Adding upstream version 1:7.0.3.upstream/1%7.0.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 599 insertions, 0 deletions

diff --git a/src/util-strptime.c b/src/util-strptime.c
new file mode 100644
index 0000000..e0475ec
--- /dev/null
+++ b/src/util-strptime.c
@@ -0,0 +1,599 @@
+/*	$NetBSD: strptime.c,v 1.36 2012/03/13 21:13:48 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1997, 1998, 2005, 2008 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code was contributed to The NetBSD Foundation by Klaus Klein.
+ * Heavily optimised by David Laight
+ *
+ * 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 THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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.
+ */
+/*
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: strptime.c,v 1.36 2012/03/13 21:13:48 christos Exp $");
+#endif
+
+#include "namespace.h"
+#include <sys/localedef.h>
+*/
+#include "suricata-common.h"
+#ifndef HAVE_STRPTIME
+#include <ctype.h>
+#include <locale.h>
+#include <string.h>
+#include <time.h>
+#include <stdint.h>
+/*
+#include <tzfile.h>
+#include "private.h"
+
+#ifdef __weak_alias
+__weak_alias(strptime,_strptime)
+#endif
+*/
+
+#define	_ctloc(x)		(_CurrentTimeLocale->x)
+
+/*
+ * We do not implement alternate representations. However, we always
+ * check whether a given modifier is allowed for a certain conversion.
+ */
+#define ALT_E			0x01
+#define ALT_O			0x02
+#define	LEGAL_ALT(x)		{ if (alt_format & ~(x)) return NULL; }
+
+static int TM_YEAR_BASE = 1900;
+static char gmt[] = { "GMT" };
+static char utc[] = { "UTC" };
+/* RFC-822/RFC-2822 */
+static const char * const nast[5] = {
+       "EST",    "CST",    "MST",    "PST",    "\0\0\0"
+};
+static const char * const nadt[5] = {
+       "EDT",    "CDT",    "MDT",    "PDT",    "\0\0\0"
+};
+static const char * const am_pm[2] = {
+       "am", "pm"
+};
+static const char * const day[7] = {
+	"sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday"
+};
+static const char * const abday[7] = {
+	"sun", "mon", "tue", "wed", "thu", "fri", "sat"
+};
+static const char * const mon[12] = {
+	"january", "february", "march", "april", "may", "june", "july", "august", "september", "october", "november", "december"
+};
+static const char * const abmon[12] = {
+	"jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec"
+};
+
+static const u_char *conv_num(const unsigned char *, int *, unsigned int, unsigned int);
+static const u_char *find_string(const u_char *, int *, const char * const *,
+	const char * const *, int);
+
+char *
+strptime(const char *buf, const char *fmt, struct tm *tm)
+{
+	unsigned char c;
+	const unsigned char *bp, *ep;
+	int alt_format, i, split_year = 0, neg = 0, offs;
+	const char *new_fmt;
+
+	bp = (const u_char *)buf;
+
+	while (bp != NULL && (c = *fmt++) != '\0') {
+		/* Clear `alternate' modifier prior to new conversion. */
+		alt_format = 0;
+		i = 0;
+
+		/* Eat up white-space. */
+		if (isspace(c)) {
+			while (isspace(*bp))
+				bp++;
+			continue;
+		}
+
+		if (c != '%')
+			goto literal;
+
+
+again:		switch (c = *fmt++) {
+		case '%':	/* "%%" is converted to "%". */
+literal:
+			if (c != *bp++)
+				return NULL;
+			LEGAL_ALT(0);
+			continue;
+
+		/*
+		 * "Alternative" modifiers. Just set the appropriate flag
+		 * and start over again.
+		 */
+		case 'E':	/* "%E?" alternative conversion modifier. */
+			LEGAL_ALT(0);
+			alt_format |= ALT_E;
+			goto again;
+
+		case 'O':	/* "%O?" alternative conversion modifier. */
+			LEGAL_ALT(0);
+			alt_format |= ALT_O;
+			goto again;
+
+		/*
+		 * "Complex" conversion rules, implemented through recursion.
+		 */
+		/* we do not need 'c'
+      case 'c': Date and time, using the locale's format.
