3 This file is part of the Crypto-avr-lib/microcrypt-lib.
4 Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * This tools should help to parse some input.
33 int getnextwordn(char *s, int n){ /* words are seperated by spaces, lf or cr */
37 }while(c==' ' || c=='\r' || c=='\n');
40 *s++ = c = uart_getc();
41 }while(c!=' ' && c!='\r' && c!='\n' && --n);
47 void readhex2buffer(void* buffer, int n){
51 // DEBUG_S("\r\nDBG: n="); DEBUG_B(n&0xff); DEBUG_S("\r\n");
54 if ('0'<= c && '9'>=c){
55 ((uint8_t*)buffer)[i] = c - '0';
57 c &= ~('A' ^ 'a'); /* make all uppercase */
58 if ('A'<= c && 'F'>=c){
59 ((uint8_t*)buffer)[i] = c - 'A' + 10;
61 /* oh shit, wrong char */
65 ((uint8_t*)buffer)[i] <<= 4;
68 if ('0'<= c && '9'>=c){
69 ((uint8_t*)buffer)[i] |= c - '0';
71 c &= ~('A' ^ 'a'); /* make all uppercase */
72 if ('A'<= c && 'F'>=c){
73 ((uint8_t*)buffer)[i] |= c - 'A' + 10;
75 /* oh shit, wrong char */
81 void uart_putptr(void* p){
82 uart_hexdump((void*) &p,2);