projects / unix-history / blame
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|---|---|---|
| 0f0842e5 KB |
1 | /* |
| 2 | * Copyright (c) 1988 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 1343342a | 5 | * %sccs.include.redist.c% |
| 0f0842e5 | 6 | * |
| 0f0842e5 KB |
7 | */ |
| 8 | ||
| 9 | #ifndef lint | |
| 1343342a | 10 | static char sccsid[] = "@(#)logwtmp.c 5.6 (Berkeley) %G%"; |
| 0f0842e5 KB |
11 | #endif /* not lint */ |
| 12 | ||
| 13 | #include <sys/types.h> | |
| 14 | #include <sys/file.h> | |
| 15 | #include <sys/time.h> | |
| 16 | #include <sys/stat.h> | |
| 17 | #include <utmp.h> | |
| 18 | ||
| 882508af | 19 | static int fd = -1; |
| 7af50788 | 20 | |
| 882508af MK |
21 | /* |
| 22 | * Modified version of logwtmp that holds wtmp file open | |
| 23 | * after first call, for use with ftp (which may chroot | |
| 24 | * after login, but before logout). | |
| 25 | */ | |
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26 | logwtmp(line, name, host) |
| 27 | char *line, *name, *host; | |
| 28 | { | |
| 29 | struct utmp ut; | |
| 30 | struct stat buf; | |
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31 | time_t time(); |
| 32 | char *strncpy(); | |
| 33 | ||
| f721a0ca | 34 | if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0) |
| 0f0842e5 | 35 | return; |
| 882508af | 36 | if (fstat(fd, &buf) == 0) { |
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37 | (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); |
| 38 | (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); | |
| 39 | (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); | |
| 40 | (void)time(&ut.ut_time); | |
| 41 | if (write(fd, (char *)&ut, sizeof(struct utmp)) != | |
| 42 | sizeof(struct utmp)) | |
| 43 | (void)ftruncate(fd, buf.st_size); | |
| 44 | } | |
| 0f0842e5 | 45 | } |