Port to MinGW

1 files changed, 689 insertions, 0 deletions

diff --git a/butl/strptime.c.orig b/butl/strptime.c.orig
new file mode 100644
index 0000000..2be6358
--- /dev/null
+++ b/butl/strptime.c.orig
@@ -0,0 +1,689 @@
+/*-
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#ifndef NOID
+static char copyright[] __unused =
+"@(#) Copyright (c) 1994 Powerdog Industries.  All rights reserved.";
+static char sccsid[] __unused = "@(#)strptime.c	0.1 (Powerdog) 94/03/27";
+#endif /* !defined NOID */
+#endif /* not lint */
+__FBSDID("$FreeBSD$");
+
+#include "namespace.h"
+#include <time.h>
+#include <ctype.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+#include "un-namespace.h"
+#include "libc_private.h"
+#include "timelocal.h"
+#include "tzfile.h"
+
+static char * _strptime(const char *, const char *, struct tm *, int *, locale_t);
+
+#define	asizeof(a)	(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);
+}
+
+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;
+		}
+
+		Ealternative = 0;
+		Oalternative = 0;
+label:
+		c = *ptr++;
+		switch (c) {
+		case '%':
+			if (*buf++ != '%')
+				return (NULL);
+			break;
+
+		case '+':
+			buf = _strptime(buf, tptr->date_fmt, tm, GMTp, locale);
+			if (buf == NULL)
+				return (NULL);
+			flags |= FLAG_WDAY | FLAG_MONTH | FLAG_MDAY | FLAG_YEAR;
+			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 'F':
+			buf = _strptime(buf, "%Y-%m-%d", tm, GMTp, locale);
+			if (buf == NULL)
+				return (NULL);
+			flags |= FLAG_MONTH | FLAG_MDAY | FLAG_YEAR;
+			break;
+
+		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 's':
+			{
+			char *cp;
+			int sverrno;
+			long n;
+			time_t t;
+
+			sverrno = errno;
+			errno = 0;
+			n = strtol_l(buf, &cp, 10, locale);
+			if (errno == ERANGE || (long)(t = n) != n) {
+				errno = sverrno;
+				return (NULL);
+			}
+			errno = sverrno;
+			buf = cp;
+			if (gmtime_r(&t, tm) == NULL)
+				return (NULL);
+			*GMTp = 1;
+			flags |= FLAG_YDAY | FLAG_WDAY | FLAG_MONTH |
+			    FLAG_MDAY | FLAG_YEAR;
+			}
+			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 'Z':
+			{
+			const char *cp;
+			char *zonestr;
+
+			for (cp = buf; *cp &&
+			     isupper_l((unsigned char)*cp, locale); ++cp) {
+				/*empty*/}
+			if (cp - buf) {
+				zonestr = alloca(cp - buf + 1);
+				strncpy(zonestr, buf, cp - buf);
+				zonestr[cp - buf] = '\0';
+				tzset();
+				if (0 == strcmp(zonestr, "GMT") ||
+				    0 == strcmp(zonestr, "UTC")) {
+				    *GMTp = 1;
+				} else if (0 == strcmp(zonestr, tzname[0])) {
+				    tm->tm_isdst = 0;
+				} else if (0 == strcmp(zonestr, tzname[1])) {
+				    tm->tm_isdst = 1;
+				} else {
+				    return (NULL);
+				}
+				buf += cp - buf;
+			}
+			}
+			break;
+
+		case 'z':
+			{
+			int sign = 1;
+
+			if (*buf != '+') {
+				if (*buf == '-')
+					sign = -1;
+				else
+					return (NULL);
+			}
+
+			buf++;
+			i = 0;
+			for (len = 4; len > 0; len--) {
+				if (isdigit_l((unsigned char)*buf, locale)) {
+					i *= 10;
+					i += *buf - '0';
+					buf++;
+				} else
+					return (NULL);
+			}
+
+			tm->tm_hour -= sign * (i / 100);
+			tm->tm_min  -= sign * (i % 100);
+			*GMTp = 1;
+			}
+			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);
+}
+
+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);
+	if (ret && gmt) {
+		time_t t = timegm(tm);
+
+		localtime_r(&t, tm);
+	}
+
+	return (ret);
+}
+
+char *
+strptime(const char * __restrict buf, const char * __restrict fmt,
+    struct tm * __restrict tm)
+{
+	return strptime_l(buf, fmt, tm, __get_locale());
+}