72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/*
|
|
cntl.c - implementation of the elf_cntl(3) function.
|
|
Copyright (C) 1995 - 1998 Michael Riepe
|
|
|
|
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#include <private.h>
|
|
|
|
#ifndef lint
|
|
static const char rcsid[] = "@(#) $Id: cntl.c,v 1.7 2008/05/23 08:15:34 michael Exp $";
|
|
#endif /* lint */
|
|
|
|
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 (cmd == ELF_C_FDREAD) {
|
|
if (!elf->e_readable) {
|
|
seterr(ERROR_WRONLY);
|
|
return -1;
|
|
}
|
|
}
|
|
else if (cmd != ELF_C_FDDONE) {
|
|
seterr(ERROR_INVALID_CMD);
|
|
return -1;
|
|
}
|
|
if (elf->e_disabled) {
|
|
return 0;
|
|
}
|
|
if (elf->e_kind == ELF_K_AR) {
|
|
for (child = elf->e_members; child; child = child->e_link) {
|
|
elf_assert(elf == child->e_parent);
|
|
if (elf_cntl(child, cmd)) {
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
else if (elf->e_kind == ELF_K_ELF && cmd == ELF_C_FDREAD) {
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
elf->e_disabled = 1;
|
|
return 0;
|
|
}
|