mysql plugin: fix implicit conversion warning

  CC       src/mysql_la-mysql.lo
src/mysql.c:366:19: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
  int query_len = strlen(query);
      ~~~~~~~~~   ^~~~~~~~~~~~~
1 warning generated.

diff --git a/src/mysql.c b/src/mysql.c
index 40707be..e7ffb48 100644 (file)
--- a/src/mysql.c
+++ b/src/mysql.c
@@ -363,7 +363,7 @@ static void traffic_submit(derive_t rx, derive_t tx, mysql_database_t *db) {
 static MYSQL_RES *exec_query(MYSQL *con, const char *query) {
   MYSQL_RES *res;
 
-  int query_len = strlen(query);
+  size_t query_len = strlen(query);
 
   if (mysql_real_query(con, query, query_len)) {
     ERROR("mysql plugin: Failed to execute query: %s", mysql_error(con));