xnu-1456.1.26.tar.gz

[apple/xnu.git] / libkern / kxld / kxld_uuid.c

diff --git a/libkern/kxld/kxld_uuid.c b/libkern/kxld/kxld_uuid.c
new file mode 100644 (file)
index 0000000..ce64c34
--- /dev/null
+++ b/libkern/kxld/kxld_uuid.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2008 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+#include <string.h>
+#include <mach-o/loader.h>
+#include <sys/types.h>
+
+#define DEBUG_ASSERT_COMPONENT_NAME_STRING "kxld"
+#include <AssertMacros.h>
+
+#include "kxld_util.h"
+#include "kxld_uuid.h"
+
+/*******************************************************************************
+*******************************************************************************/
+void
+kxld_uuid_init_from_macho(KXLDuuid *uuid, struct uuid_command *src)
+{
+    check(uuid);
+    check(src);
+
+    memcpy(uuid->uuid, src->uuid, sizeof(uuid->uuid));
+    uuid->has_uuid = TRUE;
+}
+
+/*******************************************************************************
+*******************************************************************************/
+void
+kxld_uuid_clear(KXLDuuid *uuid)
+{
+    bzero(uuid, sizeof(*uuid));
+}
+
+/*******************************************************************************
+*******************************************************************************/
+u_long
+kxld_uuid_get_macho_header_size(void)
+{
+    return sizeof(struct uuid_command);
+}
+
+/*******************************************************************************
+*******************************************************************************/
+kern_return_t
+kxld_uuid_export_macho(const KXLDuuid *uuid, u_char *buf, 
+    u_long *header_offset, u_long header_size)
+{
+    kern_return_t rval = KERN_FAILURE;
+    struct uuid_command *uuidhdr = NULL;
+
+    check(uuid);
+    check(buf);
+    check(header_offset);
+
+    require_action(sizeof(*uuidhdr) <= header_size - *header_offset, finish,
+        rval=KERN_FAILURE);
+    uuidhdr = (struct uuid_command *) (buf + *header_offset);
+    *header_offset += sizeof(*uuidhdr);
+
+    uuidhdr->cmd = LC_UUID;
+    uuidhdr->cmdsize = (uint32_t) sizeof(*uuidhdr);
+    memcpy(uuidhdr->uuid, uuid->uuid, sizeof(uuidhdr->uuid));
+
+    rval = KERN_SUCCESS;
+
+finish:
+    return rval;
+}
+