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/**
* Syscall resolver
*
* Copyright (c) 2012 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>
/**
* 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>] [-t] <name>|<number>\n",
program);
exit(EINVAL);
}
/**
* main
*/
int main(int argc, char *argv[])
{
int opt;
int translate = 0;
uint32_t arch;
int sys_num;
const char *sys_name;
arch = seccomp_arch_native();
/* parse the command line */
while ((opt = getopt(argc, argv, "a:ht")) > 0) {
switch (opt) {
case 'a':
arch = seccomp_arch_resolve_name(optarg);
if (arch == 0)
exit_usage(argv[0]);
break;
case 't':
translate = 1;
break;
case 'h':
default:
/* usage information */
exit_usage(argv[0]);
}
}
/* sanity checks */
if (optind >= argc)
exit_usage(argv[0]);
/* perform the syscall lookup */
if (isdigit(argv[optind][0]) || argv[optind][0] == '-') {
sys_num = atoi(argv[optind]);
sys_name = seccomp_syscall_resolve_num_arch(arch, sys_num);
printf("%s\n", (sys_name ? sys_name : "UNKNOWN"));
} else if (translate) {
sys_num = seccomp_syscall_resolve_name_rewrite(arch,
argv[optind]);
printf("%d\n", sys_num);
} else {
sys_num = seccomp_syscall_resolve_name_arch(arch, argv[optind]);
printf("%d\n", sys_num);
}
return 0;
}
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