2 * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
3 * Portions Copyright (c) 1990 The Regents of the University of California.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by the University of
17 * California, Berkeley and its contributors.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #if defined(LIBC_SCCS) && !defined(lint)
36 static char sccsid[] = "@(#)dl.c 5.4 (Berkeley) 2/23/91";
37 #endif /* LIBC_SCCS and not lint */
40 #include "dynloader.h"
46 static char error_message[BUFSIZ];
49 BSD44_derived_dlerror(void)
51 static char ret[BUFSIZ];
53 strcpy(ret, error_message);
55 return (ret[0] == 0) ? (char *) NULL : ret;
59 BSD44_derived_dlopen(const char *file, int num)
62 snprintf(error_message, sizeof(error_message),
63 "dlopen (%s) not supported", file);
68 if ((vp = dlopen((char *) file, num)) == (void *) NULL)
69 snprintf(error_message, sizeof(error_message),
70 "dlopen '%s' failed. (%s)", file, dlerror());
76 BSD44_derived_dlsym(void *handle, const char *name)
79 snprintf(error_message, sizeof(error_message),
80 "dlsym (%s) failed", name);
90 snprintf(buf, sizeof(buf), "_%s", name);
94 if ((vp = dlsym(handle, (char *) name)) == (void *) NULL)
95 snprintf(error_message, sizeof(error_message),
96 "dlsym (%s) failed", name);
102 BSD44_derived_dlclose(void *handle)
104 #if defined(__mips__)