수다닷컴

질문 제목 : c언어 소켓 프로그래밍c언어로 소켓 프로그램을 했는데요~
클라이언트 쪽에서 서버쪽으로 1값을 보내면
서버쪽에서 연결을 하고2값을 보내면 파일 전송하고 3값을 보내면 검색을 하는 프로그램을 만들려고 하는데..

에러는 안나는데..send랑 recv랑 잘못 된거 같아요~

질문 내용 :
---------------서버부분-----------------
#include stdio.h
#include winsock2.h
#include stdlib.h
#include string.h
#include malloc.h
#include memory.h
#include sys/stat.h
#define bufsize 256
#pragma comment(lib,ws2_32.lib)
typedef struct _search_str_info
{
intstrcount;
charstrbuffer[bufsize];
}search_str_info;
void serch();
void file_send();
void connect();
void link();
socket cl_socket;
socket sv_socket;
int main(int argc, char** argv)
{
wsadata wsa;
sockaddr_in sv_addr;
if(argc!=2)
{
printf(usage : port\n);
exit(1);
}
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(9190);
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);
}
printf(\nserver start!);
link();

}
void link()
{
int len;
int data;
int cnt=0;

while(1)
{
len = recv(cl_socket,(char *)data,bufsize,0);

if(data==1)
{
connect();

if(cnt==0)
{
printf(\n클라이언트 접속);
cnt++;
}

else
{
printf(\n이미 접속했습니다.);
}
}

else if(data==2)
{
file_send();
}
else if(data==3)
{
serch();
}

else if(data==4)
{
cnt--;
closesocket(cl_socket);
printf(\n접속 종료);
//wsacleanup();
exit(1);
}
}
}
void connect()
{
int sz_claddr;
sockaddr_in cl_addr;
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);
}

}

}

void file_send()
{
int ms_len;
char message[bufsize];
file *fp;
fp=fopen(memo.txt,r);
while(1)
{
ms_len=fread(message, sizeof(char), bufsize,fp);
send(cl_socket,message,ms_len,0);
if(feof(fp))
break;
}
ms_len = recv(cl_socket, message, bufsize-1, 0);
message[ms_len]=0;
fputs(message, stdout);

fclose(fp);
}
void serch()
{
int j=0;
int strcount=1;
int filesize;
int strsize;
int len;
search_str_info * pstrinfo = null;
struct stat filestat;
char * pbuf = null;
char * pfindstr = null;
file *fp = null;
fp = fopen(memo.txt,r);
fstat(fileno(fp), &filestat);
filesize = filestat.st_size;
pbuf = (char *)malloc(filesize + 1);
memset(pbuf, 0, filesize + 1);

fread(pbuf, 1, filesize, fp);
printf(찾을 단어 입력:);
pstrinfo = (search_str_info *)malloc(sizeof(search_str_info) * strcount);
memset(pstrinfo, 0, sizeof(search_str_info) * strcount);
len = recv(cl_socket,(char *)pstrinfo,sizeof (int),0);

strsize = strlen(pstrinfo[j].strbuffer);

pfindstr = pbuf;
while (1)
{
pfindstr = strstr(pfindstr, pstrinfo[j].strbuffer);
if (null == pfindstr)
{
break;
}
else
{
pfindstr += strsize;
++pstrinfo[j].strcount;
}
}

fclose(fp);
printf(============검색결과============\n);
for(j=0; j strcount; j++)
{
printf(%s-%d번\n,pstrinfo[j].strbuffer, pstrinfo[j].strcount);
}

send(cl_socket,(char *)pstrinfo,bufsize,0);
free(pbuf);
}--------클라이언트 부분 ------------------
#include stdio.h
#include winsock2.h
#include stdlib.h
#include string.h
#include malloc.h
#include <lude memory.h
#include sys/stat.h
#define bufsize 256
#pragma comment(lib,ws2_32.lib)
typedef struct _search_str_info
{
intstrcount;
charstrbuffer[bufsize];
}search_str_info;
void end();
void serch();
void file_load();
void connectsvr();
int menuprint();
socket h_socket;
int main()
{
int option;

do
{
system(cls);
option=menuprint();
switch(option)
{
case 1: connectsvr(); break;
case 2: file_load(); break;
case 3: serch(); break;
case 9: end();break;
default:
{
printf(옵션을 잘못 선택 하셨습니다!\n);
printf(아무키나 누르세요...\n);
getchar();
system(cls);
}
}
}while(option!=9);

}

int menuprint()
{
int option=0;
printf(소켓 연결 프로그램 \n\n);
printf( 1. connect\n 2. file load\n 3. serch\n 9. 종료\n);
printf($);
scanf(%d,&option);
fflush(stdin);
return option;
}

void connectsvr()
{

wsadata wsa;

sockaddr_in sv_addr;
char serv_addr[bufsize];
char serv_port[bufsize];
int data=1;

send(h_socket,(char*)data,sizeof(int),0);

system(cls);
printf(====== 1. connect mode ======\n);

printf(연결할 서버 주소를 입력하세요 :);
fgets(serv_addr, bufsize, stdin);

printf(연결할 포트 번호를 입력하세요 :);
fgets(serv_port, bufsize, stdin);

if(wsastartup(makeword(2,2), &wsa) !=0)
{
printf(wsastartup error!\n);
exit(1);
}
h_socket = socket(af_inet, sock_stream,0);
if(h_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=inet_addr(serv_addr);
sv_addr.sin_port = htons((unsigned short)atoi(serv_port));

if(connect(h_socket, (sockaddr*)&sv_addr, sizeof(sv_addr)) ==socket_error)
{
printf(connect error!\n);
exit(1);
}

system(cls);

}
void file_load()
{
file *fp;
int ms_len;
char message[bufsize];
int data=2;
send(h_socket,(char*)data,sizeof(int),0);
system(cls);
printf(====== 2. file down mode ======\n);
fp=fopen(receive.txt,w+);
while((ms_len=recv(h_socket,message, bufsize,0))!=0)
{
fwrite(message, sizeof(char), ms_len,fp);
}
printf(file down ok!\n);
system(pause);
system(cls);

send(h_socket,\nthank you \n,10,0);

fclose(fp);

}
void serch()
{
int j=0;
int strcount=1;
int ms_len;
int data=3;
search_str_info * pstrinfo = null;
char * pbuf = null;
char * pfindstr = null;
send(h_socket,(char*)data,sizeof(int),0);
system(cls);
printf(====== 4. serch mode ======\n);

printf(찾을 단어 입력:);
scanf(%s, pstrinfo[j].strbuffer);
send(h_socket,(char *)pstrinfo,bufsize,0);
printf(============검색결과============\n);
ms_len = recv(h_socket,(char *)pstrinfo,bufsize,0);
system(pause);
system(cls);
}
void end()
{
int data=4;

send(h_socket,(char*)data,sizeof(int),0);
closesocket(h_socket);
wsacleanup();
}

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