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/*
* udevrulescompile.c - store already parsed config on disk
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include "udev_libc_wrapper.h"
#include "udev_sysfs.h"
#include "udev.h"
#include "udev_version.h"
#include "logging.h"
#include "udev_rules.h"
#include "udev_utils.h"
#include "list.h"
#ifdef USE_LOG
void log_message(int priority, const char *format, ...)
{
va_list args;
if (priority > udev_log_priority)
return;
va_start(args, format);
vsyslog(priority, format, args);
va_end(args);
}
#endif
int main(int argc, char *argv[], char *envp[])
{
struct udev_rule *rule;
FILE *f;
char comp[PATH_SIZE];
char comp_tmp[PATH_SIZE];
int retval = 0;
logging_init("udevrulescompile");
udev_init_config();
dbg("version %s", UDEV_VERSION);
strlcpy(comp, udev_rules_filename, sizeof(comp));
strlcat(comp, ".compiled", sizeof(comp));
strlcpy(comp_tmp, comp, sizeof(comp_tmp));
strlcat(comp_tmp, ".tmp", sizeof(comp_tmp));
/* remove old version, otherwise we would read it
* instead of the real rules */
unlink(comp);
unlink(comp_tmp);
udev_rules_init();
f = fopen(comp_tmp, "w");
if (f == NULL) {
err("unable to create db file '%s'", comp_tmp);
unlink(comp_tmp);
retval = 1;
goto exit;
}
dbg("storing compiled rules in '%s'", comp_tmp);
udev_rules_iter_init();
while (1) {
char *endptr;
unsigned long id;
rule = udev_rules_iter_next();
if (rule == NULL)
break;
id = strtoul(rule->owner, &endptr, 10);
if (endptr[0] != '\0') {
uid_t uid;
uid = lookup_user(rule->owner);
dbg("replacing username='%s' by id=%i", rule->owner, uid);
sprintf(rule->owner, "%li", uid);
}
id = strtoul(rule->group, &endptr, 10);
if (endptr[0] != '\0') {
gid_t gid;
gid = lookup_group(rule->group);
dbg("replacing groupname='%s' by id=%i", rule->group, gid);
sprintf(rule->group, "%li", gid);
}
dbg("kernel_name='%s' name='%s'", rule->kernel_name, rule->name);
fwrite(rule, sizeof(struct udev_rule), 1, f);
}
fclose(f);
dbg("activating compiled rules in '%s'", comp);
if (rename(comp_tmp, comp) != 0) {
err("unable to write file");
unlink(comp);
unlink(comp_tmp);
retval = 2;
}
exit:
logging_close();
return retval;
}
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