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/*
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, either version 3 of the License, or
(at your option) any later version.
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, see <http://www.gnu.org/licenses/>.
Authors: Andrew Hutchings, SkySQL (andrew at skysql dot com)
*/
#define PCRE2_CODE_UNIT_WIDTH 8
#include <pcre2.h>
#include <glib.h>
#include <string.h>
#include "server_detect.h"
int detect_server(MYSQL *conn) {
pcre2_code *re = NULL;
pcre2_match_data *md;
PCRE2_UCHAR error[120];
PCRE2_SIZE erroroffset;
int err;
int rc;
const char *db_version = mysql_get_server_info(conn);
// debug the version
g_message("Server version reported as: %s", db_version);
re = pcre2_compile((PCRE2_SPTR)DETECT_TIDB_REGEX, PCRE2_ZERO_TERMINATED,
0, &err, &erroroffset, NULL);
if (!re) {
pcre2_get_error_message(err, error, sizeof(error));
g_critical("Regular expression fail: %s", error);
exit(EXIT_FAILURE);
}
md = pcre2_match_data_create(9, NULL);
rc = pcre2_match(re, (PCRE2_SPTR)db_version, strlen(db_version),
0, 0, md, NULL);
pcre2_code_free(re);
if (rc > 0) {
pcre2_match_data_free(md);
return SERVER_TYPE_TIDB;
}
re = pcre2_compile((PCRE2_SPTR)DETECT_MYSQL_REGEX, PCRE2_ZERO_TERMINATED,
0, &err, &erroroffset, NULL);
if (!re) {
pcre2_get_error_message(err, error, sizeof(error));
g_critical("Regular expression fail: %s", error);
pcre2_match_data_free(md);
exit(EXIT_FAILURE);
}
rc = pcre2_match(re, (PCRE2_SPTR)db_version, strlen(db_version),
0, 0, md, NULL);
pcre2_code_free(re);
if (rc > 0) {
pcre2_match_data_free(md);
return SERVER_TYPE_MYSQL;
}
re = pcre2_compile((PCRE2_SPTR)DETECT_DRIZZLE_REGEX, PCRE2_ZERO_TERMINATED,
0, &err, &erroroffset, NULL);
if (!re) {
pcre2_get_error_message(err, error, sizeof(error));
g_critical("Regular expression fail: %s", error);
pcre2_match_data_free(md);
exit(EXIT_FAILURE);
}
rc = pcre2_match(re, (PCRE2_SPTR)db_version, strlen(db_version),
0, 0, md, NULL);
pcre2_code_free(re);
if (rc > 0) {
pcre2_match_data_free(md);
return SERVER_TYPE_DRIZZLE;
}
re = pcre2_compile((PCRE2_SPTR)DETECT_MARIADB_REGEX, PCRE2_ZERO_TERMINATED,
0, &err, &erroroffset, NULL);
if (!re) {
pcre2_get_error_message(err, error, sizeof(error));
g_critical("Regular expression fail: %s", error);
pcre2_match_data_free(md);
exit(EXIT_FAILURE);
}
rc = pcre2_match(re, (PCRE2_SPTR)db_version, strlen(db_version),
0, 0, md, NULL);
pcre2_code_free(re);
if (rc > 0) {
pcre2_match_data_free(md);
return SERVER_TYPE_MYSQL;
}
pcre2_match_data_free(md);
return SERVER_TYPE_UNKNOWN;
}
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