resolv: Add beginnings of a libresolv test suite

1 files changed, 35 insertions, 0 deletions

diff --git a/support/xsendto.c b/support/xsendto.c
new file mode 100644
index 0000000000..6963aa7cf6
--- /dev/null
+++ b/support/xsendto.c
@@ -0,0 +1,35 @@
+/* sendto with error checking.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <support/xsocket.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <support/check.h>
+
+void
+xsendto (int fd, const void *buf, size_t buflen, int flags,
+         const struct sockaddr *sa, socklen_t salen)
+{
+  ssize_t ret = sendto (fd, buf, buflen, flags, sa, salen);
+  if (ret < 0)
+    FAIL_EXIT1 ("sendto (%d), %zu bytes, family %d: %m",
+                fd, buflen, sa->sa_family);
+  if (ret != buflen)
+    FAIL_EXIT1 ("sendto (%d) sent %zd bytes instead of %zu", fd, ret, buflen);
+}