수다닷컴

서버가 한번 실행되고 죽어서 계속 대기상태로 있게하려고 checkcmd라는 함수 만들고 이 안에서 while문돌리려고 하는데.. 잘 안돼요 ㅠ 도와주세요~~ 서버 소스 입니다~ 부탁드립니다~!!
#include stdio.h
#include winsock2.h
#include stdlib.h
#include string.h
#define BUFSIZE 256
#pragma comment(lib,ws2_32.lib)
void file_send();
void file_open();
void checkcmd( SOCKET CL_socket);
void Connectsvr();
SOCKET CL_socket;
void main()
{
Connectsvr();
file_open();
file_send();
}
void Connectsvr()
{
WSADATA wsa;
SOCKET SV_socket;

SOCKADDR_IN SV_addr;
SOCKADDR_IN CL_addr;
int sz_CLaddr;
char input_port[BUFSIZE];
printf(서버가 사용할 포트번호를 입력하시오 :);
fgets(input_port, BUFSIZE, stdin);

if(WSAStartup(MAKEWORD(2,2), &wsa) !=0)
{
printf(WSAStartup error!\n);
exit(1);
}

SV_socket = socket(AF_INET, SOCK_STREAM,0);
if(SV_socket==INVALID_SOCKET)
{
printf(socket error!\n);
exit(1);
}
memset(&SV_addr,0,sizeof(SV_addr));
SV_addr.sin_family = AF_INET;
SV_addr.sin_addr.s_addr=htonl(INADDR_ANY);
SV_addr.sin_port = htons((unsigned short)atoi(input_port));
if(bind(SV_socket,(SOCKADDR*)&SV_addr,sizeof(SV_addr))==SOCKET_ERROR)
{
printf(bind error!\n);
exit(1);
}
if(listen(SV_socket, 5)==SOCKET_ERROR)
{
printf(listen error!\n);
exit(1);
}
while(1)
{
sz_CLaddr = sizeof(CL_addr);
CL_socket = accept(SV_socket, (SOCKADDR *)&CL_addr,&sz_CLaddr);
if(CL_socket==INVALID_SOCKET)
{
printf(accept error!\n);
exit(1);
}

printf(\n클라이언트 접속);
checkcmd( CL_socket );
}
}
void checkcmd( SOCKET CL_socket)
{
int iRet;
while(1)
{
iRet = recv( CL_socket);
if(iRet = 0 )
{
closesocket(CL_socket);
break;
}
}

}
void file_open()
{
int ms_len;
char message[BUFSIZE];
FILE *fp;
fp=fopen(memo.txt,r);
if(fp==NULL)
{
printf(file open error!\n);
exit(1);
}
while(1)
{
ms_len=fread(message, sizeof(char), BUFSIZE, fp);
send(CL_socket, message, ms_len, 0);
if(feof(fp))
break;
}
fclose(fp);
}
void file_send()
{
int ms_len;
char message[BUFSIZE];

if(shutdown(CL_socket, SD_SEND) == SOCKET_ERROR)
{
printf(shutdown error!\n);
exit(1);
}
ms_len = recv(CL_socket, message, BUFSIZE-1, 0);
message[ms_len]=0;
fputs(message, stdout);
closesocket(CL_socket);
WSACleanup();
}

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