tor

commit 10ea3343b52104d9a1f81f2b0ff25e7c0d733fef
parent 42e12a3537fef04ab77defd6cb5581add439de43
Author: Nick Mathewson <nickm@torproject.org>
Date:   Tue, 19 Sep 2017 13:58:35 -0400

Avoid integer error in TEST_BITOPS tests

If "1" is not 64 bits wide already, then "1 << i" will not actually
work.

This bug only affects the TEST_BITOPS code, and shouldn't matter for
the actual use of the timeout code (except if/when it causes this
test to fail).

Reported by dcb314@hotmail.com.  Fix for bug 23583.  Not adding a
changes file, since this code is never compiled into Tor.

Diffstat:
M
src/ext/timeouts/timeout-bitops.c
 | 
3
++-

1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/ext/timeouts/timeout-bitops.c b/src/ext/timeouts/timeout-bitops.c
@@ -231,7 +231,8 @@ main(int c, char **v)
 	int result = 0;
 
 	for (i = 0; i <= 63; ++i) {
-		uint64_t x = 1 << i;
+		uint64_t x = 1;
+		x <<= i;
 		if (!check(x))
 			result = 1;
 		--x;