/**

 * Enhanced Seccomp Architecture Sycall Checker

 *

 * Copyright (c) 2014 Red Hat <pmoore@redhat.com>

 * Author: Paul Moore <paul@paul-moore.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 <errno.h>

#include <stdlib.h>

#include <stdio.h>

#include <ctype.h>

#include <string.h>

#include <unistd.h>

#include <seccomp.h>

#include "arch.h"

#include "arch-x86.h"

#include "arch-x86_64.h"

#include "arch-x32.h"

#include "arch-arm.h"

#include "arch-mips.h"

#include "arch-mips64.h"

#include "arch-mips64n32.h"

#include "arch-aarch64.h"

#include "arch-parisc.h"

#include "arch-ppc.h"

#include "arch-ppc64.h"

#include "arch-s390.h"

#include "arch-s390x.h"

/**

 * Print the usage information to stderr and exit

 * @param program the name of the current program being invoked

 *

 * Print the usage information and exit with EINVAL.

 *

 */

static void exit_usage(const char *program)

{

	fprintf(stderr, "usage: %s [-h] [-a <arch>] [-o <offset>]\n", program);

	exit(EINVAL);

}

/**

 * main

 */

int main(int argc, char *argv[])

{

	int opt;

	const struct arch_def *arch = arch_def_native;

	int offset = 0;

	int iter;

	const struct arch_syscall_def *sys;

	/* parse the command line */

	while ((opt = getopt(argc, argv, "a:o:h")) > 0) {

		switch (opt) {

		case 'a':

			arch = arch_def_lookup_name(optarg);

			if (arch == 0)

				exit_usage(argv[0]);

			break;

		case 'o':

			offset = atoi(optarg);

			break;

		case 'h':

		default:

			/* usage information */

			exit_usage(argv[0]);

		}

	}

	iter = 0;

	do {

		switch (arch->token) {

		case SCMP_ARCH_X86:

			sys = x86_syscall_iterate(iter);

			break;

		case SCMP_ARCH_X86_64:

			sys = x86_64_syscall_iterate(iter);

			break;

		case SCMP_ARCH_X32:

			sys = x32_syscall_iterate(iter);

			break;

		case SCMP_ARCH_ARM:

			sys = arm_syscall_iterate(iter);

			break;

		case SCMP_ARCH_AARCH64:

			sys = aarch64_syscall_iterate(iter);

			break;

		case SCMP_ARCH_MIPS:

		case SCMP_ARCH_MIPSEL:

			sys = mips_syscall_iterate(iter);

			break;

		case SCMP_ARCH_MIPS64:

		case SCMP_ARCH_MIPSEL64:

			sys = mips64_syscall_iterate(iter);

			break;

		case SCMP_ARCH_MIPS64N32:

		case SCMP_ARCH_MIPSEL64N32:

			sys = mips64n32_syscall_iterate(iter);

			break;

		case SCMP_ARCH_PARISC:

		case SCMP_ARCH_PARISC64:

			sys = parisc_syscall_iterate(iter);

			break;

		case SCMP_ARCH_PPC:

			sys = ppc_syscall_iterate(iter);

			break;

		case SCMP_ARCH_PPC64:

		case SCMP_ARCH_PPC64LE:

			sys = ppc64_syscall_iterate(iter);

			break;

		case SCMP_ARCH_S390:

			sys = s390_syscall_iterate(iter);

			break;

		case SCMP_ARCH_S390X:

			sys = s390x_syscall_iterate(iter);

			break;

		default:

			/* invalid arch */

			exit_usage(argv[0]);

		}

		if (sys->name != NULL) {

			int sys_num = sys->num;

			if (offset > 0 && sys_num > 0)

				sys_num -= offset;

			/* output the results */

			printf("%s\t%d\n", sys->name, sys_num);

			/* next */

			iter++;

		}

	} while (sys->name != NULL);

	return 0;

}