Don't use 16-bit integers as counters. The code won't be any faster on

Don't use 16-bit integers as counters.  The code won't be any faster on
anything that can run Wireshark (it might be slower), and if the maximum
count value is 16-bit, you can loop forever if the maximum count value
happens to be 65535.

(Yes, this means that

	guint i, j;

		...

	for (i = 0; i < j; i++)
		...

risks looping forever if j is 2^32-1, and the same applies to 64-bit
counters.  There are probably fewer protocols with 32-bit counts, and
probably even fewer with 64-bit counts, but the way it should be done in
those cases, for safety, is

	i = 0;
	for (;;) {
		if (i >= j)
			break;

		...

		if (i == j - 1)
			break;
	}

or something such as that.)

Fixes bug 6809.

#BACKPORT
Will schedule for 1.6.x.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@40967 f5534014-38df-0310-8fa8-9805f1628bb7