83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
#include "sock.h"
|
|
#pragma comment(lib, "ws2_32.lib")
|
|
#ifdef WIN32
|
|
Sock Connect(char *ip,int port){
|
|
if(0 == ip){
|
|
return -1;
|
|
}
|
|
WORD wVersionRequested;
|
|
WSADATA wsaData;
|
|
int err;
|
|
wVersionRequested = MAKEWORD(2,0);
|
|
err = WSAStartup(wVersionRequested,&wsaData);//
|
|
SOCKET ret = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);//create socket
|
|
if(ret < 0){
|
|
printf("error malloc socket%d\r\n",ret);
|
|
exit(0);
|
|
}
|
|
SOCKADDR_IN addrSrv;
|
|
addrSrv.sin_addr.S_un.S_addr = inet_addr(ip);//"49.152.49.84");
|
|
addrSrv.sin_family = AF_INET;
|
|
addrSrv.sin_port = htons(port);
|
|
if(SOCKET_ERROR==connect(ret,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR))){
|
|
closesocket(ret);
|
|
DWORD gle = WSAGetLastError();
|
|
printf("connect socket error code %ld\r\n",gle);
|
|
return -1;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int Send(Sock s,char*dat, int len){
|
|
fd_set wFds;
|
|
FD_ZERO(&wFds);
|
|
FD_SET(s,&wFds);
|
|
|
|
int ret = select(s + 1,0,&wFds,0,0);
|
|
// time expire
|
|
if(ret == 0){
|
|
return 0;
|
|
}else if(ret > 0){
|
|
if(FD_ISSET(s,&wFds)){
|
|
int recv = send(s,dat,len,0);
|
|
if(recv < 0)
|
|
{
|
|
closesocket(s);
|
|
return -2;
|
|
}
|
|
return recv;
|
|
}
|
|
}else{
|
|
printf("error code %d\r\n",ret);
|
|
return -1;
|
|
}
|
|
}
|
|
int Recv(Sock s,char *rec,int len){
|
|
fd_set rFds;
|
|
fd_set eFds;
|
|
FD_ZERO(&rFds);
|
|
FD_SET(s,&rFds);
|
|
|
|
int ret = select(s + 1,&rFds,0,0,0);
|
|
// time expire
|
|
if(ret == 0){
|
|
return 0;
|
|
}else if(ret > 0){
|
|
if(FD_ISSET(s,&rFds)){
|
|
int recvDat = recv(s,rec,len,0);
|
|
if(recvDat <0)
|
|
{
|
|
closesocket(s);
|
|
return -1;
|
|
}
|
|
return recvDat;
|
|
}
|
|
if(FD_ISSET(s,&eFds)){
|
|
closesocket(s);
|
|
return -3;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
#endif
|