40 lines
799 B
C
40 lines
799 B
C
#include <u.h>
|
|
#include <lib9.h>
|
|
#include <authsrv.h>
|
|
|
|
extern int form1M2B(char *ap, int n, uint8_t key[32]);
|
|
|
|
int
|
|
convM2PR(char *ap, int n, Passwordreq *f, Ticket *t)
|
|
{
|
|
uint8_t *p, buf[MAXPASSREQLEN];
|
|
int m;
|
|
|
|
memset(f, 0, sizeof(Passwordreq));
|
|
if(t->form == 0){
|
|
m = 1+2*ANAMELEN+1+SECRETLEN;
|
|
if(n < m)
|
|
return -m;
|
|
memmove(buf, ap, m);
|
|
decrypt(t->key, buf, m);
|
|
} else {
|
|
m = 12+2*ANAMELEN+1+SECRETLEN+16;
|
|
if(n < m)
|
|
return -m;
|
|
memmove(buf, ap, m);
|
|
if(form1M2B((char*)buf, m, t->key) < 0)
|
|
return m;
|
|
}
|
|
p = buf;
|
|
f->num = *p++;
|
|
memmove(f->old, p, ANAMELEN), p += ANAMELEN;
|
|
memmove(f->new, p, ANAMELEN), p += ANAMELEN;
|
|
f->changesecret = *p++;
|
|
memmove(f->secret, p, SECRETLEN);
|
|
f->old[ANAMELEN-1] = 0;
|
|
f->new[ANAMELEN-1] = 0;
|
|
f->secret[SECRETLEN-1] = 0;
|
|
|
|
return m;
|
|
}
|