131 lines
3.2 KiB
C
131 lines
3.2 KiB
C
/* $NetBSD: main.c,v 1.3 2008/04/28 20:23:09 martin Exp $ */
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/*-
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* Copyright (c) 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: main.c,v 1.3 2008/04/28 20:23:09 martin Exp $");
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#endif /* !lint */
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#include <sys/module.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <err.h>
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int main(int, char **);
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static void usage(void) __dead;
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static const char *classes[] = {
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"any",
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"misc",
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"vfs",
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"driver",
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"exec",
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};
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static const char *sources[] = {
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"kernel",
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"boot",
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"filesys",
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};
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int
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main(int argc, char **argv)
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{
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struct iovec iov;
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modstat_t *ms;
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size_t len;
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const char *name;
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char sbuf[32];
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int ch;
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name = NULL;
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while ((ch = getopt(argc, argv, "n:")) != -1) {
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switch (ch) {
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case 'n':
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name = optarg;
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break;
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default:
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usage();
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/* NOTREACHED */
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 0)
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usage();
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for (len = 4096;;) {
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iov.iov_base = malloc(len);
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iov.iov_len = len;
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if (modctl(MODCTL_STAT, &iov)) {
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err(EXIT_FAILURE, "modctl(MODCTL_STAT)");
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}
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if (len >= iov.iov_len) {
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break;
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}
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free(iov.iov_base);
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len = iov.iov_len;
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}
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printf("NAME\t\tCLASS\tSOURCE\tREFS\tSIZE\tREQUIRES\n");
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len = iov.iov_len / sizeof(modstat_t);
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for (ms = iov.iov_base; len != 0; ms++, len--) {
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if (name != NULL && strcmp(ms->ms_name, name) != 0) {
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continue;
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}
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if (ms->ms_required[0] == '\0') {
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ms->ms_required[0] = '-';
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ms->ms_required[1] = '\0';
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}
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if (ms->ms_size == 0) {
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sbuf[0] = '-';
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sbuf[1] = '\0';
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} else {
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snprintf(sbuf, sizeof(sbuf), "%u", ms->ms_size);
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}
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printf("%-16s%s\t%s\t%d\t%s\t%s\n",
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ms->ms_name, classes[ms->ms_class], sources[ms->ms_source],
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ms->ms_refcnt, sbuf, ms->ms_required);
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}
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exit(EXIT_SUCCESS);
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}
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static void
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usage(void)
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{
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(void)fprintf(stderr, "Usage: %s [-n name]", getprogname());
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exit(EXIT_FAILURE);
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}
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