/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Libmemcached library
*
* Copyright (C) 2011 Data Differential, http://datadifferential.com/
* Copyright (C) 2006-2009 Brian Aker All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * The names of its contributors may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <libmemcached/common.h>
static inline memcached_return_t memcached_validate_key_length(size_t key_length, bool)
{
if (key_length == 0)
{
return MEMCACHED_BAD_KEY_PROVIDED;
}
// No one ever reimplemented MEMCACHED to use keys longer then the original ascii length
#if 0
if (binary)
{
if (key_length > 0xffff)
{
return MEMCACHED_BAD_KEY_PROVIDED;
}
}
else
#endif
{
if (key_length >= MEMCACHED_MAX_KEY)
{
return MEMCACHED_BAD_KEY_PROVIDED;
}
}
return MEMCACHED_SUCCESS;
}
memcached_return_t memcached_key_test(memcached_st &memc,
const char * const *keys,
const size_t *key_length,
size_t number_of_keys)
{
if (number_of_keys == 0)
{
return memcached_set_error(memc, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT, memcached_literal_param("Numbers of keys provided was zero"));
}
if (keys == NULL or key_length == NULL)
{
return memcached_set_error(memc, MEMCACHED_BAD_KEY_PROVIDED, MEMCACHED_AT, memcached_literal_param("Key was NULL or length of key was zero."));
}
const bool is_binary= memcached_flag(memc, MEMCACHED_FLAG_BINARY_PROTOCOL);
// If we don't need to verify the key, or we are using the binary protoocol,
// we just check the size of the key
for (size_t x= 0; x < number_of_keys; ++x)
{
// We should set binary key, but the memcached server is broken for
// longer keys at the moment.
memcached_return_t rc= memcached_validate_key_length(*(key_length +x), false /* memc.flags.binary_protocol */);
if (memcached_failed(rc))
{
return memcached_set_error(memc, rc, MEMCACHED_AT, memcached_literal_param("Key provided was too long."));
}
if (memc.flags.verify_key and is_binary == false)
{
for (size_t y= 0; y < *(key_length +x); ++y)
{
if ((isgraph(keys[x][y])) == 0)
{
return memcached_set_error(memc, MEMCACHED_BAD_KEY_PROVIDED, MEMCACHED_AT, memcached_literal_param("Key provided had invalid character."));
}
}
}
}
return MEMCACHED_SUCCESS;
}