Namonay/ft_ping
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Formatting for better readability

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Namonay
2024-09-16 17:53:45 +00:00
parent 35c0263e1b
commit 9c661d16b6
1 changed files with 40 additions and 35 deletions
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7
main.c
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@@ -20,6 +20,7 @@ uint16_t calculate_checksum(uint16_t *data, int len)
double get_timestamp()
{
struct timeval timestamp;
gettimeofday(&timestamp, NULL);
return (timestamp.tv_sec + (double)timestamp.tv_usec / 1000000);
}
@@ -31,11 +32,13 @@ int ft_ping(int sock, int seq, struct sockaddr_in dst)
memset(data, 0, sizeof(data));
memset(icmp_hdr, 0, sizeof(*icmp_hdr));
icmp_hdr->type = ICMP_ECHO;
icmp_hdr->code = 0;
icmp_hdr->id = getpid();
icmp_hdr->seq = seq;
icmp_hdr->checksum = calculate_checksum((uint16_t *)icmp_hdr, sizeof(icmp_hdr));
if (sendto(sock, data, sizeof(data), 0, (struct sockaddr *)&dst, sizeof(dst)) == -1)
{
fprintf(stderr, "ERROR : sendto() failed\n");
@@ -67,11 +70,12 @@ char *get_ip_by_hostname(char *hostname)
{
struct hostent *he;
struct in_addr **addr_list;
he = gethostbyname(hostname);
he = gethostbyname(hostname);
addr_list = (struct in_addr **)he->h_addr_list;
return (inet_ntoa(*addr_list[0]));
}
int main(int argc, char **argv)
{
int sock;
@@ -81,6 +85,7 @@ int main(int argc, char **argv)
double start;
int n_packet_sent = 0;
int n_packet_recv = 0;
if (argc != 2 || argv[1] == NULL || argv[1][0] == 0)
{
fprintf(stderr, "ERROR : usage : ping {-v?} [ADRESS]\n");