1 /* Return number of sections in the ELF file. 2 Copyright (C) 2002 Red Hat, Inc. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 2002. 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 <assert.h> 23 #include <gelf.h> 24 #include <stddef.h> 25 26 #include "libelfP.h" 27 28 29 int 30 elf_getshnum (elf, dst) 31 Elf *elf; 32 size_t *dst; 33 { 34 int result = 0; 35 int idx; 36 37 if (elf == NULL) 38 return -1; 39 40 if (unlikely (elf->kind != ELF_K_ELF)) 41 { 42 __libelf_seterrno (ELF_E_INVALID_HANDLE); 43 return -1; 44 } 45 46 rwlock_rdlock (elf->lock); 47 48 idx = elf->state.elf.scns_last->cnt; 49 if (idx != 0 50 || (elf->state.elf.scns_last 51 != (elf->class == ELFCLASS32 52 || (offsetof (Elf, state.elf32.scns) 53 == offsetof (Elf, state.elf64.scns)) 54 ? &elf->state.elf32.scns : &elf->state.elf64.scns))) 55 /* There is at least one section. */ 56 *dst = 1 + elf->state.elf.scns_last->data[idx - 1].index; 57 else 58 *dst = 0; 59 60 rwlock_unlock (elf->lock); 61 62 return result; 63 } 64 INTDEF(elf_getshnum) 65
