--- /dev/null
+/**/
+
+#include <stdio.h>
+#include <assert.h>
+#include <string.h>
+
+#include "blowfish.h"
+
+static void checkrw(int r, int exp_r, const char *op, FILE *f) {
+ if (ferror(f)) { perror(op); exit(3); }
+ if (feof(f)) { fprintf(stderr,"unexpected eof on %s\n",op); exit(2); }
+ assert(r==exp_r);
+}
+
+int main(void) {
+ struct blowfish_cbc_state cbc;
+ unsigned char keybuf[BLOWFISH_MAXKEYBYTES], ivbuf[BLOWFISH_BLOCKBYTES];
+ unsigned char ibuf[BLOWFISH_BLOCKBYTES], obuf[BLOWFISH_BLOCKBYTES];
+ int r;
+
+ r= fread(keybuf,1,sizeof(keybuf),stdin); checkrw(r,sizeof(keybuf),"input",stdin);
+ blowfish_loadkey(&cbc.ek,keybuf,sizeof(keybuf));
+
+ r= fread(ibuf,1,sizeof(ivbuf),stdin); checkrw(r,sizeof(ivbuf),"input",stdin);
+ blowfish_cbc_setiv(&cbc,ivbuf);
+
+ for (;;) {
+ r= fread(ibuf,1,sizeof(ibuf),stdin); if (r<sizeof(ibuf) && r>=0) break;
+ checkrw(r,sizeof(ibuf),"input",stdin);
+ blowfish_cbc_encrypt(&cbc,ibuf,obuf);
+ r= fwrite(obuf,1,sizeof(obuf),stdout); checkrw(r,sizeof(obuf),"output",stdout);
+ }
+ memset(ibuf+r,sizeof(ibuf)-r,sizeof(ibuf)-r);
+ blowfish_cbc_encrypt(&cbc,ibuf,obuf);
+ r= fwrite(obuf,1,sizeof(obuf),stdout); checkrw(r,sizeof(obuf),"output",stdout);
+ return 0;
+};