* path.cc (chdir): Avoid trailing dot calculation when chdir == '/' or we end

up with an empty string.

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index e1e7020..3aaeece 100644 (file)
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+Sat Jul 29 13:33:49 2000  Christopher Faylor <cgf@cygnus.com>
+
+       * path.cc (chdir): Avoid trailing dot calculation when chdir == '/'
+       or we end up with an empty string.
+
 Sat Jul 29 12:11:33 2000  Christopher Faylor <cgf@cygnus.com>
 
        * include/cygwin/version.h: Bump DLL minor version number to 5 due

diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
index a46ac4f..469de5e 100644 (file)
--- a/winsup/cygwin/path.cc
+++ b/winsup/cygwin/path.cc
@@ -2642,7 +2642,7 @@ chdir (const char *dir)
          of dots > 2 here instead of returning an error code.  Counts of dots
          <= 2 are already eliminated by normalize_posix_path. */
       char *last_slash = strrchr (pathbuf, '/');
-      if (last_slash && strspn (last_slash + 1, ".") == strlen (last_slash + 1))
+      if (last_slash > pathbuf && strspn (last_slash + 1, ".") == strlen (last_slash + 1))
         *last_slash = '\0';
       free (cwd_posix);
       cwd_posix = strdup (pathbuf);