47 lines
2.7 KiB
C
47 lines
2.7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/internal.h"
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#include "libc/dce.h"
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#include "libc/sock/internal.h"
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#include "libc/sock/sock.h"
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#include "libc/sysv/errfuns.h"
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/**
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* Creates client socket file descriptor for incoming connection.
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*
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* @param fd is the server socket file descriptor
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* @param out_addr will receive the remote address
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* @param inout_addrsize provides and receives out_addr's byte length
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* @param flags can have SOCK_{CLOEXEC,NONBLOCK}, which may apply to
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* both the newly created socket and the server one
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* @return client fd which needs close(), or -1 w/ errno
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* @asyncsignalsafe
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*/
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int accept4(int fd, void *out_addr, uint32_t *inout_addrsize, int flags) {
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if (!out_addr) return efault();
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if (!inout_addrsize) return efault();
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if (!IsWindows()) {
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return accept4$sysv(fd, out_addr, inout_addrsize, flags);
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} else if (__isfdkind(fd, kFdSocket)) {
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return accept$nt(&g_fds.p[fd], out_addr, inout_addrsize, flags);
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} else {
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return ebadf();
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}
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}
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