+			new_fmt = _ctloc(d_t_fmt);
+			goto recurse;
+      */
+
+		case 'D':	/* The date as "%m/%d/%y". */
+			new_fmt = "%m/%d/%y";
+			LEGAL_ALT(0);
+			goto recurse;
+
+		case 'F':	/* The date as "%Y-%m-%d". */
+			new_fmt = "%Y-%m-%d";
+			LEGAL_ALT(0);
+			goto recurse;
+
+		case 'R':	/* The time as "%H:%M". */
+			new_fmt = "%H:%M";
+			LEGAL_ALT(0);
+			goto recurse;
+
+		case 'r':	/* The time in 12-hour clock representation. */
+			new_fmt = "%I:%M:S %p";//_ctloc(t_fmt_ampm);
+			LEGAL_ALT(0);
+			goto recurse;
+
+		case 'T':	/* The time as "%H:%M:%S". */
+			new_fmt = "%H:%M:%S";
+			LEGAL_ALT(0);
+			goto recurse;
+
+		/* we don't use 'X'
+      case 'X': The time, using the locale's format.
+			new_fmt =_ctloc(t_fmt);
+			goto recurse;
+      */
+
+		/* we do not need 'x'
+      case 'x': The date, using the locale's format.
+			new_fmt =_ctloc(d_fmt);*/
+recurse:
+			bp = (const u_char *)strptime((const char *)bp,
+							    new_fmt, tm);
+			LEGAL_ALT(ALT_E);
+			continue;
+
+		/*
+		 * "Elementary" conversion rules.
+		 */
+		case 'A':	/* The day of week, using the locale's form. */
+		case 'a':
+			bp = find_string(bp, &tm->tm_wday, day, abday, 7);
+			LEGAL_ALT(0);
+			continue;
+
+		case 'B':	/* The month, using the locale's form. */
+		case 'b':
+		case 'h':
+			bp = find_string(bp, &tm->tm_mon, mon, abmon, 12);
+			LEGAL_ALT(0);
+			continue;
+
+		case 'C':	/* The century number. */
+			i = 20;
+			bp = conv_num(bp, &i, 0, 99);
+
+			i = i * 100 - TM_YEAR_BASE;
+			if (split_year)
+				i += tm->tm_year % 100;
+			split_year = 1;
+			tm->tm_year = i;
+			LEGAL_ALT(ALT_E);
+			continue;
+
+		case 'd':	/* The day of month. */
+		case 'e':
+			bp = conv_num(bp, &tm->tm_mday, 1, 31);
+			LEGAL_ALT(ALT_O);
+			continue;
+
+		case 'k':	/* The hour (24-hour clock representation). */
+			LEGAL_ALT(0);
+			/* FALLTHROUGH */
+		case 'H':
+			bp = conv_num(bp, &tm->tm_hour, 0, 23);
+			LEGAL_ALT(ALT_O);
+			continue;
+
+		case 'l':	/* The hour (12-hour clock representation). */
+			LEGAL_ALT(0);
+			/* FALLTHROUGH */
+		case 'I':
+			bp = conv_num(bp, &tm->tm_hour, 1, 12);
+			if (tm->tm_hour == 12)
+				tm->tm_hour = 0;
+			LEGAL_ALT(ALT_O);
+			continue;
+
+		case 'j':	/* The day of year. */
+			i = 1;
+			bp = conv_num(bp, &i, 1, 366);
+			tm->tm_yday = i - 1;
+			LEGAL_ALT(0);
+			continue;
+
+		case 'M':	/* The minute. */
+			bp = conv_num(bp, &tm->tm_min, 0, 59);
+			LEGAL_ALT(ALT_O);
+			continue;
+
+		case 'm':	/* The month. */
+			i = 1;
+			bp = conv_num(bp, &i, 1, 12);
+			tm->tm_mon = i - 1;
+			LEGAL_ALT(ALT_O);
+			continue;
+
+		case 'p':	/* The locale's equivalent of AM/PM. */
+			bp = find_string(bp, &i, am_pm, NULL, 2);
+			if (tm->tm_hour > 11)
+				return NULL;
+			tm->tm_hour += i * 12;
+			LEGAL_ALT(0);
+			continue;
+
+		case 'S':	/* The seconds. */
+			bp = conv_num(bp, &tm->tm_sec, 0, 61);
+			LEGAL_ALT(ALT_O);
+			continue;
+
+#ifndef TIME_MAX
+#define TIME_MAX	INT64_MAX
+#endif
+		case 's':	/* seconds since the epoch */
+			{
+				time_t sse = 0;
+				uint64_t rulim = TIME_MAX;
+
+				if (*bp < '0' || *bp > '9') {
+					bp = NULL;
+					continue;
+				}
+
+				do {
+					sse *= 10;
+					sse += *bp++ - '0';
+					rulim /= 10;
+				} while (((uint64_t)sse * 10 <= TIME_MAX) &&
+					 rulim && *bp >= '0' && *bp <= '9');
+
+				if (sse < 0 || (uint64_t)sse > TIME_MAX) {
+					bp = NULL;
+					continue;
+				}
+
+				tm = localtime(&sse);
+            if (tm == NULL)
+					bp = NULL;
+			}
+			continue;
+
+		case 'U':	/* The week of year, beginning on sunday. */
+		case 'W':	/* The week of year, beginning on monday. */
+			/*
+			 * 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.
