diff options
Diffstat (limited to 'libXdmcp/Unwrap.c')
| -rw-r--r-- | libXdmcp/Unwrap.c | 185 |
1 files changed, 90 insertions, 95 deletions
diff --git a/libXdmcp/Unwrap.c b/libXdmcp/Unwrap.c index 0d60c2bed..feebf98a7 100644 --- a/libXdmcp/Unwrap.c +++ b/libXdmcp/Unwrap.c @@ -1,95 +1,90 @@ -/* - * $Xorg: Unwrap.c,v 1.4 2001/02/09 02:03:48 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/Unwrap.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. - * - * The interface for this routine is quite simple. All three - * arguments are arrays of 8 unsigned characters, the first two - * are 64 bits of useful data, the last is 56 bits of useful - * data packed into 8 bytes, using the low 7 bits of each - * byte, filling the high bit with odd parity. - * - * Examine the XDMCP specification for the correct algorithm - */ - -#include "Wrap.h" - -void -XdmcpUnwrap ( - unsigned char *input, - unsigned char *wrapper, - unsigned char *output, - int bytes) -{ - int i, j, k; - unsigned char tmp[8]; - unsigned char blocks[2][8]; - unsigned char expand_wrapper[8]; - auth_wrapper_schedule schedule; - - _XdmcpWrapperToOddParity (wrapper, expand_wrapper); - _XdmcpAuthSetup (expand_wrapper, schedule); - - k = 0; - for (j = 0; j < bytes; j += 8) - { - if (bytes - j < 8) - return; /* bad input length */ - for (i = 0; i < 8; i++) - blocks[k][i] = input[j + i]; - _XdmcpAuthDoIt ((unsigned char *) (input + j), (unsigned char *) tmp, schedule, 0); - /* block chaining */ - k = (k == 0) ? 1 : 0; - for (i = 0; i < 8; i++) - { - if (j == 0) - output[j + i] = tmp[i]; - else - output[j + i] = tmp[i] ^ blocks[k][i]; - } - } -} - -#endif /* HASXDMAUTH */ +/*
+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
+ */
+
+#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.
+ *
+ * The interface for this routine is quite simple. All three
+ * arguments are arrays of 8 unsigned characters, the first two
+ * are 64 bits of useful data, the last is 56 bits of useful
+ * data packed into 8 bytes, using the low 7 bits of each
+ * byte, filling the high bit with odd parity.
+ *
+ * Examine the XDMCP specification for the correct algorithm
+ */
+
+#include "Wrap.h"
+
+void
+XdmcpUnwrap (
+ unsigned char *input,
+ unsigned char *wrapper,
+ unsigned char *output,
+ int bytes)
+{
+ int i, j, k;
+ unsigned char tmp[8];
+ unsigned char blocks[2][8];
+ unsigned char expand_wrapper[8];
+ auth_wrapper_schedule schedule;
+
+ _XdmcpWrapperToOddParity (wrapper, expand_wrapper);
+ _XdmcpAuthSetup (expand_wrapper, schedule);
+
+ k = 0;
+ for (j = 0; j < bytes; j += 8)
+ {
+ if (bytes - j < 8)
+ return; /* bad input length */
+ for (i = 0; i < 8; i++)
+ blocks[k][i] = input[j + i];
+ _XdmcpAuthDoIt ((unsigned char *) (input + j), (unsigned char *) tmp, schedule, 0);
+ /* block chaining */
+ k = (k == 0) ? 1 : 0;
+ for (i = 0; i < 8; i++)
+ {
+ if (j == 0)
+ output[j + i] = tmp[i];
+ else
+ output[j + i] = tmp[i] ^ blocks[k][i];
+ }
+ }
+}
+
+#endif /* HASXDMAUTH */
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