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/*
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* Copyright (C) 2017 Nikos Mavrogiannopoulos
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef MEM_H
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# define MEM_H
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typedef struct mem_st {
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const uint8_t *data;
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size_t size;
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} mem_st;
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#define MIN(x,y) ((x)<(y)?(x):(y))
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static ssize_t
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mem_push(gnutls_transport_ptr_t tr, const void *data, size_t len)
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{
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return len;
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}
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static ssize_t mem_pull(gnutls_transport_ptr_t tr, void *data, size_t len)
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{
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struct mem_st *p = (struct mem_st *)tr;
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if (p->size == 0) {
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return 0;
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}
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len = MIN(len, p->size);
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memcpy(data, p->data, len);
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p->size -= len;
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p->data += len;
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return len;
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}
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static
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int mem_pull_timeout(gnutls_transport_ptr_t tr, unsigned int ms)
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{
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struct mem_st *p = (struct mem_st *)tr;
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if (p->size > 0)
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return 1; /* available data */
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else
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return 0; /* timeout */
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}
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#endif
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