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/*
* libexplain - Explain errno values returned by libc functions
* Copyright (C) 2011, 2013 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 Lesser
* 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/stdio.h>
#include <libexplain/ac/stdlib.h>
#include <libexplain/ac/string.h>
#include <libexplain/ac/sys/shm.h>
#include <libexplain/buffer/shmctl_command.h>
#include <libexplain/buffer/shmid_ds.h>
#include <libexplain/buffer/shm_info.h>
#include <libexplain/buffer/shminfo.h>
#include <libexplain/shmctl.h>
#include <libexplain/string_to_thing.h>
#include <libexplain/wrap_and_print.h>
#include <explain/syscall/shmctl.h>
void
explain_syscall_shmctl(int errnum, int argc, char **argv)
{
int shmid;
int command;
struct shmid_ds *data;
union data_t
{
int u0;
#ifdef HAVE_SYS_SHM_H
struct shmid_ds u1;
#endif
#ifdef SHM_INFO
struct shm_info u2;
#endif
#ifdef IPC_INFO
struct shminfo u3;
#endif
};
union data_t dummy;
memset(&dummy, 0, sizeof(dummy));
data = &dummy.u1;
switch (argc)
{
case 3:
data = explain_parse_pointer_or_die(argv[2]);
/* Fall through... */
case 2:
command =
explain_parse_shmctl_command_or_die(argv[1], "arg 2");
shmid = explain_parse_int_or_die(argv[0]);
break;
default:
fprintf(stderr, "shmctl: requires 3 arguments, not %d\n", argc);
exit(EXIT_FAILURE);
}
explain_wrap_and_print(stdout, explain_errno_shmctl(errnum, shmid, command,
data));
}
/* vim: set ts=8 sw=4 et : */
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