libglusterfsclient: handle paths terminating with '/' properly in libgf_trim_to_prev_dir.

Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 236 (Stack overflow due to infinite recursion in glusterfs_glh_realpath)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=236

1 files changed, 7 insertions, 1 deletions

diff --git a/libglusterfsclient/src/libglusterfsclient.c b/libglusterfsclient/src/libglusterfsclient.c
index 02328388d..e2c2f10b8 100755
--- a/libglusterfsclient/src/libglusterfsclient.c
+++ b/libglusterfsclient/src/libglusterfsclient.c
@@ -709,6 +709,7 @@ char *
 libgf_trim_to_prev_dir (char * path)
 {
         char    *idx = NULL;
+        int      len = 0;
 
         if (!path)
                 return NULL;
@@ -716,9 +717,14 @@ libgf_trim_to_prev_dir (char * path)
         /* Check if we're already at root, if yes
          * then there is no prev dir.
          */
-        if (strlen (path) == 1)
+        len = strlen (path);
+        if (len == 1)
                 return path;
 
+        if (path[len - 1] == '/') {
+                path[len - 1] = '\0';
+        }
+
         idx = libgf_rrindex (path, '/', 1);
         /* Move to the char after the / */
         ++idx;