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/*
Copyright (c) 2011 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS 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; either version 3 of the License,
or (at your option) any later version.
GlusterFS 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, see
<http://www.gnu.org/licenses/>.
*/
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include "common-utils.h"
#include "run.h"
#define _GLUSTERD_CALLED_ "_GLUSTERD_CALLED_"
#define GSYNCD_CONF "geo-replication/gsyncd.conf"
static int
config_wanted (int argc, char **argv)
{
char *evas = NULL;
char *oa = NULL;
int i = 0;
int one_more_arg = 0;
evas = getenv (_GLUSTERD_CALLED_);
if (evas && strcmp (evas, "1") == 0) {
/* OK, we know glusterd called us, no need to look for further config
* ... altough this conclusion should not inherit to our children
*/
unsetenv (_GLUSTERD_CALLED_);
return 0;
}
for (i = 1; i < argc; i++) {
/* -c found, see if it has an argument */
if (one_more_arg) {
if (argv[i][0] != '-')
return 0;
one_more_arg = 0;
}
if ((strcmp (argv[i], "-c") && strcmp (argv[i], "--config-file")) == 0) {
one_more_arg = 1;
continue;
}
oa = strtail (argv[i], "-c");
if (oa && !*oa)
oa = NULL;
if (!oa)
oa = strtail (argv[i], "--config-file=");
if (oa)
return 0;
}
return 1;
}
int
main(int argc, char **argv)
{
char config_file[PATH_MAX] = {0,};
size_t gluster_workdir_len = 0;
runner_t runner = {0,};
int i = 0;
int j = 0;
char *nargv[argc + 4];
if (config_wanted (argc, argv)) {
runinit (&runner);
runner_add_args (&runner, SBIN_DIR"/gluster",
"--log-file=/dev/stderr", "system::", "getwd",
NULL);
runner_redir (&runner, STDOUT_FILENO, RUN_PIPE);
if (runner_start (&runner) == 0 &&
fgets (config_file, PATH_MAX,
runner_chio (&runner, STDOUT_FILENO)) != NULL &&
config_file[strlen (config_file) - 1] == '\n' &&
runner_end (&runner) == 0)
gluster_workdir_len = strlen (config_file) - 1;
if (gluster_workdir_len) {
if (gluster_workdir_len + 1 + strlen (GSYNCD_CONF) + 1 >
PATH_MAX)
goto error;
config_file[gluster_workdir_len] = '/';
strcat (config_file, GSYNCD_CONF);
} else
config_file[0] = '\0';
}
j = 0;
nargv[j++] = PYTHON;
nargv[j++] = GSYNCD_PREFIX"/python/syncdaemon/gsyncd.py";
if (config_file[0]) {
nargv[j++] = "-c";
nargv[j++] = config_file;
}
for (i = 1; i < argc; i++)
nargv[j++] = argv[i];
nargv[j++] = NULL;
execvp (PYTHON, nargv);
fprintf (stderr, "exec of "PYTHON" failed\n");
return 127;
error:
fprintf (stderr, "gsyncd initializaion failed\n");
return 1;
}
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