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