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54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
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/*
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* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
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* of Technology.
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* For copying and distribution information, please see the file
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* <Copyright.MIT>.
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*
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* from: pkt_clen.c,v 4.7 88/11/15 16:56:36 jtkohl Exp $
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* $Id: pkt_clen.c,v 1.2 1994/07/19 19:26:09 g89r4222 Exp $
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*/
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#ifndef lint
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static char *rcsid =
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"$Id: pkt_clen.c,v 1.2 1994/07/19 19:26:09 g89r4222 Exp $";
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#endif /* lint */
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#include <krb.h>
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#include <prot.h>
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extern int krb_debug;
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extern int swap_bytes;
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/*
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* Given a pointer to an AUTH_MSG_KDC_REPLY packet, return the length of
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* its ciphertext portion. The external variable "swap_bytes" is assumed
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* to have been set to indicate whether or not the packet is in local
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* byte order. pkt_clen() takes this into account when reading the
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* ciphertext length out of the packet.
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*/
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pkt_clen(pkt)
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KTEXT pkt;
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{
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static unsigned short temp,temp2;
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int clen = 0;
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/* Start of ticket list */
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unsigned char *ptr = pkt_a_realm(pkt) + 10
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+ strlen((char *)pkt_a_realm(pkt));
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/* Finally the length */
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bcopy((char *)(++ptr),(char *)&temp,2); /* alignment */
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if (swap_bytes) {
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/* assume a short is 2 bytes?? */
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swab((char *)&temp,(char *)&temp2,2);
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temp = temp2;
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}
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clen = (int) temp;
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if (krb_debug)
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printf("Clen is %d\n",clen);
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return(clen);
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}
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