fixed magic vars for symlinks

core/utils.c

@@ -1822,6 +1822,17 @@ int uwsgi_is_dir(char *filename) {
 	return 0;
 }
 
+int uwsgi_is_link(char *filename) {
+        struct stat st;
+        if (lstat(filename, &st)) {
+                return 0;
+        }
+        if (S_ISLNK(st.st_mode))
+                return 1;
+        return 0;
+}
+
+
 int uwsgi_logic_opt_if_opt(char *key, char *value) {
 
         // check for env-value syntax

core/uwsgi.c

@@ -669,18 +669,27 @@ restart:
 void config_magic_table_fill(char *filename, char **magic_table) {
 
 	char *tmp = NULL;
+	char *fullname = filename;
 
-	char *fullname = uwsgi_expand_path(filename, strlen(filename), NULL);
-	if (!fullname) {
-		fullname = filename;
+	// we have a special case for symlinks
+	if (uwsgi_is_link(filename)) {
+		if (filename[0] != '/') {
+			fullname = uwsgi_concat3(uwsgi.cwd, "/", filename);
+		}
 	}
-	// free unused memory
 	else {
-		char *minimal_name = uwsgi_malloc(strlen(fullname) + 1);
-		memcpy(minimal_name, fullname, strlen(fullname));
-		minimal_name[strlen(fullname)] = 0;
-		free(fullname);
-		fullname = minimal_name;
+
+		fullname = uwsgi_expand_path(filename, strlen(filename), NULL);
+		if (fullname) {
+			char *minimal_name = uwsgi_malloc(strlen(fullname) + 1);
+			memcpy(minimal_name, fullname, strlen(fullname));
+			minimal_name[strlen(fullname)] = 0;
+			free(fullname);
+			fullname = minimal_name;
+		}
+		else {
+			fullname = filename;
+		}
 	}
 
 	magic_table['o'] = filename;

uwsgi.h

@@ -3139,6 +3139,7 @@ int uwsgi_try_autoload(char *);
 
 uint64_t uwsgi_micros(void);
 int uwsgi_is_file(char *);
+int uwsgi_is_link(char *);
 
 void uwsgi_receive_signal(int, char *, int);
 void uwsgi_exec_atexit(void);