From 40b227940768f22f3cfd7569be2de2c85c025fd2 Mon Sep 17 00:00:00 2001
From: Eshan Kelkar <eshankelkar@galorithm.com>
Date: Tue, 11 Jun 2024 09:44:08 +0530
Subject: [PATCH] match.c: Add check for NULL arguments passed to match_group()

This commit also initializes the pointers in match_group() to NULL
in order to follow libssh coding guidelines.

Signed-off-by: Eshan Kelkar <eshankelkar@galorithm.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Sahana Prasad <sahana@redhat.com>
---
 src/match.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/match.c b/src/match.c
index 9e3ce78f..9993b5f2 100644
--- a/src/match.c
+++ b/src/match.c
@@ -595,8 +595,12 @@ match_cidr_address_list(const char *address,
  */
 int match_group(const char *group, const char *object)
 {
-    const char *a;
-    const char *z;
+    const char *a = NULL;
+    const char *z = NULL;
+
+    if (group == NULL || object == NULL) {
+        return 0;
+    }
 
     z = group;
     do {