms->ms_size); 129 } 130 if (ms->ms_class <= class_max) 131 class = classes[ms->ms_class]; 132 else 133 class = "UNKNOWN"; 134 if (ms->ms_source < source_max) 135 source = sources[ms->ms_source]; 136 else 137 source = "UNKNOWN"; 138 139 printf("%-16s %-10s %-10s %-5d %-8s %s\n", 140 ms->ms_name, class, source, ms->ms_refcnt, sbuf, 141 ms->ms_required); 142 } 143 144 exit(EXIT_SUCCESS); 145 } 146 147 static void 148 usage(void) 149 { 150 151 (void)fprintf(stderr, "Usage: %s [-n name]\n", getprogname()); 152 exit(EXIT_FAILURE); 153 } 154 155 static int 156 modstatcmp(const void *a, const void *b) 157 { 158 const modstat_t *msa, *msb; 159 160 msa = a; 161 msb = b; 162 163 return strcmp(msa->ms_name, msb->ms_name); 164 } 165