4.3BSD - /usr/src/etc/getty/get_date.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #ifndef lint
   8: static char sccsid[] = "@(#)get_date.c	5.1 (Berkeley) 4/29/85";
   9: #endif not lint
  10: 
  11: #include <stdio.h>
  12: #include <sys/time.h>
  13: 
  14: static char *days[] = {
  15:     "Sun", "Mon", "Tues", "Wed", "Thurs", "Fri", "Sat"
  16: };
  17: 
  18: static char *months[] = {
  19:     "Jan", "Feb", "Mar", "Apr", "May", "June",
  20:     "July", "Aug", "Sept", "Oct", "Nov", "Dec"
  21: };
  22: 
  23: #define AM "am"
  24: #define PM "pm"
  25: 
  26: get_date(datebuffer)
  27:     char *datebuffer;
  28: {
  29:     struct tm *localtime(), *tmp;
  30:     struct timeval tv;
  31:     int realhour;
  32:     char *zone;
  33: 
  34:     gettimeofday(&tv, 0);
  35:     tmp = localtime(&tv.tv_sec);
  36: 
  37:     realhour = tmp->tm_hour;
  38:     zone = AM;          /* default to morning */
  39:     if (tmp->tm_hour == 0)
  40:         realhour = 12;      /* midnight */
  41:     else if (tmp->tm_hour == 12)
  42:         zone = PM;      /* noon */
  43:     else if (tmp->tm_hour >= 13 && tmp->tm_hour <= 23) { /* afternoon */
  44:         realhour = realhour - 12;
  45:         zone = PM;
  46:     }
  47: 
  48:     /* format is '8:10pm on Sunday, 16 Sept 1973' */
  49: 
  50:     sprintf(datebuffer, "%d:%02d%s on %s, %d %s %d",
  51:         realhour,
  52:         tmp->tm_min,
  53:         zone,
  54:         days[tmp->tm_wday],
  55:         tmp->tm_mday,
  56:         months[tmp->tm_mon],
  57:         1900 + tmp->tm_year);
  58: }

Defined functions

Defined variables

Defined macros