chiark / gitweb /
Bugfixes, now seems to be getting there.
[userv-utils.git] / ipif / blowfishspeed.c
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 };