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