Files
shadow/lib/strtoday.c
Alejandro Colomar c39305569b lib/, src/: Use !streq() instead of its pattern
Except for the added (and sorted) includes, the removal of redundant
parentheses, and a few non-string cases that I've left out of the
change, this patch can be approximated with the following semantic
patch:

	$ cat ~/tmp/spatch/strneq.sp
	@@
	expression s;
	@@

	- '\0' != *s
	+ !streq(s, "")

	@@
	expression s;
	@@

	- '\0' != s[0]
	+ !streq(s, "")

	@@
	expression s;
	@@

	- *s != '\0'
	+ !streq(s, "")

	@@
	expression s;
	@@

	- s[0] != '\0'
	+ !streq(s, "")

	$ find contrib/ lib* src/ -type f \
	| xargs spatch --in-place --sp-file ~/tmp/spatch/strneq.sp;

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-12-09 20:54:42 -06:00

76 lines
1.6 KiB
C

/*
* 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>
#include "atoi/str2i/str2s.h"
#include "getdate.h"
#include "prototypes.h"
#include "string/strchr/stpspn.h"
#include "string/strcmp/streq.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) || streq(str, "")) {
return -1;
}
/* If a numerical value is provided, this is already a number of
* days since EPOCH.
*/
if ('-' == *s) {
s++;
}
s = stpspn(s, " ");
while (isnum && !streq(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;
}