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1/*
2 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
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6 * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
7 *
8 * This file contains Original Code and/or Modifications of Original Code
9 * as defined in and that are subject to the Apple Public Source License
10 * Version 2.0 (the 'License'). You may not use this file except in
11 * compliance with the License. Please obtain a copy of the License at
12 * http://www.opensource.apple.com/apsl/ and read it before using this
13 * file.
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14 *
15 * The Original Code and all software distributed under the License are
f083c6c3 16 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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17 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
18 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
20 * Please see the License for the specific language governing rights and
21 * limitations under the License.
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22 *
23 * @APPLE_LICENSE_HEADER_END@
24 */
25/*
26 * Copyright 1993 NeXT, Inc.
27 * All rights reserved.
28 */
29
30#import "libsa.h"
31
32/*
33 * This routine returns the segment_command structure for the named segment if
34 * it exist in the mach executible it is linked into. Otherwise it returns
35 * zero. It uses the specified mach_header pointer and just looks through the
36 * load commands.
37 */
38struct segment_command *
39getsegbynamefromheader(
40struct mach_header *mhp,
41char *segname)
42{
43 struct segment_command *sgp;
44 long i;
45
46 sgp = (struct segment_command *)
47 ((char *)mhp + sizeof(struct mach_header));
48 for(i = 0; i < mhp->ncmds; i++){
49 if(sgp->cmd == LC_SEGMENT)
50 if(strncmp(sgp->segname, segname, sizeof(sgp->segname)) == 0)
51 return(sgp);
52 sgp = (struct segment_command *)((char *)sgp + sgp->cmdsize);
53 }
54 return((struct segment_command *)0);
55}