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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/stdio.h>
#include <libexplain/ac/stdlib.h>
#include <libexplain/ac/unistd.h>
#include <libexplain/read.h>
#include <libexplain/string_to_thing.h>
#include <libexplain/wrap_and_print.h>
#include <explain/syscall/read.h>
void
explain_syscall_read(int errnum, int argc, char **argv)
{
int fildes = -1;
void *data = 0;
size_t data_size = 0;
switch (argc)
{
case 3:
data_size = explain_parse_long_or_die(argv[2]);
/* fall through... */
case 2:
data = explain_parse_pointer_or_die(argv[1]);
/* fall through... */
case 1:
fildes = explain_parse_long_or_die(argv[0]);
break;
default:
fprintf(stderr, "read: needs 3 arguments, not %d\n", argc);
exit(EXIT_FAILURE);
}
explain_wrap_and_print
(
stdout,
explain_errno_read(errnum, fildes, data, data_size)
);
}
/* vim: set ts=8 sw=4 et : */
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