[exim.git] / src / OS / os.c-FreeBSD

/*************************************************
*     Exim - an Internet mail transport agent    *
*************************************************/

/* Copyright (c) Jeremy Harris 1995 - 2019 */
/* See the file NOTICE for conditions of use and distribution. */

/* FreeBSD-specific code. This is concatenated onto the generic
src/os.c file. */


/*************
Sendfile shim
*************/

ssize_t
os_sendfile(int out, int in, off_t * offp, size_t cnt)
{
off_t loff = *offp, written;

if (sendfile(in, out, loff, cnt, NULL, &written, 0) < 0) return (ssize_t)-1;
*offp = loff + written;
return (ssize_t)written;
}

/*************************************************
TCP Fast Open:  check that the ioctl is accepted
*************************************************/

#ifndef COMPILE_UTILITY
void
tfo_probe(void)
{
# ifdef TCP_FASTOPEN
int sock;

if (  (sock = socket(AF_INET, SOCK_STREAM, 0)) >= 0
   && setsockopt(sock, IPPROTO_TCP, TCP_FASTOPEN, &on, sizeof(on) >= 0)
   )
  f.tcp_fastopen_ok = TRUE;
close(sock);
# endif
}
#endif


/* End of os.c-Linux */
Commit	Line	Data
	1	/*************************************************
	2	* Exim - an Internet mail transport agent *
	3	*************************************************/
	4
	5	/* Copyright (c) Jeremy Harris 1995 - 2019 */
	6	/* See the file NOTICE for conditions of use and distribution. */
	7
	8	/* FreeBSD-specific code. This is concatenated onto the generic
	9	src/os.c file. */
	10
	11
	12	/*************
	13	Sendfile shim
	14	*************/
	15
	16	ssize_t
	17	os_sendfile(int out, int in, off_t * offp, size_t cnt)
	18	{
	19	off_t loff = *offp, written;
	20
	21	if (sendfile(in, out, loff, cnt, NULL, &written, 0) < 0) return (ssize_t)-1;
	22	*offp = loff + written;
	23	return (ssize_t)written;
	24	}
	25
	26	/*************************************************
	27	TCP Fast Open: check that the ioctl is accepted
	28	*************************************************/
	29
	30	#ifndef COMPILE_UTILITY
	31	void
	32	tfo_probe(void)
	33	{
	34	# ifdef TCP_FASTOPEN
	35	int sock;
	36
	37	if ( (sock = socket(AF_INET, SOCK_STREAM, 0)) >= 0
	38	&& setsockopt(sock, IPPROTO_TCP, TCP_FASTOPEN, &on, sizeof(on) >= 0)
	39	)
	40	f.tcp_fastopen_ok = TRUE;
	41	close(sock);
	42	# endif
	43	}
	44	#endif
	45
	46
	47	/* End of os.c-Linux */