fix memory leaks in config loader (bug #4223)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5879 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/config.c b/config.c
index ee4f18e..e2ccd13 100755 (executable)
--- a/config.c
+++ b/config.c
@@ -499,7 +499,7 @@ static int process_text_line(struct ast_config *cfg, struct ast_category **cat,
                                if(!ast_strlen_zero(exec_file))
                                        unlink(exec_file);
                                if(!do_include)
-                                       return -1;
+                                       return 0;
 
                        } else {
                                ast_log(LOG_WARNING, "Directive '#%s' needs an argument (%s) at line %d of %s\n", 
@@ -556,6 +556,7 @@ static struct ast_config *config_text_file_load(const char *database, const char
        int lineno=0;
        int comment = 0, nest[MAX_NESTED_COMMENTS];
        struct ast_category *cat = NULL;
+       int count = 0;
        
        cat = ast_config_get_current_category(cfg);
 
@@ -592,6 +593,7 @@ static struct ast_config *config_text_file_load(const char *database, const char
                fflush(stdout);
        }
        if ((f = fopen(fn, "r"))) {
+               count++;
                if (option_debug)
                        ast_log(LOG_DEBUG, "Parsing %s\n", fn);
                else if (option_verbose > 1)
@@ -674,6 +676,8 @@ static struct ast_config *config_text_file_load(const char *database, const char
                        }
                }
 #endif
+       if (count == 0)
+               return NULL;
 
        return cfg;
 }
@@ -793,17 +797,19 @@ static int append_mapping(char *name, char *driver, char *database, char *table)
 
 void read_config_maps(void) 
 {
-       struct ast_config *config;
+       struct ast_config *config, *configtmp;
        struct ast_variable *v;
        char *driver, *table, *database, *stringp;
 
        clear_config_maps();
 
-       config = ast_config_new();
-       config->max_include_level = 1;
-       config = ast_config_internal_load(extconfig_conf, config);
-       if (!config)
+       configtmp = ast_config_new();
+       configtmp->max_include_level = 1;
+       config = ast_config_internal_load(extconfig_conf, configtmp);
+       if (!config) {
+               ast_config_destroy(configtmp);
                return;
+       }
 
        for (v = ast_variable_browse(config, "settings"); v; v = v->next) {
                stringp = v->value;