119 lines
3.4 KiB
C
119 lines
3.4 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_ping.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: tomoron <tomoron@student.42angouleme.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/04/26 19:54:25 by tomoron #+# #+# */
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/* Updated: 2025/08/22 15:45:44 by tomoron ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "includes/ft_ping.h"
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struct addrinfo *resolve_ip(char *host, t_settings *settings)
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{
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struct addrinfo hints, *result;
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int s;
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struct addrinfo *ret;
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memset(&hints, 0, sizeof(hints));
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ret = 0;
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hints.ai_family = AF_INET;
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hints.ai_socktype = SOCK_STREAM;
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s = getaddrinfo(host, NULL, &hints, &result);
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if (s != 0) {
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fprintf(stderr, "%s: %s\n",settings->name, gai_strerror(s));
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return(ret);
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}
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ret = result;
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if(!ret)
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return(ret);
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ret->ai_next = 0;
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result = result->ai_next;
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freeaddrinfo(result);
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return(ret);
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}
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void ping_start_print(t_settings *set, char *host)
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{
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printf("PING %s (%s): 56 data bytes", host, set->current_ip);
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if(set->verbose)
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printf(", id 0x%04x = %d", set->id, set->id);
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printf("\n");
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}
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void ping_end_print(t_settings *set, char *host, t_stats *stats)
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{
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int percent;
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double stddev;
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if(set->err)
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return;
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(void)set;
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stddev = sqrt(stats->sqr_diff / (stats->received - 1));
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if(isnan(stddev) || isinf(stddev))
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stddev = 0.0f;
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printf("--- %s ping statistics ---\n", host);
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if(stats->sent)
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percent = ((double)(stats->sent - stats->received) / stats->sent) * 100.0;
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else
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percent = 0;
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printf("%lu packets transmitted, %lu packets received, %d%% packet loss\n", stats->sent, stats->received, percent);
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if(stats->received)
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printf("round-trip min/avg/max/stddev = %.3f/%.3f/%.3f/%.3f ms\n", stats->min, stats->avg, stats->max, stddev);
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}
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int ping_host(t_settings *set, char *host)
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{
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uint16_t seq;
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struct addrinfo *info;
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struct timeval last_sent;
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t_waitlist *wl;
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t_waitlist *tmp;
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t_stats stats;
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seq = 0;
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memset(&stats, 0, sizeof(t_stats));
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info = resolve_ip(host, set);
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if(!info)
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return(0);
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last_sent.tv_sec = 0;
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last_sent.tv_usec = 0;
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wl = 0;
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inet_ntop(info->ai_family, (void *)&((struct sockaddr_in *)(info->ai_addr))->sin_addr, set->current_ip, sizeof(set->current_ip));
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ping_start_print(set, host);
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while ((seq < set->count || set->count == 0) && !g_stop)
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{
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tmp = send_icmp(set, info, &seq, &last_sent, &stats);
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if(tmp)
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waitlist_add(&wl, tmp);
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usleep(100);
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receive_icmp(set, &wl, &stats);
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}
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while(wl && !g_stop && timediff(&set->last_send_time) < set->linger)
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receive_icmp(set, &wl, &stats);
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ping_end_print(set, host, &stats);
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freeaddrinfo(info);
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waitlist_free(wl);
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return(1);
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}
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void send_pings(t_settings *set)
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{
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t_host_list *cur;
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cur = set->hosts;
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if(set->setTtl)
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setsockopt(set->socket, IPPROTO_IP, IP_TTL, &set->ttl, sizeof(set->ttl));
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while(cur)
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{
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if(!ping_host(set, cur->host))
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return;
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cur = cur->next;
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}
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}
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