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/*-
* Copyright (c) 2006 Dag-Erling Coïdan Smørgrav
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/linker.h>
#include <sys/module.h>
#include <errno.h>
#include <libutil.h>
#include <string.h>
int
kld_isloaded(const char *name)
{
struct kld_file_stat fstat;
struct module_stat mstat;
const char *ko;
int fid, mid;
for (fid = kldnext(0); fid > 0; fid = kldnext(fid)) {
fstat.version = sizeof(fstat);
if (kldstat(fid, &fstat) != 0)
continue;
/* check if the file name matches the supplied name */
if (strcmp(fstat.name, name) == 0)
return (1);
/* strip .ko and try again */
if ((ko = strstr(fstat.name, ".ko")) != NULL &&
strlen(name) == (size_t)(ko - fstat.name) &&
strncmp(fstat.name, name, ko - fstat.name) == 0)
return (1);
/* look for a matching module within the file */
for (mid = kldfirstmod(fid); mid > 0; mid = modfnext(mid)) {
mstat.version = sizeof(mstat);
if (modstat(mid, &mstat) != 0)
continue;
if (strcmp(mstat.name, name) == 0)
return (1);
}
}
return (0);
}
int
kld_load(const char *name)
{
if (kldload(name) == -1 && errno != EEXIST)
return (-1);
return (0);
}
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