38 lines
591 B
C
38 lines
591 B
C
#include <u.h>
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#include <lib9.h>
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#include <authsrv.h>
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int
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_asgetticket(int fd, Ticketreq *tr, char *tbuf, int tbuflen)
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{
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char err[ERRMAX];
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int i, n, m, r;
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strcpy(err, "AS protocol botch");
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errstr(err, ERRMAX);
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if(_asrequest(fd, tr) < 0)
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return -1;
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if(_asrdresp(fd, tbuf, 0) < 0)
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return -1;
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r = 0;
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for(i = 0; i<2; i++){
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for(n=0; (m = convM2T(tbuf, n, nil, nil)) <= 0; n += m){
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m = -m;
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if(m <= n || m > tbuflen)
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return -1;
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m -= n;
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if(readn(fd, tbuf+n, m) != m)
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return -1;
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}
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r += n;
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tbuf += n;
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tbuflen -= n;
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}
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errstr(err, ERRMAX);
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return r;
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}
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