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- /*
- strptr.c - implementation of the elf_strptr(3) function.
- Copyright (C) 1995 Michael Riepe <riepe@ifwsn4.ifw.uni-hannover.de>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
- #include <private.h>
-
- char*
- elf_strptr(Elf *elf, size_t section, size_t offset) {
- Elf_Scn *scn;
- Elf_Data *sd;
-
- if (!elf) {
- return NULL;
- }
- elf_assert(elf->e_magic == ELF_MAGIC);
- if (!(scn = elf_getscn(elf, section))) {
- return NULL;
- }
- if (scn->s_type != SHT_STRTAB) {
- seterr(ERROR_NOSTRTAB);
- return NULL;
- }
- if (offset >= 0 && offset < scn->s_size) {
- sd = NULL;
- while ((sd = elf_getdata(scn, sd))) {
- if (sd->d_buf && offset >= (size_t)sd->d_off
- && offset < (size_t)sd->d_off + sd->d_size) {
- return (char*)sd->d_buf + (offset - sd->d_off);
- }
- }
- }
- seterr(ERROR_BADSTROFF);
- return NULL;
- }
-