64 lines
1.7 KiB
C
64 lines
1.7 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: mk_err.c,v 4.4 88/11/15 16:33:36 jtkohl Exp $
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* $Id: mk_err.c,v 1.2 1994/07/19 19:25:54 g89r4222 Exp $
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*/
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#ifndef lint
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static char *rcsid =
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"$Id: mk_err.c,v 1.2 1994/07/19 19:25:54 g89r4222 Exp $";
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#endif /* lint */
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#include <sys/types.h>
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#include <krb.h>
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#include <prot.h>
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#include <strings.h>
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/*
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* This routine creates a general purpose error reply message. It
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* doesn't use KTEXT because application protocol may have long
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* messages, and may want this part of buffer contiguous to other
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* stuff.
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*
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* The error reply is built in "p", using the error code "e" and
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* error text "e_string" given. The length of the error reply is
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* returned.
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*
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* The error reply is in the following format:
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*
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* unsigned char KRB_PROT_VERSION protocol version no.
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* unsigned char AUTH_MSG_APPL_ERR message type
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* (least significant
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* bit of above) HOST_BYTE_ORDER local byte order
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* 4 bytes e given error code
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* string e_string given error text
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*/
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long krb_mk_err(p,e,e_string)
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u_char *p; /* Where to build error packet */
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long e; /* Error code */
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char *e_string; /* Text of error */
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{
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u_char *start;
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start = p;
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/* Create fixed part of packet */
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*p++ = (unsigned char) KRB_PROT_VERSION;
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*p = (unsigned char) AUTH_MSG_APPL_ERR;
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*p++ |= HOST_BYTE_ORDER;
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/* Add the basic info */
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bcopy((char *)&e,(char *)p,4); /* err code */
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p += sizeof(e);
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(void) strcpy((char *)p,e_string); /* err text */
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p += strlen(e_string);
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/* And return the length */
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return p-start;
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}
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