Free additionally allocated `sp_list` instances

References #43.

3 files changed, 25 insertions, 3 deletions

diff --git a/src/snuffleupagus.c b/src/snuffleupagus.c
index 2cc31d8..7db6c93 100644
--- a/src/snuffleupagus.c
+++ b/src/snuffleupagus.c
@@ -3,6 +3,7 @@
 #endif
 
 #include "php_snuffleupagus.h"
+#include "sp_config.h"
 
 #ifndef ZEND_EXT_API
 #define ZEND_EXT_API ZEND_DLEXPORT
@@ -118,11 +119,20 @@ PHP_MSHUTDOWN_FUNCTION(snuffleupagus) {
   pefree(SNUFFLEUPAGUS_G(config.config_upload_validation), 1);
   pefree(SNUFFLEUPAGUS_G(config.config_cookie_encryption), 1);
 
-  sp_list_free(SNUFFLEUPAGUS_G(config.config_disabled_functions->disabled_functions));
+  sp_node_t* disabled_functions = SNUFFLEUPAGUS_G(config.config_disabled_functions->disabled_functions);
+  sp_node_t* disabled_functions_ret = SNUFFLEUPAGUS_G(config.config_disabled_functions_ret->disabled_functions);
+  sp_node_t* disabled_constructs = SNUFFLEUPAGUS_G(config.config_disabled_constructs->construct_include);
+
+  // Free the list of disabled functions for each `sp_disabled_function` instance
+  sp_disabled_function_list_free(disabled_functions);
+  sp_disabled_function_list_free(disabled_functions_ret);
+  sp_disabled_function_list_free(disabled_constructs);
+
+  sp_list_free(disabled_functions);
   pefree(SNUFFLEUPAGUS_G(config.config_disabled_functions), 1);
-  sp_list_free(SNUFFLEUPAGUS_G(config.config_disabled_functions_ret->disabled_functions));
+  sp_list_free(disabled_functions_ret);
   pefree(SNUFFLEUPAGUS_G(config.config_disabled_functions_ret), 1);
-  sp_list_free(SNUFFLEUPAGUS_G(config.config_disabled_constructs->construct_include));
+  sp_list_free(disabled_constructs);
   pefree(SNUFFLEUPAGUS_G(config.config_disabled_constructs), 1);
 
   UNREGISTER_INI_ENTRIES();
diff --git a/src/sp_config.c b/src/sp_config.c
index c41b8f7..13002cc 100644
--- a/src/sp_config.c
+++ b/src/sp_config.c
@@ -182,3 +182,13 @@ int sp_parse_config(const char *conf_file) {
   fclose(fd);
   return SUCCESS;
 }
+
+void sp_disabled_function_list_free(sp_node_t* list) {
+  sp_node_t* cursor = list;
+  while(cursor) {
+      sp_disabled_function* df = cursor->data;
+      if (df && df->functions_list)
+          sp_list_free(df->functions_list);
+      cursor = cursor->next;
+  }
+}
diff --git a/src/sp_config.h b/src/sp_config.h
index eda7517..ac33eb5 100644
--- a/src/sp_config.h
+++ b/src/sp_config.h
@@ -206,5 +206,7 @@ int parse_empty(char *restrict, char *restrict, void *);
 int parse_cidr(char *restrict, char *restrict, void *);
 int parse_php_type(char *restrict, char *restrict, void *);
 
+// cleanup
+void sp_disabled_function_list_free(sp_node_t*);
 
 #endif /* SP_CONFIG_H */