gems-kernel/source/THIRDPARTY/xnu/libkern/kxld/kxld_uuid.c
2024-06-03 11:29:39 -05:00

92 lines
3.1 KiB
C

/*
* 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 *) ((void *) (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;
}