46 lines
1.8 KiB
C
46 lines
1.8 KiB
C
/* Handling of dynamic sring tokens.
|
|
Copyright (C) 1999, 2001 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
/* Determine the number of DST elements in the name. Only if IS_PATH is
|
|
nonzero paths are recognized (i.e., multiple, ':' separated filenames). */
|
|
#define DL_DST_COUNT(name, is_path) \
|
|
({ \
|
|
size_t __cnt = 0; \
|
|
const char *__sf = strchr (name, '$'); \
|
|
\
|
|
if (__builtin_expect (__sf != NULL, 0)) \
|
|
__cnt = _dl_dst_count (__sf, is_path); \
|
|
\
|
|
__cnt; })
|
|
|
|
/* Prototype for used function. */
|
|
extern size_t _dl_dst_count (const char *name, int is_path);
|
|
|
|
|
|
/* Guess from the number of DSTs the length of the result string. */
|
|
#define DL_DST_REQUIRED(l, name, len, cnt) 1024
|
|
|
|
/* Perform the DST substitution. */
|
|
#define DL_DST_SUBSTITUTE(l, name, res, is_path) \
|
|
_dl_dst_substitute (l, name, res, is_path)
|
|
|
|
/* Prototype for used function. */
|
|
extern char *_dl_dst_substitute (struct link_map *l, const char *name,
|
|
char *result, int is_path);
|