diff options
Diffstat (limited to 'src/libelf/elf_strptr.c')
| -rw-r--r-- | src/libelf/elf_strptr.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/src/libelf/elf_strptr.c b/src/libelf/elf_strptr.c deleted file mode 100644 index 1f404292..00000000 --- a/src/libelf/elf_strptr.c +++ /dev/null @@ -1,161 +0,0 @@ -/* Return string pointer from string section. - Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2008, 2009 Red Hat, Inc. - This file is part of elfutils. - Contributed by Ulrich Drepper <drepper@redhat.com>, 1998. - - This file is free software; you can redistribute it and/or modify - it under the terms of either - - * the GNU Lesser General Public License as published by the Free - Software Foundation; either version 3 of the License, or (at - your option) any later version - - or - - * the GNU General Public License as published by the Free - Software Foundation; either version 2 of the License, or (at - your option) any later version - - or both in parallel, as here. - - elfutils 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 - General Public License for more details. - - You should have received copies of the GNU General Public License and - the GNU Lesser General Public License along with this program. If - not, see <http://www.gnu.org/licenses/>. */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include <libelf.h> -#include <stddef.h> - -#include "libelfP.h" - - -char * -elf_strptr (elf, idx, offset) - Elf *elf; - size_t idx; - size_t offset; -{ - if (elf == NULL) - return NULL; - - if (elf->kind != ELF_K_ELF) - { - __libelf_seterrno (ELF_E_INVALID_HANDLE); - return NULL; - } - - rwlock_rdlock (elf->lock); - - char *result = NULL; - Elf_Scn *strscn; - - /* Find the section in the list. */ - Elf_ScnList *runp = (elf->class == ELFCLASS32 - || (offsetof (struct Elf, state.elf32.scns) - == offsetof (struct Elf, state.elf64.scns)) - ? &elf->state.elf32.scns : &elf->state.elf64.scns); - while (1) - { - if (idx < runp->max) - { - if (idx < runp->cnt) - strscn = &runp->data[idx]; - else - { - __libelf_seterrno (ELF_E_INVALID_INDEX); - goto out; - } - break; - } - - idx -= runp->max; - - runp = runp->next; - if (runp == NULL) - { - __libelf_seterrno (ELF_E_INVALID_INDEX); - goto out; - } - } - - if (elf->class == ELFCLASS32) - { - if (unlikely (strscn->shdr.e32->sh_type != SHT_STRTAB)) - { - /* This is no string section. */ - __libelf_seterrno (ELF_E_INVALID_SECTION); - goto out; - } - - if (unlikely (offset >= strscn->shdr.e32->sh_size)) - { - /* The given offset is too big, it is beyond this section. */ - __libelf_seterrno (ELF_E_OFFSET_RANGE); - goto out; - } - } - else - { - if (unlikely (strscn->shdr.e64->sh_type != SHT_STRTAB)) - { - /* This is no string section. */ - __libelf_seterrno (ELF_E_INVALID_SECTION); - goto out; - } - - if (unlikely (offset >= strscn->shdr.e64->sh_size)) - { - /* The given offset is too big, it is beyond this section. */ - __libelf_seterrno (ELF_E_OFFSET_RANGE); - goto out; - } - } - - if (strscn->rawdata_base == NULL && ! strscn->data_read) - { - rwlock_unlock (elf->lock); - rwlock_wrlock (elf->lock); - if (strscn->rawdata_base == NULL && ! strscn->data_read - /* Read the section data. */ - && __libelf_set_rawdata_wrlock (strscn) != 0) - goto out; - } - - if (likely (strscn->rawdata_base != NULL)) - // XXX Is this correct if a file is read and then new data is added - // XXX to the string section? Likely needs to check offset against - // XXX size of rawdata_base buffer and then iterate over rest of the - // XXX list. - result = &strscn->rawdata_base[offset]; - else - { - /* This is a file which is currently created. Use the list of - data blocks. */ - struct Elf_Data_List *dl = &strscn->data_list; - while (dl != NULL) - { - if (offset >= (size_t) dl->data.d.d_off - && offset < dl->data.d.d_off + dl->data.d.d_size) - { - result = (char *) dl->data.d.d_buf + (offset - dl->data.d.d_off); - break; - } - - dl = dl->next; - } - } - - out: - rwlock_unlock (elf->lock); - - return result; -} -INTDEF(elf_strptr) |