3ef57504 |
1 | /**/ |
2 | |
3 | #include <stdio.h> |
4 | #include <assert.h> |
5 | #include <string.h> |
6 | |
7 | #include "blowfish.h" |
8 | |
9 | static void checkrw(int r, int exp_r, const char *op, FILE *f) { |
10 | if (ferror(f)) { perror(op); exit(3); } |
11 | if (feof(f)) { fprintf(stderr,"unexpected eof on %s\n",op); exit(2); } |
12 | assert(r==exp_r); |
13 | } |
14 | |
15 | int main(void) { |
16 | struct blowfish_cbc_state cbc; |
17 | unsigned char keybuf[BLOWFISH_MAXKEYBYTES], ivbuf[BLOWFISH_BLOCKBYTES]; |
18 | unsigned char ibuf[BLOWFISH_BLOCKBYTES], obuf[BLOWFISH_BLOCKBYTES]; |
19 | int r; |
20 | |
21 | r= fread(keybuf,1,sizeof(keybuf),stdin); checkrw(r,sizeof(keybuf),"input",stdin); |
22 | blowfish_loadkey(&cbc.ek,keybuf,sizeof(keybuf)); |
23 | |
24 | r= fread(ibuf,1,sizeof(ivbuf),stdin); checkrw(r,sizeof(ivbuf),"input",stdin); |
25 | blowfish_cbc_setiv(&cbc,ivbuf); |
26 | |
27 | for (;;) { |
28 | r= fread(ibuf,1,sizeof(ibuf),stdin); if (r<sizeof(ibuf) && r>=0) break; |
29 | checkrw(r,sizeof(ibuf),"input",stdin); |
30 | blowfish_cbc_encrypt(&cbc,ibuf,obuf); |
31 | r= fwrite(obuf,1,sizeof(obuf),stdout); checkrw(r,sizeof(obuf),"output",stdout); |
32 | } |
33 | memset(ibuf+r,sizeof(ibuf)-r,sizeof(ibuf)-r); |
34 | blowfish_cbc_encrypt(&cbc,ibuf,obuf); |
35 | r= fwrite(obuf,1,sizeof(obuf),stdout); checkrw(r,sizeof(obuf),"output",stdout); |
36 | return 0; |
37 | }; |