header_get.c
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#include <stdlib.h>
#include <ctype.h>
#include "http/request.h"
static
inline
unsigned long
sdbm(const unsigned char * str)
{
unsigned long hash = 0;
int c;
while ((c = tolower(*str++)))
hash = c + (hash << 6) + (hash << 16) - hash;
return hash;
}
static
inline
int
comp (const void * _a, const void * _b)
{
unsigned long a = *(unsigned long *)_a;
const struct HttpRequestHeader * b = _b;
return (a < b->hash)? -1 : (a > b->hash)? 1 : 0;
}
char *
httpRequestHeaderGet(HttpRequest this, const char * name)
{
unsigned long hash = sdbm((unsigned char *)name);
struct HttpRequestHeader * header;
header = bsearch(
&hash,
this->header,
this->nheader,
sizeof(struct HttpRequestHeader),
comp);
return (NULL != header)? header->value : NULL;
}
// vim: set ts=4 sw=4: