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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
69 lines
3.4 KiB
C
69 lines
3.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et 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/calls/struct/fd.internal.h"
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#include "libc/calls/struct/iovec.h"
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#include "libc/calls/struct/sigset.internal.h"
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#include "libc/nt/struct/iovec.h"
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#include "libc/nt/winsock.h"
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#include "libc/sock/internal.h"
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#include "libc/sock/syscall_fd.internal.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/errfuns.h"
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#ifdef __x86_64__
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#define _MSG_OOB 1
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#define _MSG_PEEK 2
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#define _MSG_WAITALL 8
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#define _MSG_DONTWAIT 64
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struct RecvArgs {
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const struct iovec *iov;
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size_t iovlen;
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struct NtIovec iovnt[16];
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};
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static textwindows int sys_recv_nt_start(int64_t handle,
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struct NtOverlapped *overlap,
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uint32_t *flags, void *arg) {
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struct RecvArgs *args = arg;
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return WSARecv(handle, args->iovnt,
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__iovec2nt(args->iovnt, args->iov, args->iovlen), 0, flags,
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overlap, 0);
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}
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textwindows ssize_t sys_recv_nt(int fd, const struct iovec *iov, size_t iovlen,
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uint32_t flags) {
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if (flags & ~(_MSG_DONTWAIT | _MSG_OOB | _MSG_PEEK | _MSG_WAITALL)) {
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return einval();
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}
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ssize_t rc;
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struct Fd *f = g_fds.p + fd;
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sigset_t m = __sig_block();
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bool nonblock = !(flags & _MSG_WAITALL) &&
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((f->flags & O_NONBLOCK) || (flags & _MSG_DONTWAIT));
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flags &= ~_MSG_DONTWAIT;
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rc = __winsock_block(f->handle, flags, nonblock, f->rcvtimeo, m,
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sys_recv_nt_start, &(struct RecvArgs){iov, iovlen});
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__sig_unblock(m);
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return rc;
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}
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#endif /* __x86_64__ */
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