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/*
* libexplain - Explain errno values returned by libc functions
* Copyright (C) 2008-2011 Peter Miller
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libexplain/ac/fcntl.h>
#include <libexplain/ac/stdio.h>
#include <libexplain/ac/stdlib.h>
#include <libexplain/ac/string.h>
#include <libexplain/ac/sys/mtio.h>
#include <libexplain/iocontrol.h>
#include <libexplain/ioctl.h>
#include <libexplain/strtol.h>
#include <libexplain/wrap_and_print.h>
#include <explain/syscall/ioctl.h>
void
explain_syscall_ioctl(int errnum, int argc, char **argv)
{
int fildes;
int request;
char dummy_data[10000];
void *data;
memset(dummy_data, 0, sizeof(dummy_data));
data = dummy_data;
switch (argc)
{
case 3:
data = (void *)explain_strtol_or_die(argv[2], 0, 0);
/* fall through... */
case 2:
request = explain_parse_ioctl_request_or_die(argv[1]);
if (argv[0][0] == '/')
{
/* it could be a file, specifically a relevant device */
fildes = open(argv[0], O_RDWR, 0);
if (fildes >= 0)
break;
}
fildes = explain_strtol_or_die(argv[0], 0, 0);
break;
default:
fprintf(stderr, "ioctl: requires 3 arguments, not %d\n", argc);
exit(EXIT_FAILURE);
}
#ifdef MTIOCTOP
if (request == (int)MTIOCTOP && data == dummy_data)
{
struct mtop *p = data;
p->mt_op = MTFSF;
}
#endif
explain_wrap_and_print
(
stdout,
explain_errno_ioctl(errnum, fildes, request, data)
);
}
/* vim:ts=8:sw=4:et */
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