projects / linux-seccomp.git / blame
| Commit | Line | Data |
|---|---|---|
| 8befd5cc MG |
1 | /** |
| 2 | * Syscall resolver | |
| 3 | * | |
| 4 | * Copyright (c) 2012 Red Hat <pmoore@redhat.com> | |
| 5 | * Author: Paul Moore <paul@paul-moore.com> | |
| 6 | */ | |
| 7 | ||
| 8 | /* | |
| 9 | * This library is free software; you can redistribute it and/or modify it | |
| 10 | * under the terms of version 2.1 of the GNU Lesser General Public License as | |
| 11 | * published by the Free Software Foundation. | |
| 12 | * | |
| 13 | * This library is distributed in the hope that it will be useful, but WITHOUT | |
| 14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License | |
| 16 | * for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU Lesser General Public License | |
| 19 | * along with this library; if not, see <http://www.gnu.org/licenses>. | |
| 20 | */ | |
| 21 | ||
| 22 | #include <errno.h> | |
| 23 | #include <stdlib.h> | |
| 24 | #include <stdio.h> | |
| 25 | #include <ctype.h> | |
| 26 | #include <string.h> | |
| 27 | #include <unistd.h> | |
| 28 | ||
| 29 | #include <seccomp.h> | |
| 30 | ||
| 31 | /** | |
| 32 | * Print the usage information to stderr and exit | |
| 33 | * @param program the name of the current program being invoked | |
| 34 | * | |
| 35 | * Print the usage information and exit with EINVAL. | |
| 36 | * | |
| 37 | */ | |
| 38 | static void exit_usage(const char *program) | |
| 39 | { | |
| 40 | fprintf(stderr, | |
| 41 | "usage: %s [-h] [-a <arch>] [-t] <name>|<number>\n", | |
| 42 | program); | |
| 43 | exit(EINVAL); | |
| 44 | } | |
| 45 | ||
| 46 | /** | |
| 47 | * main | |
| 48 | */ | |
| 49 | int main(int argc, char *argv[]) | |
| 50 | { | |
| 51 | int opt; | |
| 52 | int translate = 0; | |
| 53 | uint32_t arch; | |
| 54 | int sys_num; | |
| 55 | const char *sys_name; | |
| 56 | ||
| 57 | arch = seccomp_arch_native(); | |
| 58 | ||
| 59 | /* parse the command line */ | |
| 60 | while ((opt = getopt(argc, argv, "a:ht")) > 0) { | |
| 61 | switch (opt) { | |
| 62 | case 'a': | |
| 63 | arch = seccomp_arch_resolve_name(optarg); | |
| 64 | if (arch == 0) | |
| 65 | exit_usage(argv[0]); | |
| 66 | break; | |
| 67 | case 't': | |
| 68 | translate = 1; | |
| 69 | break; | |
| 70 | case 'h': | |
| 71 | default: | |
| 72 | /* usage information */ | |
| 73 | exit_usage(argv[0]); | |
| 74 | } | |
| 75 | } | |
| 76 | ||
| 77 | /* sanity checks */ | |
| 78 | if (optind >= argc) | |
| 79 | exit_usage(argv[0]); | |
| 80 | ||
| 81 | /* perform the syscall lookup */ | |
| 82 | if (isdigit(argv[optind][0]) || argv[optind][0] == '-') { | |
| 83 | sys_num = atoi(argv[optind]); | |
| 84 | sys_name = seccomp_syscall_resolve_num_arch(arch, sys_num); | |
| 85 | printf("%s\n", (sys_name ? sys_name : "UNKNOWN")); | |
| 86 | } else if (translate) { | |
| 87 | sys_num = seccomp_syscall_resolve_name_rewrite(arch, | |
| 88 | argv[optind]); | |
| 89 | printf("%d\n", sys_num); | |
| 90 | } else { | |
| 91 | sys_num = seccomp_syscall_resolve_name_arch(arch, argv[optind]); | |
| 92 | printf("%d\n", sys_num); | |
| 93 | } | |
| 94 | ||
| 95 | return 0; | |
| 96 | } |