readcache
static int verbose, readcache; /* options */
readcache = 1;
readcache = 0;
if (readcache && is_nonempty_file(cachename)) {
if (!readcache(xpublic, xsecret, &deskey)) {
if (!readcache(xpublic, xsecret, &result->cryptkeyres_u.deskey)) {
static int readcache( char *, char *, des_block * );