changed to use php_memnistr

Author: SakiTakamachi

ext/odbc/php_odbc.c

@@ -2096,21 +2096,8 @@ int odbc_sqlconnect(odbc_connection **conn, char *db, char *uid, char *pwd, int
 		if (strstr((char*)db, "=")) {
 			direct = 1;
 
-			/* There are many character comparison patterns, so convert them to lower case. */
-			size_t db_len = strlen(db);
-			char *lower_db = (char*) emalloc(db_len);
-			strcpy(lower_db, db);
-
-			unsigned char *c = (unsigned char *) lower_db;
-			const unsigned char *e = c + db_len;
-			while (c < e) {
-				*c = tolower(*c);
-				c++;
-			}
-
-			bool use_uid_arg = !strstr(lower_db, "uid=");
-			bool use_pwd_arg = !strstr(lower_db, "pwd=");
-			efree(lower_db);
+			bool use_uid_arg = !php_memnistr(db, "uid=", strlen("uid="), db + strlen(db));
+			bool use_pwd_arg = !php_memnistr(db, "pwd=", strlen("pwd="), db + strlen(db));
 
 			/* Force UID and PWD to be set in the DSN */
 			if (use_uid_arg || use_pwd_arg) {