92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
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/* shavs.c */
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/*
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This file is part of the AVR-Crypto-Lib.
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Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file shavs.c
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* \author Daniel Otte
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* \date 2006-05-16
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* \license GPLv3 or later
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*
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*/
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#include <avr/pgmspace.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "hashfunction_descriptor.h"
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#include "shavs.h"
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#include "string-extras.h"
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#include "cli.h"
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hfdesc_t* algo=NULL;
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hfdesc_t** algolist=NULL;
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void shavs_listalgos(void){
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char option = 'a';
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cli_putstr_P(PSTR("\r\nDBG: &algolist: "));
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cli_hexdump(&algolist, 2);
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cli_putstr_P(PSTR("\r\nDBG: algolist[0]: "));
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cli_hexdump(algolist, 8);
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hfdesc_t* t;
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uint8_t i=0;
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cli_putstr_P(PSTR("\r\nthe following algorithms are available:\r\n"));
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while(option<='z' && (t=(hfdesc_t*)pgm_read_word(&(algolist[i])))){
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cli_putc('\t');
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cli_putc((t==algo)?'*':' ');
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cli_putc(option++);
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cli_putstr_P(PSTR(":\t"));
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cli_putstr_P((void*)(pgm_read_word(&(t->name))));
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cli_putstr_P(PSTR("\r\n"));
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i++;
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}
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}
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void shavs_setalgo(char* param){
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param = strstrip(param);
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if(param[1]=='\0'){ /* single letter specified */
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uint8_t i,option = param[0]-'a';
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if(!algolist){
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cli_putstr_P(PSTR("\r\nERROR: algolist not set!"));
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return;
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}
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for(i=0; i<=option; ++i){
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if((void*)pgm_read_word(&(algolist[i]))==NULL){
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cli_putstr_P(PSTR("\r\nERROR: invalid selection!"));
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return;
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}
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}
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algo=(hfdesc_t*)pgm_read_word(&(algolist[option]));
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} else { /* name specifyed */
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hfdesc_t* t=NULL;
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uint8_t i=0;
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while((t=(hfdesc_t*)pgm_read_word(&(algolist[i]))) &&
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strcasecmp_P(param, (void*)pgm_read_word(&(t->name))))
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++i;
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if(t){
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algo=t;
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}else{
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cli_putstr_P(PSTR("\r\nERROR: could not find \""));
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cli_putstr(param);
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cli_putstr_P(PSTR("\"!"));
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}
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}
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}
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