cosmopolitan/libc/sock/accept.c
Justine Tunney e142124730
Rewrite Windows connect()
Our old code wasn't working with projects like Qt that call connect() in
O_NONBLOCK mode multiple times. This change overhauls connect() to use a
simpler WSAConnect() API and follows the same pattern as cosmo accept().
This change also reduces the binary footprint of read(), which no longer
needs to depend on our enormous clock_gettime() function.
2024-09-12 23:07:52 -07:00

39 lines
2.5 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/sock/sock.h"
#include "libc/sock/struct/sockaddr.h"
/**
* Creates client socket file descriptor for incoming connection.
*
* On Windows, when this function blocks, there may be a 10 millisecond
* delay on the handling of signals or thread cancelation.
*
* @param fd is the server socket file descriptor
* @param opt_out_addr will receive the remote address
* @param opt_inout_addrsize provides and receives addr's byte length
* @return client fd which needs close(), or -1 w/ errno
* @cancelationpoint
* @asyncsignalsafe
* @restartable (unless SO_RCVTIMEO)
*/
int accept(int fd, struct sockaddr *opt_out_addr,
uint32_t *opt_inout_addrsize) {
return accept4(fd, opt_out_addr, opt_inout_addrsize, 0);
}