cosmopolitan/libc/intrin/dos2errno.c
Justine Tunney fbc053e018 Make fixes and improvements
- Introduce __assert_disable global
- Improve strsignal() thread safety
- Make system call tracing thread safe
- Fix SO_RCVTIMEO / SO_SNDTIMEO on Windows
- Refactor DescribeFoo() functions into one place
- Fix fork() on Windows when TLS and MAP_STACK exist
- Round upwards in setsockopt(SO_RCVTIMEO) on Windows
- Disable futexes on OpenBSD which seem extremely broken
- Implement a better kludge for monotonic time on Windows
2022-06-25 21:09:09 -07:00

44 lines
2.6 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net 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/errno.h"
#include "libc/intrin/dos2errno.internal.h"
#include "libc/nt/errors.h"
#include "libc/sock/sock.h"
/**
* Translates Windows error using superset of consts.sh.
*
* This function is called by __winerr(). It can only be used on
* Windows, because it returns an errno. Normally, errnos will be
* programmed to be the same as DOS errnos, per consts.sh. But since
* there's so many more errors in DOS, this function provides an added
* optional benefit mapping additional constants onto the errnos in
* consts.sh.
*/
privileged errno_t __dos2errno(uint32_t error) {
int i;
if (error) {
for (i = 0; kDos2Errno[i].doscode; ++i) {
if (error == kDos2Errno[i].doscode) {
return *(const int *)((intptr_t)kDos2Errno + kDos2Errno[i].systemv);
}
}
}
return error;
}