Namonay/ft_ping
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Namonay
2024-09-14 03:12:05 +02:00
parent 995a4acdf7
commit 9712b4e67a
1 changed files with 6 additions and 1 deletions
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7
main.c
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@@ -18,6 +18,10 @@ uint16_t calculate_checksum(uint16_t *data, int len)
return (~checksum); return (~checksum);
} }
void print_packet(struct icmp_header *packet)
{
printf("type : %d code : %d\nchecksum : %d id : %d seq : %d\n", packet->type, packet->code, packet->checksum, packet->id, packet->seq);
}
int ft_ping(int sock, int *seq, struct sockaddr_in src, struct sockaddr_in dst) int ft_ping(int sock, int *seq, struct sockaddr_in src, struct sockaddr_in dst)
{ {
@@ -64,7 +68,8 @@ int ft_ping(int sock, int *seq, struct sockaddr_in src, struct sockaddr_in dst)
printf("%c", data2[i]); printf("%c", data2[i]);
if (icmp_recv_hdr->type != ICMP_ECHOREPLY || icmp_recv_hdr->code != 0) if (icmp_recv_hdr->type != ICMP_ECHOREPLY || icmp_recv_hdr->code != 0)
{ {
printf("%d %d\n", icmp_recv_hdr->type, icmp_recv_hdr->code); print_packet(icmp_recv_hdr);
print_packet(icmp_hdr);
fprintf(stderr, "ERROR : invalid packet received (code)\n"); fprintf(stderr, "ERROR : invalid packet received (code)\n");
return (0); return (0);
} }