fix virtual-root if script-name is ""

In d0cb841 (Avoid trailing slash in virtual-root), virtual-root was set
from script-name using trim_end().  However, if script-name was the
empty string (""), which happens when cgit is used to serve the root
path on a domain (/), trim_end() returns NULL and cgit acts like
virtual-root is not available.  Now, set virtual-root to "" in this
case, which fixes this bug.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

diff --git a/cgit.c b/cgit.c
index e302a7c8c387cf096a4f387792c41223cc048b01..e498030b4dd7d83043cadb1a57ce12000b949755 100644 (file)
--- a/cgit.c
+++ b/cgit.c
@@ -757,8 +757,11 @@ int main(int argc, const char **argv)
         * that virtual-root equals SCRIPT_NAME, minus any possibly
         * trailing slashes.
         */
-       if (!ctx.cfg.virtual_root)
+       if (!ctx.cfg.virtual_root && ctx.cfg.script_name) {
                ctx.cfg.virtual_root = trim_end(ctx.cfg.script_name, '/');
+               if (!ctx.cfg.virtual_root)
+                       ctx.cfg.virtual_root = "";
+        }
 
        /* If no url parameter is specified on the querystring, lets
         * use PATH_INFO as url. This allows cgit to work with virtual