Fix for xauth failing on ENOSPC (= disk full)

If xauth must store its XAUTHORITY file on a file system which is
full, it will be unable to write the changes. This condition was
not detected and therefore often the whole XAUTHORITY file was
cleared. Here is the fix.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=21260

Signed-off-by: Dr. Tilmann Bubeck <tilmann@bubecks.de>

1 files changed, 4 insertions, 1 deletions

diff --git a/process.c b/process.c
index b44858a..5b12c92 100644
--- a/process.c
+++ b/process.c
@@ -844,7 +844,10 @@ write_auth_file(char *tmp_nam)
 	}
     }
 
-    (void) fclose (fp);
+    if (fclose(fp)) {
+	return -1;
+    }
+
     return 0;
 }