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| | /*
* accept()/accept4() wrappers
*
* It's tricky for gnulib to work with SOCK_CLOEXEC/SOCK_NONBLOCK,
* and any emulation would not be thread-safe. So we'll handle
* accept4()-compatibility for ourselves.
*
* Copyright (C) 2012-2020 all contributors <cmogstored-public@yhbt.net>
* License: GPL-3.0+ <https://www.gnu.org/licenses/gpl-3.0.txt>
*/
#if defined(HAVE_ACCEPT4) && defined(SOCK_CLOEXEC) && defined(SOCK_NONBLOCK)
#define MOG_ACCEPT_FN "accept4()"
static inline int
mog_accept_fn(int sockfd, struct sockaddr *addr, socklen_t *addrlen)
{
return accept4(sockfd, addr, addrlen, SOCK_CLOEXEC|SOCK_NONBLOCK);
}
#else
#define MOG_ACCEPT_FN "accept()"
static inline int
mog_accept_fn(int sockfd, struct sockaddr *addr, socklen_t *addrlen)
{
int fd = accept(sockfd, addr, addrlen);
/*
* If we don't have a real accept4() syscall, don't
* bother setting O_CLOEXEC here. Systems without
* accept4() will end up calling mog_cloexec_from()
* anyways in a fork()-ed child
*/
if (fd >= 0)
CHECK(int, 0, mog_set_nonblocking(fd, true));
return fd;
}
#endif /* HAVE_ACCEPT4 */
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