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/* 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