From: Holger Schemel <holger.schemel@virtion.de>
Date: Fri, 15 Nov 2024 20:12:24 +0000 (+0100)
Subject: improved wrapper function for vsnprintf()
X-Git-Tag: 4.4.0.0-test-4~59
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=cf0ccc15200e299803968703e442f2102ec62b52;p=rocksndiamonds.git

improved wrapper function for vsnprintf()
---

diff --git a/src/libgame/misc.c b/src/libgame/misc.c
index 15c46411..5cc80f79 100644
--- a/src/libgame/misc.c
+++ b/src/libgame/misc.c
@@ -1252,11 +1252,20 @@ char *getStringToLower(const char *s)
 
 static char *getStringVPrint(char *format, va_list ap)
 {
-  char s[MAX_LINE_LEN];
+  char test[1];
 
-  vsnprintf(s, MAX_LINE_LEN, format, ap);	// may truncate output string
+  // determine required size of string to be printed
+  int size = vsnprintf(test, 1, format, ap);
 
-  return getStringCopy(s);
+  // check if something went wrong (should not happen)
+  if (size < 0)
+    size = MAX_LINE_LEN;
+
+  char *s = checked_malloc(size + 1);
+
+  vsnprintf(s, size + 1, format, ap);
+
+  return s;
 }
 
 char *getStringPrint(char *format, ...)