SergiyOsadchyy · February 14, 2017 05:11
diff --git a/Linux_Lab_43 b/Linux_Lab_43
 //  Linux_Lab_43
 //
 //  Created by Sergiy on 12.02.17.

 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <netdb.h>
 #include <arpa/inet.h>
 #include <string.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <time.h>
 #include <signal.h>


 void my_signal_handler(int mySignal);

 int main(int argc, const char * argv[])
 {
    struct sockaddr_in server_adr;
    struct sockaddr_in client_adr;
    socklen_t sin_len = sizeof(client_adr);
    int fileDescriptor_server;
    int fileDescriptor_client;
    char buf[2048];
    int on = 1;
    int fileDescriptor_writer;
    char buf_time[32];
    struct tm *mytm;
    time_t myTime;
    char buf_time_writer[32];
    struct tm *mytm_writer;
    time_t myTime_writer;
    char newLine[1] = "\n";
    
    
    fileDescriptor_server = socket(AF_INET, SOCK_STREAM, 0);
    if (fileDescriptor_server < 0)
    {
        perror("socket");
        exit(1);
    }
    
    setsockopt(fileDescriptor_server, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(int));
    
    server_adr.sin_family = AF_INET;
    server_adr.sin_addr.s_addr = INADDR_ANY;
    server_adr.sin_port = htons(8080);
    
    if(bind(fileDescriptor_server, (struct sockaddr *)&server_adr, sizeof(server_adr)) == -1)
    {
        perror("bind");
        close(fileDescriptor_server);
        exit(1);
    }
    
    if (listen(fileDescriptor_server, 10) == -1)
    {
        perror("listen");
        close(fileDescriptor_server);
        exit(1);
    }
    
    while (1)
    {
        fileDescriptor_client = accept(fileDescriptor_server, (struct sockaddr *)&client_adr, &sin_len);
        
        if (fileDescriptor_client == -1)
        {
            perror("Connection failed...\n");
            continue;
        }
        
        printf("\nGot client connection...\n");
        
        //-------
        
        // Get info for webpage text -START-
        
        char *client_IP = inet_ntoa(client_adr.sin_addr);
        int client_port = (int) ntohs(client_adr.sin_port);
        
        myTime = time(NULL);
        mytm = localtime(&myTime);
        memset(buf_time, 0, sizeof(buf_time));
        strftime(buf_time, sizeof(buf_time)-1, "%Y-%m-%d %H:%M:%S", mytm);
        
        // Get info for webpage text -END-
        
        //-------
        
        // Fill webpage -START-
        
        char webpageStart[] =
         "HTTP/1.1 200 OK\r\n"
         "Content-Type: text/html; charset=UTF-8\r\n\r\n"
         "<!DOCTYPE html>\r\n"
         "<html><head><title>Linux_Lab_43</title>\r\n"
         "<style>body { background-color: #FFFF00 }</style></head>"
         "<body><center><h1>";
        
        char webpageText[3000];
        memset(webpageText, 0, sizeof(webpageText));
        snprintf(webpageText, sizeof(webpageText), "IP: %s  Port: %d  Date&time: %s", client_IP, client_port, buf_time);
        
        char webpageEnd[] =
        "</h1><br>\r\n"
        "</center></body></html>\r\n";
        
        char webpage[3000];
        memset(webpage, 0, sizeof(webpage));
        
        snprintf(webpage, sizeof(webpage), "%s%s%s", webpageStart, webpageText, webpageEnd);
        
        // Fill webpage -END-
        
        //-------
        
        // Open file for writing and write time -START-
        
        fileDescriptor_writer = open("/Users/Sergiy/lab43_Writer.txt", O_CREAT | O_WRONLY, 0600);
        if (fileDescriptor_writer == -1)
        {
            printf("Failed to create and open the file.\n");
            exit(1);
        }
        
        myTime_writer = time(NULL);
        mytm_writer = localtime(&myTime_writer);
        memset(buf_time_writer, 0, sizeof(buf_time_writer));
        strftime(buf_time_writer, sizeof(buf_time_writer)-1, "%Y-%m-%d %H:%M:%S", mytm_writer);
        
        char text_writer_Start[3000];
        memset(text_writer_Start, 0, sizeof(text_writer_Start));
        
        snprintf(text_writer_Start, sizeof(text_writer_Start), "Start writing at %s\n", buf_time_writer);
        
        write(fileDescriptor_writer, text_writer_Start, sizeof(text_writer_Start));
        
