#include<stdio.h>
#include <sys/socket.h>
#include<string.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <netinet/in.h>
#define TCP_PORT 9999
int main()
{
char ipbuf[32];
char recbuf[0x1000];
pid_t pid;
int socket_ser,socket_accept;
socket_ser = socket(AF_INET,SOCK_STREAM,0);
struct sockaddr_in addr,addr_c;
bzero(&addr,sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(TCP_PORT);
addr.sin_addr.s_addr = htonl(INADDR_ANY);
bind(socket_ser,(struct sockaddr *)&addr,sizeof(addr));
listen(socket_ser,128);
while(1)
{
bzero(ipbuf, sizeof(ipbuf));
bzero(&addr_c,sizeof(addr_c));
bzero(recbuf,sizeof(recbuf));
int len_c;
socket_accept = accept(socket_ser,(struct sockaddr *)&addr_c,(socklen_t *)&len_c);
inet_ntop(AF_INET,&addr_c.sin_addr.s_addr,ipbuf,sizeof(ipbuf));
pid = fork();
if (pid>0)
{
close(socket_accept);
}
else
{
close(socket_ser);
int len = read(socket_accept,recbuf,sizeof(recbuf));
printf("%s\n",recbuf);
write(socket_accept,recbuf,len);
close(socket_accept);
return 0;
}
}
close(socket_ser);
return 0;
}
跟普通的多进程相比没有多少区别,父进程通过fork创建子进程,然后父进程和子进程释放掉跟自己无关的资源即可。