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- /*
- cntl.c - implementation of the elf_cntl(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>
-
- int
- elf_cntl(Elf *elf, Elf_Cmd cmd) {
- Elf_Scn *scn;
- Elf *child;
-
- if (!elf) {
- return -1;
- }
- elf_assert(elf->e_magic == ELF_MAGIC);
- if (elf->e_disabled) {
- return 0;
- }
- if (cmd == ELF_C_FDREAD) {
- if (!elf->e_readable) {
- seterr(ERROR_WRONLY);
- return -1;
- }
- if (!elf->e_size) {
- return 0;
- }
- if (!elf->e_ehdr && !_elf_cook(elf)) {
- return -1;
- }
- for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
- if (scn->s_index == SHN_UNDEF || scn->s_type == SHT_NULL) {
- continue;
- }
- else if (!elf_getdata(scn, NULL)) {
- return -1;
- }
- }
- }
- else if (cmd != ELF_C_FDDONE) {
- seterr(ERROR_INVALID_CMD);
- return -1;
- }
- elf->e_disabled = 1;
- for (child = elf->e_members; child; child = child->e_link) {
- elf_assert(elf->e_kind == ELF_K_AR);
- elf_assert(elf == child->e_parent);
- if (elf_cntl(child, cmd)) {
- return -1;
- }
- }
- return 0;
- }
-