/* * Copyright (c) 1988 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that: (1) source distributions retain this entire copyright * notice and comment, and (2) distributions including binaries display * the following acknowledgement: ``This product includes software * developed by the University of California, Berkeley and its contributors'' * in the documentation or other materials provided with the distribution * and in all advertising materials mentioning features or use of this * software. Neither the name of the University nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "@(#)logwtmp.c 5.5 (Berkeley) 6/1/90"; #endif /* LIBC_SCCS and not lint */ #include <sys/types.h> #include <sys/file.h> #include <sys/time.h> #include <sys/stat.h> #include <utmp.h> logwtmp(line, name, host) char *line, *name, *host; { struct utmp ut; struct stat buf; int fd; time_t time(); char *strncpy(); if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0) return; if (fstat(fd, &buf) == 0) { (void) strncpy(ut.ut_line, line, sizeof(ut.ut_line)); (void) strncpy(ut.ut_name, name, sizeof(ut.ut_name)); (void) strncpy(ut.ut_host, host, sizeof(ut.ut_host)); (void) time(&ut.ut_time); if (write(fd, (char *)&ut, sizeof(struct utmp)) != sizeof(struct utmp)) (void) ftruncate(fd, buf.st_size); } (void) close(fd); }