diff options
Diffstat (limited to 'libelf/elf_getshnum.c')
| -rw-r--r-- | libelf/elf_getshnum.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/libelf/elf_getshnum.c b/libelf/elf_getshnum.c new file mode 100644 index 00000000..52d6a056 --- /dev/null +++ b/libelf/elf_getshnum.c @@ -0,0 +1,64 @@ +/* Return number of sections in the ELF file. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper <[email protected]>, 2002. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program 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 a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <assert.h> +#include <gelf.h> +#include <stddef.h> + +#include "libelfP.h" + + +int +elf_getshnum (elf, dst) + Elf *elf; + size_t *dst; +{ + int result = 0; + int idx; + + if (elf == NULL) + return -1; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return -1; + } + + rwlock_rdlock (elf->lock); + + idx = elf->state.elf.scns_last->cnt; + if (idx != 0 + || (elf->state.elf.scns_last + != (elf->class == ELFCLASS32 + || (offsetof (Elf, state.elf32.scns) + == offsetof (Elf, state.elf64.scns)) + ? &elf->state.elf32.scns : &elf->state.elf64.scns))) + /* There is at least one section. */ + *dst = 1 + elf->state.elf.scns_last->data[idx - 1].index; + else + *dst = 0; + + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elf_getshnum) |
