70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* Stream Utils
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*
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* Copyright 2011 Vic Lee
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <freerdp/utils/memory.h>
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#include <freerdp/utils/stream.h>
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STREAM* stream_new(int size)
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{
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STREAM* stream;
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stream = xnew(STREAM);
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if (stream != NULL)
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{
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if (size != 0)
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{
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size = size > 0 ? size : 0x400;
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stream->data = (uint8*)xzalloc(size);
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stream->p = stream->data;
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stream->size = size;
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}
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}
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return stream;
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}
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void stream_free(STREAM* stream)
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{
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if (stream != NULL)
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{
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xfree(stream->data);
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xfree(stream);
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}
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}
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void stream_extend(STREAM* stream, int request_size)
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{
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int original_size;
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int increased_size;
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int pos;
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pos = stream_get_pos(stream);
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original_size = stream->size;
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increased_size = (request_size > original_size ? request_size : original_size);
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stream->size += increased_size;
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stream->data = (uint8*)xrealloc(stream->data, stream->size);
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memset(stream->data + original_size, 0, increased_size);
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stream_set_pos(stream, pos);
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}
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