| /* 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); |