|
|
/*
|
|
|
* verneed.h - copy versioning information.
|
|
|
* Copyright (C) 2001 - 2006 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
|
|
|
*/
|
|
|
|
|
|
#ifndef lint
|
|
|
static const char verneed_h_rcsid[] = "@(#) $Id: verneed.h,v 1.13 2008/05/23 08:15:35 michael Exp $";
|
|
|
#endif /* lint */
|
|
|
|
|
|
#if VER_NEED_CURRENT != 1
|
|
|
#error libelf currently does not support VER_NEED_CURRENT != 1
|
|
|
#endif /* VER_NEED_CURRENT != 1 */
|
|
|
|
|
|
#if TOFILE
|
|
|
|
|
|
static void
|
|
|
__store_vernaux(vernaux_ftype *dst, const vernaux_mtype *src, unsigned enc) {
|
|
|
if (enc == ELFDATA2LSB) {
|
|
|
__store_u32L(dst->vna_hash, src->vna_hash);
|
|
|
__store_u16L(dst->vna_flags, src->vna_flags);
|
|
|
__store_u16L(dst->vna_other, src->vna_other);
|
|
|
__store_u32L(dst->vna_name, src->vna_name);
|
|
|
__store_u32L(dst->vna_next, src->vna_next);
|
|
|
}
|
|
|
else {
|
|
|
__store_u32M(dst->vna_hash, src->vna_hash);
|
|
|
__store_u16M(dst->vna_flags, src->vna_flags);
|
|
|
__store_u16M(dst->vna_other, src->vna_other);
|
|
|
__store_u32M(dst->vna_name, src->vna_name);
|
|
|
__store_u32M(dst->vna_next, src->vna_next);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
static void
|
|
|
__store_verneed(verneed_ftype *dst, const verneed_mtype *src, unsigned enc) {
|
|
|
if (enc == ELFDATA2LSB) {
|
|
|
__store_u16L(dst->vn_version, src->vn_version);
|
|
|
__store_u16L(dst->vn_cnt, src->vn_cnt);
|
|
|
__store_u32L(dst->vn_file, src->vn_file);
|
|
|
__store_u32L(dst->vn_aux, src->vn_aux);
|
|
|
__store_u32L(dst->vn_next, src->vn_next);
|
|
|
}
|
|
|
else {
|
|
|
__store_u16M(dst->vn_version, src->vn_version);
|
|
|
__store_u16M(dst->vn_cnt, src->vn_cnt);
|
|
|
__store_u32M(dst->vn_file, src->vn_file);
|
|
|
__store_u32M(dst->vn_aux, src->vn_aux);
|
|
|
__store_u32M(dst->vn_next, src->vn_next);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
typedef vernaux_mtype vernaux_stype;
|
|
|
typedef vernaux_ftype vernaux_dtype;
|
|
|
typedef verneed_mtype verneed_stype;
|
|
|
typedef verneed_ftype verneed_dtype;
|
|
|
typedef align_mtype verneed_atype;
|
|
|
|
|
|
#define copy_vernaux_srctotmp(d, s, e) (*(d) = *(s))
|
|
|
#define copy_vernaux_tmptodst(d, s, e) __store_vernaux((d), (s), (e))
|
|
|
#define copy_verneed_srctotmp(d, s, e) (*(d) = *(s))
|
|
|
#define copy_verneed_tmptodst(d, s, e) __store_verneed((d), (s), (e))
|
|
|
|
|
|
#define translator_suffix _tof
|
|
|
|
|
|
#else /* TOFILE */
|
|
|
|
|
|
static void
|
|
|
__load_vernaux(vernaux_mtype *dst, const vernaux_ftype *src, unsigned enc) {
|
|
|
if (enc == ELFDATA2LSB) {
|
|
|
dst->vna_hash = __load_u32L(src->vna_hash);
|
|
|
dst->vna_flags = __load_u16L(src->vna_flags);
|
|
|
dst->vna_other = __load_u16L(src->vna_other);
|
|
|
dst->vna_name = __load_u32L(src->vna_name);
|
|
|
dst->vna_next = __load_u32L(src->vna_next);
|
|
|
}
|
|
|
else {
|
|
|
dst->vna_hash = __load_u32M(src->vna_hash);
|
|
|
dst->vna_flags = __load_u16M(src->vna_flags);
|
|
|
dst->vna_other = __load_u16M(src->vna_other);
|
|
|
dst->vna_name = __load_u32M(src->vna_name);
|
|
|
dst->vna_next = __load_u32M(src->vna_next);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
static void
|
|
|
__load_verneed(verneed_mtype *dst, const verneed_ftype *src, unsigned enc) {
|
|
|
if (enc == ELFDATA2LSB) {
|
|
|
dst->vn_version = __load_u16L(src->vn_version);
|
|
|
dst->vn_cnt = __load_u16L(src->vn_cnt);
|
|
|
dst->vn_file = __load_u32L(src->vn_file);
|
|
|
dst->vn_aux = __load_u32L(src->vn_aux);
|
|
|
dst->vn_next = __load_u32L(src->vn_next);
|
|
|
}
|
|
|
else {
|
|
|
dst->vn_version = __load_u16M(src->vn_version);
|
|
|
dst->vn_cnt = __load_u16M(src->vn_cnt);
|
|
|
dst->vn_file = __load_u32M(src->vn_file);
|
