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-rw-r--r--libc/misc/time/strftime.c395
1 files changed, 0 insertions, 395 deletions
diff --git a/libc/misc/time/strftime.c b/libc/misc/time/strftime.c
deleted file mode 100644
index bde0d93d8..000000000
--- a/libc/misc/time/strftime.c
+++ /dev/null
@@ -1,395 +0,0 @@
-/* Copyright (C) 1991, 92, 93, 94, 95, 96 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 Library General Public License as
-published by the Free Software Foundation; either version 2 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
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
-
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <sys/types.h> /* Some systems define `time_t' here. */
-#include <sys/time.h>
-#include <time.h>
-#include <ctype.h>
-#include <limits.h>
-
-static unsigned int week (const struct tm *const, int, int);
-
-#define add(n, f) \
- do \
- { \
- i += (n); \
- if (i >= maxsize) \
- return 0; \
- else \
- if (p) \
- { \
- f; \
- p += (n); \
- } \
- } while (0)
-#define cpy(n, s) add((n), memcpy((void *) p, (void *) (s), (n)))
-
-#ifdef _LIBC
-#define fmt(n, args) add((n), if (sprintf args != (n)) return 0)
-#else
-#define fmt(n, args) add((n), sprintf args; if (strlen (p) != (n)) return 0)
-#endif
-
-
-
-/* Return the week in the year specified by TP,
- with weeks starting on STARTING_DAY. */
-static unsigned int week(const struct tm *const tp , int starting_day , int max_preceding )
-{
- int wday, dl, base;
-
- wday = tp->tm_wday - starting_day;
- if (wday < 0)
- wday += 7;
-
- /* Set DL to the day in the year of the first day of the week
- containing the day specified in TP. */
- dl = tp->tm_yday - wday;
-
- /* For the computation following ISO 8601:1988 we set the number of
- the week containing January 1st to 1 if this week has more than
- MAX_PRECEDING days in the new year. For ISO 8601 this number is
- 3, for the other representation it is 7 (i.e., not to be
- fulfilled). */
- base = ((dl + 7) % 7) > max_preceding ? 1 : 0;
-
- /* If DL is negative we compute the result as 0 unless we have to
- compute it according ISO 8601. In this case we have to return 53
- or 1 if the week containing January 1st has less than 4 days in
- the new year or not. If DL is not negative we calculate the
- number of complete weeks for our week (DL / 7) plus 1 (because
- only for DL < 0 we are in week 0/53 and plus the number of the
- first week computed in the last step. */
- return dl < 0 ? (dl < -max_preceding ? 53 : base)
- : base + 1 + dl / 7;
-}
-
-#ifndef __UCLIBC_HAS_LOCALE__
-extern char const __weekday_name[][10];
-extern char const __month_name[][10];
-#endif
-
-/* Write information from TP into S according to the format
- string FORMAT, writing no more that MAXSIZE characters
- (including the terminating '\0') and returning number of
- characters written. If S is NULL, nothing will be written
- anywhere, so to determine how many characters would be
- written, use NULL for S and (size_t) UINT_MAX for MAXSIZE. */
-size_t strftime( char *s , size_t maxsize , const char *format , register const struct tm *tp)
-{
- int hour12 = tp->tm_hour;
