| /* vi: set sw=4 ts=4: */ |
| /* |
| * wtmp support rubbish (i.e. complete crap) |
| * Copyright (C) 2000-2006 by Erik Andersen <andersen@uclibc.org> |
| * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| */ |
| |
| #include <string.h> |
| #include <sys/time.h> |
| #include <time.h> |
| #include <unistd.h> |
| #include <utmp.h> |
| #include <fcntl.h> |
| #include <sys/file.h> |
| |
| void logwtmp(const char *line, const char *name, const char *host) |
| { |
| struct utmp lutmp; |
| memset(&lutmp, 0, sizeof(lutmp)); |
| |
| lutmp.ut_type = (name && *name) ? USER_PROCESS : DEAD_PROCESS; |
| lutmp.ut_pid = getpid(); |
| strncpy(lutmp.ut_line, line, sizeof(lutmp.ut_line)-1); |
| strncpy(lutmp.ut_name, name, sizeof(lutmp.ut_name)-1); |
| strncpy(lutmp.ut_host, host, sizeof(lutmp.ut_host)-1); |
| #if !defined __WORDSIZE_COMPAT32 || __WORDSIZE_COMPAT32 == 0 |
| gettimeofday(&lutmp.ut_tv, NULL); |
| #else |
| { |
| struct timeval tv; |
| gettimeofday(&tv, NULL); |
| lutmp.ut_tv.tv_sec = tv.tv_sec; |
| lutmp.ut_tv.tv_usec = tv.tv_usec; |
| } |
| #endif |
| |
| updwtmp(_PATH_WTMP, &lutmp); |
| } |
| |
| #if 0 |
| /* This is enabled in uClibc/libc/misc/utmp/wtent.c */ |
| void updwtmp(const char *wtmp_file, const struct utmp *lutmp) |
| { |
| int fd; |
| |
| fd = open(wtmp_file, O_APPEND | O_WRONLY); |
| if (fd >= 0) { |
| if (lockf(fd, F_LOCK, 0) == 0) { |
| write(fd, lutmp, sizeof(*lutmp)); |
| lockf(fd, F_ULOCK, 0); |
| close(fd); |
| } |
| } |
| } |
| #endif |