From c93bca489dc84a58d8b6fa524b84a4722c02f714 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Tue, 14 Feb 2017 02:49:08 -0500
Subject: [PATCH] stdlib: Fixed crash on SDL_snprintf("%s", NULL).

Like other C runtimes, it should probably produce the string "(null)".

This bug probably only affected Windows, as most platforms use their standard
C runtime's snprintf().
---
 src/stdlib/SDL_string.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/stdlib/SDL_string.c b/src/stdlib/SDL_string.c
index d4712fab9..bc9d021d3 100644
--- a/src/stdlib/SDL_string.c
+++ b/src/stdlib/SDL_string.c
@@ -1313,6 +1313,10 @@ SDL_PrintString(char *text, size_t maxlen, SDL_FormatInfo *info, const char *str
     size_t length = 0;
     size_t slen;
 
+    if (string == NULL) {
+        string = "(null)";
+    }
+
     if (info && info->width && (size_t)info->width > SDL_strlen(string)) {
         char fill = info->pad_zeroes ? '0' : ' ';
         size_t width = info->width - SDL_strlen(string);