From: Bastian Dehn <hhaalo@arcor.de>
Date: Fri, 19 Jan 2024 17:39:40 +0000 (+0100)
Subject: add null check get devices
X-Git-Tag: v1.0.0^2~519
X-Git-Url: https://gitweb.hhaalo.de/?a=commitdiff_plain;h=171db47148ef30cc99c2bca5df0730f9edb6a608;p=sane-kds-s2000w-net.git

add null check get devices
---

diff --git a/src/kds_s2000w_net.c b/src/kds_s2000w_net.c
index efc7411..1ebd621 100644
--- a/src/kds_s2000w_net.c
+++ b/src/kds_s2000w_net.c
@@ -5,18 +5,18 @@
 SANE_Status _sane_kds_s2000w_net_init(SANE_Int* version_code, SANE_Auth_Callback authorize)
 {
 	if (version_code == NULL) {
-		printf("verson_code pointer is NULL\n");
+		printf("init: verson_code pointer is NULL\n");
 		return SANE_STATUS_INVAL;
 	}
 
 	if (authorize == NULL) {
-		printf("verson_code pointer is NULL\n");
+		printf("init: verson_code pointer is NULL\n");
 		return SANE_STATUS_INVAL;
 	}
 
 	*version_code = SANE_VERSION_CODE(1, 0, 0);
-	printf("version_code %d", version_code);
-	printf("kds_s2000w_net init\n");
+	printf("init: version_code %ui", version_code);
+	printf("init: kds_s2000w_net init\n");
 
 	return SANE_STATUS_GOOD;
 }
@@ -29,6 +29,16 @@ void _sane_kds_s2000w_net_exit(void)
 SANE_Status _sane_kds_s2000w_net_get_devices(SANE_String_Const devicename,
 	SANE_Handle* handle)
 {
+	if (devicename == NULL) {
+		printf("get devices: devicename is null\n");
+		return SANE_STATUS_INVAL;
+	}
+
+	if (handle == NULL) {
+		printf("get devices: handle is null\n");
+		return SANE_STATUS_INVAL;
+	}
+
 	printf("kds_s2000w_net get devices\n");
 
 	return SANE_STATUS_GOOD;