diff options
Diffstat (limited to 'time/asctime.c')
-rw-r--r-- | time/asctime.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/time/asctime.c b/time/asctime.c deleted file mode 100644 index b57de7dc8b..0000000000 --- a/time/asctime.c +++ /dev/null @@ -1,89 +0,0 @@ -/* Copyright (C) 1991-2017 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 - <http://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) |