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Annotation of 43BSDReno/kerberosIV/krb/log.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * $Source: /usr/src/kerberosIV/krb/RCS/log.c,v $
                      3:  * $Author: kfall $
                      4:  *
                      5:  * Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
                      6:  * of Technology.
                      7:  *
                      8:  * For copying and distribution information, please see the file
                      9:  * <mit-copyright.h>.
                     10:  */
                     11: 
                     12: #ifndef lint
                     13: static char *rcsid_log_c =
                     14: "$Header: /usr/src/kerberosIV/krb/RCS/log.c,v 4.8 90/06/25 20:56:49 kfall Exp $";
                     15: #endif /* lint */
                     16: 
                     17: #include <mit-copyright.h>
                     18: #include <sys/time.h>
                     19: #include <stdio.h>
                     20: 
                     21: #include <des.h>
                     22: #include <krb.h>
                     23: #include <klog.h>
                     24: 
                     25: static char *log_name = KRBLOG;
                     26: static is_open;
                     27: 
                     28: /*
                     29:  * This file contains three logging routines: set_logfile()
                     30:  * to determine the file that log entries should be written to;
                     31:  * and log() and new_log() to write log entries to the file.
                     32:  */
                     33: 
                     34: /*
                     35:  * log() is used to add entries to the logfile (see set_logfile()
                     36:  * below).  Note that it is probably not portable since it makes
                     37:  * assumptions about what the compiler will do when it is called
                     38:  * with less than the correct number of arguments which is the
                     39:  * way it is usually called.
                     40:  *
                     41:  * The log entry consists of a timestamp and the given arguments
                     42:  * printed according to the given "format".
                     43:  *
                     44:  * The log file is opened and closed for each log entry.
                     45:  *
                     46:  * The return value is undefined.
                     47:  */
                     48: 
                     49: /*VARARGS1 */
                     50: void log(format,a1,a2,a3,a4,a5,a6,a7,a8,a9,a0)
                     51:     char *format;
                     52:     int a1,a2,a3,a4,a5,a6,a7,a8,a9,a0;
                     53: {
                     54:     FILE *logfile, *fopen();
                     55:     long time(),now;
                     56:     struct tm *tm;
                     57:     char *month_sname();
                     58: 
                     59:     if ((logfile = fopen(log_name,"a")) == NULL)
                     60:         return;
                     61: 
                     62:     (void) time(&now);
                     63:     tm = localtime(&now);
                     64: 
                     65:     fprintf(logfile,"%2d-%s-%02d %02d:%02d:%02d ",tm->tm_mday,
                     66:             month_sname(tm->tm_mon + 1),tm->tm_year,
                     67:             tm->tm_hour, tm->tm_min, tm->tm_sec);
                     68:     fprintf(logfile,format,a1,a2,a3,a4,a5,a6,a7,a8,a9,a0);
                     69:     fprintf(logfile,"\n");
                     70:     (void) fclose(logfile);
                     71:     return;
                     72: }
                     73: 
                     74: /*
                     75:  * set_logfile() changes the name of the file to which
                     76:  * messages are logged.  If set_logfile() is not called,
                     77:  * the logfile defaults to KRBLOG, defined in "krb.h".
                     78:  */
                     79: 
                     80: set_logfile(filename)
                     81:     char *filename;
                     82: {
                     83:     log_name = filename;
                     84:     is_open = 0;
                     85: }
                     86: 
                     87: /*
                     88:  * new_log() appends a log entry containing the give time "t" and the
                     89:  * string "string" to the logfile (see set_logfile() above).  The file
                     90:  * is opened once and left open.  The routine returns 1 on failure, 0
                     91:  * on success.
                     92:  */
                     93: 
                     94: new_log(t,string)
                     95:     long t;
                     96:     char *string;
                     97: {
                     98:     static FILE *logfile;
                     99: 
                    100:     long time();
                    101:     struct tm *tm;
                    102: 
                    103:     if (!is_open) {
                    104:         if ((logfile = fopen(log_name,"a")) == NULL) return(1);
                    105:         is_open = 1;
                    106:     }
                    107: 
                    108:     if (t) {
                    109:         tm = localtime(&t);
                    110: 
                    111:         fprintf(logfile,"\n%2d-%s-%02d %02d:%02d:%02d  %s",tm->tm_mday,
                    112:                 month_sname(tm->tm_mon + 1),tm->tm_year,
                    113:                 tm->tm_hour, tm->tm_min, tm->tm_sec, string);
                    114:     }
                    115:     else {
                    116:         fprintf(logfile,"\n%20s%s","",string);
                    117:     }
                    118: 
                    119:     (void) fflush(logfile);
                    120:     return(0);
                    121: }

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