FreeBSD/Linux Kernel Cross Reference
sys/libkern/kxld/kxld_uuid.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 *) (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;
    }
    

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