fcup-smsend: fixed bug in the handling of -W with no dest address argument The original code checked for argv[optind+1] when argv[optind] is NULL; on most systems this bogus code gets the first line of the environment, which is clearly not what we are after. Fixed the code to check argc instead.

	.text
	.code	32
	.globl	strlen
strlen:
	mov	r1, r0
1:	ldrb	r2, [r0], #1
	cmn	r2, #0
	bne	1b
	sbc	r0, r0, r1
	bx	lr