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da36e7e256fd03de61cbdf736befdf5d238b162a
cosmopolitan/net/http/gethttpheader.inc
Justine Tunney da36e7e256 Make major improvements to stdio 
Buffering now has optimal performance, bugs have been fixed, and some
missing apis have been introduced. This implementation is also now more
production worthy since it's less brittle now in terms of system errors.
That's going to help redbean since lua i/o is all based on stdio.

See #97
2021-03-26 22:31:41 -07:00

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11 KiB
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/* ANSI-C code produced by gperf version 3.1 */
/* Command-line: gperf gethttpheader.gperf */
/* Computed positions: -k'3-4,10' */
#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
&& ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
&& (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \
&& ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \
&& ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \
&& ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \
&& ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \
&& ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \
&& ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \
&& ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \
&& ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \
&& ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \
&& ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \
&& ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \
&& ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \
&& ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \
&& ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \
&& ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \
&& ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \
&& ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \
&& ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \
&& ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \
&& ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126))
/* The character set is not based on ISO-646. */
#error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gperf@gnu.org>."
#endif
#line 1 "gethttpheader.gperf"
#include "libc/str/str.h"
#include "net/http/http.h"
#define GPERF_DOWNCASE
#line 12 "gethttpheader.gperf"
struct HttpHeaderSlot { char *name; char code; };
#define TOTAL_KEYWORDS 54
#define MIN_WORD_LENGTH 2
#define MAX_WORD_LENGTH 19
#define MIN_HASH_VALUE 2
#define MAX_HASH_VALUE 89
/* maximum key range = 88, duplicates = 0 */
#ifndef GPERF_DOWNCASE
#define GPERF_DOWNCASE 1
static unsigned char gperf_downcase[256] =
{
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
60, 61, 62, 63, 64, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106,
107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121,
122, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119,
120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134,
135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149,
150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164,
165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179,
180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194,
195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209,
210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224,
225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254,
255
};
#endif
#ifndef GPERF_CASE_STRNCMP
#define GPERF_CASE_STRNCMP 1
static int
gperf_case_strncmp (register const char *s1, register const char *s2, register size_t n)
{
for (; n > 0;)
{
unsigned char c1 = gperf_downcase[(unsigned char)*s1++];
unsigned char c2 = gperf_downcase[(unsigned char)*s2++];
if (c1 != 0 && c1 == c2)
{
n--;
continue;
}
return (int)c1 - (int)c2;
}
return 0;
}
#endif
#ifdef __GNUC__
__inline
#else
#ifdef __cplusplus
inline
#endif
#endif
static unsigned int
hash (register const char *str, register size_t len)
{
static const unsigned char asso_values[] =
{
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 30, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 5, 5, 30, 50, 0,
35, 30, 0, 5, 90, 40, 0, 30, 0, 20,
45, 90, 0, 5, 10, 5, 0, 15, 20, 25,