        // Open file for writing and write time -END-
        
        //---------
         
        if(!fork())
        {
            /* child proccess */
            close(fileDescriptor_server);
            
            memset(buf, 0, 2048);
            
            read(fileDescriptor_client, buf, 2047);
            
            printf("The value of buf is: %s", buf);
            
            //---
            
            // write into writer
            int fileDescriptor_writer_2 = open("/Users/Sergiy/lab43_Writer.txt", O_WRONLY | O_APPEND, 0600);
            
            write(fileDescriptor_writer_2, newLine, sizeof(newLine));
            
            write(fileDescriptor_writer_2, webpageText, sizeof(webpageText)-1);
            
            //---
            
            write(fileDescriptor_client, webpage, sizeof(webpage)-1);
            
            
            close(fileDescriptor_client);
            
            printf("closing client...\n");
            
            exit(0);
        }
        
        /* parent proccess */
        
        signal(SIGTERM, my_signal_handler);
        
        close(fileDescriptor_client);
        close(fileDescriptor_writer);
    }
    
   
    return 0;
 }

 void my_signal_handler(int mySignal)
 {
    printf("\nThere was signal SIGTERM...\n");
    
    int fileDescriptor_writer = open("/Users/Sergiy/lab43_Writer.txt", O_WRONLY | O_APPEND, 0600);
    if (fileDescriptor_writer == -1)
    {
        printf("Failed to create and open the file.\n");
        exit(1);
    }
    
    char buf_time_writer_end[32];
    struct tm *mytm_writer_end;
    time_t myTime_writer_end;
    
    myTime_writer_end = time(NULL);
    mytm_writer_end = localtime(&myTime_writer_end);
    memset(buf_time_writer_end, 0, sizeof(buf_time_writer_end));
    strftime(buf_time_writer_end, sizeof(buf_time_writer_end)-1, "%Y-%m-%d %H:%M:%S", mytm_writer_end);
    
    char text_writer_End[3000];
    memset(text_writer_End, 0, sizeof(text_writer_End));
    
    snprintf(text_writer_End, sizeof(text_writer_End), "\nFinish writing at %s\n", buf_time_writer_end);
    
    write(fileDescriptor_writer, text_writer_End, sizeof(text_writer_End));
    
    close(fileDescriptor_writer);
 }
	// Linux_Lab_43
	//
	// Created by Sergiy on 12.02.17.

	#include <stdio.h>
	#include <stdlib.h>
	#include <unistd.h>
	#include <sys/types.h>
	#include <sys/socket.h>
	#include <netinet/in.h>
	#include <netdb.h>
	#include <arpa/inet.h>
	#include <string.h>
	#include <sys/stat.h>
	#include <fcntl.h>
	#include <time.h>
	#include <signal.h>


	void my_signal_handler(int mySignal);

	int main(int argc, const char * argv[])
	{
	struct sockaddr_in server_adr;
	struct sockaddr_in client_adr;
	socklen_t sin_len = sizeof(client_adr);
	int fileDescriptor_server;
	int fileDescriptor_client;
	char buf[2048];
	int on = 1;
	int fileDescriptor_writer;
	char buf_time[32];
	struct tm *mytm;
	time_t myTime;
	char buf_time_writer[32];
	struct tm *mytm_writer;
	time_t myTime_writer;
	char newLine[1] = "\n";


	fileDescriptor_server = socket(AF_INET, SOCK_STREAM, 0);
	if (fileDescriptor_server < 0)
	{
	perror("socket");
	exit(1);
	}

	setsockopt(fileDescriptor_server, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(int));

	server_adr.sin_family = AF_INET;
	server_adr.sin_addr.s_addr = INADDR_ANY;
	server_adr.sin_port = htons(8080);

	if(bind(fileDescriptor_server, (struct sockaddr *)&server_adr, sizeof(server_adr)) == -1)
	{
	perror("bind");
	close(fileDescriptor_server);
	exit(1);
	}

	if (listen(fileDescriptor_server, 10) == -1)
	{
	perror("listen");
	close(fileDescriptor_server);
	exit(1);
	}

	while (1)
	{
	fileDescriptor_client = accept(fileDescriptor_server, (struct sockaddr *)&client_adr, &sin_len);

	if (fileDescriptor_client == -1)
	{
	perror("Connection failed...\n");
	continue;
	}

	printf("\nGot client connection...\n");

