Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include <authsrv.h>

int
passtokey(char *key, char *p)
{
        uchar buf[ANAMELEN], *t;
        int i, n;

        n = strlen(p);
        if(n >= ANAMELEN)
                n = ANAMELEN-1;
        memset(buf, ' ', 8);
        t = buf;
        strncpy((char*)t, p, n);
        t[n] = 0;
        memset(key, 0, DESKEYLEN);
        for(;;){
                for(i = 0; i < DESKEYLEN; i++)
                        key[i] = (t[i] >> i) + (t[i+1] << (8 - (i+1)));
                if(n <= 8)
                        return 1;
                n -= 8;
                t += 8;
                if(n < 8){
                        t -= 8 - n;
                        n = 8;
                }
                encrypt(key, t, 8);
        }
}