File _service:obs_scm:0001-add-getenv.patch of Package biometric-authentication

From 8fe61f2bf34569b0a0995c7ae77f6fb237d01e4d Mon Sep 17 00:00:00 2001
From: peijiankang <peijiankang@kylinos.cn>
Date: Tue, 7 Mar 2023 15:17:03 +0800
Subject: [PATCH] add getenv

---
 src/drivers/community-multidevice/community_ops.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/drivers/community-multidevice/community_ops.c b/src/drivers/community-multidevice/community_ops.c
index 9766959..9f5bd15 100644
--- a/src/drivers/community-multidevice/community_ops.c
+++ b/src/drivers/community-multidevice/community_ops.c
@@ -56,10 +56,11 @@ int community_ops_discover(bio_dev *dev)
 	bio_print_debug ("bio_drv_demo_ops_discover start\n");
 
 	int ret = 0;
-
-	if ((strcmp(getenv("BIO_PRINT_LEVEL"), "7") == 0) && (strcmp(getenv("BIO_PRINT_COLOR"), "1") == 0))
-		setenv ("G_MESSAGES_DEBUG", "all", 0);
-
+        if (getenv("BIO_PRINT_LEVEL") != NULL && getenv("BIO_PRINT_COLOR") != NULL)
+        {
+            if ((strcmp(getenv("BIO_PRINT_LEVEL"), "7") == 0) && (strcmp(getenv("BIO_PRINT_COLOR"), "1") == 0))
+                setenv ("G_MESSAGES_DEBUG", "all", 0);
+        }
 	// 探测设备
 	ret = device_discover (dev);
 	if ( ret < 0 ) {
-- 
2.39.1