	//-------

	// Get info for webpage text -START-

	char *client_IP = inet_ntoa(client_adr.sin_addr);
	int client_port = (int) ntohs(client_adr.sin_port);

	myTime = time(NULL);
	mytm = localtime(&myTime);
	memset(buf_time, 0, sizeof(buf_time));
	strftime(buf_time, sizeof(buf_time)-1, "%Y-%m-%d %H:%M:%S", mytm);

	// Get info for webpage text -END-

	//-------

	// Fill webpage -START-

	char webpageStart[] =
	"HTTP/1.1 200 OK\r\n"
	"Content-Type: text/html; charset=UTF-8\r\n\r\n"
	"<!DOCTYPE html>\r\n"
	"<html><head><title>Linux_Lab_43</title>\r\n"
	"<style>body { background-color: #FFFF00 }</style></head>"
	"<body><center><h1>";

	char webpageText[3000];
	memset(webpageText, 0, sizeof(webpageText));
	snprintf(webpageText, sizeof(webpageText), "IP: %s Port: %d Date&time: %s", client_IP, client_port, buf_time);

	char webpageEnd[] =
	"</h1><br>\r\n"
	"</center></body></html>\r\n";

	char webpage[3000];
	memset(webpage, 0, sizeof(webpage));

	snprintf(webpage, sizeof(webpage), "%s%s%s", webpageStart, webpageText, webpageEnd);

	// Fill webpage -END-

	//-------

	// Open file for writing and write time -START-

	fileDescriptor_writer = open("/Users/Sergiy/lab43_Writer.txt", O_CREAT \| O_WRONLY, 0600);
	if (fileDescriptor_writer == -1)
	{
	printf("Failed to create and open the file.\n");
	exit(1);
	}

	myTime_writer = time(NULL);
	mytm_writer = localtime(&myTime_writer);
	memset(buf_time_writer, 0, sizeof(buf_time_writer));
	strftime(buf_time_writer, sizeof(buf_time_writer)-1, "%Y-%m-%d %H:%M:%S", mytm_writer);

	char text_writer_Start[3000];
	memset(text_writer_Start, 0, sizeof(text_writer_Start));

	snprintf(text_writer_Start, sizeof(text_writer_Start), "Start writing at %s\n", buf_time_writer);

	write(fileDescriptor_writer, text_writer_Start, sizeof(text_writer_Start));

	// Open file for writing and write time -END-

	//---------

	if(!fork())
	{
	/* child proccess */
	close(fileDescriptor_server);

	memset(buf, 0, 2048);

	read(fileDescriptor_client, buf, 2047);

	printf("The value of buf is: %s", buf);

	//---

	// write into writer
	int fileDescriptor_writer_2 = open("/Users/Sergiy/lab43_Writer.txt", O_WRONLY \| O_APPEND, 0600);

	write(fileDescriptor_writer_2, newLine, sizeof(newLine));

	write(fileDescriptor_writer_2, webpageText, sizeof(webpageText)-1);

	//---

	write(fileDescriptor_client, webpage, sizeof(webpage)-1);


	close(fileDescriptor_client);

	printf("closing client...\n");

	exit(0);
	}

	/* parent proccess */

	signal(SIGTERM, my_signal_handler);

	close(fileDescriptor_client);
	close(fileDescriptor_writer);
	}


	return 0;
	}

	void my_signal_handler(int mySignal)
	{
	printf("\nThere was signal SIGTERM...\n");

	int fileDescriptor_writer = open("/Users/Sergiy/lab43_Writer.txt", O_WRONLY \| O_APPEND, 0600);
	if (fileDescriptor_writer == -1)
	{
	printf("Failed to create and open the file.\n");
	exit(1);
	}

	char buf_time_writer_end[32];
	struct tm *mytm_writer_end;
	time_t myTime_writer_end;

	myTime_writer_end = time(NULL);
	mytm_writer_end = localtime(&myTime_writer_end);
	memset(buf_time_writer_end, 0, sizeof(buf_time_writer_end));
	strftime(buf_time_writer_end, sizeof(buf_time_writer_end)-1, "%Y-%m-%d %H:%M:%S", mytm_writer_end);

	char text_writer_End[3000];
	memset(text_writer_End, 0, sizeof(text_writer_End));

	snprintf(text_writer_End, sizeof(text_writer_End), "\nFinish writing at %s\n", buf_time_writer_end);

	write(fileDescriptor_writer, text_writer_End, sizeof(text_writer_End));

	close(fileDescriptor_writer);
	}