Thread: socket programming issue

hey guys! im struggling for the past couple of days with a socket problem.
im trying to master the basics in order to proceed and integrate this mechanism in my program which is supposed to run on a server.

basically the problem is weird and there's couple of parts to it that i quite cant understand, mainly in the client program.
in my client code i run an infinite while loop with 1 send() and 1 recv() - straightforward and simple; server is supposed to recv() and send() back to the client a string.
but here's what bothers me:
first of all when running client - the server receives only the first message; after that the strings wont be sent..
second - the while loop that is supposed to be infinite - terminates after 3 iterations..

Code:

int main (int argc, char **argv)
{
        int sock;
        struct sockaddr_in cudaserver;
        char buffer[BUFFSIZE];
        unsigned int cudalen;
        int received = 0;
        msg temp_msg;
        
        if ((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
        {
                Die("Failed to create socket");
        }
                 
        memset(&cudaserver, 0, sizeof(cudaserver));     
        cudaserver.sin_family = AF_INET;                  
        cudaserver.sin_addr.s_addr = inet_addr(argv[1]);            
        cudaserver.sin_port = htons(atoi(argv[2]));      
              
        while (connect(sock,(struct sockaddr *) &cudaserver,sizeof(cudaserver)) < 0)
        {
                        Die("Failed to connect with server");
        }

        while (1)
        {
                printf("input the word to send to server\n");
                scanf("%s",&buffer);
                             
                        cudalen = strlen(buffer);
                        if (send(sock, buffer, cudalen, 0) != cudalen)
                        {
                                Die("Mismatch in number of sent bytes");
                        }

                        while (received > 0)
                        {
                                int bytes = 0;
                                if ((bytes = recv(sock, buffer, BUFFSIZE-1, 0)) < 1)
                                {
                                        Die("Failed to receive bytes from server");
                                }
                                received += bytes;
                                buffer[bytes] = '\0';
                                fprintf(stdout, buffer);
                        }
        }
        close (sock);
        exit(0);
}

any help related to this issue would be appreciated

P.S. btw, gdb says that "Program received signal SIGPIPE, Broken pipe." (if that helps anyhow)