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-rw-r--r--butl/strptime.c629
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diff --git a/butl/strptime.c b/butl/strptime.c
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--- a/butl/strptime.c
+++ /dev/null
@@ -1,629 +0,0 @@
-/*-
- * Copyright (c) 2014 Gary Mills
- * Copyright 2011, Nexenta Systems, Inc. All rights reserved.
- * Copyright (c) 1994 Powerdog Industries. All rights reserved.
- *
- * Copyright (c) 2011 The FreeBSD Foundation
- * All rights reserved.
- * Portions of this software were developed by David Chisnall
- * under sponsorship from the FreeBSD Foundation.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY POWERDOG INDUSTRIES ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE POWERDOG INDUSTRIES BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
- * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * The views and conclusions contained in the software and documentation
- * are those of the authors and should not be interpreted as representing
- * official policies, either expressed or implied, of Powerdog Industries.
- */
-
-// Fallback implementation of strptime() designed for Windows/gcc combination
-// when neither POSIX strptime() nor proper std::get_time() are available. No
-// locale support is provided, so the function works as if "C" locale is set.
-// FreeBSD libc strptime.c source file is taken as a basis (saved in
-// strptime.orig). POSIX non-compliant extensions are removed. Most of
-// #include directives are removed as reference internal headers, some
-// #define directives are added instead. The content of included
-// timelocal.{h,c} files is mostly commented out, having just required
-// lc_time_T struct and _C_time_locale constant definitions left. Otherwise the
-// code is kept untouched as much as possible.
-//
-
-#include <ctype.h> // isspace(), isdigit()
-#include <string.h> // _strnicmp()
-
-#include "timelocal.h" // lc_time_T
-#include "timelocal.c" // _C_time_locale
-
-#define isspace_l(c, l) isspace(c)
-#define isdigit_l(c, l) isdigit(c)
-#define strncasecmp_l(s1, s2, n, l) _strnicmp(s1, s2, n)
-
-#define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
-#define FIX_LOCALE(l) l=l
-
-#define TM_YEAR_BASE 1900
-#define TM_SUNDAY 0
-#define TM_MONDAY 1
-
-typedef unsigned char u_char;
-
-// Stubs replacing the real locale support.
-//
-typedef const lc_time_T* locale_t;
-
-static locale_t
-__get_locale ()
-{
- return &_C_time_locale;
-}
-
-static const struct lc_time_T *
-__get_current_time_locale (locale_t l)
-{
- return l;
-}
-
-// From this point the code is unchanged, if not to count non-standard
-// specifiers support removal and the replacement of tabs with spaces.
-//
-static char *
-_strptime(const char *, const char *, struct tm *, int *, locale_t);
-
-#define asizeof(a) ((int)(sizeof(a) / sizeof((a)[0])))
-
-#define FLAG_NONE (1 << 0)
-#define FLAG_YEAR (1 << 1)
-#define FLAG_MONTH (1 << 2)
-#define FLAG_YDAY (1 << 3)
-#define FLAG_MDAY (1 << 4)
-#define FLAG_WDAY (1 << 5)
-
-/*
- * Calculate the week day of the first day of a year. Valid for
- * the Gregorian calendar, which began Sept 14, 1752 in the UK
- * and its colonies. Ref:
- * http://en.wikipedia.org/wiki/Determination_of_the_day_of_the_week
- */
-
-static int
-first_wday_of(int year)
-{
- return (((2 * (3 - (year / 100) % 4)) + (year % 100) +
- ((year % 100) / 4) + (isleap(year) ? 6 : 0) + 1) % 7);
-}
-
-// Remove Glibc extensions (%F, %Z, %z, %s) to make implementation compliant
-// with POSIX strptime() and to simplify porting.
