resolv: Add beginnings of a libresolv test suite

1 files changed, 33 insertions, 0 deletions

diff --git a/support/xrecvfrom.c b/support/xrecvfrom.c
new file mode 100644
index 0000000..2cd473a
--- /dev/null
+++ b/support/xrecvfrom.c
@@ -0,0 +1,33 @@
+/* recvfrom 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>
+
+size_t
+xrecvfrom (int fd, void *buf, size_t buflen, int flags,
+           struct sockaddr *sa, socklen_t *salen)
+{
+  ssize_t ret = recvfrom (fd, buf, buflen, flags, sa, salen);
+  if (ret < 0)
+    FAIL_EXIT1 ("error: recvfrom (%d), %zu bytes buffer: %m", fd, buflen);
+  return ret;
+}