serve.c

基于linux平台

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <time.h>
#include <strings.h>
#include <sys/shm.h>

#define SERVER_IP "192.168.0.2"

#define failure(msg)    {printf("\nno:%s",msg);exit(1) ;}
#define success(msg)     printf("\nok:%s \n",msg);

int main()
{
struct sockaddr_in serveraddr;
int listensock,connsock;
const char buff[]="Hello World\r\n";

listensock=socket(AF_INET,SOCK_STREAM,0);
if (listensock==-1) failure("socket")
else success("socket")
bzero((void*)&serveraddr,sizeof(serveraddr));
serveraddr.sin_family=AF_INET;
serveraddr.sin_addr.s_addr=inet_addr(SERVER_IP);
serveraddr.sin_port=htons(13000);

  if(bind(listensock,(struct sockaddr*)&serveraddr,sizeof(serveraddr))!=0)
  failure("bind")
  else success("bind");

  if( listen(listensock,1)!=0) 
  failure("listen")
  else success("listen")

connsock=accept(listensock,NULL,NULL);
send(connsock,buff,sizeof(buff),0);
close(connsock);
close(listensock);
   
}