Commit | Line | Data |
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f0e54a99 | 1 | /* |
c07be359 | 2 | * This file is part of ipif, part of userv-utils |
f0e54a99 | 3 | * |
9028e234 IJ |
4 | * Copyright 1996-2013 Ian Jackson <ijackson@chiark.greenend.org.uk> |
5 | * Copyright 1998 David Damerell <damerell@chiark.greenend.org.uk> | |
6 | * Copyright 1999,2003 | |
7 | * Chancellor Masters and Scholars of the University of Cambridge | |
8 | * Copyright 2010 Tony Finch <fanf@dotat.at> | |
9 | * | |
f0e54a99 | 10 | * This is free software; you can redistribute it and/or modify it |
11 | * under the terms of the GNU General Public License as published by | |
9028e234 | 12 | * the Free Software Foundation; either version 3 of the License, or |
f0e54a99 | 13 | * (at your option) any later version. |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, but | |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
9028e234 | 21 | * along with userv-utils; if not, see http://www.gnu.org/licenses/. |
f0e54a99 | 22 | */ |
3ef57504 | 23 | |
24 | #include <stdio.h> | |
25 | #include <assert.h> | |
26 | #include <string.h> | |
27 | ||
28 | #include "blowfish.h" | |
29 | ||
30 | static void checkrw(int r, int exp_r, const char *op, FILE *f) { | |
31 | if (ferror(f)) { perror(op); exit(3); } | |
32 | if (feof(f)) { fprintf(stderr,"unexpected eof on %s\n",op); exit(2); } | |
33 | assert(r==exp_r); | |
34 | } | |
35 | ||
36 | int main(void) { | |
37 | struct blowfish_cbc_state cbc; | |
38 | unsigned char keybuf[BLOWFISH_MAXKEYBYTES], ivbuf[BLOWFISH_BLOCKBYTES]; | |
39 | unsigned char ibuf[BLOWFISH_BLOCKBYTES], obuf[BLOWFISH_BLOCKBYTES]; | |
40 | int r; | |
41 | ||
42 | r= fread(keybuf,1,sizeof(keybuf),stdin); checkrw(r,sizeof(keybuf),"input",stdin); | |
43 | blowfish_loadkey(&cbc.ek,keybuf,sizeof(keybuf)); | |
44 | ||
45 | r= fread(ibuf,1,sizeof(ivbuf),stdin); checkrw(r,sizeof(ivbuf),"input",stdin); | |
46 | blowfish_cbc_setiv(&cbc,ivbuf); | |
47 | ||
48 | for (;;) { | |
49 | r= fread(ibuf,1,sizeof(ibuf),stdin); if (r<sizeof(ibuf) && r>=0) break; | |
50 | checkrw(r,sizeof(ibuf),"input",stdin); | |
51 | blowfish_cbc_encrypt(&cbc,ibuf,obuf); | |
52 | r= fwrite(obuf,1,sizeof(obuf),stdout); checkrw(r,sizeof(obuf),"output",stdout); | |
53 | } | |
54 | memset(ibuf+r,sizeof(ibuf)-r,sizeof(ibuf)-r); | |
55 | blowfish_cbc_encrypt(&cbc,ibuf,obuf); | |
56 | r= fwrite(obuf,1,sizeof(obuf),stdout); checkrw(r,sizeof(obuf),"output",stdout); | |
57 | return 0; | |
58 | }; |