Added libXext

1 files changed, 311 insertions, 0 deletions

diff --git a/libXext/src/XSecurity.c b/libXext/src/XSecurity.c
new file mode 100644
index 000000000..478b06218
--- /dev/null
+++ b/libXext/src/XSecurity.c
@@ -0,0 +1,311 @@
+/* $Xorg: XSecurity.c,v 1.6 2001/02/09 02:03:49 xorgcvs Exp $ */
+/*
+
+Copyright 1996, 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.
+
+*/
+/* $XFree86: xc/lib/Xext/XSecurity.c,v 1.5 2002/10/16 00:37:27 dawes Exp $ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/Xlibint.h>
+#include <stdio.h>
+#include <X11/extensions/Xext.h>
+#include <X11/extensions/extutil.h>
+#include <X11/extensions/securproto.h>
+#include <X11/extensions/security.h>
+
+static XExtensionInfo _Security_info_data;
+static XExtensionInfo *Security_info = &_Security_info_data;
+static char *Security_extension_name = SECURITY_EXTENSION_NAME;
+
+#define SecurityCheckExtension(dpy,i,val) \
+  XextCheckExtension (dpy, i, Security_extension_name, val)
+#define SecuritySimpleCheckExtension(dpy,i) \
+  XextSimpleCheckExtension (dpy, i, Security_extension_name)
+
+#define SecurityGetReq(name,req,info) GetReq (name, req); \
+        req->reqType = info->codes->major_opcode; \
+        req->securityReqType = X_##name;
+
+/*****************************************************************************
+ *                                                                           *
+ *			   private utility routines                          *
+ *                                                                           *
+ *****************************************************************************/
+
+/*
+ * find_display - locate the display info block
+ */
+static int close_display(Display *dpy, XExtCodes *codes);
+static Bool wire_to_event(Display *dpy, XEvent *event, xEvent *wire);
+static Status event_to_wire(Display *dpy, XEvent *event, xEvent *wire);
+static char *error_string(Display *dpy, int code, XExtCodes *codes,
+			  char *buf, int n);
+
+static XExtensionHooks Security_extension_hooks = {
+    NULL,                               /* create_gc */
+    NULL,                               /* copy_gc */
+    NULL,                               /* flush_gc */
+    NULL,                               /* free_gc */
+    NULL,                               /* create_font */
+    NULL,                               /* free_font */
+    close_display,                      /* close_display */
+    wire_to_event,                      /* wire_to_event */
+    event_to_wire,                      /* event_to_wire */
+    NULL,                               /* error */
+    error_string                        /* error_string */
+};
+
+static char    *security_error_list[] = {
+    "BadAuthorization",
+    "BadAuthorizationProtocol"
+};
+
+static XEXT_GENERATE_FIND_DISPLAY (find_display, Security_info,
+				   Security_extension_name,
+				   &Security_extension_hooks,
+				   XSecurityNumberEvents, NULL)
+
+static XEXT_GENERATE_CLOSE_DISPLAY (close_display, Security_info)
+
+static
+XEXT_GENERATE_ERROR_STRING(error_string, Security_extension_name,
+			   XSecurityNumberErrors, security_error_list)
+
+static Bool
+wire_to_event(Display *dpy, XEvent *event, xEvent *wire)
+{
+    XExtDisplayInfo *info = find_display(dpy);
+
+    SecurityCheckExtension (dpy, info, False);
+
+    switch ((wire->u.u.type & 0x7F) - info->codes->first_event)
+    {
+	case XSecurityAuthorizationRevoked:
+	{
+	    xSecurityAuthorizationRevokedEvent *rwire =
+		(xSecurityAuthorizationRevokedEvent *)wire;
+	    XSecurityAuthorizationRevokedEvent *revent =
+		(XSecurityAuthorizationRevokedEvent *)event;
+
+	  revent->type = rwire->type & 0x7F;
+	  revent->serial = _XSetLastRequestRead(dpy,
+						(xGenericReply *) wire);
+	  revent->send_event = (rwire->type & 0x80) != 0;
+	  revent->display = dpy;
+	  revent->auth_id = rwire->authId;
+	  return True;
+	}
+    }
+    return False;
+}
+
+static Status
+event_to_wire(Display *dpy, XEvent *event, xEvent *wire)
+{
+    XExtDisplayInfo *info = find_display(dpy);
+
+    SecurityCheckExtension(dpy, info, False);
+
+    switch ((event->type & 0x7F) - info->codes->first_event)
+    {
+	case XSecurityAuthorizationRevoked:
+	{
+	    xSecurityAuthorizationRevokedEvent *rwire =
+		(xSecurityAuthorizationRevokedEvent *)wire;
+	    XSecurityAuthorizationRevokedEvent *revent =
+		(XSecurityAuthorizationRevokedEvent *)event;
+	    rwire->type = revent->type | (revent->send_event ? 0x80 : 0);
+	    rwire->sequenceNumber = revent->serial & 0xFFFF;
+	    return True;
+	}
+    }
+    return False;
+}
+
+/*****************************************************************************
+ *                                                                           *
+ *		       Security public interfaces                            *
