diff options
Diffstat (limited to 'support/xrecvfrom.c')
-rw-r--r-- | support/xrecvfrom.c | 33 |
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 @@ -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; +} |