From 2fb4c551e8a87cbdfff014a8c9c4ebd6f138d01e Mon Sep 17 00:00:00 2001
From: =?utf8?q?Bj=C3=B6rn=20Jacke?= <bj@sernet.de>
Date: Sun, 10 Jun 2012 20:17:44 +0200
Subject: [PATCH] s4/pvfs: handle non-POSIX compliant Tru64, NetBSD and FreeBSD
 errno on O_NOFOLLOW symlink open calls

see also f75f1d62339f0accb4e574645b1d265c75a01b5b
---
 source4/ntvfs/posix/pvfs_sys.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/source4/ntvfs/posix/pvfs_sys.c b/source4/ntvfs/posix/pvfs_sys.c
index 9112848bfe..5775d0bb77 100644
--- a/source4/ntvfs/posix/pvfs_sys.c
+++ b/source4/ntvfs/posix/pvfs_sys.c
@@ -405,11 +405,32 @@ int pvfs_sys_unlink(struct pvfs_state *pvfs, const char *filename, bool allow_ov
 static bool contains_symlink(const char *path)
 {
 	int fd = open(path, PVFS_NOFOLLOW | O_RDONLY);
+	int posix_errno = errno;
 	if (fd != -1) {
 		close(fd);
 		return false;
 	}
-	return (errno == ELOOP);
+
+#if defined(ENOTSUP) && defined(OSF1)
+	/* handle special Tru64 errno */
+	if (errno == ENOTSUP) {
+		posix_errno = ELOOP;
+	}
+#endif /* ENOTSUP */
+
+#ifdef EFTYPE
+	/* fix broken NetBSD errno */
+	if (errno == EFTYPE) {
+		posix_errno = ELOOP;
+	}
+#endif /* EFTYPE */
+
+	/* fix broken FreeBSD errno */
+	if (errno == EMLINK) {
+		posix_errno = ELOOP;
+	}
+
+	return (posix_errno == ELOOP);
 }
 
 /*
-- 
2.34.1