mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-05-17 02:52:40 +00:00
90 lines
3.5 KiB
C
90 lines
3.5 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 2021 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/calls.h"
|
|
#include "libc/calls/syscall-nt.internal.h"
|
|
#include "libc/errno.h"
|
|
#include "libc/intrin/strace.internal.h"
|
|
#include "libc/nt/console.h"
|
|
#include "libc/nt/enum/ctrlevent.h"
|
|
#include "libc/nt/enum/processaccess.h"
|
|
#include "libc/nt/errors.h"
|
|
#include "libc/nt/process.h"
|
|
#include "libc/nt/runtime.h"
|
|
#include "libc/proc/proc.internal.h"
|
|
#include "libc/sysv/consts/sig.h"
|
|
#include "libc/sysv/errfuns.h"
|
|
#ifdef __x86_64__
|
|
|
|
textwindows int sys_kill_nt(int pid, int sig) {
|
|
|
|
// validate api usage
|
|
if (!(0 <= sig && sig <= 64)) {
|
|
return einval();
|
|
}
|
|
|
|
// XXX: NT doesn't really have process groups. For instance the
|
|
// CreateProcess() flag for starting a process group actually
|
|
// just does an "ignore ctrl-c" internally.
|
|
if (pid < -1) {
|
|
pid = -pid;
|
|
}
|
|
|
|
// no support for kill all yet
|
|
if (pid == -1) {
|
|
return einval();
|
|
}
|
|
|
|
// just call raise() if we're targeting self
|
|
if (pid <= 0 || pid == getpid()) {
|
|
if (sig) {
|
|
return raise(sig);
|
|
} else {
|
|
return 0; // ability check passes
|
|
}
|
|
}
|
|
|
|
// find existing handle we own for process
|
|
int64_t handle, closeme = 0;
|
|
if (!(handle = __proc_handle(pid))) {
|
|
if ((handle = OpenProcess(kNtProcessTerminate, false, pid))) {
|
|
closeme = handle;
|
|
} else {
|
|
goto OnError;
|
|
}
|
|
}
|
|
|
|
// perform actual kill
|
|
// process will report WIFSIGNALED with WTERMSIG(sig)
|
|
bool32 ok = TerminateProcess(handle, sig);
|
|
if (closeme) CloseHandle(closeme);
|
|
if (ok) return 0;
|
|
|
|
// handle error
|
|
OnError:
|
|
switch (GetLastError()) {
|
|
case kNtErrorInvalidHandle:
|
|
case kNtErrorInvalidParameter:
|
|
return esrch();
|
|
default:
|
|
return eperm();
|
|
}
|
|
}
|
|
|
|
#endif /* __x86_64__ */
|