1 /*- 2 * Copyright (C) 1996 3 * David L. Nugent. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/usr.sbin/pw/pw_log.c,v 1.5.2.1 2000/06/28 19:19:04 ache Exp $ 27 * $DragonFly: src/usr.sbin/pw/pw_log.c,v 1.2 2003/06/17 04:30:02 dillon Exp $ 28 */ 29 30 #include <fcntl.h> 31 32 #include "pw.h" 33 34 static FILE *logfile = NULL; 35 36 void 37 pw_log(struct userconf * cnf, int mode, int which, char const * fmt,...) 38 { 39 if (cnf->logfile && *cnf->logfile) { 40 if (logfile == NULL) { /* With umask==0 we need to control file access modes on create */ 41 int fd = open(cnf->logfile, O_WRONLY | O_CREAT | O_APPEND, 0600); 42 43 if (fd != -1) 44 logfile = fdopen(fd, "a"); 45 } 46 if (logfile != NULL) { 47 va_list argp; 48 int l; 49 time_t now = time(NULL); 50 struct tm *t = localtime(&now); 51 char nfmt[256]; 52 char *name; 53 54 if ((name = getenv("LOGNAME")) == NULL && (name = getenv("USER")) == NULL) 55 name = "unknown"; 56 /* ISO 8601 International Standard Date format */ 57 strftime(nfmt, sizeof nfmt, "%Y-%m-%d %T ", t); 58 l = strlen(nfmt); 59 sprintf(nfmt + strlen(nfmt), "[%s:%s%s] %s\n", name, Which[which], Modes[mode], fmt); 60 va_start(argp, fmt); 61 vfprintf(logfile, nfmt, argp); 62 va_end(argp); 63 fflush(logfile); 64 } 65 } 66 } 67