100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
#include <main.h>
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const char* argp_program_version = "ft_ping 1.0";
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const char* argp_program_bug_address = "<jrathelo@student.42nice.fr>";
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static char doc[] = "Send ICMP ECHO_REQUEST packets to network hosts.\vMandatory or optional arguments to long options "
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"are also mandatory or optional for any corresponding short options.\n\nOptions marked with (root "
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"only) are available only to superuser.";
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static char args_doc[] = "HOST ...";
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static struct argp_option options[] = {
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{0, 0, 0, 0, "Options valid for all request types:\n"},
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{"verbose", 'v', 0, 0, "verbose output"},
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{0},
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};
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struct arguments {
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char* args[1];
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int verbose;
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};
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static error_t parse_opt(int key, char* arg, struct argp_state* state) {
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struct arguments* arguments = state->input;
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switch (key) {
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case 'v':
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arguments->verbose = 1;
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break;
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case ARGP_KEY_ARG:
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if (state->arg_num >= 2)
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argp_usage(state);
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arguments->args[state->arg_num] = arg;
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break;
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case ARGP_KEY_END:
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if (state->arg_num < 1)
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argp_usage(state);
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break;
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default:
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return ARGP_ERR_UNKNOWN;
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}
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return 0;
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}
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static struct argp argp = {options, parse_opt, args_doc, doc};
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static bool stop = false;
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void sig_handler(int sig) {
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if (sig == SIGINT) {
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stop = true;
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} else if (sig == SIGALRM) {
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}
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}
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int main(int argc, char** argv) {
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struct arguments arguments;
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arguments.verbose = 0;
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argp_parse(&argp, argc, argv, 0, 0, &arguments);
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int sock = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
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if (sock < 0) {
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dprintf(STDERR_FILENO, "%s: socket() failed: %s\n", argv[0], strerror(errno));
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exit(1);
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}
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struct sockaddr_in server;
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bzero(&server, sizeof(server));
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server.sin_family = AF_INET;
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if (inet_aton(arguments.args[0], &server.sin_addr) < 1) {
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dprintf(STDERR_FILENO, "%s: unknown host\n", argv[0]);
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close(sock);
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exit(1);
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}
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server.sin_port = htons(0);
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if (bind(sock, (struct sockaddr*)&server, sizeof(server)) < 0) {
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close(sock);
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dprintf(STDERR_FILENO, "%s: bind() failed: %s\n", argv[0], strerror(errno));
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exit(1);
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}
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struct sigaction sig_handle;
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sig_handle.sa_handler = sig_handler;
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sigaction(SIGINT, &sig_handle, 0);
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sigaction(SIGALRM, &sig_handle, 0);
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while (true) {
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if (stop) {
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break;
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}
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}
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printf("---- %s ping statistics ----\n", arguments.args[0]);
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// printf("%d packets transmitted, %d packets received, %d%% packet loss\n");
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// printf("round-trip min/avg/max/stddev = %f/%f/%f/%f ms\n");
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close(sock);
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} |