core: check that option_name is not NULL in config file functions

1 files changed, 9 insertions, 0 deletions

diff --git a/src/core/wee-config-file.c b/src/core/wee-config-file.c
index 941df4795..8bc734697 100644
--- a/src/core/wee-config-file.c
+++ b/src/core/wee-config-file.c
@@ -835,6 +835,9 @@ config_file_search_option (struct t_config_file *config_file,
     struct t_config_option *ptr_option;
     int rc;
 
+    if (!option_name)
+        return NULL;
+
     if (section)
     {
         for (ptr_option = section->last_option; ptr_option;
@@ -889,6 +892,9 @@ config_file_search_section_option (struct t_config_file *config_file,
     *section_found = NULL;
     *option_found = NULL;
 
+    if (!option_name)
+        return;
+
     if (section)
     {
         for (ptr_option = section->last_option; ptr_option;
@@ -953,6 +959,9 @@ config_file_search_with_string (const char *option_name,
     if (pos_option_name)
         *pos_option_name = NULL;
 
+    if (!option_name)
+        return;
+
     ptr_config = NULL;
     ptr_section = NULL;
     ptr_option = NULL;