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#ifdef HAVE_CONFIG_H
# include "config.h"
#endif /* HAVE_CONFIG_H */
#include <errno.h>
#include <direct.h>
# include <sys/time.h>
#ifndef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
#endif
#include <winsock2.h>
#undef WIN32_LEAN_AND_MEAN
#include "evil_private.h"
LONGLONG _evil_time_freq;
LONGLONG _evil_time_count;
/*
* Time related functions
*
*/
double
evil_time_get(void)
{
LARGE_INTEGER count;
QueryPerformanceCounter(&count);
return (double)(count.QuadPart - _evil_time_count)/ (double)_evil_time_freq;
}
/*
* Sockets and pipe related functions
*
*/
int
evil_sockets_init(void)
{
WSADATA wsa_data;
WORD version;
version = MAKEWORD(2, 2);
if (WSAStartup(version, &wsa_data) == 0)
{
if ((LOBYTE(wsa_data.wVersion) == 2) &&
(HIBYTE(wsa_data.wVersion) == 2))
return 1;
else
{
WSACleanup();
return 0;
}
}
return 0;
}
void
evil_sockets_shutdown(void)
{
WSACleanup();
}
/*
* The code of the following functions has been kindly offered
* by Tor Lillqvist.
*/
int
evil_pipe(int *fds)
{
struct sockaddr_in saddr;
SOCKET temp;
SOCKET socket1 = INVALID_SOCKET;
SOCKET socket2 = INVALID_SOCKET;
u_long arg;
fd_set read_set;
fd_set write_set;
int len;
temp = socket (AF_INET, SOCK_STREAM, 0);
if (temp == INVALID_SOCKET)
goto out0;
arg = 1;
if (ioctlsocket (temp, FIONBIO, &arg) == SOCKET_ERROR)
goto out0;
memset (&saddr, 0, sizeof (saddr));
saddr.sin_family = AF_INET;
saddr.sin_port = 0;
saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)))
goto out0;
if (listen (temp, 1) == SOCKET_ERROR)
goto out0;
len = sizeof (saddr);
if (getsockname (temp, (struct sockaddr *)&saddr, &len))
goto out0;
socket1 = socket (AF_INET, SOCK_STREAM, 0);
if (socket1 == INVALID_SOCKET)
goto out0;
arg = 1;
if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
goto out1;
if ((connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR) &&
(WSAGetLastError () != WSAEWOULDBLOCK))
goto out1;
FD_ZERO (&read_set);
FD_SET (temp, &read_set);
if (select (0, &read_set, NULL, NULL, NULL) == SOCKET_ERROR)
goto out1;
if (!FD_ISSET (temp, &read_set))
goto out1;
socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
if (socket2 == INVALID_SOCKET)
goto out1;
FD_ZERO (&write_set);
FD_SET (socket1, &write_set);
if (select (0, NULL, &write_set, NULL, NULL) == SOCKET_ERROR)
goto out2;
if (!FD_ISSET (socket1, &write_set))
goto out2;
arg = 0;
if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
goto out2;
arg = 0;
if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
goto out2;
fds[0] = socket1;
fds[1] = socket2;
closesocket (temp);
return 0;
out2:
closesocket (socket2);
out1:
closesocket (socket1);
out0:
closesocket (temp);
fds[0] = -1;
fds[1] = -1;
return -1;
}
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