-//
-static char *
-_strptime(const char *buf, const char *fmt, struct tm *tm, int *GMTp,
- locale_t locale)
-{
- char c;
- const char *ptr;
- int day_offset = -1, wday_offset;
- int week_offset;
- int i, len;
- int flags;
- int Ealternative, Oalternative;
- const struct lc_time_T *tptr = __get_current_time_locale(locale);
- static int start_of_month[2][13] = {
- {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
- {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366}
- };
-
- flags = FLAG_NONE;
-
- ptr = fmt;
- while (*ptr != 0) {
- c = *ptr++;
-
- if (c != '%') {
- if (isspace_l((unsigned char)c, locale))
- while (*buf != 0 &&
- isspace_l((unsigned char)*buf, locale))
- buf++;
- else if (c != *buf++)
- return (NULL);
- continue;
- }
-
- // Skip according to
- // http://pubs.opengroup.org/onlinepubs/9699919799/functions/strptime.html
- //
- c = *ptr;
- if (c == '+' || c == '0')
- ptr++;
-
- Ealternative = 0;
- Oalternative = 0;
-label:
- c = *ptr++;
- switch (c) {
- case '%':
- if (*buf++ != '%')
- return (NULL);
- break;
-
- case 'C':
- if (!isdigit_l((unsigned char)*buf, locale))
- return (NULL);
-
- /* XXX This will break for 3-digit centuries. */
- len = 2;
- for (i = 0; len && *buf != 0 &&
- isdigit_l((unsigned char)*buf, locale); buf++) {
- i *= 10;
- i += *buf - '0';
- len--;
- }
- if (i < 19)
- return (NULL);
-
- tm->tm_year = i * 100 - TM_YEAR_BASE;
- flags |= FLAG_YEAR;
-
- break;
-
- case 'c':
- buf = _strptime(buf, tptr->c_fmt, tm, GMTp, locale);
- if (buf == NULL)
- return (NULL);
- flags |= FLAG_WDAY | FLAG_MONTH | FLAG_MDAY | FLAG_YEAR;
- break;
-
- case 'D':
- buf = _strptime(buf, "%m/%d/%y", tm, GMTp, locale);
- if (buf == NULL)
- return (NULL);
- flags |= FLAG_MONTH | FLAG_MDAY | FLAG_YEAR;
- break;
-
- case 'E':
- if (Ealternative || Oalternative)
- break;
- Ealternative++;
- goto label;
-
- case 'O':
- if (Ealternative || Oalternative)
- break;
- Oalternative++;
- goto label;
-
- case 'R':
- buf = _strptime(buf, "%H:%M", tm, GMTp, locale);
- if (buf == NULL)
- return (NULL);
- break;
-
- case 'r':
- buf = _strptime(buf, tptr->ampm_fmt, tm, GMTp, locale);
- if (buf == NULL)
- return (NULL);
- break;
-
- case 'T':
- buf = _strptime(buf, "%H:%M:%S", tm, GMTp, locale);
- if (buf == NULL)
- return (NULL);
- break;
-
- case 'X':
- buf = _strptime(buf, tptr->X_fmt, tm, GMTp, locale);
- if (buf == NULL)
- return (NULL);
- break;
-
- case 'x':
- buf = _strptime(buf, tptr->x_fmt, tm, GMTp, locale);
- if (buf == NULL)
- return (NULL);
- flags |= FLAG_MONTH | FLAG_MDAY | FLAG_YEAR;
- break;
-
- case 'j':
- if (!isdigit_l((unsigned char)*buf, locale))
- return (NULL);
-
- len = 3;
- for (i = 0; len && *buf != 0 &&
- isdigit_l((unsigned char)*buf, locale); buf++){
- i *= 10;
- i += *buf - '0';
- len--;
- }
- if (i < 1 || i > 366)
- return (NULL);
-
- tm->tm_yday = i - 1;
- flags |= FLAG_YDAY;
-
- break;
-
- case 'M':
- case 'S':
- if (*buf == 0 ||
- isspace_l((unsigned char)*buf, locale))
- break;
-
- if (!isdigit_l((unsigned char)*buf, locale))
- return (NULL);
-
- len = 2;
- for (i = 0; len && *buf != 0 &&
- isdigit_l((unsigned char)*buf, locale); buf++){
- i *= 10;
- i += *buf - '0';
- len--;
- }
-
- if (c == 'M') {
- if (i > 59)
- return (NULL);
- tm->tm_min = i;
- } else {
- if (i > 60)
- return (NULL);
- tm->tm_sec = i;
- }
-
- break;
-
- case 'H':
- case 'I':
- case 'k':
- case 'l':
- /*
- * Of these, %l is the only specifier explicitly
- * documented as not being zero-padded. However,
- * there is no harm in allowing zero-padding.
- *
- * XXX The %l specifier may gobble one too many
- * digits if used incorrectly.
