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https://github.com/jart/cosmopolitan.git
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3e4fd4b0ad
This change also pays off some of the remaining technical debt with stdio, file descriptors, and memory managemnt polyfills.
44 lines
2.7 KiB
C
44 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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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/assert.h"
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#include "libc/calls/internal.h"
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#include "libc/sock/internal.h"
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#include "libc/sock/yoink.inc"
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/**
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* Performs recv(), recvfrom(), or readv() on Windows NT.
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*
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* @param fd must be a socket
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* @return number of bytes received, or -1 w/ errno
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*/
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textwindows ssize_t recvfrom$nt(struct Fd *fd, const struct iovec *iov,
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size_t iovlen, uint32_t flags,
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void *opt_out_srcaddr,
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uint32_t *opt_inout_srcaddrsize) {
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uint32_t got;
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struct NtIovec iovnt[16];
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got = 0;
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if (WSARecvFrom(fd->handle, iovnt, iovec2nt(iovnt, iov, iovlen), &got, &flags,
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opt_out_srcaddr, opt_inout_srcaddrsize, NULL, NULL) != -1) {
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return got;
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} else {
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return __winsockerr();
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}
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}
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