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