+ *                                                                           *
+ *****************************************************************************/
+
+Status XSecurityQueryExtension (
+    Display *dpy,
+    int *major_version_return,
+    int *minor_version_return)
+{
+    XExtDisplayInfo *info = find_display (dpy);
+    xSecurityQueryVersionReply rep;
+    register xSecurityQueryVersionReq *req;
+
+    if (!XextHasExtension (info))
+        return (Status)0; /* failure */
+
+    LockDisplay (dpy);
+    SecurityGetReq (SecurityQueryVersion, req, info);
+    req->majorVersion = SECURITY_MAJOR_VERSION;
+    req->minorVersion = SECURITY_MINOR_VERSION;
+
+    if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
+	UnlockDisplay (dpy);
+	SyncHandle ();
+	return (Status)0; /* failure */
+    }
+    *major_version_return = rep.majorVersion;
+    *minor_version_return = rep.minorVersion;
+    UnlockDisplay (dpy);
+
+    SyncHandle ();
+
+    if (*major_version_return != SECURITY_MAJOR_VERSION)
+        return (Status)0; /* failure */
+    else
+        return (Status)1; /* success */
+}
+
+Xauth *
+XSecurityAllocXauth(void)
+{
+    return Xcalloc(1, sizeof(Xauth));
+}
+
+void
+XSecurityFreeXauth(Xauth *auth)
+{
+    XFree(auth);
+}
+
+static int
+Ones(Mask mask)
+{
+    register Mask y;
+
+    y = (mask >> 1) &033333333333;
+    y = mask - y - ((y >>1) & 033333333333);
+    return (((y + (y >> 3)) & 030707070707) % 077);
+}
+
+Xauth *
+XSecurityGenerateAuthorization(
+    Display *dpy,
+    Xauth *auth_in,
+    unsigned long valuemask,
+    XSecurityAuthorizationAttributes *attributes,
+    XSecurityAuthorization *auth_id_return)
+{
+    XExtDisplayInfo *info = find_display (dpy);
+    register xSecurityGenerateAuthorizationReq *req;
+    xSecurityGenerateAuthorizationReply rep;
+    Xauth *auth_return;
+    unsigned long values[3];
+    unsigned long *value = values;
+    unsigned int nvalues;
+
+    *auth_id_return = 0;  /* in case we fail */
+
+    /* make sure extension is available */
+
+    SecurityCheckExtension (dpy, info, (Xauth *)NULL);
+
+    LockDisplay(dpy);
+    SecurityGetReq(SecurityGenerateAuthorization, req, info);
+
+    req->nbytesAuthProto = auth_in->name_length;
+    req->nbytesAuthData  = auth_in->data_length;
+
+    /* adjust length to account for auth name and data */
+    req->length += (auth_in->name_length + (unsigned)3) >> 2;
+    req->length += (auth_in->data_length + (unsigned)3) >> 2;
+
+    /* adjust length to account for list of values */
+    req->valueMask = valuemask & XSecurityAllAuthorizationAttributes;
+    nvalues = Ones(req->valueMask);
+    req->length += nvalues;
+
+    /* send auth name and data */
+    Data(dpy, auth_in->name, auth_in->name_length);
+    Data(dpy, auth_in->data, auth_in->data_length);
+
+    /* send values */
+    if (valuemask & XSecurityTimeout)	 *value++ = attributes->timeout;
+    if (valuemask & XSecurityTrustLevel) *value++ = attributes->trust_level;
+    if (valuemask & XSecurityGroup)	 *value++ = attributes->group;
+    if (valuemask & XSecurityEventMask)	 *value++ = attributes->event_mask;
+
+    nvalues <<= 2;
+    Data32(dpy, (long *)values, (long)nvalues);
+
+    if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
+	UnlockDisplay (dpy);
+	SyncHandle ();
+	return (Xauth *)NULL;
+    }
+
+    *auth_id_return = rep.authId;
+
+    /* Allocate space for the Xauth struct and the auth name and data all
+     * in one hunk.  This lets XSecurityFreeXauth not have to care
+     * about whether the auth was allocated here or in
+     * XSecurityAllocXauth; in both cases, you just free one pointer.
+     */
+
+    if ((auth_return = (Xauth *)Xcalloc(1,
+		(sizeof(Xauth) + auth_in->name_length + rep.dataLength))))
+    {
+	auth_return->data_length = rep.dataLength;
+	auth_return->data = (char *)&auth_return[1];
+	_XReadPad(dpy, auth_return->data, (long)rep.dataLength);
+
+	auth_return->name_length = auth_in->name_length;
+	auth_return->name = auth_return->data + auth_return->data_length;
+	memcpy(auth_return->name, auth_in->name, auth_return->name_length);
+    }
+    else
+    {
+	_XEatData(dpy, (unsigned long) (rep.dataLength + 3) & ~3);
+    }
+
+    UnlockDisplay (dpy);
+    SyncHandle ();
+    return auth_return;
+
+} /* XSecurityGenerateAuthorization */
+
+Status
+XSecurityRevokeAuthorization(
+    Display *dpy,
+    XSecurityAuthorization auth_id)
+{
+    XExtDisplayInfo *info = find_display (dpy);
+    xSecurityRevokeAuthorizationReq *req;
+
+    SecurityCheckExtension (dpy, info, 0);
+    LockDisplay(dpy);
+    SecurityGetReq(SecurityRevokeAuthorization, req, info);
+    req->authId = auth_id;
+    UnlockDisplay (dpy);
+    SyncHandle ();
+    return 1;
+} /* XSecurityRevokeAuthorization */