dir.c: cifs symlinkd on OSX

* dir.c (dir_initialize): workaround of opendir failure at symlink
  directories on Windows via CIFS.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49170 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 14 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 59af0c7362..da8fdd7929 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Jan  7 19:19:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (dir_initialize): workaround of opendir failure at symlink
+	  directories on Windows via CIFS.
+
 Wed Jan  7 18:52:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* dir.c (need_normalization): not only HFS+, CIFS (SMB) is also
diff --git a/dir.c b/dir.c
index 292e9b8b82..e8b20afd24 100644
--- a/dir.c
+++ b/dir.c
@@ -480,6 +480,15 @@ dir_initialize(int argc, VALUE *argv, VALUE dir)
 	    rb_gc();
 	    dp->dir = opendir(path);
 	}
+#ifdef HAVE_GETATTRLIST
+	else if (errno == EIO) {
+	    u_int32_t attrbuf[1];
+	    struct attrlist al = {ATTR_BIT_MAP_COUNT, 0};
+	    if (getattrlist(path, &al, attrbuf, sizeof(attrbuf), FSOPT_NOFOLLOW) == 0) {
+		dp->dir = opendir(path);
+	    }
+	}
+#endif
 	if (dp->dir == NULL) {
 	    RB_GC_GUARD(dirname);
 	    rb_sys_fail_path(orig);