mirror of
https://github.com/uselessd/alcove.git
synced 2026-04-16 17:55:51 +00:00
ca0d6f12b4
Return {error, unsupported} if an atom is used as an argument and the
constant the atom represents does not exist on the current platform.
The previous behaviour was inconsistent and non-deterministic. The
constant might:
* return {error,einval}. System return values could not be distinguished
from alcove return values.
* cause an exception
* be silently ignored
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* Copyright (c) 2014, Michael Santos <michael.santos@gmail.com>
|
|
*
|
|
* 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 "alcove.h"
|
|
#include "alcove_call.h"
|
|
#include "alcove_signal_constants.h"
|
|
|
|
/*
|
|
* kill(2)
|
|
*
|
|
*/
|
|
ssize_t
|
|
alcove_sys_kill(alcove_state_t *ap, const char *arg, size_t len,
|
|
char *reply, size_t rlen)
|
|
{
|
|
int index = 0;
|
|
|
|
pid_t pid = 0;
|
|
int signum = 0;
|
|
int rv = 0;
|
|
|
|
/* pid */
|
|
if (alcove_decode_int(arg, len, &index, &pid) < 0)
|
|
return -1;
|
|
|
|
/* signal */
|
|
switch (alcove_decode_define(arg, len, &index, &signum,
|
|
alcove_signal_constants)) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
return alcove_mk_error(reply, rlen, "unsupported");
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
rv = kill(pid, signum);
|
|
|
|
return (rv < 0)
|
|
? alcove_mk_errno(reply, rlen, errno)
|
|
: alcove_mk_atom(reply, rlen, "ok");
|
|
}
|