- */
- if (!isdigit_l((unsigned char)*buf, locale))
- return (NULL);
-
- len = 2;
- for (i = 0; len && *buf != 0 &&
- isdigit_l((unsigned char)*buf, locale); buf++) {
- i *= 10;
- i += *buf - '0';
- len--;
- }
- if (c == 'H' || c == 'k') {
- if (i > 23)
- return (NULL);
- } else if (i > 12)
- return (NULL);
-
- tm->tm_hour = i;
-
- break;
-
- case 'p':
- /*
- * XXX This is bogus if parsed before hour-related
- * specifiers.
- */
- len = strlen(tptr->am);
- if (strncasecmp_l(buf, tptr->am, len, locale) == 0) {
- if (tm->tm_hour > 12)
- return (NULL);
- if (tm->tm_hour == 12)
- tm->tm_hour = 0;
- buf += len;
- break;
- }
-
- len = strlen(tptr->pm);
- if (strncasecmp_l(buf, tptr->pm, len, locale) == 0) {
- if (tm->tm_hour > 12)
- return (NULL);
- if (tm->tm_hour != 12)
- tm->tm_hour += 12;
- buf += len;
- break;
- }
-
- return (NULL);
-
- case 'A':
- case 'a':
- for (i = 0; i < asizeof(tptr->weekday); i++) {
- len = strlen(tptr->weekday[i]);
- if (strncasecmp_l(buf, tptr->weekday[i],
- len, locale) == 0)
- break;
- len = strlen(tptr->wday[i]);
- if (strncasecmp_l(buf, tptr->wday[i],
- len, locale) == 0)
- break;
- }
- if (i == asizeof(tptr->weekday))
- return (NULL);
-
- buf += len;
- tm->tm_wday = i;
- flags |= FLAG_WDAY;
- break;
-
- case 'U':
- case 'W':
- /*
- * XXX This is bogus, as we can not assume any valid
- * information present in the tm structure at this
- * point to calculate a real value, so just check the
- * range for now.
- */
- if (!isdigit_l((unsigned char)*buf, locale))
- return (NULL);
-
- len = 2;
- for (i = 0; len && *buf != 0 &&
- isdigit_l((unsigned char)*buf, locale); buf++) {
- i *= 10;
- i += *buf - '0';
- len--;
- }
- if (i > 53)
- return (NULL);
-
- if (c == 'U')
- day_offset = TM_SUNDAY;
- else
- day_offset = TM_MONDAY;
-
-
- week_offset = i;
-
- break;
-
- case 'w':
- if (!isdigit_l((unsigned char)*buf, locale))
- return (NULL);
-
- i = *buf - '0';
- if (i > 6)
- return (NULL);
-
- tm->tm_wday = i;
- flags |= FLAG_WDAY;
-
- break;
-
- case 'e':
- /*
- * With %e format, our strftime(3) adds a blank space
- * before single digits.
- */
- if (*buf != 0 &&
- isspace_l((unsigned char)*buf, locale))
- buf++;
- /* FALLTHROUGH */
- case 'd':
- /*
- * The %e specifier was once explicitly documented as
- * not being zero-padded but was later changed to
- * equivalent to %d. There is no harm in allowing
- * such padding.
- *
- * XXX The %e specifier may gobble one too many
- * digits if used incorrectly.
- */
- if (!isdigit_l((unsigned char)*buf, locale))
- return (NULL);
-
- len = 2;
- for (i = 0; len && *buf != 0 &&
- isdigit_l((unsigned char)*buf, locale); buf++) {
- i *= 10;
- i += *buf - '0';
- len--;
- }
- if (i > 31)
- return (NULL);
-
- tm->tm_mday = i;
- flags |= FLAG_MDAY;
-
- break;
-
- case 'B':
- case 'b':
- case 'h':
- for (i = 0; i < asizeof(tptr->month); i++) {
- if (Oalternative) {
- if (c == 'B') {
- len = strlen(tptr->alt_month[i]);
- if (strncasecmp_l(buf,
- tptr->alt_month[i],
- len, locale) == 0)
- break;
- }
- } else {
- len = strlen(tptr->month[i]);
- if (strncasecmp_l(buf, tptr->month[i],
- len, locale) == 0)
- break;
- }
- }
- /*
- * Try the abbreviated month name if the full name
- * wasn't found and Oalternative was not requested.
