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#include "libhttpc.h"
#include <ctype.h>
#define HEADER(X) LibHTTPC_Header_##X
/* General headers */
#define S_CACHE_CONTROL "Cache-Control"
#define S_CONNECTION "Connection"
#define S_DATE "Date"
#define S_PRAGMA "Pragma"
#define S_TRAILER "Trailer"
#define S_TRANSFER_ENCODING "Transfer-Encoding"
#define S_UPGRADE "Upgrade"
#define S_VIA "Via"
#define S_WARNING "Warning"
/* Request headers */
#define S_ACCEPT "Accept"
#define S_ACCEPT_CHARSET "Accept-Charset"
#define S_ACCEPT_ENCODING "Accept-Encoding"
#define S_ACCEPT_LANGUAGE "Accept-Language"
#define S_AUTHORIZATION "Authorization"
#define S_EXPECT "Expect"
#define S_FROM "From"
#define S_HOST "Host"
#define S_IF_MATCH "If-Match"
#define S_IF_MODIFIED_SINCE "If-Modified-Since"
#define S_IF_NONE_MATCH "If-None-Match"
#define S_IF_RANGE "If-Range"
#define S_IF_UNMODIFIED_SINCE "If-Unmodified-Since"
#define S_MAX_FORWARDS "Max-Forwards"
#define S_PROXY_AUTHORIZATION "Proxy-Authorization"
#define S_RANGE "Range"
#define S_REFERER "Referer"
#define S_TE "TE"
#define S_USER_AGENT "User-Agent"
/* Response headers */
#define S_ACCEPT_RANGES "Accept-Ranges"
#define S_AGE "Age"
#define S_ETAG "ETag"
#define S_LOCATION "Location"
#define S_PROXY_AUTHENTICATE "Proxy-Authenticate"
#define S_RETRY_AFTER "Retry-After"
#define S_SERVER "Server"
#define S_VARY "Vary"
#define S_WWW_AUTHENTICATE "WWW-Authenticate"
/* Entity headers */
#define S_ALLOW "Allow"
#define S_CONTENT_ENCODING "Content-Encoding"
#define S_CONTENT_LANGUAGE "Content-Language"
#define S_CONTENT_LENGTH "Content-Length"
#define S_CONTENT_LOCATION "Content-Location"
#define S_CONTENT_MD5 "Content-MD5"
#define S_CONTENT_RANGE "Content-Range"
#define S_CONTENT_TYPE "Content-Type"
#define S_EXPIRES "Expires"
#define S_LAST_MODIFIED "Last-Modified"
static int strieq(const char *a, const char *b)
{
while (*a && tolower(*a) == tolower(*b)) ++a, ++b;
return tolower(*a) == tolower(*b);
}
#define CHECK() \
do \
{ \
/* General headers */ \
CASE(CACHE_CONTROL); \
CASE(CONNECTION); \
CASE(DATE); \
CASE(PRAGMA); \
CASE(TRAILER); \
CASE(TRANSFER_ENCODING); \
CASE(UPGRADE); \
CASE(VIA); \
CASE(WARNING); \
/* Request headers */ \
CASE(ACCEPT); \
CASE(ACCEPT_CHARSET); \
CASE(ACCEPT_ENCODING); \
CASE(ACCEPT_LANGUAGE); \
CASE(AUTHORIZATION); \
CASE(EXPECT); \
CASE(FROM); \
CASE(HOST); \
CASE(IF_MATCH); \
CASE(IF_MODIFIED_SINCE); \
CASE(IF_NONE_MATCH); \
CASE(IF_RANGE); \
CASE(IF_UNMODIFIED_SINCE); \
CASE(MAX_FORWARDS); \
CASE(PROXY_AUTHORIZATION); \
CASE(RANGE); \
CASE(REFERER); \
CASE(TE); \
CASE(USER_AGENT); \
/* Response headers */ \
CASE(ACCEPT_RANGES); \
CASE(AGE); \
CASE(ETAG); \
CASE(LOCATION); \
CASE(PROXY_AUTHENTICATE); \
CASE(RETRY_AFTER); \
CASE(SERVER); \
CASE(VARY); \
CASE(WWW_AUTHENTICATE); \
/* Entity headers */ \
CASE(ALLOW); \
CASE(CONTENT_ENCODING); \
CASE(CONTENT_LANGUAGE); \
CASE(CONTENT_LENGTH); \
CASE(CONTENT_LOCATION); \
CASE(CONTENT_MD5); \
CASE(CONTENT_RANGE); \
CASE(CONTENT_TYPE); \
CASE(EXPIRES); \
CASE(LAST_MODIFIED); \
} while(0)
enum LibHTTPC_HeaderType LibHTTPC_loadHeader(const char *header)
{
#define CASE(X) if (!strieq((S_##X), header)) return HEADER(X)
CHECK();
#undef CASE
return HEADER(EXTENSION_HEADER);
}
const char *LibHTTPC_dumpHeader(enum LibHTTPC_HeaderType header)
{
switch (header)
{
#define CASE(X) case HEADER(X): return S_##X;
CHECK();
#undef CASE
}
return NULL;
}
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