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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
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Checked in the following released items:
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Diffstat (limited to 'libX11/src/GetProp.c')
-rw-r--r--libX11/src/GetProp.c136
1 files changed, 136 insertions, 0 deletions
diff --git a/libX11/src/GetProp.c b/libX11/src/GetProp.c
new file mode 100644
index 000000000..12c641e3b
--- /dev/null
+++ b/libX11/src/GetProp.c
@@ -0,0 +1,136 @@
+/* $Xorg: GetProp.c,v 1.5 2001/02/09 02:03:33 xorgcvs Exp $ */
+/*
+
+Copyright 1986, 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/X11/GetProp.c,v 1.5 2001/10/28 03:32:30 tsi Exp $ */
+
+#define NEED_REPLIES
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+
+int
+XGetWindowProperty(
+ register Display *dpy,
+ Window w,
+ Atom property,
+ long offset,
+ long length,
+ Bool delete,
+ Atom req_type,
+ Atom *actual_type, /* RETURN */
+ int *actual_format, /* RETURN 8, 16, or 32 */
+ unsigned long *nitems, /* RETURN # of 8-, 16-, or 32-bit entities */
+ unsigned long *bytesafter, /* RETURN */
+ unsigned char **prop) /* RETURN */
+{
+ xGetPropertyReply reply;
+ register xGetPropertyReq *req;
+ xError error;
+
+ LockDisplay(dpy);
+ GetReq (GetProperty, req);
+ req->window = w;
+ req->property = property;
+ req->type = req_type;
+ req->delete = delete;
+ req->longOffset = offset;
+ req->longLength = length;
+ error.sequenceNumber = dpy->request;
+
+ if (!_XReply (dpy, (xReply *) &reply, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return (1); /* not Success */
+ }
+
+ *prop = (unsigned char *) NULL;
+ if (reply.propertyType != None) {
+ long nbytes, netbytes;
+ switch (reply.format) {
+ /*
+ * One extra byte is malloced than is needed to contain the property
+ * data, but this last byte is null terminated and convenient for
+ * returning string properties, so the client doesn't then have to
+ * recopy the string to make it null terminated.
+ */
+ case 8:
+ nbytes = netbytes = reply.nItems;
+ if (nbytes + 1 > 0 &&
+ (*prop = (unsigned char *) Xmalloc ((unsigned)nbytes + 1)))
+ _XReadPad (dpy, (char *) *prop, netbytes);
+ break;
+
+ case 16:
+ nbytes = reply.nItems * sizeof (short);
+ netbytes = reply.nItems << 1;
+ if (nbytes + 1 > 0 &&
+ (*prop = (unsigned char *) Xmalloc ((unsigned)nbytes + 1)))
+ _XRead16Pad (dpy, (short *) *prop, netbytes);
+ break;
+
+ case 32:
+ nbytes = reply.nItems * sizeof (long);
+ netbytes = reply.nItems << 2;
+ if (nbytes + 1 > 0 &&
+ (*prop = (unsigned char *) Xmalloc ((unsigned)nbytes + 1)))
+ _XRead32 (dpy, (long *) *prop, netbytes);
+ break;
+
+ default:
+ /*
+ * This part of the code should never be reached. If it is,
+ * the server sent back a property with an invalid format.
+ * This is a BadImplementation error.
+ */
+ {
+ /* sequence number stored above */
+ error.type = X_Error;
+ error.majorCode = X_GetProperty;
+ error.minorCode = 0;
+ error.errorCode = BadImplementation;
+ _XError(dpy, &error);
+ }
+ nbytes = netbytes = 0L;
+ break;
+ }
+ if (! *prop) {
+ _XEatData(dpy, (unsigned long) netbytes);
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return(BadAlloc); /* not Success */
+ }
+ (*prop)[nbytes] = '\0';
+ }
+ *actual_type = reply.propertyType;
+ *actual_format = reply.format;
+ *nitems = reply.nItems;
+ *bytesafter = reply.bytesAfter;
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return(Success);
+}
+