81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* main.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: tomoron <tomoron@student.42angouleme.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/04/24 00:03:56 by tomoron #+# #+# */
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/* Updated: 2025/08/15 02:14:40 by tomoron ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "includes/ft_ping.h"
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int g_stop = 0;
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void show_help(t_settings *set)
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{
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set->stop = 1;
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printf("Usage: %s %s", set->name, HELP_MESSAGE);
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}
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int init_socket(char *name)
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{
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int res;
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res = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
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if(res == -1)
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{
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if(errno == EPERM)
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fprintf(stderr, "%s: socket creation permission denied, make sure you are runing as root\n", name);
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else
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fprintf(stderr, "%s: can't initialize socket\n", name);
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return(-1);
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}
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return(res);
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}
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uint16_t get_id(void)
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{
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struct timeval time;
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uint16_t res;
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gettimeofday(&time,0);
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res = (uint8_t)time.tv_sec;
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res |= (uint8_t)time.tv_usec << 8;
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return(res);
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}
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void signal_handler(int signum)
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{
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(void)signum;
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g_stop = 1;
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}
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int main(int argc, char **argv)
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{
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t_settings settings;
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signal(SIGINT, signal_handler);
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settings.name = argv[0];
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if(parse_args(argc, argv, &settings))
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return(1);
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settings.id = get_id();
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if(!settings.err && !settings.stop)
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settings.socket = init_socket(argv[0]);
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if(settings.stop || settings.err || settings.socket == -1)
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{
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if(settings.socket != -1)
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close(settings.socket);
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free_hosts(settings.hosts);
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return((settings.err != 0) * 64);
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}
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send_pings(&settings);
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if(settings.socket != -1)
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close(settings.socket);
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free_hosts(settings.hosts);
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return(0);
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}
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