-#ifdef __UCLIBC_HAS_LOCALE__
- const char *const a_wkday = _NL_CURRENT (LC_TIME, ABDAY_1 + tp->tm_wday);
- const char *const f_wkday = _NL_CURRENT (LC_TIME, DAY_1 + tp->tm_wday);
- const char *const a_month = _NL_CURRENT (LC_TIME, ABMON_1 + tp->tm_mon);
- const char *const f_month = _NL_CURRENT (LC_TIME, MON_1 + tp->tm_mon);
- const char *const ampm = _NL_CURRENT (LC_TIME,
- hour12 > 11 ? PM_STR : AM_STR);
- size_t aw_len = strlen(a_wkday);
- size_t am_len = strlen(a_month);
- size_t ap_len = strlen (ampm);
-#else
- const char *const f_wkday = __weekday_name[tp->tm_wday];
- const char *const f_month = __month_name[tp->tm_mon];
- const char *const a_wkday = f_wkday;
- const char *const a_month = f_month;
- const char *const ampm = "AMPM" + 2 * (hour12 > 11);
- size_t aw_len = 3;
- size_t am_len = 3;
- size_t ap_len = 2;
-#endif
- size_t wkday_len = strlen(f_wkday);
- size_t month_len = strlen(f_month);
- const unsigned int y_week0 = week (tp, 0, 7);
- const unsigned int y_week1 = week (tp, 1, 7);
- const unsigned int y_week2 = week (tp, 1, 3);
- const char *zone;
- size_t zonelen;
- register size_t i = 0;
- register char *p = s;
- register const char *f;
- char number_fmt[5];
-
- /* Initialize the buffer we will use for the sprintf format for numbers. */
- number_fmt[0] = '%';
-
- /* The POSIX test suite assumes that setting
- the environment variable TZ to a new value before calling strftime()
- will influence the result (the %Z format) even if the information in
- TP is computed with a totally different time zone.
- This is bogus: though POSIX allows bad behavior like this,
- POSIX does not require it. Do the right thing instead. */
- zone = (const char *) tp->tm_zone;
- /* POSIX.1 8.1.1 requires that whenever strftime() is called, the
- time zone names contained in the external variable `tzname' shall
- be set as if the tzset() function had been called. */
- tzset ();
- zonelen = strlen (zone);
-
- if (hour12 > 12)
- hour12 -= 12;
- else
- if (hour12 == 0) hour12 = 12;
-
- for (f = format; *f != '\0'; ++f)
- {
- enum { pad_zero, pad_space, pad_none } pad; /* Padding for number. */
- unsigned int maxdigits; /* Max digits for numeric format. */
- unsigned int number_value; /* Numeric value to be printed. */
- const char *subfmt;
-
-#if HAVE_MBLEN
- if (!isascii(*f))
- {
- /* Non-ASCII, may be a multibyte. */
- int len = mblen(f, strlen(f));
- if (len > 0)
- {
- cpy(len, f);
- continue;
- }
- }
-#endif
-
- if (*f != '%')
- {
- add(1, *p = *f);
- continue;
- }
-
- /* Check for flags that can modify a number format. */
- ++f;
- switch (*f)
- {
- case '_':
- pad = pad_space;
- ++f;
- break;
- case '-':
- pad = pad_none;
- ++f;
- break;
- default:
- pad = pad_zero;
- break;
- }
-
- /* Now do the specified format. */
- switch (*f)
- {
- case '\0':
- case '%':
- add(1, *p = *f);
- break;
-
- case 'a':
- cpy(aw_len, a_wkday);
- break;
-
- case 'A':
- cpy(wkday_len, f_wkday);
- break;
-
- case 'b':
- case 'h': /* GNU extension. */
- cpy(am_len, a_month);
- break;
-
- case 'B':
- cpy(month_len, f_month);
- break;
-
- case 'c':
-#ifdef __UCLIBC_HAS_LOCALE__
- subfmt = _NL_CURRENT (LC_TIME, D_T_FMT);
