1/*
2 * Copyright (c) 1999-2000 Damien Miller.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#include "includes.h"
26
27RCSID("$Id: bsd-misc.c,v 1.10 2002/07/08 21:09:41 mouring Exp $");
28
29#pragma ident	"%Z%%M%	%I%	%E% SMI"
30
31char *get_progname(char *argv0)
32{
33#ifdef HAVE___PROGNAME
34	extern char *__progname;
35
36	return __progname;
37#else
38	char *p;
39
40	if (argv0 == NULL)
41		return "unknown";	/* XXX */
42	p = strrchr(argv0, '/');
43	if (p == NULL)
44		p = argv0;
45	else
46		p++;
47	return p;
48#endif
49}
50
51#ifndef HAVE_SETLOGIN
52int setlogin(const char *name)
53{
54	return(0);
55}
56#endif /* !HAVE_SETLOGIN */
57
58#ifndef HAVE_INNETGR
59int innetgr(const char *netgroup, const char *host,
60            const char *user, const char *domain)
61{
62	return(0);
63}
64#endif /* HAVE_INNETGR */
65
66#if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID)
67int seteuid(uid_t euid)
68{
69	return(setreuid(-1,euid));
70}
71#endif /* !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) */
72
73#if !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID)
74int setegid(uid_t egid)
75{
76	return(setresgid(-1,egid,-1));
77}
78#endif /* !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID) */
79
80#if !defined(HAVE_STRERROR) && defined(HAVE_SYS_ERRLIST) && defined(HAVE_SYS_NERR)
81const char *strerror(int e)
82{
83	extern int sys_nerr;
84	extern char *sys_errlist[];
85
86	if ((e >= 0) && (e < sys_nerr))
87		return(sys_errlist[e]);
88	else
89		return("unlisted error");
90}
91#endif
92
93#ifndef HAVE_UTIMES
94int utimes(char *filename, struct timeval *tvp)
95{
96	struct utimbuf ub;
97
98	ub.actime = tvp[0].tv_sec;
99	ub.modtime = tvp[1].tv_sec;
100
101	return(utime(filename, &ub));
102}
103#endif
104
105#ifndef HAVE_TRUNCATE
106int truncate (const char *path, off_t length)
107{
108	int fd, ret, saverrno;
109
110	fd = open(path, O_WRONLY);
111	if (fd < 0)
112		return -1;
113
114	ret = ftruncate(fd, length);
115	saverrno = errno;
116	(void) close (fd);
117	if (ret == -1)
118		errno = saverrno;
119	return(ret);
120}
121#endif /* HAVE_TRUNCATE */
122
123#if !defined(HAVE_SETGROUPS) && defined(SETGROUPS_NOOP)
124/*
125 * Cygwin setgroups should be a noop.
126 */
127int
128setgroups(size_t size, const gid_t *list)
129{
130	return 0;
131}
132#endif
133
134