get_header.c
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#include <search.h>
#include <ctype.h>
#include <stdio.h>
#include "class.h"
#include "interface/class.h"
#include "http/header.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)
{
HttpHeader a = (HttpHeader)_a;
HttpHeader b = (HttpHeader)_b;
return (a->hash < b->hash)? -1 : (a->hash > b->hash)? 1 : 0;
}
void
httpRequestParserGetHeader(HttpRequest request, char * line)
{
char * name = line;
char * value = strchr(line, ':');
*(value++) = 0;
for (; *value == ' ' && *value != 0; value++);
httpHeaderAdd(&(request->header), new(HttpHeader, name, value));
}
void
httpHeaderAdd(HttpHeader * root, HttpHeader header)
{
HttpHeader * found = tsearch(header, (void **)root, comp);
if (*found != header) {
puts("uhh, duplicate header set. "
"This is not implemented right now. "
"Keep the first one found.");
delete(&header);
}
}
char *
XhttpHeaderGet(HttpHeader * root, const char * name)
{
struct c_HttpHeader search = {sdbm((const unsigned char*)name), NULL, NULL};
HttpHeader * found = tfind(&search, (void **)root, comp);
return (NULL != found)? (*found)->value : NULL;
}
// vim: set ts=4 sw=4: