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-rw-r--r--support/xrecvfrom.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/support/xrecvfrom.c b/support/xrecvfrom.c
new file mode 100644
index 0000000000..2cd473a10d
--- /dev/null
+++ b/support/xrecvfrom.c
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+/* 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;
+}