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File: [cvs.NetBSD.org] / src / lib / libc / gen / utmp.c (download)
Revision 1.7, Mon Apr 28 20:22:59 2008 UTC (15 years, 11 months ago) by martin
Remove clause 3 and 4 from TNF licenses |
/* $NetBSD: utmp.c,v 1.7 2008/04/28 20:22:59 martin Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Christos Zoulas. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include <sys/cdefs.h> #if defined(LIBC_SCCS) && !defined(lint) __RCSID("$NetBSD: utmp.c,v 1.7 2008/04/28 20:22:59 martin Exp $"); #endif /* LIBC_SCCS and not lint */ #include "namespace.h" #include <sys/types.h> #include <sys/param.h> #include <stdio.h> #include <string.h> #include <time.h> #include <utmp.h> static struct utmp utmp; static FILE *ut; static char utfile[MAXPATHLEN] = _PATH_UTMP; void setutent(void) { if (ut == NULL) return; (void)fseeko(ut, (off_t)0, SEEK_SET); } struct utmp * getutent(void) { if (ut == NULL) { if ((ut = fopen(utfile, "r")) == NULL) return NULL; } if (fread(&utmp, sizeof(utmp), 1, ut) == 1) return &utmp; return NULL; } void endutent(void) { if (ut != NULL) { (void)fclose(ut); ut = NULL; } } int utmpname(const char *fname) { size_t len = strlen(fname); if (len >= sizeof(utfile)) return 0; /* must not end in x! */ if (fname[len - 1] == 'x') return 0; (void)strlcpy(utfile, fname, sizeof(utfile)); endutent(); return 1; }