-#else
- subfmt = "%a %b %d %H:%M:%S %Z %Y";
-#endif
- subformat:
- {
- size_t len = strftime (p, maxsize - i, subfmt, tp);
- if (len == 0 && *subfmt)
- return 0;
- add(len, );
- }
- break;
-
-#define DO_NUMBER(digits, value) \
- maxdigits = digits; number_value = value; goto do_number
-#define DO_NUMBER_NOPAD(digits, value) \
- maxdigits = digits; number_value = value; goto do_number_nopad
-
- case 'C':
- DO_NUMBER (2, (1900 + tp->tm_year) / 100);
-
- case 'x':
-#ifdef __UCLIBC_HAS_LOCALE__
- subfmt = _NL_CURRENT (LC_TIME, D_FMT);
- goto subformat;
-#endif
- /* Fall through. */
- case 'D': /* GNU extension. */
- subfmt = "%m/%d/%y";
- goto subformat;
-
- case 'd':
- DO_NUMBER (2, tp->tm_mday);
-
- case 'e': /* GNU extension: %d, but blank-padded. */
-#if 0
- DO_NUMBER_NOPAD (2, tp->tm_mday);
-#else
- DO_NUMBER (2, tp->tm_mday);
-#endif
-
- /* All numeric formats set MAXDIGITS and NUMBER_VALUE and then
- jump to one of these two labels. */
-
- do_number_nopad:
- /* Force `-' flag. */
- pad = pad_none;
-
- do_number:
- {
- /* Format the number according to the PAD flag. */
-
- register char *nf = &number_fmt[1];
- int printed;
-
- switch (pad)
- {
- case pad_zero:
- *nf++ = '0';
- case pad_space:
- *nf++ = '0' + maxdigits;
- case pad_none:
- *nf++ = 'u';
- *nf = '\0';
- }
-
-#ifdef _LIBC
- if (i + maxdigits >= maxsize)
- return 0;
- printed = sprintf (p, number_fmt, number_value);
- i += printed;
- p += printed;
-#else
- add (maxdigits, sprintf (p, number_fmt, number_value);
- printed = strlen (p));
-#endif
-
- break;
- }
-
-
- case 'H':
- DO_NUMBER (2, tp->tm_hour);
-
- case 'I':
- DO_NUMBER (2, hour12);
-
- case 'k': /* GNU extension. */
- DO_NUMBER_NOPAD (2, tp->tm_hour);
-
- case 'l': /* GNU extension. */
- DO_NUMBER_NOPAD (2, hour12);
-
- case 'j':
- DO_NUMBER (3, 1 + tp->tm_yday);
-
- case 'M':
- DO_NUMBER (2, tp->tm_min);
-
- case 'm':
- DO_NUMBER (2, tp->tm_mon + 1);
-
- case 'n': /* GNU extension. */
- add (1, *p = '\n');
- break;
-
- case 'p':
- cpy(ap_len, ampm);
- break;
-
- case 'R': /* GNU extension. */
- subfmt = "%H:%M";
- goto subformat;
-
- case 'r': /* GNU extension. */
- subfmt = "%I:%M:%S %p";
- goto subformat;
-
- case 'S':
- DO_NUMBER (2, tp->tm_sec);
-
- case 'X':
-#ifdef __UCLIBC_HAS_LOCALE__
- subfmt = _NL_CURRENT (LC_TIME, T_FMT);
- goto subformat;
-#endif
- /* Fall through. */
- case 'T': /* GNU extenstion. */
- subfmt = "%H:%M:%S";
- goto subformat;
-
- case 't': /* GNU extenstion. */
- add (1, *p = '\t');
- break;
-
- case 'U':
- DO_NUMBER (2, y_week0);
-
- case 'V':
- DO_NUMBER (2, y_week2);
-
- case 'W':
- DO_NUMBER (2, y_week1);
-
- case 'w':
- DO_NUMBER (1, tp->tm_wday);
-
- case 'Y':
- DO_NUMBER (4, 1900 + tp->tm_year);
-
- case 'y':
- DO_NUMBER (2, tp->tm_year % 100);
-
- case 'Z':
- /* The tzset() call might have changed the value. */
- if (!(zone && *zone) && tp->tm_isdst >= 0)
- zone = tzname[tp->tm_isdst];
- if (! zone)
- zone = ""; /* POSIX.2 requires the empty string here. */
- cpy(zonelen, zone);
- break;
-
- default:
- /* Bad format. */
- break;
- }
- }
-
- if (p)
- *p = '\0';
- return i;
-}
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