128 lines
3.3 KiB
C
128 lines
3.3 KiB
C
/* ****************************************************************************
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* file/decode/std/mcs.c -- decode an MCS archive file.
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* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
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*
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* This file is part of libcasio.
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* libcasio is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 3.0 of the License,
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* or (at your option) any later version.
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*
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* libcasio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libcasio; if not, see <http://www.gnu.org/licenses/>.
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* ************************************************************************* */
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#include "../decode.h"
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/**
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* casio_decode_std_mcs:
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* Decode an MCS file, after the Standard Header.
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*
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* @arg h the handle to make.
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* @arg buffer the buffer to read from.
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* @arg num number of sizes.
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* @return the error code (0 if ok).
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*/
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int CASIO_EXPORT casio_decode_std_mcs(casio_file_t **h,
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casio_stream_t *buffer, casio_standard_header_t *std)
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{
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int err = casio_error_alloc;
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unsigned int num;
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unsigned long i;
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casio_mcshead_t head; casio_file_t *handle;
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casio_mcsfile_t *mcsfile;
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/* Get number of subparts from the standard header. */
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num = std->casio_standard_header_number;
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/* Make the handle. */
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err = casio_make_mcs(h, num);
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if (err)
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return (err);
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handle = *h;
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/* Read all of the parts. */
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msg((ll_info, "%u total mcs files to browse", num));
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while (num) {
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casio_mcs_subheader_t hd;
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/* Get the subheader. */
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GDREAD(hd)
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/* Correct endianess. */
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hd.casio_mcs_subheader_subcount =
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be32toh(hd.casio_mcs_subheader_subcount);
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/* Log info about part. */
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msg((ll_info, "New group! Group name is '%.16s'.",
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hd.casio_mcs_subheader_intname));
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msg((ll_info, "%d mcs files to browse in that group",
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hd.casio_mcs_subheader_subcount));
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/* Foreach subpart. */
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for (i = 0; i < hd.casio_mcs_subheader_subcount; i++) {
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casio_mcs_fileheader_t fhd;
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casio_uint32_t datalength;
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/* Get the part header. */
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GDREAD(fhd)
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datalength = be32toh(fhd.casio_mcs_fileheader_datalength);
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/* Log info about the subpart. */
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msg((ll_info, "[%lu] directory name is '%.8s'",
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i, fhd.casio_mcs_fileheader_dirname));
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msg((ll_info, "[%lu] filename is '%.8s'", i,
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fhd.casio_mcs_fileheader_filename));
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msg((ll_info, "[%lu] data length is %" CASIO_PRIu32,
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i, datalength));
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/* Decode the head. */
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num--;
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casio_decode_mcsfile_head(&head,
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fhd.casio_mcs_fileheader_filetype,
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hd.casio_mcs_subheader_intname,
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fhd.casio_mcs_fileheader_dirname,
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fhd.casio_mcs_fileheader_filename,
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datalength);
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/* Decode. */
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mcsfile = NULL;
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err = casio_decode_mcsfile(&mcsfile, &head, buffer);
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if (err) {
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msg((ll_error, "could not decode file: %s",
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casio_strerror(err)));
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continue;
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}
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err = casio_put_mcsfile(handle->casio_file_mcs, mcsfile, 1);
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if (err)
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goto fail;
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}
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}
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/* no error */
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return (0);
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/* was error! */
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fail:
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casio_free_file(*h); *h = NULL;
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return (err);
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}
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