diff options
Diffstat (limited to 'libXdmcp/Array.c')
| -rw-r--r-- | libXdmcp/Array.c | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/libXdmcp/Array.c b/libXdmcp/Array.c new file mode 100644 index 000000000..a9069b09a --- /dev/null +++ b/libXdmcp/Array.c @@ -0,0 +1,247 @@ +/*
+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>
+#include <stdint.h>
+#include <stdlib.h>
+
+/*
+ * This variant of malloc does not return NULL if zero size is passed into.
+ */
+static void *
+xmalloc(size_t size)
+{
+ return malloc(size ? size : 1);
+}
+
+/*
+ * This variant of realloc does not return NULL if zero size is passed into
+ */
+static void *
+xrealloc(void *ptr, size_t size)
+{
+ return realloc(ptr, size ? size : 1);
+}
+
+int
+XdmcpAllocARRAY8 (ARRAY8Ptr array, int length)
+{
+ CARD8Ptr newData;
+
+ /* length defined in ARRAY8 struct is a CARD16 (not CARD8 like the rest) */
+ if (length > UINT16_MAX)
+ return FALSE;
+
+ newData = (CARD8Ptr) xmalloc(length * sizeof (CARD8));
+ if (!newData)
+ return FALSE;
+ array->length = (CARD16) length;
+ array->data = newData;
+ return TRUE;
+}
+
+int
+XdmcpAllocARRAY16 (ARRAY16Ptr array, int length)
+{
+ CARD16Ptr newData;
+
+ /* length defined in ARRAY16 struct is a CARD8 */
+ if (length > UINT8_MAX)
+ return FALSE;
+
+ newData = (CARD16Ptr) xmalloc(length * sizeof (CARD16));
+ if (!newData)
+ return FALSE;
+ array->length = (CARD8) length;
+ array->data = newData;
+ return TRUE;
+}
+
+int
+XdmcpAllocARRAY32 (ARRAY32Ptr array, int length)
+{
+ CARD32Ptr newData;
+
+ /* length defined in ARRAY32 struct is a CARD8 */
+ if (length > UINT8_MAX)
+ return FALSE;
+
+ newData = (CARD32Ptr) xmalloc(length * sizeof (CARD32));
+ if (!newData)
+ return FALSE;
+ array->length = (CARD8) length;
+ array->data = newData;
+ return TRUE;
+}
+
+int
+XdmcpAllocARRAYofARRAY8 (ARRAYofARRAY8Ptr array, int length)
+{
+ ARRAY8Ptr newData;
+
+ /* length defined in ARRAYofARRAY8 struct is a CARD8 */
+ if (length > UINT8_MAX)
+ return FALSE;
+
+ newData = (ARRAY8Ptr) xmalloc(length * sizeof (ARRAY8));
+ if (!newData)
+ return FALSE;
+ array->length = (CARD8) length;
+ array->data = newData;
+ return TRUE;
+}
+
+int
+XdmcpARRAY8Equal (const ARRAY8Ptr array1, const ARRAY8Ptr array2)
+{
+ if (array1->length != array2->length)
+ return FALSE;
+ if (memcmp(array1->data, array2->data, array1->length) != 0)
+ return FALSE;
+ return TRUE;
+}
+
+int
+XdmcpCopyARRAY8 (const ARRAY8Ptr src, ARRAY8Ptr dst)
+{
+ dst->length = src->length;
+ dst->data = (CARD8 *) xmalloc(dst->length * sizeof (CARD8));
+ if (!dst->data)
+ return FALSE;
+ memmove (dst->data, src->data, src->length * sizeof (CARD8));
+ return TRUE;
+}
+
+int
+XdmcpReallocARRAY8 (ARRAY8Ptr array, int length)
+{
+ CARD8Ptr newData;
+
+ /* length defined in ARRAY8 struct is a CARD16 (not CARD8 like the rest) */
+ if (length > UINT16_MAX)
+ return FALSE;
+
+ newData = (CARD8Ptr) xrealloc(array->data, length * sizeof (CARD8));
+ if (!newData)
+ return FALSE;
+ array->length = (CARD16) length;
+ array->data = newData;
+ return TRUE;
+}
+
+int
+XdmcpReallocARRAYofARRAY8 (ARRAYofARRAY8Ptr array, int length)
+{
+ ARRAY8Ptr newData;
+
+ /* length defined in ARRAYofARRAY8 struct is a CARD8 */
+ if (length > UINT8_MAX)
+ return FALSE;
+
+ newData = (ARRAY8Ptr) xrealloc(array->data, length * sizeof (ARRAY8));
+ if (!newData)
+ return FALSE;
+ array->length = (CARD8) length;
+ array->data = newData;
+ return TRUE;
+}
+
+int
+XdmcpReallocARRAY16 (ARRAY16Ptr array, int length)
+{
+ CARD16Ptr newData;
+
+ /* length defined in ARRAY16 struct is a CARD8 */
+ if (length > UINT8_MAX)
+ return FALSE;
+ newData = (CARD16Ptr) xrealloc(array->data, length * sizeof (CARD16));
+ if (!newData)
+ return FALSE;
+ array->length = (CARD8) length;
+ array->data = newData;
+ return TRUE;
+}
+
+int
+XdmcpReallocARRAY32 (ARRAY32Ptr array, int length)
+{
+ CARD32Ptr newData;
+
+ /* length defined in ARRAY32 struct is a CARD8 */
+ if (length > UINT8_MAX)
+ return FALSE;
+
+ newData = (CARD32Ptr) xrealloc(array->data, length * sizeof (CARD32));
+ if (!newData)
+ return FALSE;
+ array->length = (CARD8) length;
+ array->data = newData;
+ return TRUE;
+}
+
+void
+XdmcpDisposeARRAY8 (ARRAY8Ptr array)
+{
+ free(array->data);
+ array->length = 0;
+ array->data = NULL;
+}
+
+void
+XdmcpDisposeARRAY16 (ARRAY16Ptr array)
+{
+ free(array->data);
+ array->length = 0;
+ array->data = NULL;
+}
+
+void
+XdmcpDisposeARRAY32 (ARRAY32Ptr array)
+{
+ free(array->data);
+ array->length = 0;
+ array->data = NULL;
+}
+
+void
+XdmcpDisposeARRAYofARRAY8 (ARRAYofARRAY8Ptr array)
+{
+ int i;
+
+ if (array->data != NULL) {
+ for (i = 0; i < (int)array->length; i++)
+ XdmcpDisposeARRAY8 (&array->data[i]);
+ free(array->data);
+ }
+ array->length = 0;
+ array->data = NULL;
+}
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