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Annotation of 43BSD/etc/getty/get_date.c, revision 1.1.1.1

1.1       root        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: }

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