void
main(int argc, char *argv[])
{
Dir *d;
char *p, *file;
int fd, len;
ARGBEGIN{
case 'p':
usepass = 1;
break;
case 'v':
verb = 1;
break;
case 'a':
convaes = 1;
break;
default:
usage();
} ARGEND
if(argc != 1)
usage();
file = argv[0];
/* get original key */
if(usepass) {
print("enter password file is encoded with\n");
getpass(&okey, nil, 0, 1);
} else {
getauthkey(&okey);
}
if(!verb) {
print("enter password to reencode with\n");
getpass(&nkey, nil, 0, 1);
}
fd = open(file, ORDWR);
if(fd < 0)
error("can't open %s: %r\n", file);
d = dirfstat(fd);
if(d == nil)
error("can't stat %s: %r\n", file);
len = d->length;
p = malloc(len);
if(p == nil)
error("out of memory");
if(read(fd, p, len) != len)
error("can't read key file: %r\n");
len = convert(&p, len);
if(pwrite(fd, p, len, 0) != len)
error("can't write key file: %r\n");
close(fd);
exits(nil);
}
void
main(int argc, char *argv[])
{
Dir *d;
char *p, *np, *file, key[DESKEYLEN];
int fd, len;
ARGBEGIN{
case 'v':
verb = 1;
break;
case 'p':
usepass = 1;
break;
default:
usage();
}ARGEND
if(argc != 1)
usage();
file = argv[0];
/* get original key */
if(usepass){
print("enter password file is encoded with\n");
getpass(authkey, nil, 0, 1);
} else
getauthkey(authkey);
print("enter password to reencode with\n");
getpass(key, nil, 0, 1);
fd = open(file, ORDWR);
if(fd < 0)
error("can't open %s: %r\n", file);
d = dirfstat(fd);
if(d == nil)
error("can't stat %s: %r\n", file);
len = d->length;
p = malloc(len);
if(!p)
error("out of memory");
np = malloc((len/OKEYDBLEN)*KEYDBLEN + KEYDBOFF);
if(!np)
error("out of memory");
if(read(fd, p, len) != len)
error("can't read key file: %r\n");
len = convert(p, np, key, len);
if(verb)
exits(0);
if(pwrite(fd, np, len, 0) != len)
error("can't write key file: %r\n");
close(fd);
exits(0);
}