81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
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/************************************************************************/
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/* SISCO SOFTWARE MODULE HEADER *****************************************/
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/************************************************************************/
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/* (c) Copyright Systems Integration Specialists Company, Inc., */
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/* 1986 - 2002, All Rights Reserved. */
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/* */
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/* PROPRIETARY AND CONFIDENTIAL */
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/* */
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/* MODULE NAME : are_objid.c */
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/* PRODUCT(S) : ASN1DE */
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/* */
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/* MODULE DESCRIPTION : */
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/* */
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/* GLOBAL FUNCTIONS DEFINED IN THIS MODULE : */
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/* */
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/* MODIFICATION LOG : */
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/* Date Who Rev Comments */
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/* -------- --- ------ ------------------------------------------- */
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/* 03/11/04 GLB 07 Remove "thisFileName" */
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/* 01/14/03 JRB 06 Avoid redundant logging of encode overrun. */
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/* 03/05/02 JRB 05 Eliminate warnings. */
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/* 01/22/02 JRB 04 Chg asn1r_end_of_buffer to asn1r_buf_start. */
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/* 12/20/01 JRB 03 Chg ASN1_CTXT to ASN1_ENC_CTXT. */
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/* 09/13/99 MDE 02 Added SD_CONST modifiers */
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/* 07/26/99 MDE 01 New module, derived from ae_objid.c */
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/************************************************************************/
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#include "glbtypes.h"
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#include "sysincs.h"
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#include "asn1r.h"
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#include "asn1log.h"
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/************************************************************************/
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/* Static functions in this module */
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static ST_VOID _wr_component (ASN1_ENC_CTXT *ac, ST_INT16);
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/************************************************************************/
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/* wr_objid */
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/* Function to write an object identifier data element to a message */
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/* being built. */
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/************************************************************************/
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ST_VOID asn1r_wr_objid (ASN1_ENC_CTXT *ac, ST_INT16 component_list[], ST_INT num_components)
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{
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ST_INT i;
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ST_INT16 icomp;
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for (i = num_components - 1; i > 1; i--)
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_wr_component(ac, component_list[i]);
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icomp = component_list[1] + component_list[0]*40;
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_wr_component(ac, icomp);
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}
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/************************************************************************/
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/* _wr_component */
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/* Function to write an integer to a field of octets in the following */
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/* format: [1xxxxxxx] ... 0xxxxxxx , where all but the last */
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/* octet starts with a 1 bit, and where the x's are the bits of the */
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/* binary integer input to the function (distributed 7 bits per octet).*/
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/************************************************************************/
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static ST_VOID _wr_component (ASN1_ENC_CTXT *ac, ST_INT16 icomp)
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{
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if (ac->asn1r_field_ptr -2 < ac->asn1r_buf_start)
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{
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ac->asn1r_encode_overrun = SD_TRUE;
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return;
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}
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if (icomp < 0x80)
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*(ac->asn1r_field_ptr--) = (ST_UCHAR) icomp;
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else
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{
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*(ac->asn1r_field_ptr--) = (ST_UCHAR) (icomp & 0x7F);
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*(ac->asn1r_field_ptr--) = (ST_UCHAR) (((icomp >> 7) & 0x7F) | 0x80);
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}
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}
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