int main(int argc, char **argv) { int ret, verbose = 0, c, opt_index, bypass = 0, decimal = 0; char *file = NULL; setfsuid(getuid()); setfsgid(getgid()); if (argc == 1) help(); while ((c = getopt_long(argc, argv, short_options, long_options, &opt_index)) != EOF) { switch (c) { case 'h': help(); break; case 'v': version(); break; case 'V': verbose = 1; break; case 'D': decimal = 1; break; case 'b': bypass = 1; break; case 'd': bpf_dump_op_table(); die(); case 'i': file = xstrdup(optarg); break; case '?': switch (optopt) { case 'i': panic("Option -%c requires an argument!\n", optopt); default: if (isprint(optopt)) printf("Unknown option character `0x%X\'!\n", optopt); die(); } default: break; } } if (argc == 2) file = xstrdup(argv[1]); if (!file) panic("No Berkeley Packet Filter program specified!\n"); ret = compile_filter(file, verbose, bypass, decimal); xfree(file); return ret; }
int main(int argc, char **argv) { int ret, verbose = 0, c, opt_index, bypass = 0, format = 0; bool invoke_cpp = false; char *file = NULL; setfsuid(getuid()); setfsgid(getgid()); if (argc == 1) help(); while ((c = getopt_long(argc, argv, short_options, long_options, &opt_index)) != EOF) { switch (c) { case 'h': help(); break; case 'v': version(); break; case 'V': verbose = 1; break; case 'p': invoke_cpp = true; break; case 'f': if (!strncmp(optarg, "C", 1) || !strncmp(optarg, "netsniff-ng", 11)) format = 0; else if (!strncmp(optarg, "tcpdump", 7)) format = 2; else if (!strncmp(optarg, "xt_bpf", 6) || !strncmp(optarg, "tc", 2)) format = 1; else help(); break; case 'b': bypass = 1; break; case 'd': bpf_dump_op_table(); die(); case 'i': file = xstrdup(optarg); break; case '?': switch (optopt) { case 'i': case 'f': panic("Option -%c requires an argument!\n", optopt); default: if (isprint(optopt)) printf("Unknown option character `0x%X\'!\n", optopt); die(); } default: break; } } if (argc == 2) file = xstrdup(argv[1]); if (!file) panic("No Berkeley Packet Filter program specified!\n"); ret = compile_filter(file, verbose, bypass, format, invoke_cpp); xfree(file); return ret; }