8bd41f36f7
This cuts down our 600 rules file to 98 kb instead of 1.9 Mb memory or file-size with precompiled rules. Signed-off-by: Kay Sievers <kay.sievers@suse.de>
98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
/*
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* udevrulescompile.c - store already parsed config on disk
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*
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* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <stdlib.h>
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#include <stddef.h>
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include "udev_libc_wrapper.h"
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#include "udev_sysfs.h"
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#include "udev.h"
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#include "udev_version.h"
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#include "logging.h"
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#include "udev_rules.h"
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#include "udev_utils.h"
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#include "list.h"
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#ifdef USE_LOG
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void log_message(int priority, const char *format, ...)
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{
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va_list args;
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if (priority > udev_log_priority)
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return;
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va_start(args, format);
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vsyslog(priority, format, args);
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va_end(args);
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}
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#endif
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int main(int argc, char *argv[], char *envp[])
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{
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struct udev_rules rules;
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FILE *f;
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char comp[PATH_SIZE];
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char comp_tmp[PATH_SIZE];
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int retval = 0;
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logging_init("udevrulescompile");
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udev_init_config();
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dbg("version %s", UDEV_VERSION);
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strlcpy(comp, udev_rules_filename, sizeof(comp));
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strlcat(comp, ".compiled", sizeof(comp));
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strlcpy(comp_tmp, comp, sizeof(comp_tmp));
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strlcat(comp_tmp, ".tmp", sizeof(comp_tmp));
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/* remove old version, otherwise we would read it instead of the real rules */
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unlink(comp);
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unlink(comp_tmp);
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udev_rules_init(&rules, 1);
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f = fopen(comp_tmp, "w");
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if (f == NULL) {
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err("unable to create db file '%s'", comp_tmp);
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unlink(comp_tmp);
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retval = 1;
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goto exit;
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}
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dbg("storing compiled rules in '%s' size=%zi", comp_tmp, rules.bufsize);
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fwrite(rules.buf, rules.bufsize, 1, f);
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fclose(f);
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dbg("activating compiled rules in '%s'", comp);
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if (rename(comp_tmp, comp) != 0) {
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err("unable to write file");
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unlink(comp);
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unlink(comp_tmp);
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retval = 2;
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}
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exit:
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logging_close();
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return retval;
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}
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