191 lines
7.2 KiB
C
191 lines
7.2 KiB
C
/************************************************************************/
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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 - 2001, All Rights Reserved. */
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/* */
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/* PROPRIETARY AND CONFIDENTIAL */
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/* */
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/* MODULE NAME : rq_fread.c */
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/* PRODUCT(S) : MMSEASE, MMSEASE-LITE */
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/* */
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/* MODULE DESCRIPTION : */
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/* This module contains the requester portion of the file read. */
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/* It decodes the file read response (confirm) & encodes the */
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/* file read request. */
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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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/* 08/28/03 EJV 06 Corr spelling for 'receive'. */
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/* 12/20/01 JRB 05 Converted to use ASN1R (re-entrant ASN1) */
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/* 09/13/99 MDE 04 Added SD_CONST modifiers */
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/* 03/23/99 MDE 03 Changes to decode buffer allocation scheme */
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/* 06/15/98 MDE 02 Changes to allow compile under C++ */
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/* 07/03/97 MDE 01 Op-specific info buffer handling changes */
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/* 04/02/97 DTL 7.00 MMSEASE 7.0 release. See MODL70.DOC for */
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/* history. */
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/************************************************************************/
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#include "glbtypes.h"
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#include "sysincs.h"
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#include "mmsdefs.h"
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#include "mms_pfil.h"
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#include "asn1defs.h"
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/************************************************************************/
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/* variables global to the DECODE portion : */
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static FREAD_RESP_INFO *fop_info;
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/************************************************************************/
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/* variables global to the ENCODE portion : NONE */
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/************************************************************************/
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/* static functions with multiple references */
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static ST_VOID fread_file_data_done (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fread_get_fd_prim (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fread_get_fd_cstr (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fread_get_more_follows (ASN1_DEC_CTXT *aCtx);
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/************************************************************************/
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/* mms_file_read_rsp */
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/* This function is called from mmsdec when the opcode for this */
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/* operation is decoded. Setup state machine function pointers, etc. */
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/************************************************************************/
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ST_VOID mms_file_read_rsp (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("File Read Response");
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/* get storage for request information */
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fop_info = (FREAD_RESP_INFO *) _m_get_dec_buf (aCtx, sizeof (FREAD_RESP_INFO));
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fop_info->more_follows = SD_TRUE; /* set default value */
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ASN1R_TAG_ADD (aCtx, CTX,0, fread_get_fd_prim);
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ASN1R_TAG_ADD (aCtx, CTX|CONSTR, 0, fread_get_fd_cstr);
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}
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/************************************************************************/
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/* fread_get_fd_prim */
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/* file read response is being decoded: file data was encountered. */
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/************************************************************************/
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static ST_VOID fread_get_fd_prim (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fread_get_fd_prim");
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/* decode file data back onto itself */
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fop_info->filedata = aCtx->asn1r_field_ptr;
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if (asn1r_get_octstr (aCtx, fop_info->filedata)) /* read file data from message */
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asn1r_set_dec_err (aCtx, RESP_UNSPECIFIED);
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fread_file_data_done (aCtx); /* save octet count, setup to continue */
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}
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/************************************************************************/
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/* fread_get_fd_cstr */
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/* file read response is being decoded: file data was encountered. */
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/************************************************************************/
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static ST_VOID fread_get_fd_cstr (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fread_get_fd_cstr");
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/* decode file data back onto itself */
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fop_info->filedata = aCtx->asn1r_field_ptr;
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/* set up done decoding octet cstr destination */
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aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level] = fread_file_data_done;
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/* get file data from the received message */
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/* set maximum length to accept entire message */
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asn1r_get_octstr_cstr (aCtx, _mmsdec_msglen, fop_info->filedata);
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}
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/************************************************************************/
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/* fread_file_data_done */
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/* file read response is being decoded: end of file data constructor */
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/* This is called directly from prim octet or from c_done fun. */
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/************************************************************************/
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static ST_VOID fread_file_data_done (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("data_don");
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fop_info->fd_len = aCtx->asn1r_octetcount; /* save the file data length */
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/* set up done decoding file data cstr dest */
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ASN1R_TAG_ADD (aCtx, CTX, 1, fread_get_more_follows);
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_ms_set_cs_check (aCtx); /* check for Companion Standard info */
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}
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/************************************************************************/
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/* fread_get_more_follows */
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/* file read response is being decoded: more data follows indicator was */
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/* encountered, must be done now. */
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/************************************************************************/
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static ST_VOID fread_get_more_follows (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fread_get_more_follows");
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if (asn1r_get_bool (aCtx, &(fop_info->more_follows))) /* read more follows */
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asn1r_set_dec_err (aCtx, RESP_BAD_VALUE);
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_ms_set_cs_check (aCtx); /* check for Companion Standard info */
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}
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#ifndef MMS_LITE
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/************************************************************************/
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/************************************************************************/
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/* mp_fread */
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/* This function is called from either the application or the virtual */
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/* machine to ENCODE the file read request. */
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/************************************************************************/
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MMSREQ_PEND *mp_fread (ST_INT chan, FREAD_REQ_INFO *info_ptr)
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{
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return (_mms_req_send (MMSOP_FILE_READ,
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M_CAST_MK_FUN (_ms_mk_fread_req),
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chan,(ST_CHAR *)info_ptr));
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}
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#else
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/************************************************************************/
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/************************************************************************/
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/* mpl_fread */
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/* This function is called from either the application or the virtual */
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/* machine to ENCODE the file read request. */
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/************************************************************************/
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ST_RET mpl_fread (FREAD_REQ_INFO *info_ptr)
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{
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return (_mms_req_fin (MMSOP_FILE_READ,
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M_CAST_MK_FUN (_ms_mk_fread_req),
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(ST_CHAR *)info_ptr));
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}
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#endif
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/************************************************************************/
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/************************************************************************/
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/* _ms_mk_fread_req */
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/* ENCODE a file readectory REQUEST: */
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/************************************************************************/
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ST_VOID _ms_mk_fread_req (ASN1_ENC_CTXT *aCtx, FREAD_REQ_INFO *info)
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{
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asn1r_wr_i32 (aCtx, info->frsmid); /* write the frsmid */
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/* write the context specific tag for this opcode */
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asn1r_fin_prim (aCtx, MMSOP_FILE_READ,CTX);
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}
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