请问，UNIX下的ctime（time_t *)函数的源码怎么找？__the_GNU_Library_License_Foundation_

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请问，UNIX下的ctime（time_t *)函数的源码怎么找？

来源: 互联网发布时间：2015-10-05

如题！
谢谢

摘自GNU/LINUX,RH9.0附带光盘源代码glibc.
ctime.c
/* Copyright (C) 1991, 1996 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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#undef __OPTIMIZE__ /* Avoid inline `ctime' function.  */
#include

#undef ctime

/* Return a string as returned by asctime which
   is the representation of *T in that form.  */
char *
ctime (const time_t *t)
{
  /* The C Standard says ctime (t) is equivalent to asctime (localtime (t)).
     In particular, ctime and asctime must yield the same pointer.  */
  return asctime (localtime (t));
}
----------------------------------------------
asctime.c
/* Copyright (C) 1991,1993,1995-1997,2000,2002 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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include "../locale/localeinfo.h"
#include
#include
#include

/* 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 %dn";
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 yyyyn"
   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)
{
  if (tp == NULL)
    {
      __set_errno (EINVAL);
      return NULL;
    }

  if (sprintf (buf, format,
       (tp->tm_wday tm_wday >= 7 ?
"???" : ab_day_name (tp->tm_wday)),
       (tp->tm_mon 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)