projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 0f0842e5 KB |
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 | |
| 15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 16 | * | |
| 17 | * static char sccsid[] = "@(#)logwtmp.c 5.2 (Berkeley) 9/20/88"; | |
| 18 | */ | |
| 19 | ||
| 20 | #ifndef lint | |
| 21 | static char sccsid[] = "@(#)logwtmp.c 5.1 (Berkeley) %G%"; | |
| 22 | #endif /* not lint */ | |
| 23 | ||
| 24 | #include <sys/types.h> | |
| 25 | #include <sys/file.h> | |
| 26 | #include <sys/time.h> | |
| 27 | #include <sys/stat.h> | |
| 28 | #include <utmp.h> | |
| 29 | ||
| 30 | #define WTMPFILE "/usr/adm/wtmp" | |
| 31 | ||
| 32 | logwtmp(line, name, host) | |
| 33 | char *line, *name, *host; | |
| 34 | { | |
| 35 | struct utmp ut; | |
| 36 | struct stat buf; | |
| 37 | int fd; | |
| 38 | time_t time(); | |
| 39 | char *strncpy(); | |
| 40 | ||
| 41 | if ((fd = open(WTMPFILE, O_WRONLY|O_APPEND, 0)) < 0) | |
| 42 | return; | |
| 43 | if (!fstat(fd, &buf)) { | |
| 44 | (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); | |
| 45 | (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); | |
| 46 | (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); | |
| 47 | (void)time(&ut.ut_time); | |
| 48 | if (write(fd, (char *)&ut, sizeof(struct utmp)) != | |
| 49 | sizeof(struct utmp)) | |
| 50 | (void)ftruncate(fd, buf.st_size); | |
| 51 | } | |
| 52 | (void)close(fd); | |
| 53 | } |