mf_getdate.cc

/* Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.

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/**
  @file mysys/mf_getdate.cc
  Get date in a printable form: yyyy-mm-dd hh:mm:ss
*/

#include <stdio.h>
#include <time.h>

#include "m_string.h"
#include "my_sys.h"

/*
  get date as string

  SYNOPSIS
    get_date()
    to   - string where date will be written
    flag - format of date:
          If flag & GETDATE_TIME	Return date and time
          If flag & GETDATE_SHORT_DATE	Return short date format YYMMDD
          If flag & GETDATE_HHMMSSTIME	Return time in HHMMDD format.
          If flag & GETDATE_GMT		Date/time in GMT
          If flag & GETDATE_FIXEDLENGTH	Return fixed length date/time
    date - for conversion
    If flag & GETDATE_T_DELIMITER Append 'T' between date and time.
    If flag & GETDATE_SHORT_DATE_FULL_YEAR Return compact date format YYYYMMDD
*/

void get_date(char *to, int flag, time_t date) {
  struct tm *start_time;
  time_t skr;
  struct tm tm_tmp;

  skr = date ? (time_t)date : my_time(0);
  if (flag & GETDATE_GMT)
    gmtime_r(&skr, &tm_tmp);
  else
    localtime_r(&skr, &tm_tmp);
  start_time = &tm_tmp;
  if (flag & GETDATE_SHORT_DATE)
    sprintf(to, "%02d%02d%02d", start_time->tm_year % 100,
            start_time->tm_mon + 1, start_time->tm_mday);
  else if (flag & GETDATE_SHORT_DATE_FULL_YEAR)
    sprintf(to, "%4d%02d%02d", start_time->tm_year + 1900,
            start_time->tm_mon + 1, start_time->tm_mday);
  else
    sprintf(to,
            ((flag & GETDATE_FIXEDLENGTH) ? "%4d-%02d-%02d" : "%d-%02d-%02d"),
            start_time->tm_year + 1900, start_time->tm_mon + 1,
            start_time->tm_mday);
  if (flag & GETDATE_DATE_TIME) {
    if (flag & GETDATE_T_DELIMITER) sprintf(strend(to), "T");
    sprintf(
        strend(to),
        ((flag & GETDATE_FIXEDLENGTH) ? " %02d:%02d:%02d" : " %2d:%02d:%02d"),
        start_time->tm_hour, start_time->tm_min, start_time->tm_sec);
  } else if (flag & GETDATE_HHMMSSTIME) {
    if (flag & GETDATE_T_DELIMITER) sprintf(strend(to), "T");
    sprintf(strend(to), "%02d%02d%02d", start_time->tm_hour, start_time->tm_min,
            start_time->tm_sec);
  }
} /* get_date */