Added support for socket descriptors

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@318 42af7a65-404d-4744-a932-0658087f49c3

lib/lib_dirname.c

@@ -100,7 +100,7 @@ char *dirname(char *path)
   /* Check for trailing slash characters */
 
   len = strlen(path);
-  while (path[len-1] = '/')
+  while (path[len-1] == '/')
     {
       /* Remove trailing '/' UNLESS this would make a zero length string */
       if (len > 1)