#include <libc.h>
#include <authsrv.h>
-#define CHAR(x) *p++ = f->x
-#define SHORT(x) p[0] = f->x; p[1] = f->x>>8; p += 2
-#define VLONG(q) p[0] = (q); p[1] = (q)>>8; p[2] = (q)>>16; p[3] = (q)>>24; p += 4
-#define LONG(x) VLONG(f->x)
-#define STRING(x,n) memmove(p, f->x, n); p += n
+extern int form1B2M(char *ap, int n, uchar key[32]);
int
-convPR2M(Passwordreq *f, char *ap, char *key)
+convPR2M(Passwordreq *f, char *ap, int n, Ticket *t)
{
- int n;
uchar *p;
+ if(n < 1+2*PASSWDLEN+1+SECRETLEN)
+ return 0;
+
p = (uchar*)ap;
- CHAR(num);
- STRING(old, ANAMELEN);
- STRING(new, ANAMELEN);
- CHAR(changesecret);
- STRING(secret, SECRETLEN);
- n = p - (uchar*)ap;
- if(key)
- encrypt(key, ap, n);
- return n;
+ *p++ = f->num;
+ memmove(p, f->old, PASSWDLEN), p += PASSWDLEN;
+ memmove(p, f->new, PASSWDLEN), p += PASSWDLEN;
+ *p++ = f->changesecret;
+ memmove(p, f->secret, SECRETLEN), p += SECRETLEN;
+ switch(t->form){
+ case 0:
+ n = p - (uchar*)ap;
+ encrypt(t->key, ap, n);
+ return n;
+ case 1:
+ if(n < 12+2*PASSWDLEN+1+SECRETLEN+16)
+ return 0;
+ return form1B2M(ap, p - (uchar*)ap, t->key);
+ }
+
+ return 0;
}