%{

/**

 * Copyright (c) 2012 Red Hat <pmoore@redhat.com>

 * Copyright (c) 2020 Red Hat <gscrivan@redhat.com>

 * Authors: Paul Moore <paul@paul-moore.com>

 *          Giuseppe Scrivano <gscrivan@redhat.com>

 */

/*

 * This library is free software; you can redistribute it and/or modify it

 * under the terms of version 2.1 of the GNU Lesser General Public License as

 * published by the Free Software Foundation.

 *

 * This library 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 Lesser General Public License

 * along with this library; if not, see <http://www.gnu.org/licenses>.

 */

#include <seccomp.h>

#include <string.h>

#include "syscalls.h"

%}

struct arch_syscall_table;

%%

@@SYSCALLS_TABLE@@

%%

static int syscall_get_offset_value(const struct arch_syscall_table *s,

				    int offset)

{

	return *(int *)((char *)s + offset);

}

int syscall_resolve_name(const char *name, int offset)

{

	const struct arch_syscall_table *s;

	s = in_word_set(name, strlen(name));

	if (s == NULL)

		return __NR_SCMP_ERROR;

	return syscall_get_offset_value(s, offset);

}

const char *syscall_resolve_num(int num, int offset)

{

	unsigned int iter;

	for (iter = 0; iter < sizeof(wordlist)/sizeof(wordlist[0]); iter++) {

		if (syscall_get_offset_value(&wordlist[iter], offset) == num)

			return (stringpool + wordlist[iter].name);

	}

	return NULL;

}

const struct arch_syscall_def *syscall_iterate(unsigned int spot, int offset)

{

	unsigned int iter;

        /* this is thread-unsafe, only use for testing */

	static struct arch_syscall_def arch_def;

	arch_def.name = NULL;

	arch_def.num = __NR_SCMP_ERROR;

	for (iter = 0; iter < sizeof(wordlist)/sizeof(wordlist[0]); iter++) {

		if (wordlist[iter].index == spot) {

			arch_def.name = stringpool + wordlist[iter].name;

			arch_def.num = syscall_get_offset_value(&wordlist[iter],

								offset);

			return &arch_def;

		}

	}

	return &arch_def;

}