From 7cbdea9b813d6ddbfc8c6b94e64e7a841db817bd Mon Sep 17 00:00:00 2001
From: orbitcowboy <orbitcowboy@web.de>
Date: Wed, 20 Apr 2022 18:15:54 +0200
Subject: [PATCH] posix.cfg: Ensure null pointer input is correctly handled for
 strcasecmp().

---
 test/cfg/posix.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/test/cfg/posix.c b/test/cfg/posix.c
index ce59ee363..1bc2d534a 100644
--- a/test/cfg/posix.c
+++ b/test/cfg/posix.c
@@ -216,6 +216,16 @@ char * overlappingWriteFunction_stpcpy(char *src, char *dest)
     return stpcpy(src, src);
 }
 
+int nullPointer_strcasecmp(char *a, char *b)
+{
+    // No warning shall be shown:
+    (void) strcasecmp(a, b);
+    // cppcheck-suppress nullPointer
+    (void) strcasecmp(a, NULL);
+    // cppcheck-suppress nullPointer
+    return strcasecmp(NULL, b);
+}
+
 int nullPointer_strncasecmp(char *a, char *b, size_t n)
 {
     // No warning shall be shown: