Blenderwizard/ft_ping
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This commit is contained in:
Jolan Rathelot
2025-04-03 11:32:28 -04:00
parent e5596c3348
commit b4c24be141
1 changed files with 27 additions and 11 deletions
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38
srcs/main.c
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@ -63,7 +63,7 @@ static bool stop = false;
int sock = 0; int sock = 0;
static struct sockaddr_in destination; static struct sockaddr_in destination = {0};
struct timespec sendt; struct timespec sendt;
@ -146,25 +146,41 @@ int main(int argc, char** argv) {
struct arguments arguments; struct arguments arguments;
int timeout = 3000; int timeout = 3000;
struct timespec recvt; struct timespec recvt;
struct addrinfo hints = {0};
struct addrinfo *res = NULL;
struct pollfd fds[1]; struct pollfd fds[1];
double min = INT32_MAX; double min = INT32_MAX;
double max = 0; double max = 0;
double avg = 0; double avg = 0;
double stddev = 0; double stddev = 0;
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
arguments.verbose = 0; arguments.verbose = 0;
arguments.ttl = 64; arguments.ttl = 64;
argp_parse(&argp, argc, argv, 0, 0, &arguments); argp_parse(&argp, argc, argv, 0, 0, &arguments);
memset(&destination, 0, sizeof(destination)); // memset(&destination, 0, sizeof(destination));
destination.sin_family = AF_INET; char ip_str[INET_ADDRSTRLEN] = {0};
destination.sin_addr.s_addr = inet_addr(arguments.args[0]);
if (destination.sin_addr.s_addr == INADDR_NONE) { int status = getaddrinfo(arguments.args[0], NULL, &hints, &res);
dprintf(sock, "%s: unknown host\n", argv[0]); if (status != 0) {
exit(1); destination.sin_addr.s_addr = inet_addr(arguments.args[0]);
if (destination.sin_addr.s_addr == INADDR_NONE) {
dprintf(STDERR_FILENO, "%s: unknown host\n", argv[0]);
exit(1);
}
destination.sin_family = AF_INET;
destination.sin_port = htons(IPPORT_ECHO);
memcpy(ip_str, arguments.args[0], INET_ADDRSTRLEN);
} else {
memcpy(&destination, res->ai_addr, sizeof(struct sockaddr_in));
destination.sin_family = AF_INET;
destination.sin_port = htons(IPPORT_ECHO);
inet_ntop(res->ai_family, &destination.sin_addr, ip_str, INET_ADDRSTRLEN);
} }
destination.sin_port = htons(IPPORT_ECHO);
sock = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP); sock = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
@ -189,7 +205,7 @@ int main(int argc, char** argv) {
sigaction(SIGINT, &sig_handle, 0); sigaction(SIGINT, &sig_handle, 0);
sigaction(SIGALRM, &sig_handle, 0); sigaction(SIGALRM, &sig_handle, 0);
printf("PING %s (%s): %ld data bytes", arguments.args[0], arguments.args[0], 64 - sizeof(struct icmphdr)); printf("PING %s (%s): %ld data bytes", arguments.args[0], ip_str, 64 - sizeof(struct icmphdr));
if (arguments.verbose) { if (arguments.verbose) {
printf(", id 0x%04x = %u", getpid(), getpid()); printf(", id 0x%04x = %u", getpid(), getpid());
} }
@ -225,7 +241,7 @@ int main(int argc, char** argv) {
icmp_reply->checksum = 0; icmp_reply->checksum = 0;
if (old_checksum != calc_checksum(icmp_reply, bytes_received - (ip_header->ip_hl << 2))) { if (old_checksum != calc_checksum(icmp_reply, bytes_received - (ip_header->ip_hl << 2))) {
dprintf(STDERR_FILENO, "checksum mismatch from %s\n", arguments.args[0]); dprintf(STDERR_FILENO, "checksum mismatch from %s\n", ip_str);
rept++; rept++;
pause(); pause();
continue; continue;
@ -238,7 +254,7 @@ int main(int argc, char** argv) {
tmp += ((double)((recvt.tv_nsec - sendt.tv_nsec) % 1000000) / 1000000.0); tmp += ((double)((recvt.tv_nsec - sendt.tv_nsec) % 1000000) / 1000000.0);
printf("%zd bytes from %s: icmp_seq=%d ttl=%d time=%.3f ms \n", bytes_received - sizeof(struct ip), printf("%zd bytes from %s: icmp_seq=%d ttl=%d time=%.3f ms \n", bytes_received - sizeof(struct ip),
arguments.args[0], icmp_reply->un.echo.sequence, ip_header->ip_ttl, tmp); ip_str, icmp_reply->un.echo.sequence, ip_header->ip_ttl, tmp);
min = (((min) < (tmp)) ? (min) : (tmp)); min = (((min) < (tmp)) ? (min) : (tmp));
max = (((max) > (tmp)) ? (max) : (tmp)); max = (((max) > (tmp)) ? (max) : (tmp));