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/*
* libexplain - Explain errno values returned by libc functions
* Copyright (C) 2008-2010, 2013 Peter Miller
* Written by Peter Miller <pmiller@opensource.org.au>
*
* 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/fcntl.h>
#include <libexplain/buffer/errno/fcntl.h>
#include <libexplain/buffer/open_flags.h>
#include <libexplain/buffer/signal.h>
#include <libexplain/strtol.h>
#include <libexplain/wrap_and_print.h>
#include <explain/syscall/fcntl.h>
void
explain_syscall_fcntl(int errnum, int argc, char **argv)
{
int fildes;
int command;
if (argc < 2)
{
fprintf(stderr, "fcntl: at least 2 arguments required\n");
exit(EXIT_FAILURE);
}
fildes = explain_strtol_or_die(argv[0], 0, 0);
command = explain_fcntl_command_parse_or_die(argv[1], "fcntl arg 2");
switch (command)
{
default:
if (argc > 2)
{
fprintf(stderr, "fcntl: need 2 arguments (not %d)\n", argc);
exit(EXIT_FAILURE);
}
explain_wrap_and_print
(
stdout,
explain_errno_fcntl(errnum, fildes, command, 0)
);
break;
#ifdef F_SETSIG
case F_SETSIG:
{
long arg;
if (argc != 3)
{
fprintf(stderr, "fcntl: need 3 arguments (not %d)\n", argc);
exit(EXIT_FAILURE);
}
arg = explain_signal_parse_or_die(argv[2], "fcntl arg 3");
explain_wrap_and_print
(
stdout,
explain_errno_fcntl(errnum, fildes, command, arg)
);
}
break;
#endif
#ifdef F_NOTIFY
case F_NOTIFY: /* FIXME: parse notify bits */
#endif
#ifdef F_SETLEASE
case F_SETLEASE: /* FIXME: parse lease bits */
#endif
case F_DUPFD:
#ifdef F_DUPFD_CLOEXEC
case F_DUPFD_CLOEXEC:
#endif
case F_SETFD:
case F_SETOWN:
{
long arg;
if (argc != 3)
{
fprintf(stderr, "fcntl: need 3 arguments (not %d)\n", argc);
exit(EXIT_FAILURE);
}
arg = explain_strtol_or_die(argv[2], 0, 0);
explain_wrap_and_print
(
stdout,
explain_errno_fcntl(errnum, fildes, command, arg)
);
}
break;
case F_SETFL:
{
long arg;
if (argc != 3)
{
fprintf(stderr, "fcntl: need 3 arguments (not %d)\n", argc);
exit(EXIT_FAILURE);
}
arg = explain_parse_open_flags_or_die(argv[2], "fcntl arg 3");
explain_wrap_and_print
(
stdout,
explain_errno_fcntl(errnum, fildes, command, arg)
);
}
break;
case F_GETLK:
case F_SETLK:
case F_SETLKW:
{
static struct flock f_zero;
struct flock f;
if (argc > 2)
{
fprintf(stderr, "fcntl: need 2 arguments (not %d)\n", argc);
exit(EXIT_FAILURE);
}
f = f_zero;
f.l_type = F_RDLCK;
explain_wrap_and_print
(
stdout,
explain_errno_fcntl(errnum, fildes, command, (long)&f)
);
}
break;
#if defined(F_GETLK64) && F_GETLK != F_GETLK64
case F_GETLK64:
case F_SETLK64:
case F_SETLKW64:
{
static struct flock64 f_zero;
struct flock64 f;
if (argc != 2)
{
fprintf(stderr, "fcntl: need 2 arguments (not %d)", argc);
exit(EXIT_FAILURE);
}
f = f_zero;
f.l_type = F_RDLCK;
explain_wrap_and_print
(
stdout,
explain_errno_fcntl(errnum, fildes, command, (long)&f)
);
}
break;
#endif
}
}
/* vim: set ts=8 sw=4 et : */
|
