1da2e3ebdSchin /***********************************************************************
2da2e3ebdSchin *                                                                      *
3da2e3ebdSchin *               This software is part of the ast package               *
4*b30d1939SAndy Fiddaman *          Copyright (c) 1997-2011 AT&T Intellectual Property          *
5da2e3ebdSchin *                      and is licensed under the                       *
6*b30d1939SAndy Fiddaman *                 Eclipse Public License, Version 1.0                  *
77c2fbfb3SApril Chin *                    by AT&T Intellectual Property                     *
8da2e3ebdSchin *                                                                      *
9da2e3ebdSchin *                A copy of the License is available at                 *
10*b30d1939SAndy Fiddaman *          http://www.eclipse.org/org/documents/epl-v10.html           *
11*b30d1939SAndy Fiddaman *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12da2e3ebdSchin *                                                                      *
13da2e3ebdSchin *              Information and Software Systems Research               *
14da2e3ebdSchin *                            AT&T Research                             *
15da2e3ebdSchin *                           Florham Park NJ                            *
16da2e3ebdSchin *                                                                      *
17da2e3ebdSchin *                 Glenn Fowler <gsf@research.att.com>                  *
18da2e3ebdSchin *                                                                      *
19da2e3ebdSchin ***********************************************************************/
20da2e3ebdSchin #pragma prototyped
21da2e3ebdSchin /*
22da2e3ebdSchin  * Glenn Fowler
23da2e3ebdSchin  * AT&T Research
24da2e3ebdSchin  */
25da2e3ebdSchin 
26*b30d1939SAndy Fiddaman #include "dlllib.h"
27*b30d1939SAndy Fiddaman 
28*b30d1939SAndy Fiddaman Dllstate_t	state;
29da2e3ebdSchin 
30da2e3ebdSchin /*
31*b30d1939SAndy Fiddaman  * return error message from last failed dl*() call
32*b30d1939SAndy Fiddaman  * retain==0 resets the last dl*() error
33da2e3ebdSchin  */
34da2e3ebdSchin 
35*b30d1939SAndy Fiddaman extern char*
dllerror(int retain)36*b30d1939SAndy Fiddaman dllerror(int retain)
37da2e3ebdSchin {
38*b30d1939SAndy Fiddaman 	char*	s;
39da2e3ebdSchin 
40*b30d1939SAndy Fiddaman 	if (state.error)
41*b30d1939SAndy Fiddaman 	{
42*b30d1939SAndy Fiddaman 		state.error = retain;
43*b30d1939SAndy Fiddaman 		return state.errorbuf;
44*b30d1939SAndy Fiddaman 	}
45*b30d1939SAndy Fiddaman 	s = dlerror();
46*b30d1939SAndy Fiddaman 	if (retain)
47da2e3ebdSchin 	{
48*b30d1939SAndy Fiddaman 		state.error = retain;
49*b30d1939SAndy Fiddaman 		sfsprintf(state.errorbuf, sizeof(state.errorbuf), "%s", s);
50da2e3ebdSchin 	}
51*b30d1939SAndy Fiddaman 	return s;
52da2e3ebdSchin }
53