get.c
1.42 KB
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/**
* \file
* Get a header from a tree containing headers by its name.
* The key for the tree is the hased lowercase header identifier.
*
* \author Georg Hopp
*
* \copyright
* Copyright (C) 2012 Georg Hopp
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <search.h>
#include <stdlib.h>
#include "http/header.h"
#include "utils/hash.h"
static
inline
int
comp(const void * _a, const void * _b)
{
HttpHeader a = (HttpHeader)_a;
HttpHeader b = (HttpHeader)_b;
return (a->hash < b->hash)? -1 : (a->hash > b->hash)? 1 : 0;
}
HttpHeader
httpHeaderGet(const HttpHeader * root, const char * name, size_t nname)
{
struct c_HttpHeader search = {
sdbm((const unsigned char*)name, nname),
NULL,
{},
0};
HttpHeader * found = tfind(&search, (void**)root, comp);
return (NULL != found)? *found : NULL;
}
// vim: set ts=4 sw=4: