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- #include <stdio.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <netinet/in.h>
- void doprocessing(int sock){
- char buff[1024];
- read(sock,buff,10000);
- }
- int main( int argc, char *argv[] )
- {
- int sockfd, newsockfd, portno, clilen,pid;
- char buffer[256];
- struct sockaddr_in serv_addr, cli_addr;
- int n;
- /* First call to socket() function */
- sockfd = socket(AF_INET, SOCK_STREAM, 0);
- if (sockfd < 0)
- {
- perror("ERROR opening socket");
- exit(1);
- }
- /* Initialize socket structure */
- bzero((char *) &serv_addr, sizeof(serv_addr));
- portno = 5001;
- serv_addr.sin_family = AF_INET;
- serv_addr.sin_addr.s_addr = INADDR_ANY;
- serv_addr.sin_port = htons(portno);
- /* Now bind the host address using bind() call.*/
- if (bind(sockfd, (struct sockaddr *) &serv_addr,
- sizeof(serv_addr)) < 0)
- {
- perror("ERROR on binding");
- exit(1);
- }
- /* Now start listening for the clients, here
- * process will go in sleep mode and will wait
- * for the incoming connection
- */
- listen(sockfd,5);
- clilen = sizeof(cli_addr);
- while (1)
- {
- newsockfd = accept(sockfd,
- (struct sockaddr *) &cli_addr, &clilen);
- if (newsockfd < 0)
- {
- perror("ERROR on accept");
- exit(1);
- }
- /* Create child process */
- pid = fork();
- if (pid < 0)
- {
- perror("ERROR on fork");
- exit(1);
- }
- if (pid == 0)
- {
- /* This is the client process */
- close(sockfd);
- doprocessing(newsockfd);
- write(newsockfd,"FINE",4);
- exit(0);
- }
- else
- {
- close(newsockfd);
- }
- } /* end of while */
- }
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