/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
* the File Name: ServerHtml. C 
* Created By: chroot 
* Creation Date: 08:43 [2020-11-16] 
* the Last Modified: 09:51 [2020-11-16] 
* Description: the web server for c 
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include 
#include 
#include 
#include 
#include 
#include 
#include 
# define PROT 2000 
Int create_listenfd (void); 
Void headle_request (int fd); 
Int main () 
{
//1, to create a listening socket 
Int sockfd=1, fd=1; 
Struct sockaddr_in server_clie; 
Bzero (& amp; Server_clie, sizeof (server_clie)); 
Socklen_t clie_len=sizeof (server_clie); 
Sockfd=create_listenfd (); 
Printf (" SOCKFD==& gt; % d \ n ", sockfd); 
If (sockfd==1) 
{
Puts (" socket binding failed "); 
While (sockfd!=1) 
{
Puts (" to bind socket "); 
Sockfd=create_listenfd (); 
} 
} 

//2 receive client connection 
While (fd==1) {
Puts (" waiting connection... "); 
Fd=accept (sockfd, (struct sockaddr *) & amp; Server_clie, & amp; Clie_len); 
} 
Perror (" Accept "); 
Puts (" add a user "); 
//3. Handle requests 
Headle_request (fd); 
//3. Handle the client request 
Close (fd); 
Close (sockfd); 
} 
Int create_listenfd (void) 
{
Int fd=socket (AF_INET SOCK_STREAM, 0), rest; 
Struct sockaddr_in sin; 
Bzero (& amp; Sin, sizeof (sin)); 
Sin. Sin_family=AF_INET; 
Sin. Sin_port=htons (PROT); 
Sin. The sin_addr. S_addr=INADDR_ANY; 
For (int prot=prot. (rest=bind (fd, (struct sockaddr *) & amp; Sin, sizeof (sin)))==1; Prot++) 
{
Sin. Sin_port=htons (prot); 
} 
Perror (" Bind "); 

Listen (fd, 100); Perror (" listen "); 
Return fd. 
} 
Void headle_request (int fd) 
{
Char buffer [BUFSIZ]; 
Int nred=read (fd, buffer, sizeof (buffer)); 
Printf (" the client data==& gt; \ n \ n % s ", buffer); 
}