1 /* Return section header. 2 Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 1998. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation, version 2. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program; if not, write to the Free Software Foundation, 16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 17 18 #ifdef HAVE_CONFIG_H 19 # include <config.h> 20 #endif 21 22 #include <gelf.h> 23 #include <string.h> 24 25 #include "libelfP.h" 26 27 28 GElf_Shdr * 29 gelf_getshdr (scn, dst) 30 Elf_Scn *scn; 31 GElf_Shdr *dst; 32 { 33 GElf_Shdr *result = NULL; 34 35 if (scn == NULL) 36 return NULL; 37 38 if (dst == NULL) 39 { 40 __libelf_seterrno (ELF_E_INVALID_OPERAND); 41 return NULL; 42 } 43 44 rwlock_rdlock (scn->elf->lock); 45 46 if (scn->elf->class == ELFCLASS32) 47 { 48 /* Copy the elements one-by-one. */ 49 Elf32_Shdr *shdr = scn->shdr.e32 ?: INTUSE(elf32_getshdr) (scn); 50 51 if (shdr == NULL) 52 { 53 __libelf_seterrno (ELF_E_INVALID_OPERAND); 54 goto out; 55 } 56 57 #define COPY(name) \ 58 dst->name = shdr->name 59 COPY (sh_name); 60 COPY (sh_type); 61 COPY (sh_flags); 62 COPY (sh_addr); 63 COPY (sh_offset); 64 COPY (sh_size); 65 COPY (sh_link); 66 COPY (sh_info); 67 COPY (sh_addralign); 68 COPY (sh_entsize); 69 70 result = dst; 71 } 72 else 73 { 74 Elf64_Shdr *shdr = scn->shdr.e64 ?: INTUSE(elf64_getshdr) (scn); 75 76 if (shdr == NULL) 77 { 78 __libelf_seterrno (ELF_E_INVALID_OPERAND); 79 goto out; 80 } 81 82 /* We only have to copy the data. */ 83 result = memcpy (dst, shdr, sizeof (GElf_Shdr)); 84 } 85 86 out: 87 rwlock_unlock (scn->elf->lock); 88 89 return result; 90 } 91 INTDEF(gelf_getshdr) 92
