Keith Winstein
79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
/*
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Mosh: the mobile shell
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Copyright 2012 Keith Winstein
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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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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <assert.h>
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#include <string.h>
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#include <unistd.h>
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#include <iostream>
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#include "crypto.h"
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using namespace Crypto;
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int main( int argc, char *argv[] )
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{
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if ( argc != 2 ) {
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fprintf( stderr, "Usage: %s KEY\n", argv[ 0 ] );
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return 1;
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}
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try {
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Base64Key key( argv[ 1 ] );
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Session session( key );
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/* Read input */
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char *input = NULL;
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int total_size = 0;
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while ( 1 ) {
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unsigned char buf[ 16384 ];
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ssize_t bytes_read = read( STDIN_FILENO, buf, 16384 );
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if ( bytes_read == 0 ) { /* EOF */
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break;
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} else if ( bytes_read < 0 ) {
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perror( "read" );
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exit( 1 );
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} else {
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input = (char *)realloc( input, total_size + bytes_read );
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assert( input );
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memcpy( input + total_size, buf, bytes_read );
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total_size += bytes_read;
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}
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}
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string ciphertext( input, total_size );
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free( input );
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/* Decrypt message */
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Message message = session.decrypt( ciphertext );
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fprintf( stderr, "Nonce = %ld\n",
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(long)message.nonce.val() );
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cout << message.text;
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} catch ( CryptoException e ) {
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cerr << e.text << endl;
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exit( 1 );
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}
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return 0;
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}
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