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07-23-2007
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Bug has developed
Guys there is another bug that has developed.........now messaged above 6 bytes are trimmed and echoed back to client.After the first message the echo is not regular.I have put a loop in both client and server to check for closing.Moreover for connection close i also need to put another clause that if there is a connection break in either server or client the connection should be closed from other side.Below are the server and clinet side codes after connection
Server Code:
while(j!=0)
{
memset(buffer,0,1024);/*clear buffer*/
n = read(newsockfd,buffer,1024);/*read from client*/
if (n < 0) perror("\n ERROR reading from socket \n");/*check for errors*/
len=strlen(buffer);
for(i=0;i<=len;i++)
{
//strcpy(buf1,&buffer[i]);
//strcat(buf1,&buffer[i+1]);
k= strcmp("/",&buffer[i]);
if(k==0)
break;
break;
}
for(p=i;p<=len;p++)
{
j= strcmp("q",&buffer[p]);
if(j==0)
{
close(newsockfd);
close(sockfd);
exit(0);
}
}
puts(buffer);/*print message by client*/
write(newsockfd,"\n Client wrote",14);/*write to client*/
n=write(newsockfd,buffer,sizeof(buffer));/*write to client*/
if(n<0)perror("Write Failed");
}
Code:
while(k!=0)
{
memset(&buf, 0, sizeof(buf));
printf("\n Enter Message for Server");
gets(buf);
rc = write(s, buf,sizeof(buf));
if(rc<0)
{
perror("write failed");
}
/* now that we are connected, start writing to the socket */
/* till write() returns 0, meaning the server closed */
/* the connection. */
len=strlen(buf);
for(i=0;i<=len;i++)
{
//strcpy(b1,&buf[i]);
//strcat(b1,&buf[i+1]);
l= strcmp("/",&buf[i]);
if(l==0)
break;
break;
}
for(p=i;p<=len;p++)
{
k= strcmp("q",&buf[p]);
if(k==0)
{
close(s);
exit (0);
}
}
read(s,buf1,14);
read(s,buf2,1024);
puts(buf1);/*print messages from server*/
puts(buf2);/*print messages from server*/
}
}
Last edited by reborg; 07-23-2007 at 05:03 AM. Reason: code tags 
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07-23-2007
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Very first request please use CODE tags
Code:
n = read(newsockfd,buffer,1024);/*read from client*/
if (n < 0) perror("\n ERROR reading from socket \n");/*check for errors*/
Do you want to continue even when n == 0 Code:
if(k==0) break; break; Code:
if(j==0)
{
close(newsockfd);
close(sockfd);
exit(0);
}
Code:
write(newsockfd,"\n Client wrote",14);/*write to client*/ Code:
n=write(newsockfd,buffer,sizeof(buffer));/*write to client*/
if(n<0)perror("Write Failed");
}
The same pattern where it continues processing even after write call returns a negative value Code:
gets(buf); try to use fgets. 
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