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/*
* SPDX-FileCopyrightText: 1991 - 1994, Julianne Frances Haugh
* SPDX-FileCopyrightText: 1996 - 1999, Marek Michałkiewicz
* SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
* SPDX-FileCopyrightText: 2008 , Nicolas François
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <config.h>
#include <ctype.h>
#ident "$Id$"
#include "atoi/str2i.h"
#include "prototypes.h"
#include "getdate.h"
/*
* strtoday() now uses get_date() (borrowed from GNU shellutils)
* which can handle many date formats, for example:
* 1970-09-17 # ISO 8601.
* 70-9-17 # This century assumed by default.
* 70-09-17 # Leading zeros are ignored.
* 9/17/72 # Common U.S. writing.
* 24 September 1972
* 24 Sept 72 # September has a special abbreviation.
* 24 Sep 72 # Three-letter abbreviations always allowed.
* Sep 24, 1972
* 24-sep-72
* 24sep72
*/
long strtoday (const char *str)
{
time_t t;
bool isnum = true;
const char *s = str;
/*
* get_date() interprets an empty string as the current date,
* which is not what we expect, unless you're a BOFH :-).
* (useradd sets sp_expire = current date for new lusers)
*/
if ((NULL == str) || ('\0' == *str)) {
return -1;
}
/* If a numerical value is provided, this is already a number of
* days since EPOCH.
*/
if ('-' == *s) {
s++;
}
while (' ' == *s) {
s++;
}
while (isnum && ('\0' != *s)) {
if (!isdigit (*s)) {
isnum = false;
}
s++;
}
if (isnum) {
long retdate;
if (str2sl(&retdate, str) == -1)
return -2;
return retdate;
}
t = get_date(str, NULL);
if ((time_t) - 1 == t) {
return -2;
}
return t / DAY;
}
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