- */
- if (i == asizeof(tptr->month) && !Oalternative) {
- for (i = 0; i < asizeof(tptr->month); i++) {
- len = strlen(tptr->mon[i]);
- if (strncasecmp_l(buf, tptr->mon[i],
- len, locale) == 0)
- break;
- }
- }
- if (i == asizeof(tptr->month))
- return (NULL);
-
- tm->tm_mon = i;
- buf += len;
- flags |= FLAG_MONTH;
-
- break;
-
- case 'm':
- if (!isdigit_l((unsigned char)*buf, locale))
- return (NULL);
-
- len = 2;
- for (i = 0; len && *buf != 0 &&
- isdigit_l((unsigned char)*buf, locale); buf++) {
- i *= 10;
- i += *buf - '0';
- len--;
- }
- if (i < 1 || i > 12)
- return (NULL);
-
- tm->tm_mon = i - 1;
- flags |= FLAG_MONTH;
-
- break;
-
- case 'Y':
- case 'y':
- if (*buf == 0 ||
- isspace_l((unsigned char)*buf, locale))
- break;
-
- if (!isdigit_l((unsigned char)*buf, locale))
- return (NULL);
-
- len = (c == 'Y') ? 4 : 2;
- for (i = 0; len && *buf != 0 &&
- isdigit_l((unsigned char)*buf, locale); buf++) {
- i *= 10;
- i += *buf - '0';
- len--;
- }
- if (c == 'Y')
- i -= TM_YEAR_BASE;
- if (c == 'y' && i < 69)
- i += 100;
- if (i < 0)
- return (NULL);
-
- tm->tm_year = i;
- flags |= FLAG_YEAR;
-
- break;
-
- case 'n':
- case 't':
- while (isspace_l((unsigned char)*buf, locale))
- buf++;
- break;
-
- default:
- return (NULL);
- }
- }
-
- if (!(flags & FLAG_YDAY) && (flags & FLAG_YEAR)) {
- if ((flags & (FLAG_MONTH | FLAG_MDAY)) ==
- (FLAG_MONTH | FLAG_MDAY)) {
- tm->tm_yday = start_of_month[isleap(tm->tm_year +
- TM_YEAR_BASE)][tm->tm_mon] + (tm->tm_mday - 1);
- flags |= FLAG_YDAY;
- } else if (day_offset != -1) {
- /* Set the date to the first Sunday (or Monday)
- * of the specified week of the year.
- */
- if (!(flags & FLAG_WDAY)) {
- tm->tm_wday = day_offset;
- flags |= FLAG_WDAY;
- }
- tm->tm_yday = (7 -
- first_wday_of(tm->tm_year + TM_YEAR_BASE) +
- day_offset) % 7 + (week_offset - 1) * 7 +
- tm->tm_wday - day_offset;
- flags |= FLAG_YDAY;
- }
- }
-
- if ((flags & (FLAG_YEAR | FLAG_YDAY)) == (FLAG_YEAR | FLAG_YDAY)) {
- if (!(flags & FLAG_MONTH)) {
- i = 0;
- while (tm->tm_yday >=
- start_of_month[isleap(tm->tm_year +
- TM_YEAR_BASE)][i])
- i++;
- if (i > 12) {
- i = 1;
- tm->tm_yday -=
- start_of_month[isleap(tm->tm_year +
- TM_YEAR_BASE)][12];
- tm->tm_year++;
- }
- tm->tm_mon = i - 1;
- flags |= FLAG_MONTH;
- }
- if (!(flags & FLAG_MDAY)) {
- tm->tm_mday = tm->tm_yday -
- start_of_month[isleap(tm->tm_year + TM_YEAR_BASE)]
- [tm->tm_mon] + 1;
- flags |= FLAG_MDAY;
- }
- if (!(flags & FLAG_WDAY)) {
- i = 0;
- wday_offset = first_wday_of(tm->tm_year);
- while (i++ <= tm->tm_yday) {
- if (wday_offset++ >= 6)
- wday_offset = 0;
- }
- tm->tm_wday = wday_offset;
- flags |= FLAG_WDAY;
- }
- }
-
- return ((char *)buf);
-}
-
-static char *
-strptime_l(const char * __restrict buf, const char * __restrict fmt,
- struct tm * __restrict tm, locale_t loc)
-{
- char *ret;
- int gmt;
- FIX_LOCALE(loc);
-
- gmt = 0;
- ret = _strptime(buf, fmt, tm, &gmt, loc);
-
- return (ret);
-}
-
-static char *
-strptime(const char * __restrict buf, const char * __restrict fmt,
- struct tm * __restrict tm)
-{
- return strptime_l(buf, fmt, tm, __get_locale());
-}