textscreen: Use safe string functions.

Define TXT_{StringCopy,StringConcat,snprintf,vsnprintf} as analogs of
the m_misc.c versions so that the textscreen library does not need a
dependency on the Doom code, and change all textscreen code to use
these instead of unsafe functions. This fixes #372.

1 files changed, 1 insertions, 1 deletions

diff --git a/textscreen/txt_window.c b/textscreen/txt_window.c
index 9ab6da9b..0eded4bd 100644
--- a/textscreen/txt_window.c
+++ b/textscreen/txt_window.c
@@ -511,7 +511,7 @@ txt_window_t *TXT_MessageBox(char *title, char *message, ...)
     va_list args;
 
     va_start(args, message);
-    vsnprintf(buf, sizeof(buf), message, args);
+    TXT_vsnprintf(buf, sizeof(buf), message, args);
     va_end(args);
 
     window = TXT_NewWindow(title);