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-rw-r--r--butl/strptime.c.orig689
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diff --git a/butl/strptime.c.orig b/butl/strptime.c.orig
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+/*-
+ * 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());
+}
generated by cgit v1.1 at 2024-11-20 01:08:47 +0000