#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <netdb.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
int main(int argc, char *argv[])
{
int sockfd,new_fd;
struct sockaddr_in server_addr;
struct sockaddr_in client_addr;
int sin_size,portnumber;
char hello[]="Hello! Are You allright?/n";
int ret;
if(argc!=2)
{
fprintf(stderr,"Usage:%s portnumber/a/n",argv[0]);
exit(1);
}
if((portnumber=atoi(argv[1]))<0)
{
fprintf(stderr,"Usage:%s portnumber/a/n",argv[0]);
exit(1);
}
if((sockfd=socket(AF_INET,SOCK_STREAM,0))==-1)
{
fprintf(stderr,"Socket error:%s/n/a",strerror(errno));
exit(1);
}
bzero(&server_addr,sizeof(struct sockaddr_in));
server_addr.sin_family=AF_INET;
server_addr.sin_addr.s_addr=htonl(INADDR_ANY);
server_addr.sin_port=htons(portnumber);
if(bind(sockfd,(struct sockaddr *)(&server_addr),sizeof(struct sockaddr))==-1)
{
fprintf(stderr,"Bind error:%s/n/a",strerror(errno));
exit(1);
}
if(listen(sockfd,5)==-1)
{
fprintf(stderr,"Listen error:%s/n/a",strerror(errno));
exit(1);
}
while(1)
{
sin_size=sizeof(struct sockaddr_in);
if((new_fd=accept(sockfd,(struct sockaddr *)(&client_addr),&sin_size))==-1)
{
fprintf(stderr,"Accept error:%s/n/a",strerror(errno));
exit(1);
}
fprintf(stdout,"Server get connection from %s/n",inet_ntoa(client_addr.sin_addr));
char request[1024] = { 0 };
ret = recv( new_fd, request, sizeof( request ), 0 );
fprintf(stdout, "request" );
/**//* whatever we recv, we send 200 response */
{
char content[] = "<head><head><title>index.html</title></head><body>index.html</body>";
char response[512];
sprintf( response, "HTTP/1.1 200 OK/r/nContent-Type: text/html/r/nContent-Length: %d/r/n/r/n%s",
strlen(content), content );
ret = send( new_fd, response, strlen( response ), 0 );
if(ret==-1)
{
fprintf(stderr,"Write Error:%s/n",strerror(errno));
exit(1);
}
}
/* if(send(new_fd,hello,strlen(hello),0)==-1)
{
fprintf(stderr,"Write Error:%s/n",strerror(errno));
exit(1);
} */
// close(new_fd);
}
close(sockfd);
exit(0);
}
编译后执行：
./server port
http://localhost:port/index.html
port自己设定。