diff options
author | Damien Miller <djm@mindrot.org> | 1999-11-19 15:32:34 +1100 |
---|---|---|
committer | Damien Miller <djm@mindrot.org> | 1999-11-19 15:32:34 +1100 |
commit | 04f801456ad64b8f08bb8643cf19e0b9ca477b36 (patch) | |
tree | a0fd23f758cb40cf808b8c18ced35d4045decee9 /bsd-login.c | |
parent | 8029775b77e8f8bc380518f9f734a9d979025bbb (diff) |
- Renamed BSD helper function files to bsd-*
- Added tests for login and daemon and OpenBSD replacements for when they
are absent.
Diffstat (limited to 'bsd-login.c')
-rw-r--r-- | bsd-login.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/bsd-login.c b/bsd-login.c new file mode 100644 index 000000000..8c84272f8 --- /dev/null +++ b/bsd-login.c | |||
@@ -0,0 +1,83 @@ | |||
1 | /* $OpenBSD: login.c,v 1.5 1998/07/13 02:11:12 millert Exp $ */ | ||
2 | /* | ||
3 | * Copyright (c) 1988, 1993 | ||
4 | * The Regents of the University of California. All rights reserved. | ||
5 | * | ||
6 | * Redistribution and use in source and binary forms, with or without | ||
7 | * modification, are permitted provided that the following conditions | ||
8 | * are met: | ||
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. | ||
21 | * | ||
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 | ||
32 | * SUCH DAMAGE. | ||
33 | */ | ||
34 | |||
35 | #include "config.h" | ||
36 | #ifndef HAVE_LOGIN | ||
37 | |||
38 | #if defined(LIBC_SCCS) && !defined(lint) | ||
39 | /* from: static char sccsid[] = "@(#)login.c 8.1 (Berkeley) 6/4/93"; */ | ||
40 | static char *rcsid = "$Id: bsd-login.c,v 1.1 1999/11/19 04:32:34 damien Exp $"; | ||
41 | #endif /* LIBC_SCCS and not lint */ | ||
42 | |||
43 | #include <sys/types.h> | ||
44 | |||
45 | #include <fcntl.h> | ||
46 | #include <unistd.h> | ||
47 | #include <stdlib.h> | ||
48 | #include <utmp.h> | ||
49 | #include <stdio.h> | ||
50 | |||
51 | void | ||
52 | login(utp) | ||
53 | struct utmp *utp; | ||
54 | { | ||
55 | struct utmp old_ut; | ||
56 | register int fd; | ||
57 | int tty; | ||
58 | |||
59 | tty = ttyslot(); | ||
60 | if (tty > 0 && (fd = open(_PATH_UTMP, O_RDWR|O_CREAT, 0644)) >= 0) { | ||
61 | (void)lseek(fd, (off_t)(tty * sizeof(struct utmp)), SEEK_SET); | ||
62 | /* | ||
63 | * Prevent luser from zero'ing out ut_host. | ||
64 | * If the new ut_line is empty but the old one is not | ||
65 | * and ut_line and ut_name match, preserve the old ut_line. | ||
66 | */ | ||
67 | if (read(fd, &old_ut, sizeof(struct utmp)) == | ||
68 | sizeof(struct utmp) && utp->ut_host[0] == '\0' && | ||
69 | old_ut.ut_host[0] != '\0' && | ||
70 | strncmp(old_ut.ut_line, utp->ut_line, UT_LINESIZE) == 0 && | ||
71 | strncmp(old_ut.ut_name, utp->ut_name, UT_NAMESIZE) == 0) | ||
72 | (void)memcpy(utp->ut_host, old_ut.ut_host, UT_HOSTSIZE); | ||
73 | (void)lseek(fd, (off_t)(tty * sizeof(struct utmp)), SEEK_SET); | ||
74 | (void)write(fd, utp, sizeof(struct utmp)); | ||
75 | (void)close(fd); | ||
76 | } | ||
77 | if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) >= 0) { | ||
78 | (void)write(fd, utp, sizeof(struct utmp)); | ||
79 | (void)close(fd); | ||
80 | } | ||
81 | } | ||
82 | |||
83 | #endif /* HAVE_LOGIN */ | ||