[PATCH xts] xts5: XWriteBitmapFile-3: Report UNTESTED instead of FAIL when run as root

[Aaron Plattner]

This test creates a directory, makes it non-writable, then calls
XWriteBitmapFile to attempt to write to it, expecting it to fail with
BitmapOpenFailed.  This works fine when run as a normal user, but when
run as root, writing the file succeeds anyway.

Check the euid and bail out with UNTESTED if it's root.

Reported-by: Abhinav Shukla <abhinavs at nvidia.com>
Signed-off-by: Aaron Plattner <aplattner at nvidia.com>
---
 xts5/Xlib17/XWriteBitmapFile.m |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/xts5/Xlib17/XWriteBitmapFile.m b/xts5/Xlib17/XWriteBitmapFile.m
index 63cbf76..f784fea 100644
--- a/xts5/Xlib17/XWriteBitmapFile.m
+++ b/xts5/Xlib17/XWriteBitmapFile.m
@@ -313,6 +313,13 @@ Verify that a BitmapOpenFailed error occurred.
 >>CODE
 int ret;
 
+/* Writing won't fail even if the permissions say it should if we're root. */
+	if(geteuid() == 0) {
+	    report("File permissions cannot be tested as root.");
+	    UNTESTED;
+	    return;
+	}
+
 /* Create a suitable bitmap. */
 /* Create an unwritable directory. */
 	if(mkdir(XWBF_DIR, XWBF_MODE)) {
-- 
1.7.4.1