upstream: add fmt_timeframe() (from bgpd) to format a time

interval in a human- friendly format. Switch copyright for this file from BSD
to MIT to make it easier to add Henning's copyright for this function. ok
markus@

OpenBSD-Commit-ID: 414a831c662df7e68893e5233e86f2cac081ccf9
This commit is contained in:
djm@openbsd.org 2020-05-26 01:06:52 +00:00 committed by Damien Miller
parent 2a63ce5cd6
commit 756c6f66ae
2 changed files with 53 additions and 21 deletions

71
misc.c
View File

@ -1,29 +1,23 @@
/* $OpenBSD: misc.c,v 1.147 2020/04/25 06:59:36 dtucker Exp $ */
/* $OpenBSD: misc.c,v 1.148 2020/05/26 01:06:52 djm Exp $ */
/*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
* Copyright (c) 2005,2006 Damien Miller. All rights reserved.
* Copyright (c) 2005-2020 Damien Miller. All rights reserved.
* Copyright (c) 2004 Henning Brauer <henning@openbsd.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* Permission to use, copy, modify, and 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* 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 "includes.h"
#include <sys/types.h>
@ -551,6 +545,43 @@ convtime(const char *s)
return total;
}
#define TF_BUFS 8
#define TF_LEN 9
const char *
fmt_timeframe(time_t t)
{
char *buf;
static char tfbuf[TF_BUFS][TF_LEN]; /* ring buffer */
static int idx = 0;
unsigned int sec, min, hrs, day;
unsigned long long week;
buf = tfbuf[idx++];
if (idx == TF_BUFS)
idx = 0;
week = t;
sec = week % 60;
week /= 60;
min = week % 60;
week /= 60;
hrs = week % 24;
week /= 24;
day = week % 7;
week /= 7;
if (week > 0)
snprintf(buf, TF_LEN, "%02lluw%01ud%02uh", week, day, hrs);
else if (day > 0)
snprintf(buf, TF_LEN, "%01ud%02uh%02um", day, hrs, min);
else
snprintf(buf, TF_LEN, "%02u:%02u:%02u", hrs, min, sec);
return (buf);
}
/*
* Returns a standardized host+port identifier string.
* Caller must free returned string.

3
misc.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: misc.h,v 1.84 2020/01/24 23:54:40 djm Exp $ */
/* $OpenBSD: misc.h,v 1.85 2020/05/26 01:06:52 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
@ -66,6 +66,7 @@ int parse_user_host_path(const char *, char **, char **, char **);
int parse_user_host_port(const char *, char **, char **, int *);
int parse_uri(const char *, const char *, char **, char **, int *, char **);
long convtime(const char *);
const char *fmt_timeframe(time_t t);
char *tilde_expand_filename(const char *, uid_t);
char *percent_expand(const char *, ...) __attribute__((__sentinel__));
char *tohex(const void *, size_t);