ldif_fetch_url() would return NULL value or pointless memory if file was empty

diff --git a/libraries/libldif/fetch.c b/libraries/libldif/fetch.c
index a9b0cafa9528baf08bcb4eed1dcf1b7e281b32ff..545253e80830ae7da55b881b1117850f847c982b 100644 (file)
--- a/libraries/libldif/fetch.c
+++ b/libraries/libldif/fetch.c
@@ -87,6 +87,15 @@ ldif_fetch_url(
 
        fclose( url );
 
+       if( total == 0 ) {
+               char *newp = ber_memrealloc( p, 1 );
+               if( newp == NULL ) {
+                       ber_memfree( p );
+                       return -1;
+               }
+               p = newp;
+       }
+
        *valuep = p;
        *vlenp = total;