53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/* Look up a 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 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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#include <dlfcn.h>
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#include <stddef.h>
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struct dlsym_args
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{
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/* The arguments to dlsym_doit. */
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void *handle;
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const char *name;
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void *who;
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/* The return value of dlsym_doit. */
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void *sym;
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};
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static void
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dlsym_doit (void *a)
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{
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struct dlsym_args *args = (struct dlsym_args *) a;
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args->sym = _dl_sym (args->handle, args->name, args->who);
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}
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void *
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dlsym (void *handle, const char *name)
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{
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struct dlsym_args args;
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args.who = RETURN_ADDRESS (0);
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args.handle = handle;
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args.name = name;
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return (_dlerror_run (dlsym_doit, &args) ? NULL : args.sym);
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}
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