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1 | /* |
2 | * Copyright (c) 1988 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
6 | * provided that the above copyright notice and this paragraph are | |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
2482fd41 | 15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
0f0842e5 | 16 | * |
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17 | */ |
18 | ||
19 | #ifndef lint | |
f721a0ca | 20 | static char sccsid[] = "@(#)logwtmp.c 5.5 (Berkeley) %G%"; |
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21 | #endif /* not lint */ |
22 | ||
23 | #include <sys/types.h> | |
24 | #include <sys/file.h> | |
25 | #include <sys/time.h> | |
26 | #include <sys/stat.h> | |
27 | #include <utmp.h> | |
28 | ||
882508af | 29 | static int fd = -1; |
7af50788 | 30 | |
882508af MK |
31 | /* |
32 | * Modified version of logwtmp that holds wtmp file open | |
33 | * after first call, for use with ftp (which may chroot | |
34 | * after login, but before logout). | |
35 | */ | |
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36 | logwtmp(line, name, host) |
37 | char *line, *name, *host; | |
38 | { | |
39 | struct utmp ut; | |
40 | struct stat buf; | |
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41 | time_t time(); |
42 | char *strncpy(); | |
43 | ||
f721a0ca | 44 | if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0) |
0f0842e5 | 45 | return; |
882508af | 46 | if (fstat(fd, &buf) == 0) { |
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47 | (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); |
48 | (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); | |
49 | (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); | |
50 | (void)time(&ut.ut_time); | |
51 | if (write(fd, (char *)&ut, sizeof(struct utmp)) != | |
52 | sizeof(struct utmp)) | |
53 | (void)ftruncate(fd, buf.st_size); | |
54 | } | |
0f0842e5 | 55 | } |