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
77 lines
2.0 KiB
C
77 lines
2.0 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_file_constants.h"
|
|
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
|
|
/*
|
|
* open(2)
|
|
*
|
|
*/
|
|
ssize_t
|
|
alcove_sys_open(alcove_state_t *ap, const char *arg, size_t len,
|
|
char *reply, size_t rlen)
|
|
{
|
|
int index = 0;
|
|
int rindex = 0;
|
|
char pathname[PATH_MAX] = {0};
|
|
size_t plen = sizeof(pathname)-1;
|
|
int flags = 0;
|
|
mode_t mode = {0};
|
|
int fd = 0;
|
|
int errnum = 0;
|
|
|
|
/* pathname */
|
|
if (alcove_decode_iolist(arg, len, &index, pathname, &plen) < 0 ||
|
|
plen == 0)
|
|
return -1;
|
|
|
|
/* flags */
|
|
switch (alcove_decode_define_list(arg, len, &index, &flags,
|
|
alcove_file_constants)) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
return alcove_mk_error(reply, rlen, "unsupported");
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
/* mode */
|
|
if (alcove_decode_uint(arg, len, &index, (u_int32_t *)&mode) < 0)
|
|
return -1;
|
|
|
|
fd = open(pathname, flags, mode);
|
|
|
|
if (fd < 0)
|
|
goto ERROR;
|
|
|
|
ALCOVE_OK(
|
|
reply,
|
|
&rindex,
|
|
alcove_encode_long(reply, rlen, &rindex, fd)
|
|
);
|
|
|
|
return rindex;
|
|
|
|
ERROR:
|
|
errnum = errno;
|
|
(void)close(fd);
|
|
return alcove_mk_errno(reply, rlen, errnum);
|
|
}
|