target-utils: added 10 ms delay at the end of abb_power_off() The deosmification of the ABB access code (replacement of osmo_delay_ms() bogus delays with correctly-timed ones, which are significantly shorter) had one annoying side effect: when executing the poweroff command from any of the programs, one last '=' prompt character was being sent (and received by the x86 host) as the Calypso board powers off. With delays being shorter now, the abb_power_off() function was returning and the standalone program's main loop was printing its prompt before the Iota chip fully executed the switch-off sequence! I thought about inserting an endless tight loop at the end of the abb_power_off() function, but the implemented solution of a 10 ms delay is a little nicer IMO because if the DEVOFF operation doesn't happen for some reason in a manual hacking scenario, there won't be an artificial blocker in the form of a tight loop keeping us from further poking around.

/*
 * This library module implements decoding of long hex strings,
 * such as SMS PDUs.
 */

#include <sys/types.h>
#include <ctype.h>

decode_hex_line(inbuf, outbuf, outmax)
	char *inbuf;
	u_char *outbuf;
	unsigned outmax;
{
	char *inp = inbuf;
	u_char *outp = outbuf;
	unsigned outcnt = 0;
	int c, d[2], i;

	while (*inp) {
		if (!isxdigit(inp[0]) || !isxdigit(inp[1]))
			return(-1);
		if (outcnt >= outmax)
			break;
		for (i = 0; i < 2; i++) {
			c = *inp++;
			if (isdigit(c))
				d[i] = c - '0';
			else if (isupper(c))
				d[i] = c - 'A' + 10;
			else
				d[i] = c - 'a' + 10;
		}
		*outp++ = (d[0] << 4) | d[1];
		outcnt++;
	}
	return outcnt;
}