usr/src/cmd/sgs/libelf/common/getshdr.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #include "libelf.h"
  33 #include "decl.h"
  34 #include "msg.h"
  35
  36
  37 static void *
  38 getshdr(Elf_Scn * scn, int class)
  39 {
  40         void *  rc;
  41         Elf *   elf;
  42         if (scn == 0)
  43                 return (0);
  44         elf = scn->s_elf;
  45         READLOCKS(elf, scn)
  46         if (elf->ed_class != class) {
  47                 READUNLOCKS(elf, scn)
  48                 _elf_seterr(EREQ_CLASS, 0);
  49                 return (0);
  50         }
  51
  52         rc = scn->s_shdr;
  53         READUNLOCKS(elf, scn)
  54         return (rc);
  55 }
  56
  57 Elf32_Shdr *
  58 elf32_getshdr(Elf_Scn * scn)
  59 {
  60         return ((Elf32_Shdr*) getshdr(scn, ELFCLASS32));
  61 }
  62
  63 Elf64_Shdr *
  64 elf64_getshdr(Elf_Scn * scn)
  65 {
  66         return ((Elf64_Shdr*) getshdr(scn, ELFCLASS64));
  67 }