cosmopolitan/libc/intrin/openprocess.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

46 lines
2.8 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 2022 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/calls/strace.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/nt/memory.h"
#include "libc/nt/process.h"
#include "libc/nt/struct/securityattributes.h"
#include "libc/nt/thunk/msabi.h"
__msabi extern typeof(OpenProcess) *const __imp_OpenProcess;
/**
* Creates file mapping object on the New Technology.
*
* @param dwDesiredAccess should be kNtProcess... combination
* @return ehandle, or 0 on failure
* @note this wrapper takes care of ABI, STRACE(), and __winerr()
* @see MapViewOfFileEx()
*/
textwindows int64_t OpenProcess(uint32_t dwDesiredAccess, bool32 bInheritHandle,
uint32_t dwProcessId) {
int64_t hHandle;
hHandle = __imp_OpenProcess(dwDesiredAccess, bInheritHandle, dwProcessId);
if (!hHandle) __winerr();
NTTRACE("OpenProcess(%s, %hhhd, %u) → %ld% m",
DescribeNtProcAccessFlags(dwDesiredAccess), bInheritHandle,
dwProcessId, hHandle);
return hHandle;
}