+			 */
+			 bp = conv_num(bp, &i, 0, 53);
+			 LEGAL_ALT(ALT_O);
+			 continue;
+
+		case 'w':	/* The day of week, beginning on sunday. */
+			bp = conv_num(bp, &tm->tm_wday, 0, 6);
+			LEGAL_ALT(ALT_O);
+			continue;
+
+		case 'u':	/* The day of week, monday = 1. */
+			bp = conv_num(bp, &i, 1, 7);
+			tm->tm_wday = i % 7;
+			LEGAL_ALT(ALT_O);
+			continue;
+
+		case 'g':	/* The year corresponding to the ISO week
+				 * number but without the century.
+				 */
+			bp = conv_num(bp, &i, 0, 99);
+			continue;
+
+		case 'G':	/* The year corresponding to the ISO week
+				 * number with century.
+				 */
+			do
+				bp++;
+			while (isdigit(*bp));
+			continue;
+
+		case 'V':	/* The ISO 8601:1988 week number as decimal */
+			bp = conv_num(bp, &i, 0, 53);
+			continue;
+
+		case 'Y':	/* The year. */
+			i = TM_YEAR_BASE;	/* just for data sanity... */
+			bp = conv_num(bp, &i, 0, 9999);
+			tm->tm_year = i - TM_YEAR_BASE;
+			LEGAL_ALT(ALT_E);
+			continue;
+
+		case 'y':	/* The year within 100 years of the epoch. */
+			/* LEGAL_ALT(ALT_E | ALT_O); */
+			bp = conv_num(bp, &i, 0, 99);
+
+			if (split_year)
+				/* preserve century */
+				i += (tm->tm_year / 100) * 100;
+			else {
+				split_year = 1;
+				if (i <= 68)
+					i = i + 2000 - TM_YEAR_BASE;
+				else
+					i = i + 1900 - TM_YEAR_BASE;
+			}
+			tm->tm_year = i;
+			continue;
+
+		case 'Z':
+			tzset();
+			if (strncasecmp((const char *)bp, gmt, 3) == 0
+          || strncasecmp((const char *)bp, utc, 3) == 0) {
+				tm->tm_isdst = 0;
+#ifdef TM_GMTOFF
+				tm->TM_GMTOFF = 0;
+#endif
+#ifdef TM_ZONE
+				tm->TM_ZONE = gmt;
+#endif
+				bp += 3;
+			} else {
+				ep = find_string(bp, &i,
+						 (const char * const *)tzname,
+						  NULL, 2);
+				if (ep != NULL) {
+					tm->tm_isdst = i;
+#ifdef TM_GMTOFF
+					tm->TM_GMTOFF = -(timezone);
+#endif
+#ifdef TM_ZONE
+					tm->TM_ZONE = tzname[i];
+#endif
+				}
+				bp = ep;
+			}
+			continue;
+
+		case 'z':
+			/*
+			 * We recognize all ISO 8601 formats:
+			 * Z	= Zulu time/UTC
+			 * [+-]hhmm
+			 * [+-]hh:mm
+			 * [+-]hh
+			 * We recognize all RFC-822/RFC-2822 formats:
+			 * UT|GMT
+			 *          North American : UTC offsets
+			 * E[DS]T = Eastern : -4 | -5
+			 * C[DS]T = Central : -5 | -6
+			 * M[DS]T = Mountain: -6 | -7
+			 * P[DS]T = Pacific : -7 | -8
+			 *          Military
+			 * [A-IL-M] = -1 ... -9 (J not used)
+			 * [N-Y]  = +1 ... +12
+			 */
+			while (isspace(*bp))
+				bp++;
+
+			switch (*bp++) {
+			case 'G':
+				if (*bp++ != 'M')
+					return NULL;
+				/*FALLTHROUGH*/
+			case 'U':
+				if (*bp++ != 'T')
+					return NULL;
+				/*FALLTHROUGH*/
+			case 'Z':
+				tm->tm_isdst = 0;
+#ifdef TM_GMTOFF
+				tm->TM_GMTOFF = 0;
+#endif
+#ifdef TM_ZONE
+				tm->TM_ZONE = utc;
+#endif
+				continue;
+			case '+':
+				neg = 0;
+				break;
+			case '-':
+				neg = 1;
+				break;
+			default:
+				--bp;
+				ep = find_string(bp, &i, nast, NULL, 4);
