summaryrefslogtreecommitdiffstats
path: root/OS/os.c-FreeBSD
blob: cb0b0bf7fb5f190a8a6c72317e350014c081e389 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
/*************************************************
*     Exim - an Internet mail transport agent    *
*************************************************/

/* Copyright (c) Jeremy Harris 1995 - 2020 */
/* 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 */