116 lines
2.6 KiB
C
116 lines
2.6 KiB
C
#ifndef FT_PING_H
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# define FT_PING_H
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <byteswap.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <sys/param.h>
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#include <math.h>
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#include <netinet/ip.h>
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#include <fcntl.h>
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#define PACKET_DATA_LENGTH 40
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#define HELP_MESSAGE " [OPTION...] HOST ...\n\
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Send ICMP ECHO_REQUEST packets to network hosts.\n\
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\n\
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-c, --count=N Stop after sending NUMBER packets\n\
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--ttl=N Specify N as time-to-live\n\
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-i, --interval=N Wait N seconds between sending each packet\n\
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-w, --timeout=N Stop after N seconds\n\
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-W, --linger=N Number of seconds to wait for response\n\
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\n\
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-?, --help Give this help list\n"
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extern int g_stop;
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typedef struct s_waitlist
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{
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struct timeval time;
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uint16_t seq;
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struct s_waitlist *next;
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} t_waitlist;
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typedef struct s_host_list
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{
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char *host;
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struct s_host_list *next;
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} t_host_list;
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typedef struct s_settings
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{
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t_host_list *hosts;
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int count; // -c (--count)
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int timeout; // -w (--timeout)
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double interval; //-i (--interval)
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int linger; //-W (--linger)
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int ttl; // --ttl
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short setTtl; // is ttl set
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int socket;
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uint16_t id;
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short stop;
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short err;
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char *name;
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char current_ip[INET_ADDRSTRLEN];
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} t_settings;
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typedef struct s_icmp_echo
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{
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uint8_t type;
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uint8_t code;
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uint16_t checksum;
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uint16_t identifier;
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uint16_t sequence;
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struct timeval time;
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uint8_t data[40];
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} t_icmp_echo;
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typedef struct __attribute__((__packed__))
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{
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struct iphdr header;
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t_icmp_echo icmp;
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} t_icmp_ip_reply;
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typedef struct s_stats
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{
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size_t sent;
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size_t received;
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double min;
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double avg;
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double max;
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double sqr_diff;
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double prev;
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} t_stats;
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t_icmp_echo prepare_icmp_echo(uint16_t sequence, uint16_t identifier);
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int add_host(t_settings *res, char *host);
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void free_hosts(t_host_list *list);
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t_settings parse_args(int argc, char **argv);
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void show_help(t_settings *set, char *name);
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void send_pings(t_settings *set);
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uint16_t calc_checksum(void *ptr, size_t len);
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double timediff(struct timeval *from);
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void waitlist_remove(t_waitlist **lst, uint16_t seq, t_settings *set, t_stats *stats, uint8_t ttl);
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void show_ping_res_line(t_waitlist *cur, t_settings *set, uint16_t seq, t_stats *stats, uint8_t ttl);
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void waitlist_free(t_waitlist *lst);
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t_waitlist *send_icmp(t_settings *set, struct addrinfo *host, uint16_t *seq, struct timeval *last, t_stats *stats);
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void waitlist_add(t_waitlist **waitlist, t_waitlist *elem);
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void receive_icmp(t_settings *set, struct addrinfo *info, t_waitlist **wl, t_stats *stats);
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#endif
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