+				if (ep != NULL) {
+#ifdef TM_GMTOFF
+					tm->TM_GMTOFF = -5 - i;
+#endif
+#ifdef TM_ZONE
+					tm->TM_ZONE = __UNCONST(nast[i]);
+#endif
+					bp = ep;
+					continue;
+				}
+				ep = find_string(bp, &i, nadt, NULL, 4);
+				if (ep != NULL) {
+					tm->tm_isdst = 1;
+#ifdef TM_GMTOFF
+					tm->TM_GMTOFF = -4 - i;
+#endif
+#ifdef TM_ZONE
+					tm->TM_ZONE = __UNCONST(nadt[i]);
+#endif
+					bp = ep;
+					continue;
+				}
+
+				if ((*bp >= 'A' && *bp <= 'I') ||
+				    (*bp >= 'L' && *bp <= 'Y')) {
+#ifdef TM_GMTOFF
+					/* Argh! No 'J'! */
+					if (*bp >= 'A' && *bp <= 'I')
+						tm->TM_GMTOFF =
+						    ('A' - 1) - (int)*bp;
+					else if (*bp >= 'L' && *bp <= 'M')
+						tm->TM_GMTOFF = 'A' - (int)*bp;
+					else if (*bp >= 'N' && *bp <= 'Y')
+						tm->TM_GMTOFF = (int)*bp - 'M';
+#endif
+#ifdef TM_ZONE
+					tm->TM_ZONE = NULL; /* XXX */
+#endif
+					bp++;
+					continue;
+				}
+				return NULL;
+			}
+			offs = 0;
+			for (i = 0; i < 4; ) {
+				if (isdigit(*bp)) {
+					offs = offs * 10 + (*bp++ - '0');
+					i++;
+					continue;
+				}
+				if (i == 2 && *bp == ':') {
+					bp++;
+					continue;
+				}
+				break;
+			}
+			switch (i) {
+			case 2:
+				offs *= 100;
+				break;
+			case 4:
+				i = offs % 100;
+				if (i >= 60)
+					return NULL;
+				/* Convert minutes into decimal */
+				offs = (offs / 100) * 100 + (i * 50) / 30;
+				break;
+			default:
+				return NULL;
+			}
+			if (neg)
+				offs = -offs;
+			tm->tm_isdst = 0;	/* XXX */
+#ifdef TM_GMTOFF
+			tm->TM_GMTOFF = offs;
+#endif
+#ifdef TM_ZONE
+			tm->TM_ZONE = NULL;	/* XXX */
+#endif
+			continue;
+
+		/*
+		 * Miscellaneous conversions.
+		 */
+		case 'n':	/* Any kind of white-space. */
+		case 't':
+			while (isspace(*bp))
+				bp++;
+			LEGAL_ALT(0);
+			continue;
+
+
+		default:	/* Unknown/unsupported conversion. */
+			return NULL;
+		}
+	}
+
+	return (char *)(bp);
+}
+
+
+static const u_char *
+conv_num(const unsigned char *buf, int *dest, unsigned int llim, unsigned int ulim)
+{
+	unsigned int result = 0;
+	unsigned char ch;
+
+	/* The limit also determines the number of valid digits. */
+	unsigned int rulim = ulim;
+
+	ch = *buf;
+	if (ch < '0' || ch > '9')
+		return NULL;
+
+	do {
+		result *= 10;
+		result += ch - '0';
+		rulim /= 10;
+		ch = *++buf;
+	} while ((result * 10 <= ulim) && rulim && ch >= '0' && ch <= '9');
+
+	if (result < llim || result > ulim)
+		return NULL;
+
+	*dest = result;
+	return buf;
+}
+
+static const u_char *
+find_string(const u_char *bp, int *tgt, const char * const *n1,
+		const char * const *n2, int c)
+{
+	int i;
+	size_t len;
+
+	/* check full name - then abbreviated ones */
+	for (; n1 != NULL; n1 = n2, n2 = NULL) {
+		for (i = 0; i < c; i++, n1++) {
+			len = strlen(*n1);
+			if (strncasecmp(*n1, (const char *)bp, len) == 0) {
+				*tgt = i;
+				return bp + len;
+			}
+		}
+	}
+
+	/* Nothing matched */
+	return NULL;
+}
+#endif /* HAVE_STRPTIME */