71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/* ****************************************************************************
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* stream/write.c -- write to a stream.
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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 "stream.h"
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/**
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* casio_write:
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* Write to a libcasio stream.
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*
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* @arg stream the stream to write to.
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* @arg data the data to write.
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* @arg size the amount of bytes to write.
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* @return the error code (0 if ok).
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*/
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int CASIO_EXPORT casio_write(casio_stream_t *stream,
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const void *data, size_t size)
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{
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int err;
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/* check if we can write */
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failure(~stream->casio_stream_mode & CASIO_OPENMODE_WRITE,
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casio_error_write)
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/* write */
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if (!size) return (0);
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err = (*getcb(stream, write))(stream->casio_stream_cookie, data, size);
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if (err) {
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msg((ll_error, "Stream writing failure: %s", casio_strerror(err)));
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goto fail;
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}
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/* move the cursor and return */
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stream->casio_stream_offset += size;
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err = 0;
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fail:
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stream->casio_stream_lasterr = err;
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return (err);
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}
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/**
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* casio_write_char:
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* Write a character to a libcasio stream.
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*
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* @arg stream the stream to write to.
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* @arg car the character to write.
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* @return the error code (0 if ok).
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*/
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int CASIO_EXPORT casio_write_char(casio_stream_t *stream, int car)
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{
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unsigned char ccar = car;
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return (casio_write(stream, &ccar, 1));
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}
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