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2.5-18.1

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This commit is contained in:
Jakub Jelinek
2007-07-12 18:26:36 +00:00
parent 7d58530341
commit 0ecb606cb6
6215 changed files with 494638 additions and 305010 deletions
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66
time/asctime.c
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@ -1,4 +1,5 @@
/* Copyright (C) 1991,1993,1995-1997,2000,2002 Free Software Foundation, Inc.
/* Copyright (C) 1991,1993,1995-1997,2000,2002,2005
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
@ -18,6 +19,7 @@
#include "../locale/localeinfo.h"
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <time.h>
@ -29,17 +31,9 @@ extern const struct locale_data _nl_C_LC_TIME attribute_hidden;
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];
/* 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_r (tp, result);
}
libc_hidden_def (asctime)
char *
__asctime_r (const struct tm *tp, char *buf)
static char *
asctime_internal (const struct tm *tp, char *buf, size_t buflen)
{
if (tp == NULL)
{
@ -47,15 +41,51 @@ __asctime_r (const struct tm *tp, char *buf)
return NULL;
}
if (sprintf (buf, 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) < 0)
/* 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 (__builtin_expect (tp->tm_year > INT_MAX - 1900, 0))
{
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)