[PATCH v2 1/1] wrc: Avoid undefined behavior in the FreeBSD case

[Gerald Pfeifer]

From: Gerald Pfeifer

init_argv0_dir has a special case for FreeBSD where one branch led to
an unitialized variable and undefined behavior. Initialize properly.
---
 tools/wrc/wrc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/wrc/wrc.c b/tools/wrc/wrc.c
index a1e59c3d2b3..9f231603ad4 100644
--- a/tools/wrc/wrc.c
+++ b/tools/wrc/wrc.c
@@ -305,6 +305,8 @@ static void init_argv0_dir( const char *argv0 )
     char *path = xmalloc( path_size );
     if (!sysctl( pathname, ARRAY_SIZE(pathname), path, &path_size, NULL, 0 ))
         dir = realpath( path, NULL );
+    else
+        dir = NULL;
     free( path );
 #else
     dir = realpath( argv0, NULL );