upstream: add xvasprintf()

OpenBSD-Commit-ID: e5e3671c05c121993b034db935bce1a7aa372247

1 files changed, 3 insertions, 1 deletions

diff --git a/xmalloc.h b/xmalloc.h
index 1d5f62df7..abaf7ada2 100644
--- a/xmalloc.h
+++ b/xmalloc.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: xmalloc.h,v 1.18 2019/06/06 05:13:13 otto Exp $ */
+/* $OpenBSD: xmalloc.h,v 1.19 2019/11/12 22:32:48 djm Exp $ */
 
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -24,3 +24,5 @@ char	*xstrdup(const char *);
 int      xasprintf(char **, const char *, ...)
                 __attribute__((__format__ (printf, 2, 3)))
                 __attribute__((__nonnull__ (2)));
+int      xvasprintf(char **, const char *, va_list)
+                __attribute__((__nonnull__ (2)));