/* 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 . */ #include #include #include #include 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; }