Import LibreSSL 4.0.0

3 files changed, 9 insertions, 223 deletions

diff --git a/compat/arc4random.h b/compat/arc4random.h
index ffa3239..fbf2dce 100644
--- a/compat/arc4random.h
+++ b/compat/arc4random.h
@@ -30,6 +30,9 @@
 #elif defined(_WIN32)
 #include "arc4random_win.h"
 
+#elif defined(__EMSCRIPTEN__)
+#include "arc4random_linux.h"
+
 #else
 #error "No arc4random hooks defined for this platform."
 
diff --git a/compat/posix_win.c b/compat/posix_win.c
index 3e78a07..bed8c84 100644
--- a/compat/posix_win.c
+++ b/compat/posix_win.c
@@ -9,6 +9,8 @@
 
 #define NO_REDEF_POSIX_FUNCTIONS
 
+#include <sys/time.h>
+
 #include <ws2tcpip.h>
 #include <windows.h>
 
@@ -164,9 +166,10 @@ static void noop_handler(const wchar_t *expression,	const wchar_t *function,
 }
 
 #define BEGIN_SUPPRESS_IPH \
-	int old_report_mode = _CrtSetReportMode(_CRT_ASSERT, 0); \
-	_invalid_parameter_handler old_handler = _set_thread_local_invalid_parameter_handler(noop_handler)
+	const int old_report_mode = _CrtSetReportMode(_CRT_ASSERT, 0); \
+	const _invalid_parameter_handler old_handler = _set_thread_local_invalid_parameter_handler(noop_handler)
 #define END_SUPPRESS_IPH \
+	(void)old_report_mode; /* Silence warning in release mode when _CrtSetReportMode compiles to void. */ \
 	_CrtSetReportMode(_CRT_ASSERT, old_report_mode); \
 	_set_thread_local_invalid_parameter_handler(old_handler)
 
@@ -305,7 +308,7 @@ int gettimeofday(struct timeval * tp, struct timezone * tzp)
 	time = ((uint64_t)file_time.dwLowDateTime);
 	time += ((uint64_t)file_time.dwHighDateTime) << 32;
 
