mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
55 lines
2.5 KiB
C
55 lines
2.5 KiB
C
|
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
||
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
||
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
||
|
|
│ Copyright 2021 Justine Alexandra Roberts Tunney │
|
||
|
|
│ │
|
||
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
||
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
||
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
||
|
|
│ │
|
||
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
||
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
||
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
||
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
||
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
||
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
||
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
||
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
||
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
||
|
|
#include "libc/time/struct/tm.h"
|
||
|
|
#include "libc/time/time.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Converts timestamp to ISO-8601 formatted string.
|
||
|
|
*/
|
||
|
|
char *iso8601(char p[hasatleast 20], struct tm *tm) {
|
||
|
|
int x;
|
||
|
|
x = tm->tm_year + 1900;
|
||
|
|
*p++ = '0' + x / 1000;
|
||
|
|
*p++ = '0' + x / 100 % 10;
|
||
|
|
*p++ = '0' + x / 10 % 10;
|
||
|
|
*p++ = '0' + x % 10;
|
||
|
|
*p++ = '-';
|
||
|
|
x = tm->tm_mon + 1;
|
||
|
|
*p++ = '0' + x / 10;
|
||
|
|
*p++ = '0' + x % 10;
|
||
|
|
*p++ = '-';
|
||
|
|
x = tm->tm_mday;
|
||
|
|
*p++ = '0' + x / 10;
|
||
|
|
*p++ = '0' + x % 10;
|
||
|
|
*p++ = 'T';
|
||
|
|
x = tm->tm_hour;
|
||
|
|
*p++ = '0' + x / 10;
|
||
|
|
*p++ = '0' + x % 10;
|
||
|
|
*p++ = ':';
|
||
|
|
x = tm->tm_min;
|
||
|
|
*p++ = '0' + x / 10;
|
||
|
|
*p++ = '0' + x % 10;
|
||
|
|
*p++ = ':';
|
||
|
|
x = tm->tm_sec;
|
||
|
|
*p++ = '0' + x / 10;
|
||
|
|
*p++ = '0' + x % 10;
|
||
|
|
*p = 0;
|
||
|
|
return p;
|
||
|
|
}
|