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/* $OpenBSD: dyn.c,v 1.1 1999/08/28 11:54:55 niklas Exp $ */
/* $EOM: dyn.c,v 1.2 1999/08/26 11:13:36 niklas Exp $ */
/*
* Copyright (c) 1999 Niklas Hallqvist. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Ericsson Radio Systems.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This code was written under funding by Ericsson Radio Systems.
*/
#include <dlfcn.h>
#include "sysdep.h"
#include "dyn.h"
#include "log.h"
int
dyn_load (struct dynload_script *scr)
{
int i;
void **desc = 0;
for (i = 0; scr[i].op != EOS; i++)
switch (scr[i].op)
{
case LOAD:
desc = scr[i].ptr;
*desc = dlopen (scr[i].name, DL_LAZY);
if (!*desc)
{
log_print ("dyn_load: dlopen (\"%s\", DL_LAZY) failed: %s",
scr[i].name, dlerror ());
return 0;
}
break;
case SYM:
if (!desc || !*desc)
continue;
*scr[i].ptr = dlsym (*desc, scr[i].name);
if (!*scr[i].ptr)
{
log_print ("dyn_load: dlsym (\"%s\") failed: %s", scr[i].name,
dlerror ());
*desc = 0;
return 0;
}
break;
default:
log_print ("dyn_load: bad operation (%d) on entry %d, ignoring",
scr[i].op, i);
}
return 1;
}
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