kc3-lang/libressl/crypto/compat/b_win.c

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• Hash : 58fcd3c3
  Author :
  Date : 2014-11-20T00:26:55
  

  Add conditional compilation for windows and posix functions.
  
  This adds a Windows-specific versions of several symbols from libcrypto
  and openssl(1).
  

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• crypto/compat/b_win.c

• /*
   * 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();
  			SYSerr(SYS_F_WSASTARTUP, err);
  			BIOerr(BIO_F_BIO_SOCK_INIT, 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;
  }
  

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