1998/0404/port/auth.c (diff list | history)

1997/0327/sys/src/9/port/auth.c:478,483 – 1998/0404/sys/src/9/port/auth.c:478,501 (short | long | prev | next)
Add authcheckread. rsc Fri Mar 4 12:44:25 2005
1993/0731		} /*
1998/0404		* reading authcheck after writing into it yields the * nonce key */ long authcheckread(Chan *c, char *a, int n) { Crypt *cp; cp = c->aux; if(cp == nil) error(Ebadarg); if(n < TICKETLEN)) error(Ebadarg); convT2M(&cp->t, a, nil); return sizeof(cp->t); } /*
1993/0731		* called by devcons() for #c/authenticator * * a read after a write of a ticket (or ticket+id) returns an authenticator
1997/0327/sys/src/9/port/auth.c:522,528 – 1998/0404/sys/src/9/port/auth.c:540,550
1993/0731		cp->a.num = AuthAc; memmove(cp->a.chal, cp->t.chal, CHALLEN); convA2M(&cp->a, cp->tbuf, cp->t.key); memmove(a, cp->tbuf, AUTHENTLEN);
1998/0404		if(n >= AUTHENTLEN) memmove(a, cp->tbuf, AUTHENTLEN); if(n >= AUTHENTLEN + TICKETLEN) convT2M(&cp->t, a+AUTHENTLEN, nil);
1993/0731
1993/0428		return n; }