1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) Jeremy Harris 1995 - 2020 */
6 /* Copyright (c) The Exim Maintainers 2021 */
7 /* SPDX-License-Identifier: GPL-2.0-or-later */
8 /* See the file NOTICE for conditions of use and distribution. */
10 /* FreeBSD-specific code. This is concatenated onto the generic
19 os_sendfile(int out, int in, off_t * offp, size_t cnt)
21 off_t loff = offp ? *offp : 0;
24 if (sendfile(in, out, loff, cnt, NULL, &written, 0) < 0) return (ssize_t)-1;
25 if (offp) *offp = loff + written;
26 return (ssize_t)written;
29 /*************************************************
30 TCP Fast Open: check that the ioctl is accepted
31 *************************************************/
33 #ifndef COMPILE_UTILITY
40 if ( (sock = socket(AF_INET, SOCK_STREAM, 0)) >= 0
41 && setsockopt(sock, IPPROTO_TCP, TCP_FASTOPEN, &on, sizeof(on) >= 0)
43 f.tcp_fastopen_ok = TRUE;
50 /* End of os.c-Linux */