mirror of
https://github.com/jart/cosmopolitan.git
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0d748ad58e
This change fixes Cosmopolitan so it has fewer opinions about compiler warnings. The whole repository had to be cleaned up to be buildable in -Werror -Wall mode. This lets us benefit from things like strict const checking. Some actual bugs might have been caught too.
81 lines
3.7 KiB
C
81 lines
3.7 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 2021 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/struct/timeval.h"
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#include "libc/limits.h"
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#include "libc/macros.internal.h"
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#include "libc/nt/struct/linger.h"
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#include "libc/nt/thunk/msabi.h"
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#include "libc/sock/internal.h"
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#include "libc/sock/struct/linger.h"
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#include "libc/sock/syscall_fd.internal.h"
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#include "libc/stdckdint.h"
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#include "libc/sysv/consts/so.h"
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#include "libc/sysv/consts/sol.h"
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#include "libc/sysv/errfuns.h"
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__msabi extern typeof(__sys_setsockopt_nt) *const __imp_setsockopt;
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textwindows int sys_setsockopt_nt(struct Fd *fd, int level, int optname,
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const void *optval, uint32_t optlen) {
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int64_t ms, micros;
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struct SockFd *sockfd;
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const struct timeval *tv;
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const struct linger *linger;
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union {
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uint32_t millis;
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struct linger_nt linger;
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} u;
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if (level == SOL_SOCKET) {
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if (optname == SO_LINGER && optval && optlen == sizeof(struct linger)) {
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linger = optval;
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u.linger.l_onoff = linger->l_onoff;
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u.linger.l_linger = MIN(0xFFFF, MAX(0, linger->l_linger));
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optval = &u.linger;
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optlen = sizeof(u.linger);
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} else if ((optname == SO_RCVTIMEO || optname == SO_SNDTIMEO) && optval &&
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optlen == sizeof(struct timeval)) {
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tv = optval;
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if (ckd_mul(&ms, tv->tv_sec, 1000) || //
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ckd_add(µs, tv->tv_usec, 999) || //
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ckd_add(&ms, ms, micros / 1000) || //
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(ms < 0 || ms > 0xffffffff)) {
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u.millis = 0xffffffff;
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} else {
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u.millis = ms;
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}
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optval = &u.millis;
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optlen = sizeof(u.millis);
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sockfd = (struct SockFd *)fd->extra;
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if (optname == SO_RCVTIMEO) {
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sockfd->rcvtimeo = u.millis;
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}
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if (optname == SO_SNDTIMEO) {
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sockfd->sndtimeo = u.millis;
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}
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return 0;
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}
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}
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if (__imp_setsockopt(fd->handle, level, optname, optval, optlen) != -1) {
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return 0;
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} else {
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return __winsockerr();
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}
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}
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