view uptools/libcoding/utf8_decode2.c @ 497:74610c4f10f7

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.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 25 May 2019 20:44:05 +0000
parents 83c755829e31
children 6bf473f77fc4
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/*
 * This library module implements the function for converting UTF-8 input
 * to UCS-2 in outgoing SMS composition.
 */

#include <sys/types.h>

utf8_to_ucs2(inbuf, outbuf, outmax, outlenp)
	u_char *inbuf;
	u_short *outbuf;
	unsigned outmax, *outlenp;
{
	u_char *ip = inbuf;
	u_short *op = outbuf;
	unsigned outcnt = 0, c, n, uni;

	while (c = *ip++) {
		if (c < 0x80) {
			uni = c;
			goto gotuni;
		}
		if (c < 0xC0 || c > 0xEF)
			return(-1);
		uni = c & 0x1F;
		if (c >= 0xE0)
			n = 2;
		else
			n = 1;
		for (; n; n--) {
			c = *ip++;
			if (c < 0x80 || c > 0xBF)
				return(-1);
			uni <<= 6;
			uni |= c & 0x3F;
		}
gotuni:		if (outcnt >= outmax)
			return(-2);
		*op++ = uni;
		outcnt++;
	}
	*outlenp = outcnt;
	return(0);
}