forked from mirrors/qotd
removed client code and executable, use ncat or similar program to communicate with the server
This commit is contained in:
Arthur-Coppey
@@ -1,8 +0,0 @@
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#include "server.h"
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int main(int argc, char *argv[]) {
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// TODO: shell args
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server(1, 1);
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return 0;
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}
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@@ -1,57 +0,0 @@
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//
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// Created by k0rb4k on 30/03/2021.
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//
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#include "quote.h"
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void getRandomQuote(char quote[2048]) {
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int lineCount;
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long line;
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if ((lineCount = getFileLineCount(QUOTES_FILE)) == -1) {
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puts("file does not exist");
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exit(-1);
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}
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line = random() % lineCount;
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getQuote(line, quote);
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}
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void getQuote(long line, char quote[2048]) {
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FILE* list;
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list = fopen(QUOTES_FILE, "r");
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/*skip lines*/
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while (line > 0) {
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if (fgetc(list) == '\n') {
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line--;
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}
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}
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fgets(quote, 2048, list);
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quote[strlen(quote) - 1] = '\0';
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fclose(list);
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}
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int getFileLineCount(char *filename) {
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char c;
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int lineCount = 0;
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FILE* quotesFile = fopen(filename, "r");
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if (quotesFile == NULL) {
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printf("no quote file found at \"%s\"\n", filename);
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return -1;
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}
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while ((c = (char) fgetc(quotesFile)) != EOF) {
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if (c == '\n') {
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lineCount++;
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}
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}
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fclose(quotesFile);
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return lineCount;
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}
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@@ -1,22 +0,0 @@
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//
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// Created by k0rb4k on 30/03/2021.
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//
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#ifndef QOTD_QUOTE_H
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#define QOTD_QUOTE_H
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <bits/types/FILE.h>
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#include <bits/types/struct_FILE.h>
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#define QUOTES_FILE "./quotes.txt"
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void getRandomQuote(char quote[2048]);
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void getQuote(long line, char quote[2048]);
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int getFileLineCount(char* filename);
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#endif //QOTD_QUOTE_H
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-121
@@ -1,121 +0,0 @@
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//
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// Created by k0rb4k on 30/03/2021.
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//
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#include "server.h"
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//TODO: object-like C
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extern int errno;
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_Noreturn void udpListen(int serverSocket, struct sockaddr * clientAddress, unsigned long addressLength) {
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int recvLen;
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char clientMessage[MESSAGE_STRING_LENGTH], quote[MESSAGE_STRING_LENGTH];
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for (;;) {
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// receive data
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recvLen = recvfrom(serverSocket, clientMessage, MESSAGE_STRING_LENGTH, 0, clientAddress, (socklen_t *) &addressLength);
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perror("recvfrom");
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if (recvLen >= 0) {
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printf("client says: %s\n", clientMessage);
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// send data
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getRandomQuote(quote);
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printf("responding: `%s`\n", quote);
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sendto(serverSocket, quote, strlen(quote), 0, clientAddress, addressLength);
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perror("sendto");
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}
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}
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}
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void tcpListen(int serverSocket, struct sockaddr * clientAddress, unsigned long addressLength) {
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int clientSocket;
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char quote[MESSAGE_STRING_LENGTH] = "", clientMessage[MESSAGE_STRING_LENGTH] = "";
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listen(serverSocket, 5);
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puts("server listening");
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// accept connections
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//TODO: t h r e a d s
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while ((clientSocket = accept(serverSocket, clientAddress, (socklen_t *) &addressLength)) >=
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0) {
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puts("client connected");
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// receive data
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while (recv(clientSocket, clientMessage, MESSAGE_STRING_LENGTH, 0) >= 0) {
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printf("client says: %s\n", clientMessage);
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// send data
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getRandomQuote(quote);
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printf("responding: \"%s\"\n", quote);
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send(clientSocket, quote, strlen(quote), 0);
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}
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puts("client disconnected");
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}
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if (clientSocket < 0) {
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puts("client connection failed");
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exit(3);
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}
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}
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void server(int tcp, int ipv6) {
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int serverSocket, socketType, socketProtocol;
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unsigned long serverAddressLength, clientAddressLength;
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struct sockaddr *serverAddress, *clientAddress;
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struct sockaddr_in serverAddress4, clientAddress4;
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struct sockaddr_in6 serverAddress6, clientAddress6;
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if (ipv6) {
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serverAddress6.sin6_family = AF_INET6;
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serverAddress6.sin6_addr = in6addr_any;
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serverAddress6.sin6_port = htons(17);
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serverAddress = (struct sockaddr *) &serverAddress6;
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serverAddressLength = sizeof serverAddress6;
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clientAddress6.sin6_family = AF_INET6;
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clientAddress = (struct sockaddr *) &clientAddress6;
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clientAddressLength = sizeof clientAddress6;
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} else {
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serverAddress4.sin_family = AF_INET;
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serverAddress4.sin_addr.s_addr = INADDR_ANY;
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serverAddress4.sin_port = htons(17);
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serverAddress = (struct sockaddr *) &serverAddress4;
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serverAddressLength = sizeof serverAddress4;
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clientAddress4.sin_family = AF_INET;
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clientAddress = (struct sockaddr *) &clientAddress4;
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clientAddressLength = sizeof clientAddress4;
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}
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if (tcp) {
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socketType = SOCK_STREAM;
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socketProtocol = IPPROTO_TCP;
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} else {
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socketType = SOCK_DGRAM;
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socketProtocol = IPPROTO_UDP;
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}
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// create sock
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serverSocket = socket(serverAddress->sa_family, socketType, socketProtocol);
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if (serverSocket == -1) {
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puts("socket not created");
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exit(1);
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}
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puts("socket created");
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// bind sock
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if (bind(serverSocket, serverAddress, serverAddressLength) < 0) {
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puts("bind failed");
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exit(2);
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}
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// TODO: threads to run both at the same time
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if (tcp) {
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tcpListen(serverSocket, clientAddress, clientAddressLength);
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} else {
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udpListen(serverSocket, clientAddress, clientAddressLength);
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}
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}
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@@ -1,28 +0,0 @@
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//
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// Created by k0rb4k on 30/03/2021.
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//
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#ifndef QOTD_SERVER_H
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#define QOTD_SERVER_H
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#include <sys/socket.h>
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//#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include "quote.h"
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#define MESSAGE_STRING_LENGTH 2048
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void server(int tcp, int ipv6);
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void tcpServer();
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_Noreturn void udpServer();
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#endif //QOTD_SERVER_H
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