BSD 4_3_Net_2 release

[unix-history] / usr / src / kerberosIV / krb / klog.c

/*
* $Source: /usr/src/kerberosIV/krb/RCS/klog.c,v $
* $Author: kfall $
*
* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
* of Technology.
*
* For copying and distribution information, please see the file
* <mit-copyright.h>.
*/

#ifndef lint
static char *rcsid_klog_c =
"$Header: /usr/src/kerberosIV/krb/RCS/klog.c,v 4.7 90/06/25 20:56:31 kfall Exp $";
#endif /* lint */

#include <mit-copyright.h>
#include <sys/time.h>
#include <stdio.h>

#include <des.h>
#include <krb.h>
#include <klog.h>

static char *log_name = KRBLOG;
static int is_open;
static char logtxt[1000];

/*
* This file contains two logging routines: kset_logfile()
* to determine the file to which log entries should be written;
* and klog() to write log entries to the file.
*/

/*
* klog() is used to add entries to the logfile (see kset_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" string.
*
* The log file is opened and closed for each log entry.
*
* If the given log type "type" is unknown, or if the log file
* cannot be opened, no entry is made to the log file.
*
* The return value is always a pointer to the formatted log
* text string "logtxt".
*/

char * klog(type,format,a1,a2,a3,a4,a5,a6,a7,a8,a9,a0)
   int type;
   char *format;
   int a1,a2,a3,a4,a5,a6,a7,a8,a9,a0;
{
   FILE *logfile, *fopen();
   long time(),now;
   char *month_sname();
   struct tm *tm;
   static int logtype_array[NLOGTYPE] = {0,0};
   static int array_initialized;

   if (!(array_initialized++)) {
       logtype_array[L_NET_ERR] = 1;
       logtype_array[L_KRB_PERR] = 1;
       logtype_array[L_KRB_PWARN] = 1;
       logtype_array[L_APPL_REQ] = 1;
       logtype_array[L_INI_REQ] = 1;
       logtype_array[L_DEATH_REQ] = 1;
       logtype_array[L_NTGT_INTK] = 1;
       logtype_array[L_ERR_SEXP] = 1;
       logtype_array[L_ERR_MKV] = 1;
       logtype_array[L_ERR_NKY] = 1;
       logtype_array[L_ERR_NUN] = 1;
       logtype_array[L_ERR_UNK] = 1;
   }

   (void) sprintf(logtxt,format,a1,a2,a3,a4,a5,a6,a7,a8,a9,a0);

   if (!logtype_array[type])
       return(logtxt);

   if ((logfile = fopen(log_name,"a")) == NULL)
       return(logtxt);

   (void) time(&now);
   tm = localtime(&now);

   fprintf(logfile,"%2d-%s-%02d %02d:%02d:%02d ",tm->tm_mday,
           month_sname(tm->tm_mon + 1),tm->tm_year,
           tm->tm_hour, tm->tm_min, tm->tm_sec);
   fprintf(logfile,"%s\n",logtxt);
   (void) fclose(logfile);
   return(logtxt);
}

/*
* kset_logfile() changes the name of the file to which
* messages are logged.  If kset_logfile() is not called,
* the logfile defaults to KRBLOG, defined in "krb.h".
*/

kset_logfile(filename)
   char *filename;
{
   log_name = filename;
   is_open = 0;
}