fixed error

client.c

@@ -1,89 +1,31 @@
-/*
-*AUTHOR: Jon Rohan
-*DATE: 2.28.2005
-*TITLE: client.c
-*DESCRIPTION: This program will be specified an IP address in the command line
-*	      and will connect to an already running server. 
-*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <netdb.h>
-#include <sys/types.h>
-#include <netinet/in.h>
-#include <sys/socket.h>
-
-#define PORT 1025 /*This is the port for the client server connection*/
-#define MAXDATASIZE 500 // max number of bytes we can get at once
-
-int main(int argc, char *argv[])
+#include"netinet/in.h"
+#include"sys/socket.h"
+#include"stdio.h"
+main()
 {
-	int sockfd, numbytes;
-	char buf[MAXDATASIZE];
-	struct hostent *he;
-	struct sockaddr_in their_addr; // connector.s address information
-
-	//***************************block of code finds the localhost IP
-	char hostn[400]; //placeholder for the hostname
-	char ipadd[400]; //placeholder for my IP address
-
-	struct hostent *hostIP; //placeholder for the IP address
-
-	//if the gethostname returns a name then the program will get the ip address using gethostbyname
-	if((gethostname(hostn, sizeof(hostn))) == 0) 
-  	{
-		hostIP = gethostbyname(hostn); //the netdb.h function gethostbyname
-  	}
-	else
-	{
-    		printf("ERROR:FC4539 - IP Address not found."); //error if the hostname is not found
-  	}
-	//****************************************************************
-
-
-	if (argc != 2)
-	{
-		fprintf(stderr,"usage: client hostname\n");
-		exit(1);
-	}
-
-	if ((he=gethostbyname(argv[1])) == NULL) 
-	{ // get the host info
-		perror("gethostbyname");
-		exit(1);
-	}
-
-	if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) 
-	{
-		perror("socket");
-		exit(1);
-	}
-
-	their_addr.sin_family = AF_INET; // host byte order
-	their_addr.sin_port = htons(PORT); // short, network byte order
-	their_addr.sin_addr = *((struct in_addr *)he->h_addr);
-	memset(&(their_addr.sin_zero), 0, 8); // zero the rest of the 
-
-	if (connect(sockfd, (struct sockaddr *)&their_addr, sizeof(struct sockaddr)) == -1)
-	{
-		perror("connect");
-		exit(1);
-	}
-
-	if ((numbytes=recv(sockfd, buf, MAXDATASIZE-1, 0)) == -1) 
-	{
-		perror("recv");
-		exit(1);
-	}
-
-	buf[numbytes] = 0;
-	printf("\n\nLocalhost: %s\n", inet_ntoa(*(struct in_addr *)hostIP->h_addr));
-	printf("Local Port: %d\n", PORT);
-	printf("Remote Host: %s\n", inet_ntoa(their_addr.sin_addr));
-	printf("Received daytime data: %s\n",buf);
-	close(sockfd);
-	return 0;
+struct sockaddr_in sa,cli;
+int n,sockfd;
+int len;char buff[100];
+sockfd=socket(AF_INET,SOCK_STREAM,0);
+if(sockfd<0){ printf("\nError in Socket");
+exit(0);
 }
-
+else printf("\nSocket is Opened");
+bzero(&sa,sizeof(sa));
+sa.sin_family=AF_INET;
+sa.sin_port=htons(5600);
+if(connect(sockfd,(struct sockaddr*)&sa,sizeof(sa))<0)
+{
+printf("\nError in connection failed");
+exit(0);
+}
+else
+printf("\nconnected successfully");
+if(n=read(sockfd,buff,sizeof(buff))<0)
+{
+printf("\nError in Reading");
+exit(0);
+}
+else
+{printf("\nMessage Read %s",buff);
+}}

server.c

@@ -1,95 +1,36 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <time.h>
-
-#include <sys/wait.h>
-#include <signal.h>
-#define MYPORT 1025 // the port users will be connecting to
-#define BACKLOG 10 // how many pending connections queue will hold
-void sigchld_handler(int s)
+#include"netinet/in.h"
+#include"sys/socket.h"#include"stdio.h"
+#include"string.h"
+#include"time.h"
+main( )
 {
-	while(wait(NULL) > 0);
+struct sockaddr_in sa;
+struct sockaddr_in cli;int sockfd,conntfd;int len,ch;char str[100];
+time_t tick;
+sockfd=socket(AF_INET,SOCK_STREAM,0);
+if(sockfd<0)
+{
+printf("error in socket\n");
+exit(0);
+}
+else printf("Socket opened");
+bzero(&sa,sizeof(sa));
+sa.sin_port=htons(5600);
+sa.sin_addr.s_addr=htonl(0);
+if(bind(sockfd,(struct sockaddr*)&sa,sizeof(sa))<0)
+{
+printf("Error in binding\n");
 }
-int main(void)
+else
+printf("Binded Successfully");
+listen(sockfd,50);
+for(;;)
 {
-	time_t timer;
-	int sockfd, new_fd; // listen on sock_fd, new connection on new_fd
-	struct sockaddr_in my_addr; // my address information
-	struct sockaddr_in their_addr; // connector.s address information
-	int sin_size;
-	struct sigaction sa;
-	int yes=1;
-	if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
-	 {
-		perror("socket");
-		exit(1);
-	}
-	if (setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,&yes,sizeof(int)) == -1)
-	{
-		perror("setsockopt");
-		exit(1);
-	}
-	my_addr.sin_family = AF_INET; // host byte order
-	my_addr.sin_port = htons(MYPORT); // short, network byte order
-	my_addr.sin_addr.s_addr = INADDR_ANY; // automatically fill with my IP
-	memset(&(my_addr.sin_zero), 0, 8); // zero the rest of the struct
-
-	if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr)) == -1)
-	{
-		perror("bind");
-		exit(1);
-	}
-	if (listen(sockfd, BACKLOG) == -1)
-	{
-		perror("listen");
-		exit(1);
-	}
-	sa.sa_handler = sigchld_handler; // reap all dead processes
-	sigemptyset(&sa.sa_mask);
-	sa.sa_flags = SA_RESTART;
-	if (sigaction(SIGCHLD, &sa, NULL) == -1) 
-	{
-		perror("sigaction");
-		exit(1);
-	}
-	while(1)  // main accept() loop
-	{
-		sin_size = sizeof(struct sockaddr_in);
-		if ((new_fd = accept(sockfd, (struct sockaddr *)&their_addr,&sin_size)) == -1)
-		{
-			//perror("accept");
-			continue;
-		}
-		printf("Received request from Client: %s:%d\n",
-		inet_ntoa(their_addr.sin_addr),MYPORT);
-		if (!fork()) 
-		{ // this is the child process
-			close(sockfd); // child doesn.t need the listener
-			timer = time(NULL);
-			if (send(new_fd, ctime(&timer), 30, 0) == -1)
-			perror("send");
-			close(new_fd);
-			exit(0);
-		}
-	close(new_fd); // parent doesn.t need this
-	}
-	return 0;
+len=sizeof(ch);
+conntfd=accept(sockfd,(struct sockaddr*)&cli,&len);
+printf("Accepted");
+tick=time(NULL);
+snprintf(str,sizeof(str),"%s",ctime(&tick));
+printf("%s",str);write(conntfd,str,100);
 }
-
-
-
-
-
-
-
-
-
-
-
+}