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Diffstat (limited to 'nx-X11/lib/Xdmcp/Wrap.c')
| -rw-r--r-- | nx-X11/lib/Xdmcp/Wrap.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/nx-X11/lib/Xdmcp/Wrap.c b/nx-X11/lib/Xdmcp/Wrap.c deleted file mode 100644 index d8a032abc..000000000 --- a/nx-X11/lib/Xdmcp/Wrap.c +++ /dev/null @@ -1,133 +0,0 @@ -/* - * $Xorg: Wrap.c,v 1.4 2001/02/09 02:03:49 xorgcvs Exp $ - * - * -Copyright 1989, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from The Open Group. - * * - * Author: Keith Packard, MIT X Consortium - */ - -/* $XFree86: xc/lib/Xdmcp/Wrap.c,v 1.3 2001/01/17 19:42:44 dawes Exp $ */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include <X11/Xos.h> -#include <X11/X.h> -#include <X11/Xmd.h> -#include <X11/Xdmcp.h> - -#ifdef HASXDMAUTH - -/* - * The following function exists only to demonstrate the - * desired functional interface for this routine. You will - * need to add the appropriate algorithm if you wish to - * use XDM-AUTHENTICATION-1/XDM-AUTHORIZATION-1. - * - * Examine the XDMCP specification for the correct algorithm - */ - -#include "Wrap.h" - -void -XdmcpWrap ( - unsigned char *input, - unsigned char *wrapper, - unsigned char *output, - int bytes) -{ - int i, j; - int len; - unsigned char tmp[8]; - unsigned char expand_wrapper[8]; - auth_wrapper_schedule schedule; - - _XdmcpWrapperToOddParity (wrapper, expand_wrapper); - _XdmcpAuthSetup (expand_wrapper, schedule); - for (j = 0; j < bytes; j += 8) - { - len = 8; - if (bytes - j < len) - len = bytes - j; - /* block chaining */ - for (i = 0; i < len; i++) - { - if (j == 0) - tmp[i] = input[i]; - else - tmp[i] = input[j + i] ^ output[j - 8 + i]; - } - for (; i < 8; i++) - { - if (j == 0) - tmp[i] = 0; - else - tmp[i] = 0 ^ output[j - 8 + i]; - } - _XdmcpAuthDoIt (tmp, (output + j), schedule, 1); - } -} - -/* - * Given a 56 bit wrapper in XDMCP format, create a 56 - * bit wrapper in 7-bits + odd parity format - */ - -static int -OddParity (unsigned char c) -{ - c = c ^ (c >> 4); - c = c ^ (c >> 2); - c = c ^ (c >> 1); - return ~c & 0x1; -} - -/* - * Spread the 56 bit wrapper among 8 bytes, using the upper 7 bits - * of each byte, and storing an odd parity bit in the low bit - */ - -void -_XdmcpWrapperToOddParity ( - unsigned char *in, - unsigned char *out) -{ - int ashift, bshift; - int i; - unsigned char c; - - ashift = 7; - bshift = 1; - for (i = 0; i < 7; i++) - { - c = ((in[i] << ashift) | (in[i+1] >> bshift)) & 0x7f; - out[i] = (c << 1) | OddParity (c); - ashift--; - bshift++; - } - c = in[i]; - out[i] = (c << 1) | OddParity(c); -} - -#endif |