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/*
* lib/krb4/log.c
*
* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute of
* Technology. All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#ifdef KRB_CRYPT_DEBUG
/* This file used to contain log() and set_logfile(). If you define
KRB_CRYPT_DEBUG, you'll need to define those to point to krb_log and
krb_set_logfile, or change all the invokers. */
#endif
#include "krb.h"
#include "krb5/autoconf.h"
#ifdef HAVE_TIME_H
#include <time.h>
#endif
#if !defined(VMS) && !defined(_WIN32)
#include <sys/time.h>
#endif
#include <stdio.h>
#include <stdarg.h>
#include "krb4int.h"
#include <klog.h>
static char *log_name = KRBLOG;
#if 0
static is_open;
#endif
/*
* This file contains three logging routines: set_logfile()
* to determine the file that log entries should be written to;
* and log() and new_log() to write log entries to the file.
*/
/*
* krb_log() is used to add entries to the logfile (see krb_set_logfile()
* below). Note that it is probably not portable since it makes
* assumptions about what the compiler will do when it is called
* with less than the correct number of arguments which is the
* way it is usually called.
*
* The log entry consists of a timestamp and the given arguments
* printed according to the given "format".
*
* The log file is opened and closed for each log entry.
*
* The return value is undefined.
*/
void krb_log(const char *format,...)
{
FILE *logfile;
time_t now;
struct tm *tm;
va_list args;
va_start(args, format);
if ((logfile = fopen(log_name,"a")) != NULL) {
(void) time(&now);
tm = localtime(&now);
fprintf(logfile,"%2d-%s-%d %02d:%02d:%02d ",tm->tm_mday,
month_sname(tm->tm_mon + 1),1900+tm->tm_year,
tm->tm_hour, tm->tm_min, tm->tm_sec);
vfprintf(logfile,format,args);
fprintf(logfile,"\n");
(void) fclose(logfile);
}
va_end(args);
return;
}
/*
* krb_set_logfile() changes the name of the file to which
* messages are logged. If krb_set_logfile() is not called,
* the logfile defaults to KRBLOG, defined in "krb.h".
*/
void
krb_set_logfile(filename)
char *filename;
{
log_name = filename;
#if 0
is_open = 0;
#endif
}
#if 0
/*
* new_log() appends a log entry containing the give time "t" and the
* string "string" to the logfile (see set_logfile() above). The file
* is opened once and left open. The routine returns 1 on failure, 0
* on success.
*/
krb_new_log(t,string)
long t;
char *string;
{
static FILE *logfile;
struct tm *tm;
if (!is_open) {
if ((logfile = fopen(log_name,"a")) == NULL) return(1);
is_open = 1;
}
if (t) {
tm = localtime(&t);
fprintf(logfile,"\n%2d-%s-%d %02d:%02d:%02d %s",tm->tm_mday,
month_sname(tm->tm_mon + 1),1900+tm->tm_year,
tm->tm_hour, tm->tm_min, tm->tm_sec, string);
}
else {
fprintf(logfile,"\n%20s%s","",string);
}
(void) fflush(logfile);
return(0);
}
#endif
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