|
|
dst->vn_aux = __load_u32M(src->vn_aux);
|
|
|
dst->vn_next = __load_u32M(src->vn_next);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
typedef vernaux_ftype vernaux_stype;
|
|
|
typedef vernaux_mtype vernaux_dtype;
|
|
|
typedef verneed_ftype verneed_stype;
|
|
|
typedef verneed_mtype verneed_dtype;
|
|
|
typedef align_ftype verneed_atype;
|
|
|
|
|
|
#define copy_vernaux_srctotmp(d, s, e) __load_vernaux((d), (s), (e))
|
|
|
#define copy_vernaux_tmptodst(d, s, e) (*(d) = *(s))
|
|
|
#define copy_verneed_srctotmp(d, s, e) __load_verneed((d), (s), (e))
|
|
|
#define copy_verneed_tmptodst(d, s, e) (*(d) = *(s))
|
|
|
|
|
|
#define translator_suffix _tom
|
|
|
|
|
|
#endif /* TOFILE */
|
|
|
|
|
|
#define cat3(a,b,c) a##b##c
|
|
|
#define xlt3(p,e,s) cat3(p,e,s)
|
|
|
#define xltprefix(x) xlt3(x,_,class_suffix)
|
|
|
#define translator(x,e) xlt3(xltprefix(_elf_##x),e,translator_suffix)
|
|
|
|
|
|
static size_t
|
|
|
xlt_verneed(unsigned char *dst, const unsigned char *src, size_t n, unsigned enc) {
|
|
|
size_t off;
|
|
|
|
|
|
if (sizeof(verneed_stype) != sizeof(verneed_dtype)
|
|
|
|| sizeof(vernaux_stype) != sizeof(vernaux_dtype)) {
|
|
|
/* never happens for ELF v1 and Verneed v1 */
|
|
|
seterr(ERROR_UNIMPLEMENTED);
|
|
|
return (size_t)-1;
|
|
|
}
|
|
|
/* size translation shortcut */
|
|
|
if (dst == NULL) {
|
|
|
return n;
|
|
|
}
|
|
|
if (src == NULL) {
|
|
|
seterr(ERROR_NULLBUF);
|
|
|
return (size_t)-1;
|
|
|
}
|
|
|
off = 0;
|
|
|
while (off + sizeof(verneed_stype) <= n) {
|
|
|
const verneed_stype *svn;
|
|
|
verneed_dtype *dvn;
|
|
|
verneed_mtype vn;
|
|
|
size_t acount;
|
|
|
size_t aoff;
|
|
|
|
|
|
/*
|
|
|
* check for proper alignment
|
|
|
*/
|
|
|
if (off % sizeof(verneed_atype)) {
|
|
|
seterr(ERROR_VERNEED_FORMAT);
|
|
|
return (size_t)-1;
|
|
|
}
|
|
|
/*
|
|
|
* copy and check src
|
|
|
*/
|
|
|
svn = (verneed_stype*)(src + off);
|
|
|
dvn = (verneed_dtype*)(dst + off);
|
|
|
copy_verneed_srctotmp(&vn, svn, enc);
|
|
|
if (vn.vn_version < 1
|
|
|
|| vn.vn_version > VER_NEED_CURRENT) {
|
|
|
seterr(ERROR_VERNEED_VERSION);
|
|
|
return (size_t)-1;
|
|
|
}
|
|
|
if (vn.vn_cnt < 1
|
|
|
|| vn.vn_aux == 0) {
|
|
|
seterr(ERROR_VERNEED_FORMAT);
|
|
|
return (size_t)-1;
|
|
|
}
|
|
|
copy_verneed_tmptodst(dvn, &vn, enc);
|
|
|
/*
|
|
|
* copy aux array
|
|
|
*/
|
|
|
aoff = off + vn.vn_aux;
|
|
|
for (acount = 0; acount < vn.vn_cnt; acount++) {
|
|
|
const vernaux_stype *svna;
|
|
|
vernaux_dtype *dvna;
|
|
|
vernaux_mtype vna;
|
|
|
|
|
|
/*
|
|
|
* are we still inside the buffer limits?
|
|
|
*/
|
|
|
if (aoff + sizeof(vernaux_stype) > n) {
|
|
|
break;
|
|
|
}
|
|
|
/*
|
|
|
* check for proper alignment
|
|
|
*/
|
|
|
if (aoff % sizeof(verneed_atype)) {
|
|
|
seterr(ERROR_VERNEED_FORMAT);
|
|
|
return (size_t)-1;
|
|
|
}
|
|
|
/*
|
|
|
* copy and check src
|
|
|
*/
|
|
|
svna = (vernaux_stype*)(src + aoff);
|
|
|
dvna = (vernaux_dtype*)(dst + aoff);
|
|
|
copy_vernaux_srctotmp(&vna, svna, enc);
|
|
|
copy_vernaux_tmptodst(dvna, &vna, enc);
|
|
|
/*
|
|
|
* advance to next vernaux
|
|
|
*/
|
|
|
if (vna.vna_next == 0) {
|
|
|
/* end of list */
|
|
|
break;
|
|
|
}
|
|
|
aoff += vna.vna_next;
|
|
|
}
|
|
|
/*
|
|
|
* advance to next verneed
|
|
|
*/
|
|
|
if (vn.vn_next == 0) {
|
|
|
/* end of list */
|
|
|
break;
|
|
|
}
|
|
|
off += vn.vn_next;
|
|
|
}
|
|
|
return n;
|
|
|
}
|
|
|
|
|
|
size_t
|
|
|
translator(verneed,L11)(unsigned char *dst, const unsigned char *src, size_t n) {
|
|
|
return xlt_verneed(dst, src, n, ELFDATA2LSB);
|
|
|
}
|
|
|
|
|
|
size_t
|
|
|
translator(verneed,M11)(unsigned char *dst, const unsigned char *src, size_t n) {
|
|
|
return xlt_verneed(dst, src, n, ELFDATA2MSB);
|
|
|
}
|
|
|
|
