Commit 9ce1ba6f8b2d1ce8cc6d09ec5d9aaac38e767d9c
2019-05-21T00:35:11
Call FormatMessage() with FORMAT_MESSAGE_IGNORE_INSERTS Documentation says: In particular, it is unsafe to take an arbitrary system error code returned from an API and use FORMAT_MESSAGE_FROM_SYSTEM without FORMAT_MESSAGE_IGNORE_INSERTS.
diff --git a/dlfcn.c b/dlfcn.c
index 69670d1..993808d 100644
--- a/dlfcn.c
+++ b/dlfcn.c
@@ -157,7 +157,7 @@ static void save_err_str( const char *str )
error_buffer[pos++] = ':';
error_buffer[pos++] = ' ';
- ret = FormatMessageA( FORMAT_MESSAGE_FROM_SYSTEM, NULL, dwMessageId,
+ ret = FormatMessageA( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwMessageId,
MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ),
error_buffer+pos, (DWORD) (sizeof(error_buffer)-pos), NULL );
pos += ret;