57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/* Look up a versioned symbol in a shared object loaded by `dlopen'.
|
|
Copyright (C) 1995, 1996, 1997, 1998, 1999 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <dlfcn.h>
|
|
#include <stddef.h>
|
|
|
|
struct dlvsym_args
|
|
{
|
|
/* The arguments to dlvsym_doit. */
|
|
void *handle;
|
|
const char *name;
|
|
const char *version;
|
|
void *who;
|
|
|
|
/* The return values of dlvsym_doit. */
|
|
void *sym;
|
|
};
|
|
|
|
|
|
static void
|
|
dlvsym_doit (void *a)
|
|
{
|
|
struct dlvsym_args *args = (struct dlvsym_args *)a;
|
|
|
|
args->sym = _dl_vsym (args->handle, args->name, args->version, args->who);
|
|
}
|
|
|
|
void *
|
|
__dlvsym (void *handle, const char *name, const char *version_str)
|
|
{
|
|
struct dlvsym_args args;
|
|
|
|
args.handle = handle;
|
|
args.name = name;
|
|
args.who = __builtin_return_address (0);
|
|
args.version = version_str;
|
|
|
|
return (_dlerror_run (dlvsym_doit, &args) ? NULL : args.sym);
|
|
}
|
|
weak_alias (__dlvsym, dlvsym)
|