| 1 | /* |
| 2 | * Copyright (C) 1997,2000 Ian Jackson |
| 3 | * |
| 4 | * This is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but |
| 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with userv-utils; if not, write to the Free Software |
| 16 | * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #include <stdio.h> |
| 20 | #include <assert.h> |
| 21 | #include <string.h> |
| 22 | |
| 23 | #include "blowfish.h" |
| 24 | |
| 25 | static void checkrw(int r, int exp_r, const char *op, FILE *f) { |
| 26 | if (ferror(f)) { perror(op); exit(3); } |
| 27 | if (feof(f)) { fprintf(stderr,"unexpected eof on %s\n",op); exit(2); } |
| 28 | assert(r==exp_r); |
| 29 | } |
| 30 | |
| 31 | int main(void) { |
| 32 | struct blowfish_cbc_state cbc; |
| 33 | unsigned char keybuf[BLOWFISH_MAXKEYBYTES], ivbuf[BLOWFISH_BLOCKBYTES]; |
| 34 | unsigned char ibuf[BLOWFISH_BLOCKBYTES], obuf[BLOWFISH_BLOCKBYTES]; |
| 35 | int r; |
| 36 | |
| 37 | r= fread(keybuf,1,sizeof(keybuf),stdin); checkrw(r,sizeof(keybuf),"input",stdin); |
| 38 | blowfish_loadkey(&cbc.ek,keybuf,sizeof(keybuf)); |
| 39 | |
| 40 | r= fread(ibuf,1,sizeof(ivbuf),stdin); checkrw(r,sizeof(ivbuf),"input",stdin); |
| 41 | blowfish_cbc_setiv(&cbc,ivbuf); |
| 42 | |
| 43 | for (;;) { |
| 44 | r= fread(ibuf,1,sizeof(ibuf),stdin); if (r<sizeof(ibuf) && r>=0) break; |
| 45 | checkrw(r,sizeof(ibuf),"input",stdin); |
| 46 | blowfish_cbc_encrypt(&cbc,ibuf,obuf); |
| 47 | r= fwrite(obuf,1,sizeof(obuf),stdout); checkrw(r,sizeof(obuf),"output",stdout); |
| 48 | } |
| 49 | memset(ibuf+r,sizeof(ibuf)-r,sizeof(ibuf)-r); |
| 50 | blowfish_cbc_encrypt(&cbc,ibuf,obuf); |
| 51 | r= fwrite(obuf,1,sizeof(obuf),stdout); checkrw(r,sizeof(obuf),"output",stdout); |
| 52 | return 0; |
| 53 | }; |