remove mpr message length limitation

1 files changed, 10 insertions, 5 deletions

diff --git a/crawl-ref/source/message.cc b/crawl-ref/source/message.cc
index 6a3d36c487..a6adba6847 100644
--- a/crawl-ref/source/message.cc
+++ b/crawl-ref/source/message.cc
@@ -413,12 +413,17 @@ int channel_to_colour( msg_channel_type channel, int param )
 static void do_message_print( msg_channel_type channel, int param,
                               const char *format, va_list argp )
 {
-    // Is this limit intentional?
     char buff[200];
-    vsnprintf( buff, sizeof( buff ), format, argp );
-    buff[199] = 0;
-
-    mpr(buff, channel, param);
+    size_t len = vsnprintf( buff, sizeof( buff ), format, argp );
+    if (len < sizeof( buff )) {
+        mpr( buff, channel, param );
+    }
+    else {
+        char *heapbuf = (char*)malloc( len + 1 );
+        vsnprintf( heapbuf, len + 1, format, argp );
+        mpr( heapbuf, channel, param );
+        free( heapbuf );
+    }
 }
 
 void mprf( msg_channel_type channel, int param, const char *format, ... )