From: Holger Schemel <info@artsoft.org>
Date: Sun, 30 Jun 2024 14:39:18 +0000 (+0200)
Subject: added some safety checks to string functions
X-Git-Tag: 4.4.0.0-test-3~13
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=9b6032c77dce1efc1f5efa285c9a4321f6f5e9f3;p=rocksndiamonds.git

added some safety checks to string functions
---

diff --git a/src/libgame/misc.c b/src/libgame/misc.c
index ed4bd5d6..6b4acba8 100644
--- a/src/libgame/misc.c
+++ b/src/libgame/misc.c
@@ -1222,6 +1222,9 @@ char *getStringCopyNStatic(const char *s, int n)
 
 char *getStringToUpper(const char *s)
 {
+  if (s == NULL)
+    return NULL;
+
   char *s_copy = checked_malloc(strlen(s) + 1);
   char *s_ptr = s_copy;
 
@@ -1234,6 +1237,9 @@ char *getStringToUpper(const char *s)
 
 char *getStringToLower(const char *s)
 {
+  if (s == NULL)
+    return NULL;
+
   char *s_copy = checked_malloc(strlen(s) + 1);
   char *s_ptr = s_copy;