Structura tipică a serverului

Structura serverului: fragmentul de cod

int sockfd, newsockfd;
 if ( (sockfd = socket( ... )) < 0) /* create socket */
.....
if ( bind(sockfd,... ) < 0) /* bind socket */
.....
if ( listen(sockfd,5) < 0) /* announce we're ready */
.....
while (1==1) { /* loop forever */
  newsockfd = accept(sockfd, ...); /* wait for client */
  if ( (pid = fork()) == 0) {
     /* child code begins here */
     close(sockfd); /* child doesn't wait for client */
     ......
     /* child does work here, communicating
         with client using the newsockfd */
     .......
     exit(0); /* child dies here */
     }
  /* parent continues execution below */
  close(newsockfd); /* parent won't communicate with */
  /* client - that's childsplay! */
  } /* end of while */