mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 21:10:07 +00:00
581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
90 lines
2.9 KiB
C
90 lines
2.9 KiB
C
/* Copyright (C) 1991-2022 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include "../locale/localeinfo.h"
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
|
|
/* This is defined in locale/C-time.c in the GNU libc. */
|
|
extern const struct __locale_data _nl_C_LC_TIME attribute_hidden;
|
|
#define ab_day_name(DAY) (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABDAY_1)+(DAY)].string)
|
|
#define ab_month_name(MON) (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABMON_1)+(MON)].string)
|
|
|
|
static const char format[] = "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n";
|
|
static char result[ 3+1+ 3+1+20+1+20+1+20+1+20+1+20+1 + 1];
|
|
|
|
|
|
static char *
|
|
asctime_internal (const struct tm *tp, char *buf, size_t buflen)
|
|
{
|
|
if (tp == NULL)
|
|
{
|
|
__set_errno (EINVAL);
|
|
return NULL;
|
|
}
|
|
|
|
/* We limit the size of the year which can be printed. Using the %d
|
|
format specifier used the addition of 1900 would overflow the
|
|
number and a negative vaue is printed. For some architectures we
|
|
could in theory use %ld or an evern larger integer format but
|
|
this would mean the output needs more space. This would not be a
|
|
problem if the 'asctime_r' interface would be defined sanely and
|
|
a buffer size would be passed. */
|
|
if (__glibc_unlikely (tp->tm_year > INT_MAX - 1900))
|
|
{
|
|
eoverflow:
|
|
__set_errno (EOVERFLOW);
|
|
return NULL;
|
|
}
|
|
|
|
int n = __snprintf (buf, buflen, format,
|
|
(tp->tm_wday < 0 || tp->tm_wday >= 7
|
|
? "???" : ab_day_name (tp->tm_wday)),
|
|
(tp->tm_mon < 0 || tp->tm_mon >= 12
|
|
? "???" : ab_month_name (tp->tm_mon)),
|
|
tp->tm_mday, tp->tm_hour, tp->tm_min,
|
|
tp->tm_sec, 1900 + tp->tm_year);
|
|
if (n < 0)
|
|
return NULL;
|
|
if (n >= buflen)
|
|
goto eoverflow;
|
|
|
|
return buf;
|
|
}
|
|
|
|
|
|
/* Like asctime, but write result to the user supplied buffer. The
|
|
buffer is only guaranteed to be 26 bytes in length. */
|
|
char *
|
|
__asctime_r (const struct tm *tp, char *buf)
|
|
{
|
|
return asctime_internal (tp, buf, 26);
|
|
}
|
|
weak_alias (__asctime_r, asctime_r)
|
|
|
|
|
|
/* Returns a string of the form "Day Mon dd hh:mm:ss yyyy\n"
|
|
which is the representation of TP in that form. */
|
|
char *
|
|
asctime (const struct tm *tp)
|
|
{
|
|
return asctime_internal (tp, result, sizeof (result));
|
|
}
|
|
libc_hidden_def (asctime)
|