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/*
* libexplain - Explain errno values returned by libc functions
* Copyright (C) 2010, 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/sys/ptrace.h>
#include <libexplain/buffer/signal.h>
#include <libexplain/buffer/ptrace_request.h>
#include <libexplain/buffer/ptrace_options.h>
#include <libexplain/ptrace.h>
#include <libexplain/string_to_thing.h>
#include <libexplain/strtol.h>
#include <libexplain/wrap_and_print.h>
#include <explain/syscall/ptrace.h>
void
explain_syscall_ptrace(int errnum, int argc, char **argv)
{
int request;
pid_t pid;
void *addr;
void *data;
if (argc < 2)
{
oops:
exit(EXIT_FAILURE);
}
request = explain_parse_ptrace_request_or_die(argv[0], "arg 1");
pid = 0;
addr = 0;
data = 0;
switch (argc)
{
case 4:
switch (request)
{
#ifdef PT_CONTINUE
case PT_CONTINUE:
#endif
#ifdef PT_SYSCALL
case PT_SYSCALL:
#endif
#ifdef PT_STEP
case PT_STEP:
#endif
#ifdef PT_DETACH
case PT_DETACH:
#endif
data = (void *)(long)explain_signal_parse_or_die(argv[3], "arg 4");
break;
#ifdef PT_SETOPTIONS
case PT_SETOPTIONS:
#endif
#ifdef PT_OLDSETOPTIONS
case PT_OLDSETOPTIONS:
#endif
data =
(void *)explain_parse_ptrace_options_or_die(argv[3], "arg 4");
break;
#ifdef PT_WRITE_I
case PT_WRITE_I:
#endif
#ifdef PT_WRITE_D
case PT_WRITE_D:
#endif
#ifdef PT_WRITE_U
case PT_WRITE_U:
#endif
data = (void *)explain_strtol_or_die(argv[3], 0, 0);
break;
default:
data = explain_parse_pointer_or_die(argv[3]);
break;
}
/* Fall through... */
case 3:
addr = explain_parse_pointer_or_die(argv[2]);
/* Fall through... */
case 2:
pid = explain_strtol_or_die(argv[1], 0, 0);
/* Fall through... */
case 1:
break;
default:
goto oops;
}
explain_wrap_and_print
(
stdout,
explain_errno_ptrace(errnum, request, pid, addr, data)
);
}
/* vim: set ts=8 sw=4 et : */
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