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