96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include "Practical.h"
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#include "TCPServerUtility.h"
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static const int MAXPENDING = 5;
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int main(int argc, char **argv) {
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if (argc != 2) {
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DieWithUserMessage("Parameter(s)", "<Server Port>");
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}
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const in_port_t server_port = atoi(argv[1]);
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const int server_sock = socket(AF_INET, SOCK_STREAM, proto_get_num("tcp"));
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if (server_sock < 0) {
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DieWithSystemMessage("socket() failed");
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}
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struct sockaddr_in server_addr = {
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.sin_family = AF_INET,
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.sin_addr = {
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.s_addr = htonl(INADDR_ANY),
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},
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.sin_port = htons(server_port)
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};
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int ret_val = bind(
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server_sock,
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(struct sockaddr *) &server_addr,
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sizeof(server_addr)
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);
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if (ret_val < 0) {
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DieWithSystemMessage("bind() failed");
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}
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ret_val = listen(server_sock, MAXPENDING);
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if (ret_val < 0) {
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DieWithSystemMessage("listen() failed");
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} else {
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char server_name[INET_ADDRSTRLEN];
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const char *ntop_res = inet_ntop(
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AF_INET,
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&server_addr.sin_addr.s_addr,
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server_name,
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sizeof(server_name)
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);
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if (ntop_res != NULL) {
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printf("Listening on %s/%d...\n", server_name, server_port);
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} else {
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puts("Unable to get server address");
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}
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}
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while (1) {
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struct sockaddr_in client_addr;
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socklen_t client_addr_len = sizeof(client_addr);
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int client_sock = accept(
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server_sock,
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(struct sockaddr *) &client_addr,
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&client_addr_len
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);
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if (client_sock < 0) {
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DieWithSystemMessage("accept() failed");
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}
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char client_name[INET_ADDRSTRLEN];
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const char *ntop_res = inet_ntop(
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AF_INET,
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&client_addr.sin_addr.s_addr,
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client_name,
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sizeof(client_name)
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);
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if (ntop_res != NULL) {
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printf(
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"Handling client %s/%d\n",
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client_name,
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ntohs(client_addr.sin_port)
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);
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} else {
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puts("Unable to get client address");
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}
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HandleTCPClient(client_sock);
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}
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return 0;
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}
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