-	tp->tv_sec = (long)((time - EPOCH) / 10000000L);
+	tp->tv_sec = (long long)((time - EPOCH) / 10000000L);
 	tp->tv_usec = (long)(system_time.wMilliseconds * 1000);
 	return 0;
 }
diff --git a/compat/timegm.c b/compat/timegm.c
deleted file mode 100644
index 2658445..0000000
--- a/compat/timegm.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- * ----------------------------------------------------------------------
- * Copyright © 2005-2014 Rich Felker, et al.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
- * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * ----------------------------------------------------------------------
- */
-
-#include <errno.h>
-#include <limits.h>
-#include <time.h>
-
-/* 2000-03-01 (mod 400 year, immediately after feb29 */
-#define LEAPOCH (946684800LL + 86400*(31+29))
-
-#define DAYS_PER_400Y (365*400 + 97)
-#define DAYS_PER_100Y (365*100 + 24)
-#define DAYS_PER_4Y   (365*4   + 1)
-
-static int __month_to_secs(int month, int is_leap)
-{
-	static const int secs_through_month[] = {
-		0, 31*86400, 59*86400, 90*86400,
-		120*86400, 151*86400, 181*86400, 212*86400,
-		243*86400, 273*86400, 304*86400, 334*86400 };
-	int t = secs_through_month[month];
-	if (is_leap && month >= 2) t+=86400;
-	return t;
-}
-
-static long long __year_to_secs(long long year, int *is_leap)
-{
-	if (year-2ULL <= 136) {
-		int y = year;
-		int leaps = (y-68)>>2;
-		if (!((y-68)&3)) {
-			leaps--;
-			if (is_leap) *is_leap = 1;
-		} else if (is_leap) *is_leap = 0;
-		return 31536000*(y-70) + 86400*leaps;
-	}
-
-	int cycles, centuries, leaps, rem;
-
-	if (!is_leap) is_leap = &(int){0};
-	cycles = (year-100) / 400;
-	rem = (year-100) % 400;
-	if (rem < 0) {
-		cycles--;
-		rem += 400;
-	}
-	if (!rem) {
-		*is_leap = 1;
-		centuries = 0;
-		leaps = 0;
-	} else {
-		if (rem >= 200) {
-			if (rem >= 300) centuries = 3, rem -= 300;
-			else centuries = 2, rem -= 200;
-		} else {
-			if (rem >= 100) centuries = 1, rem -= 100;
-			else centuries = 0;
-		}
-		if (!rem) {
-			*is_leap = 0;
-			leaps = 0;
-		} else {
-			leaps = rem / 4U;
-			rem %= 4U;
-			*is_leap = !rem;
-		}
-	}
-
-	leaps += 97*cycles + 24*centuries - *is_leap;
-
-	return (year-100) * 31536000LL + leaps * 86400LL + 946684800 + 86400;
-}
-
-static long long __tm_to_secs(const struct tm *tm)
-{
-	int is_leap;
-	long long year = tm->tm_year;
-	int month = tm->tm_mon;
-	if (month >= 12 || month < 0) {
-		int adj = month / 12;
-		month %= 12;
-		if (month < 0) {
-			adj--;
-			month += 12;
-		}
-		year += adj;
-	}
-	long long t = __year_to_secs(year, &is_leap);
-	t += __month_to_secs(month, is_leap);
-	t += 86400LL * (tm->tm_mday-1);
-	t += 3600LL * tm->tm_hour;
-	t += 60LL * tm->tm_min;
-	t += tm->tm_sec;
-	return t;
-}
-
-static int __secs_to_tm(long long t, struct tm *tm)
-{
-	long long days, secs;
-	int remdays, remsecs, remyears;
-	int qc_cycles, c_cycles, q_cycles;
-	int years, months;
-	int wday, yday, leap;
-	static const char days_in_month[] = {31,30,31,30,31,31,30,31,30,31,31,29};
-
-	/* Reject time_t values whose year would overflow int */
-	if (t < INT_MIN * 31622400LL || t > INT_MAX * 31622400LL)
-		return -1;
-
-	secs = t - LEAPOCH;
-	days = secs / 86400;
-	remsecs = secs % 86400;
-	if (remsecs < 0) {
-		remsecs += 86400;
-		days--;
-	}
-
-	wday = (3+days)%7;
-	if (wday < 0) wday += 7;
-
-	qc_cycles = days / DAYS_PER_400Y;
-	remdays = days % DAYS_PER_400Y;
-	if (remdays < 0) {
-		remdays += DAYS_PER_400Y;
-		qc_cycles--;
-	}
-
-	c_cycles = remdays / DAYS_PER_100Y;
-	if (c_cycles == 4) c_cycles--;
-	remdays -= c_cycles * DAYS_PER_100Y;
-
-	q_cycles = remdays / DAYS_PER_4Y;
-	if (q_cycles == 25) q_cycles--;
-	remdays -= q_cycles * DAYS_PER_4Y;
-
-	remyears = remdays / 365;
-	if (remyears == 4) remyears--;
-	remdays -= remyears * 365;
-
-	leap = !remyears && (q_cycles || !c_cycles);
-	yday = remdays + 31 + 28 + leap;
-	if (yday >= 365+leap) yday -= 365+leap;
-
-	years = remyears + 4*q_cycles + 100*c_cycles + 400*qc_cycles;
-
-	for (months=0; days_in_month[months] <= remdays; months++)
-		remdays -= days_in_month[months];
-
-	if (years+100 > INT_MAX || years+100 < INT_MIN)
-		return -1;
-
-	tm->tm_year = years + 100;
-	tm->tm_mon = months + 2;
-	if (tm->tm_mon >= 12) {
-		tm->tm_mon -=12;
-		tm->tm_year++;
-	}
-	tm->tm_mday = remdays + 1;
-	tm->tm_wday = wday;
-	tm->tm_yday = yday;
-
-	tm->tm_hour = remsecs / 3600;
-	tm->tm_min = remsecs / 60 % 60;
-	tm->tm_sec = remsecs % 60;
-
-	return 0;
-}
-
-#ifdef _WIN32
-struct tm *__gmtime_r(const time_t *t, struct tm *tm)
-{
-	if (__secs_to_tm(*t, tm) < 0) {
-		errno = EOVERFLOW;
-		return 0;
-	}
-	tm->tm_isdst = 0;
-	return tm;
-}
-#endif
-
-time_t timegm(struct tm *tm)
-{
-	struct tm new;
-	long long t = __tm_to_secs(tm);
-	if (__secs_to_tm(t, &new) < 0) {
-		errno = EOVERFLOW;
-		return -1;
-	}
-#if SIZEOF_TIME_T != 8
-	if (t > (long long)INT_MAX || t < (long long)INT_MIN) {
-		errno = EOVERFLOW;
-		return -1;
-	}
-#endif
-	*tm = new;
-	tm->tm_isdst = 0;
-	return t;
-}