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#include <u.h>
#include <libc.h>
#include <authsrv.h>
int
_asgetresp(int fd, Ticket *t, Authenticator *a, Authkey *k)
{
char buf[MAXTICKETLEN+MAXAUTHENTLEN], err[ERRMAX];
int n, m;
memset(t, 0, sizeof(Ticket));
if(a != nil)
memset(a, 0, sizeof(Authenticator));
strcpy(err, "AS protocol botch");
errstr(err, ERRMAX);
if(_asrdresp(fd, buf, 0) < 0)
return -1;
for(n = 0; (m = convM2T(buf, n, t, k)) <= 0; n += m){
m = -m;
if(m <= n || m > sizeof(buf))
return -1;
m -= n;
if(readn(fd, buf+n, m) != m)
return -1;
}
if(a != nil){
for(n = 0; (m = convM2A(buf, n, a, t)) <= 0; n += m){
m = -m;
if(m <= n || m > sizeof(buf))
return -1;
m -= n;
if(readn(fd, buf+n, m) != m)
return -1;
}
}
errstr(err, ERRMAX);
return 0;
}
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