54 lines
1.2 KiB
C
Executable file
54 lines
1.2 KiB
C
Executable file
/*
|
|
* Public domain
|
|
*
|
|
* Dongsheng Song <dongsheng.song@gmail.com>
|
|
* Brent Cook <bcook@openbsd.org>
|
|
*/
|
|
|
|
#include <ws2tcpip.h>
|
|
|
|
#include <openssl/bio.h>
|
|
#include <openssl/err.h>
|
|
|
|
int
|
|
BIO_sock_init(void)
|
|
{
|
|
/*
|
|
* WSAStartup loads the winsock .dll and initializes the networking
|
|
* stack on Windows, or simply increases the reference count.
|
|
*/
|
|
static struct WSAData wsa_state = {0};
|
|
WORD version_requested = MAKEWORD(2, 2);
|
|
static int wsa_init_done = 0;
|
|
if (!wsa_init_done) {
|
|
if (WSAStartup(version_requested, &wsa_state) != 0) {
|
|
int err = WSAGetLastError();
|
|
SYSerror(err);
|
|
BIOerror(BIO_R_WSASTARTUP);
|
|
return (-1);
|
|
}
|
|
wsa_init_done = 1;
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
void
|
|
BIO_sock_cleanup(void)
|
|
{
|
|
/*
|
|
* We could call WSACleanup here, but it is easy to get it wrong. Since
|
|
* this API provides no way to even tell if it failed, there is no safe
|
|
* way to expose that functionality here.
|
|
*
|
|
* The cost of leaving the networking DLLs loaded may have been large
|
|
* during the Windows 3.1/win32s era, but it is small in modern
|
|
* contexts, so don't bother.
|
|
*/
|
|
}
|
|
|
|
int
|
|
BIO_socket_nbio(int s, int mode)
|
|
{
|
|
u_long value = mode;
|
|
return ioctlsocket(s, FIONBIO, &value) != SOCKET_ERROR;
|
|
}
|