57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/* Look up a versioned symbol in a shared object loaded by `dlopen'.
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Copyright (C) 1995, 96, 97, 98, 99, 2000 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <dlfcn.h>
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#include <stddef.h>
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struct dlvsym_args
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{
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/* The arguments to dlvsym_doit. */
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void *handle;
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const char *name;
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const char *version;
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void *who;
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/* The return values of dlvsym_doit. */
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void *sym;
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};
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static void
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dlvsym_doit (void *a)
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{
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struct dlvsym_args *args = (struct dlvsym_args *)a;
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args->sym = _dl_vsym (args->handle, args->name, args->version, args->who);
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}
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void *
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__dlvsym (void *handle, const char *name, const char *version_str)
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{
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struct dlvsym_args args;
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args.handle = handle;
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args.name = name;
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args.who = RETURN_ADDRESS (0);
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args.version = version_str;
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return (_dlerror_run (dlvsym_doit, &args) ? NULL : args.sym);
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}
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weak_alias (__dlvsym, dlvsym)
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