mirror of
https://github.com/uselessd/alcove.git
synced 2026-04-15 09:15:19 +00:00
118 lines
3.4 KiB
C
118 lines
3.4 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 <sys/mount.h>
|
|
#include "alcove_mount_constants.h"
|
|
|
|
#define MAYBE_NULL(_len, _buf) ((_len) == 0 ? NULL : (_buf))
|
|
|
|
|
|
/*
|
|
* mount(2)
|
|
*
|
|
*/
|
|
ssize_t
|
|
alcove_sys_mount(alcove_state_t *ap, const char *arg, size_t len,
|
|
char *reply, size_t rlen)
|
|
{
|
|
int index = 0;
|
|
|
|
char source[PATH_MAX] = {0};
|
|
size_t slen = sizeof(source)-1;
|
|
char target[PATH_MAX] = {0};
|
|
size_t tlen = sizeof(target)-1;
|
|
char filesystemtype[PATH_MAX] = {0};
|
|
size_t flen = sizeof(filesystemtype)-1;
|
|
unsigned long mountflags = 0;
|
|
char data[MAXMSGLEN] = {0};
|
|
size_t dlen = sizeof(data);
|
|
char opt[MAXMSGLEN] = {0};
|
|
size_t olen = sizeof(opt);
|
|
|
|
int rv = 0;
|
|
|
|
/* source */
|
|
if (alcove_decode_iolist(arg, len, &index, source, &slen) < 0)
|
|
return -1;
|
|
|
|
/* target */
|
|
if (alcove_decode_iolist(arg, len, &index, target, &tlen) < 0 ||
|
|
tlen == 0)
|
|
return -1;
|
|
|
|
/* filesystemtype */
|
|
if (alcove_decode_iolist(arg, len, &index, filesystemtype, &flen) < 0)
|
|
return -1;
|
|
|
|
/* mountflags */
|
|
if (alcove_decode_define_list(arg, len, &index, (int *)&mountflags,
|
|
alcove_mount_constants) < 0)
|
|
return -1;
|
|
|
|
/* data */
|
|
if (alcove_decode_iolist(arg, len, &index, data, &dlen) < 0)
|
|
return -1;
|
|
|
|
/* options */
|
|
if (alcove_decode_iolist(arg, len, &index, opt, &olen) < 0)
|
|
return -1;
|
|
|
|
#ifdef __linux__
|
|
rv = mount(
|
|
MAYBE_NULL(slen, source),
|
|
target,
|
|
MAYBE_NULL(flen, filesystemtype),
|
|
mountflags,
|
|
MAYBE_NULL(dlen, data)
|
|
);
|
|
#elif defined(__sunos__)
|
|
/* The option buffer is input/output with the mount options placed
|
|
* in the buf on return. The option buffer must be large enough to
|
|
* hold the returned options string.
|
|
*
|
|
* * if the buffer is too small, the return value is {error,eoverflow}
|
|
* and the mount is successful
|
|
*
|
|
* * if the buffer is too large(?), the return value is {error,einval}
|
|
* and the mount fails
|
|
*/
|
|
rv = mount(
|
|
MAYBE_NULL(slen, source),
|
|
target,
|
|
mountflags,
|
|
MAYBE_NULL(flen, filesystemtype),
|
|
MAYBE_NULL(dlen, data),
|
|
dlen,
|
|
MAYBE_NULL(olen, opt),
|
|
olen
|
|
);
|
|
#else
|
|
rv = mount(
|
|
MAYBE_NULL(flen, filesystemtype),
|
|
target,
|
|
mountflags,
|
|
MAYBE_NULL(dlen, data)
|
|
#ifdef __NetBSD__
|
|
, dlen
|
|
#endif
|
|
);
|
|
#endif
|
|
|
|
return (rv < 0)
|
|
? alcove_mk_errno(reply, rlen, errno)
|
|
: alcove_mk_atom(reply, rlen, "ok");
|
|
}
|