Question

I implemented a client-server program that allows to transfer files b/w them. The server is using select() to check changes of sockets.
Every test is good except this one:
– When server is sending a huge file to client (not yet finished), client hit “Ctrl-C” to kill the client program, then the server is killed too 🙁

The snippet:

fprintf(stderr,"Reading done, sending ...\n");
if(send(sockClient, sendBuf, chunk_length, 0) < 0)
{
    printf("Failed to send through socket %d \n", sockClient);
    return -1;
}
fprintf(stderr,"Sending done\n");

When the client is killed, the server terminal displays:

user$./server
Reading done, sending ...
Sending done
Reading done, sending ...
Sending done
Reading done, sending ...
Sending done
Reading done, sending ...
user$

What’s wrong with it?
Thanks for your answers!

Answer 1

You probably want to ignore SIGPIPE. Try adding something like this in your server startup:

#include <signal.h>
signal(SIGPIPE, SIG_IGN);