trunk/src/misc.c

/*
 *  Copyright (c) 2002 Erik Fears
 *  Copyright (c) 2014-2021 ircd-hybrid development team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 *  USA
 */

#include "setup.h"

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

#include "misc.h"


const char *
date_iso8601(time_t lclock)
{
  static char buf[32];
  static time_t lclock_last;

  if (lclock == 0)
    lclock = time(0);

  if (lclock_last != lclock)
  {
    lclock_last = lclock;
    strftime(buf, sizeof(buf), "%FT%T%z", localtime(&lclock));
  }

  return buf;
}

/*
 * Split a time_t into an English-language explanation of how
 * much time it represents, e.g. "2 hours 45 minutes 8 seconds"
 */
const char *
time_dissect(time_t duration)
{
  static char buf[32];  /* 32 = sizeof("9999999999999999 days, 23:59:59") */
  unsigned int days = 0, hours = 0, minutes = 0, seconds = 0;

  while (duration >= 60 * 60 * 24)
  {
    duration -= 60 * 60 * 24;
    ++days;
  }

  while (duration >= 60 * 60)
  {
    duration -= 60 * 60;
    ++hours;
  }

  while (duration >= 60)
  {
    duration -= 60;
    ++minutes;
  }

  seconds = duration;

  snprintf(buf, sizeof(buf), "%u day%s, %02u:%02u:%02u",
           days, days == 1 ? "" : "s", hours, minutes, seconds);
  return buf;
}

const char *
stripws(char *txt)
{
  while (*txt == '\t' || *txt == ' ')
    ++txt;

  char *tmp = txt + strlen(txt) - 1;
  while (tmp >= txt && (*tmp == '\t' || *tmp == ' '))
    --tmp;

  *(tmp + 1) = '\0';

  return txt;
}
Revision:	9865
Committed:	Sat Jan 2 18:42:37 2021 UTC (3 years, 3 months ago) by michael
Content type:	text/x-csrc
File size:	2150 byte(s)
Log Message:	- Bump copyright years
#	User	Rev	Content
1	michael	5052	/*
2	michael	5351	* Copyright (c) 2002 Erik Fears
3	michael	9865	* Copyright (c) 2014-2021 ircd-hybrid development team
4	michael	5351	*
5			* This program is free software; you can redistribute it and/or modify
6			* it under the terms of the GNU General Public License as published by
7			* the Free Software Foundation; either version 2 of the License, or
8			* (at your option) any later version.
9			*
10			* This program is distributed in the hope that it will be useful,
11			* but WITHOUT ANY WARRANTY; without even the implied warranty of
12			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			* GNU General Public License for more details.
14			*
15			* You should have received a copy of the GNU General Public License
16			* along with this program; if not, write to the Free Software
17			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
18			* USA
19			*/
20	michael	5052
21			#include "setup.h"
22
23			#include <stdio.h>
24	michael	7724	#include <string.h>
25	michael	5052	#include <time.h>
26
27			#include "misc.h"
28
29
30	michael	6970	const char *
31			date_iso8601(time_t lclock)
32			{
33			static char buf[32];
34			static time_t lclock_last;
35
36	michael	8555	if (lclock == 0)
37	michael	6970	lclock = time(0);
38
39			if (lclock_last != lclock)
40			{
41			lclock_last = lclock;
42			strftime(buf, sizeof(buf), "%FT%T%z", localtime(&lclock));
43			}
44
45			return buf;
46			}
47
48	michael	5052	/*
49			* Split a time_t into an English-language explanation of how
50			* much time it represents, e.g. "2 hours 45 minutes 8 seconds"
51			*/
52	michael	5917	const char *
53	michael	6968	time_dissect(time_t duration)
54	michael	5052	{
55	michael	6968	static char buf[32]; /* 32 = sizeof("9999999999999999 days, 23:59:59") */
56	michael	6568	unsigned int days = 0, hours = 0, minutes = 0, seconds = 0;
57	michael	5052
58	michael	6788	while (duration >= 60 * 60 * 24)
59	michael	5368	{
60	michael	6788	duration -= 60 * 60 * 24;
61	michael	6568	++days;
62	michael	5368	}
63	michael	5052
64	michael	6788	while (duration >= 60 * 60)
65	michael	5368	{
66	michael	6788	duration -= 60 * 60;
67	michael	6568	++hours;
68	michael	5368	}
69	michael	5052
70	michael	6788	while (duration >= 60)
71	michael	5368	{
72	michael	6788	duration -= 60;
73	michael	6568	++minutes;
74	michael	5368	}
75	michael	5052
76	michael	6788	seconds = duration;
77	michael	5052
78	michael	6568	snprintf(buf, sizeof(buf), "%u day%s, %02u:%02u:%02u",
79			days, days == 1 ? "" : "s", hours, minutes, seconds);
80	michael	5368	return buf;
81	michael	5052	}
82	michael	7711
83	michael	7802	const char *
84	michael	7724	stripws(char *txt)
85	michael	7711	{
86	michael	7724	while (txt == '\t' \|\| txt == ' ')
87			++txt;
88	michael	7711
89	michael	7724	char *tmp = txt + strlen(txt) - 1;
90			while (tmp >= txt && (tmp == '\t' \|\| tmp == ' '))
91			--tmp;
92	michael	7711
93	michael	7724	*(tmp + 1) = '\0';
94	michael	7711
95	michael	7724	return txt;
96	michael	7711	}