+static int merge_env_file_push(
+ const char *filename, unsigned line,
+ const char *key, char *value,
+ void *userdata,
+ int *n_pushed) {
+
+ char ***env = userdata;
+ char *expanded_value;
+
+ assert(env);
+
+ if (!value) {
+ log_error("%s:%u: invalid syntax (around \"%s\"), ignoring.", strna(filename), line, key);
+ return 0;
+ }
+
+ if (!env_name_is_valid(key)) {
+ log_error("%s:%u: invalid variable name \"%s\", ignoring.", strna(filename), line, key);
+ free(value);
+ return 0;
+ }
+
+ expanded_value = replace_env(value, *env,
+ REPLACE_ENV_USE_ENVIRONMENT|REPLACE_ENV_ALLOW_BRACELESS);
+ if (!expanded_value)
+ return -ENOMEM;
+
+ free_and_replace(value, expanded_value);
+
+ return load_env_file_push(filename, line, key, value, env, n_pushed);
+}
+
+int merge_env_file(
+ char ***env,
+ FILE *f,
+ const char *fname) {
+
+ /* NOTE: this function supports braceful and braceless variable expansions,
+ * unlike other exported parsing functions.
+ */
+
+ return parse_env_file_internal(f, fname, NEWLINE, merge_env_file_push, env, NULL);
+}
+