check buildroot as other scripts

1 files changed, 10 insertions, 0 deletions

diff --git a/fix_pamd b/fix_pamd
index 895c44e..c87cb7d 100755
--- a/fix_pamd
+++ b/fix_pamd
@@ -1,5 +1,15 @@
 #!/bin/sh
 
+if [ -z "$RPM_BUILD_ROOT" ]; then
+    echo "No build root defined" >&2
+    exit 1
+fi
+
+if [ ! -d "$RPM_BUILD_ROOT" ]; then
+    echo "Invalid build root" >&2
+    exit 1
+fi
+
 configs=`find $RPM_BUILD_ROOT/etc/pam.d/ -type f ! -type l 2> /dev/null`
 if [ -n "$configs" ]; then
     echo -n "Fixing pam.d config files..."