chat server error

hi,
i am making a chat server....but the problem is only one way chat occurs....the connection gets lost on the client side....cud u plz let me know where i am going wrong
thanks in advance

Code:

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///  CLIENT 


int main(int argc, char *argv[])
{
        printf("This is the client program\n");

        int sockfd;
        int len, rc ;
        int result;
        struct sockaddr_in address;
        char arr[]={'\0'};
printf("enter the string\n");
gets(arr);

int i;
int length=strlen(arr);
printf("len of the arr is %d\n", length);

 

  //Create socket for client.
        sockfd = socket(AF_INET, SOCK_STREAM, 0);
        if (sockfd == -1) {
                perror("Socket create failed.\n") ;
                return -1 ;
        }
       
        //Name the socket as agreed with server.
        address.sin_family = AF_INET;
        address.sin_addr.s_addr = inet_addr("127.0.0.1");
        address.sin_port = htons(7764);
        len = sizeof(address);

        result = connect(sockfd, (struct sockaddr *)&address, len);
        if(result == -1)
        {
                perror("Error has occurred");
                exit(-1);
        }

       
                //Read and write via sockfd
                rc = write(sockfd, &length, 20);
                printf("write rc = %d\n", rc ) ;
                if (rc == -1)
return -1;
               
                read(sockfd, &length, 20);
                printf("Char from server = %c\n", arr);
                //if (ch == 'A') sleep(5) ;  // pause 5 seconds
       
        close(sockfd);

        exit(0);
}


// SERVER

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <sys/un.h>

int main()
{
 printf("This is the server program\n");
//naming variables
 int server_sockfd, client_sockfd;
int server_len, client_len;
struct sockaddr_in  server_address;
struct sockaddr_in  client_address;
char ch='B';
int result;
int res;
int rc;
// removing old sockets
unlink("server_socket");
server_sockfd=socket(AF_INET,SOCK_STREAM,0);
if (server_sockfd == -1) {
                perror("Socket create failed.\n") ;
                return -1 ;
        }
//naming of socket
server_address.sin_family = AF_INET;
        server_address.sin_addr.s_addr = inet_addr("127.0.0.1");
        server_address.sin_port = htons(7764);
        server_len = sizeof(server_address);

        result = bind(server_sockfd, (struct sockaddr *)&server_address,server_len);
        if(result == -1)
        {
                perror("Error has occurred");
                exit(-1);
        }
res=listen(server_sockfd, 5);
if(res==-1)
{
perror("error");
exit(-1);
}
client_sockfd=accept(server_sockfd,(struct sockaddr *)&client_address,client_len);


read(client_sockfd,&ch,1);
ch++;
while ( ch < 'z') {

                //Read and write via sockfd
                rc = read(client_sockfd, &ch, 1);
                printf("write rc\n", rc ) ;
                if (rc == -1) break ;
               
                write(client_sockfd, &ch, 1);
                printf("Char from server = %c\n", ch);
               
        }
        close(client_sockfd);

        exit(0);
}

---

Code:

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>        char arr[]={'\0'};
> printf("enter the string\n");
> gets(arr);

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How many characters can you store in this array - answer a) 0, b) 1, c) as many as I like

SourceForge.net: Gets - cpwiki

Next, your indentation is so poor that no one really wants to read more than a few lines of it. I spotted the first easy problem and stopped looking.
http://sourceforge.net/apps/mediawik...le=Indentation

Finally, drop the "cud u plz " sms chat
How To Ask Questions The Smart Way
You have a proper keyboard, and almost certainly the ability to have a spell checker in your browser.

Code:

---

    int length=strlen(arr);
...
...
    //Read and write via sockfd
    rc = write(sockfd, &length, 20);
    printf("write rc = %d\n", rc ) ;
    if (rc == -1)
        return -1;
               
    read(sockfd, &length, 20);
    printf("Char from server = %c\n", arr);
    //if (ch == 'A') sleep(5) ;  // pause 5 seconds

---

What documentation are you reading as far as the parameters for read/write?

Normally the second parameter takes the buffer being written:

ssize_t read(int fd, void *buf, size_t count);
ssize_t write(int fd, const void *buf, size_t count);

You are passing the address of an integer as your buffer?

This occurs both in server and client btw...so amazed you got any text(legible) transmitted whatsoever..