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main.c
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main.c
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#include <unistd.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <string.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include "log.h"
void server_exit(void){
log_printf(INFO, "server退出\n");
exit(-1);
}
int main(void){
int fd = socket(AF_INET , SOCK_STREAM , 0); //创建套接字
if( -1 == fd ){
log_printf(FATAL, "get fd error\n");
server_exit();
}
else{
log_printf(INFO, "fd is %d\n", fd);
}
struct sockaddr_in server_addr;
bzero(&server_addr, sizeof(server_addr));
server_addr.sin_family = AF_INET;
//server_addr.sin_addr.s_addr = htonl(0);
inet_aton("127.0.0.1", &server_addr.sin_addr );
server_addr.sin_port = htons(9000);
int bind_result = bind(fd, (struct sockaddr * ) &server_addr, sizeof(server_addr));
if(0 == bind_result){
log_printf(INFO, "绑定[%s]:%d 成功\n", inet_ntoa(server_addr.sin_addr), ntohs(server_addr.sin_port));
}
else{
log_printf(FATAL, "绑定[%s]:%d 失败\n", inet_ntoa(server_addr.sin_addr), ntohs(server_addr.sin_port));
log_printf(FATAL, "错误码%d\n", bind_result);
server_exit();
}
listen(fd, 10);
struct sockaddr_in client_addr;
bzero(&client_addr, sizeof(client_addr));
socklen_t len = sizeof(client_addr);
for(;;){
int conn_fd = accept(fd, (struct sockaddr *) &client_addr, &len);
if(0 == fork()){
/*child process*/
log_printf(DEBUG, "client[%s]:%d connect success!\n", inet_ntoa(client_addr.sin_addr), ntohs(client_addr.sin_port));
close(conn_fd);
}
else{
/*father process*/
close(conn_fd);
}
}
close(fd);
return 0;
}