From dc15954196e237d10c0fe3e9dd30316e1704ce25 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@samba.org>
Date: Wed, 12 Jul 2017 16:07:25 +0200
Subject: [PATCH] s3:client: Use KRB5CCNAME in smbspool_krb5_wrapper if set

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
---
 source3/client/smbspool_krb5_wrapper.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/source3/client/smbspool_krb5_wrapper.c b/source3/client/smbspool_krb5_wrapper.c
index a72006a4c4f..9a82b2a7b69 100644
--- a/source3/client/smbspool_krb5_wrapper.c
+++ b/source3/client/smbspool_krb5_wrapper.c
@@ -181,6 +181,13 @@ int main(int argc, char *argv[])
 		return CUPS_BACKEND_FAILED;
 	}
 
+	env = getenv("KRB5CCNAME");
+	if (env != NULL && env[0] != 0) {
+		snprintf(gen_cc, sizeof(gen_cc), "%s", env);
+
+		goto create_env;
+	}
+
 	snprintf(gen_cc, sizeof(gen_cc), "/tmp/krb5cc_%d", uid);
 
 	rc = lstat(gen_cc, &sb);
@@ -205,6 +212,7 @@ int main(int argc, char *argv[])
 		}
 	}
 
+create_env:
 	/*
 	 * Make sure we do not have LD_PRELOAD or other security relevant
 	 * environment variables set.