Subversion Repositories planix.SVN

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

int
opasstokey(char *key, char *p)
{
        uchar t[10];
        int c, n;

        n = strlen(p);
        memset(t, ' ', sizeof t);
        if(n < 5)
                return 0;
        if(n > 10)
                n = 10;
        strncpy((char*)t, p, n);
        if(n >= 9){
                c = p[8] & 0xf;
                if(n == 10)
                        c += p[9] << 4;
                for(n = 0; n < 8; n++)
                        if(c & (1 << n))
                                t[n] -= ' ';
        }
        for(n = 0; n < 7; n++)
                key[n] = (t[n] >> n) + (t[n+1] << (8 - (n+1)));
        return 1;
}