citadel/genstamp.c

   1 /*
   2  * Function to generate RFC822-compliant textual time/date stamp
   3  *
   4  * $Id$
   5  *
   6  */
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <ctype.h>
  11 #include <string.h>
  12 #include <time.h>
  13 #include "genstamp.h"
  14
  15
  16 static char *months[] = {
  17         "Jan", "Feb", "Mar", "Apr", "May", "Jun",
  18         "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
  19 };
  20
  21 static char *weekdays[] = {
  22         "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
  23 };
  24
  25
  26 /*
  27  * Supplied with a unix timestamp, generate an RFC822-compliant textual
  28  * time and date stamp.
  29  */
  30 void generate_rfc822_datestamp(char *buf, time_t xtime) {
  31         struct tm *t;
  32
  33         t = localtime(&xtime);
  34
  35         sprintf(buf, "%s, %02d %s %04d %02d:%02d:%02d %s",
  36                 weekdays[t->tm_wday],
  37                 t->tm_mday,
  38                 months[t->tm_mon],
  39                 t->tm_year + 1900,
  40                 t->tm_hour,
  41                 t->tm_min,
  42                 t->tm_sec,
  43                 tzname[0]
  44                 );
  45 }
  46