ref: 18046fd8153076782863f968db6fe1a1af0ddd2b
dir: /sys/src/libauthsrv/convPR2M.c/
#include <u.h> #include <libc.h> #include <authsrv.h> extern int form1B2M(char *ap, int n, uchar key[32]); int convPR2M(Passwordreq *f, char *ap, int n, Ticket *t) { uchar *p; if(n < 1+2*ANAMELEN+1+SECRETLEN) return 0; p = (uchar*)ap; *p++ = f->num; memmove(p, f->old, ANAMELEN), p += ANAMELEN; memmove(p, f->new, ANAMELEN), p += ANAMELEN; *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*ANAMELEN+1+SECRETLEN+16) return 0; return form1B2M(ap, p - (uchar*)ap, t->key); } return 0; }