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
27 RCSID("$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
get_progname(char * argv0)31 char *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
setlogin(const char * name)52 int setlogin(const char *name)
53 {
54 return(0);
55 }
56 #endif /* !HAVE_SETLOGIN */
57
58 #ifndef HAVE_INNETGR
innetgr(const char * netgroup,const char * host,const char * user,const char * domain)59 int 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)
seteuid(uid_t euid)67 int 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)
setegid(uid_t egid)74 int 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)
strerror(int e)81 const 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
utimes(char * filename,struct timeval * tvp)94 int 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
truncate(const char * path,off_t length)106 int 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 */
127 int
setgroups(size_t size,const gid_t * list)128 setgroups(size_t size, const gid_t *list)
129 {
130 return 0;
131 }
132 #endif
133
134