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 * $Id$ 27 */ 28 29 #include <fcntl.h> 30 31 #include "pw.h" 32 33 static FILE *logfile = NULL; 34 35 void 36 pw_log(struct userconf * cnf, int mode, int which, char const * fmt,...) 37 { 38 if (cnf->logfile && *cnf->logfile) { 39 if (logfile == NULL) { /* With umask==0 we need to control file access modes on create */ 40 int fd = open(cnf->logfile, O_WRONLY | O_CREAT | O_APPEND, 0600); 41 42 if (fd != -1) 43 logfile = fdopen(fd, "a"); 44 } 45 if (logfile != NULL) { 46 va_list argp; 47 int l; 48 time_t now = time(NULL); 49 struct tm *t = localtime(&now); 50 char nfmt[256]; 51 char *name; 52 53 if ((name = getenv("LOGNAME")) == NULL && (name = getenv("USER")) == NULL) 54 name = "unknown"; 55 strftime(nfmt, sizeof nfmt, "%d-%b-%Y %R ", t); 56 l = strlen(nfmt); 57 sprintf(nfmt + strlen(nfmt), "[%s:%s%s] %s\n", name, Which[which], Modes[mode], fmt); 58 va_start(argp, fmt); 59 vfprintf(logfile, nfmt, argp); 60 va_end(argp); 61 fflush(logfile); 62 } 63 } 64 } 65