68 lines
1.7 KiB
C
Executable File
68 lines
1.7 KiB
C
Executable File
/*
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cntl.c - implementation of the elf_cntl(3) function.
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Copyright (C) 1995 Michael Riepe <riepe@ifwsn4.ifw.uni-hannover.de>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <private.h>
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int
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elf_cntl(Elf *elf, Elf_Cmd cmd) {
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Elf_Scn *scn;
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Elf *child;
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if (!elf) {
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return -1;
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}
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elf_assert(elf->e_magic == ELF_MAGIC);
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if (elf->e_disabled) {
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return 0;
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}
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if (cmd == ELF_C_FDREAD) {
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if (!elf->e_readable) {
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seterr(ERROR_WRONLY);
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return -1;
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}
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if (!elf->e_size) {
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return 0;
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}
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if (!elf->e_ehdr && !_elf_cook(elf)) {
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return -1;
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}
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for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
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if (scn->s_index == SHN_UNDEF || scn->s_type == SHT_NULL) {
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continue;
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}
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else if (!elf_getdata(scn, NULL)) {
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return -1;
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}
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}
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}
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else if (cmd != ELF_C_FDDONE) {
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seterr(ERROR_INVALID_CMD);
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return -1;
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}
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elf->e_disabled = 1;
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for (child = elf->e_members; child; child = child->e_link) {
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elf_assert(elf->e_kind == ELF_K_AR);
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elf_assert(elf == child->e_parent);
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if (elf_cntl(child, cmd)) {
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return -1;
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}
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}
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return 0;
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}
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