90, 90, 90, 90, 90, 90, 90, 5, 5, 30,
50, 0, 35, 30, 0, 5, 90, 40, 0, 30,
0, 20, 45, 90, 0, 5, 10, 5, 0, 15,
20, 25, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90
};
register unsigned int hval = len;
switch (hval)
{
default:
hval += asso_values[(unsigned char)str[9]];
/*FALLTHROUGH*/
case 9:
case 8:
case 7:
case 6:
case 5:
case 4:
hval += asso_values[(unsigned char)str[3]];
/*FALLTHROUGH*/
case 3:
hval += asso_values[(unsigned char)str[2]];
/*FALLTHROUGH*/
case 2:
break;
}
return hval;
}
const struct HttpHeaderSlot *
LookupHttpHeader (register const char *str, register size_t len)
{
static const struct HttpHeaderSlot wordlist[] =
{
{""}, {""},
#line 65 "gethttpheader.gperf"
{"TE", kHttpTe},
#line 18 "gethttpheader.gperf"
{"Age", kHttpAge},
{""}, {""},
#line 58 "gethttpheader.gperf"
{"Server", kHttpServer},
#line 60 "gethttpheader.gperf"
{"Warning", kHttpWarning},
#line 54 "gethttpheader.gperf"
{"Via", kHttpVia},
{""},
#line 24 "gethttpheader.gperf"
{"Connection", kHttpConnection},
#line 56 "gethttpheader.gperf"
{"Public", kHttpPublic},
#line 22 "gethttpheader.gperf"
{"Chunked", kHttpChunked},
#line 66 "gethttpheader.gperf"
{"DNT", kHttpDnt},
#line 33 "gethttpheader.gperf"
{"Date", kHttpDate},
{""}, {""},
#line 64 "gethttpheader.gperf"
{"Trailer", kHttpTrailer},
{""},
#line 37 "gethttpheader.gperf"
{"Host", kHttpHost},
#line 53 "gethttpheader.gperf"
{"User-Agent", kHttpUserAgent},
#line 57 "gethttpheader.gperf"
{"Retry-After", kHttpRetryAfter},
#line 51 "gethttpheader.gperf"
{"Transfer-Encoding", kHttpTransferEncoding},
{""},
#line 28 "gethttpheader.gperf"
{"Content-Length", kHttpContentLength},
#line 19 "gethttpheader.gperf"
{"Allow", kHttpAllow},
#line 26 "gethttpheader.gperf"
{"Content-Encoding", kHttpContentEncoding},
#line 25 "gethttpheader.gperf"
{"Content-Base", kHttpContentBase},
#line 31 "gethttpheader.gperf"
{"Content-Range", kHttpContentRange},
#line 59 "gethttpheader.gperf"
{"Vary", kHttpVary},
#line 23 "gethttpheader.gperf"
{"Close", kHttpClose},
#line 27 "gethttpheader.gperf"
{"Content-Language", kHttpContentLanguage},
{""},
#line 20 "gethttpheader.gperf"
{"Authorization", kHttpAuthorization},
{""},
#line 49 "gethttpheader.gperf"
{"Range", kHttpRange},
#line 14 "gethttpheader.gperf"
{"Accept", kHttpAccept},
#line 52 "gethttpheader.gperf"
{"Upgrade", kHttpUpgrade},
#line 41 "gethttpheader.gperf"
{"If-Range", kHttpIfRange},
#line 34 "gethttpheader.gperf"
{"ETag", kHttpEtag},
{""},
#line 45 "gethttpheader.gperf"
{"Pragma", kHttpPragma},
#line 50 "gethttpheader.gperf"
{"Referer", kHttpReferer},
#line 55 "gethttpheader.gperf"
{"Location", kHttpLocation},
{""},
#line 17 "gethttpheader.gperf"
{"Accept-Language", kHttpAcceptLanguage},
#line 29 "gethttpheader.gperf"
{"Content-Location", kHttpContentLocation},
#line 32 "gethttpheader.gperf"
{"Content-Type", kHttpContentType},
#line 40 "gethttpheader.gperf"
{"If-None-Match", kHttpIfNoneMatch},
#line 15 "gethttpheader.gperf"
{"Accept-Charset", kHttpAcceptCharset},
{""},
#line 67 "gethttpheader.gperf"
{"Expect", kHttpExpect},
{""},
#line 21 "gethttpheader.gperf"
{"Cache-Control", kHttpCacheControl},
#line 36 "gethttpheader.gperf"
{"From", kHttpFrom},
#line 43 "gethttpheader.gperf"
{"Keep-Alive", kHttpKeepAlive},
#line 48 "gethttpheader.gperf"
{"Proxy-Connection", kHttpProxyConnection},
#line 35 "gethttpheader.gperf"
{"Expires", kHttpExpires},
#line 46 "gethttpheader.gperf"
{"Proxy-Authenticate", kHttpProxyAuthenticate},
#line 47 "gethttpheader.gperf"
{"Proxy-Authorization", kHttpProxyAuthorization},
{""},
#line 61 "gethttpheader.gperf"
{"WWW-Authenticate", kHttpWwwAuthenticate},
#line 44 "gethttpheader.gperf"
{"Max-Forwards", kHttpMaxForwards},
#line 62 "gethttpheader.gperf"
{"Last-Modified", kHttpLastModified},
{""}, {""},
#line 63 "gethttpheader.gperf"
{"Cookie", kHttpCookie},
{""},
#line 38 "gethttpheader.gperf"
{"If-Match", kHttpIfMatch},
{""}, {""},
#line 30 "gethttpheader.gperf"
{"Content-Md5", kHttpContentMd5},
{""}, {""}, {""},
#line 16 "gethttpheader.gperf"
{"Accept-Encoding", kHttpAcceptEncoding},
{""},
#line 39 "gethttpheader.gperf"
{"If-Modified-Since", kHttpIfModifiedSince},
{""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
{""}, {""},
#line 42 "gethttpheader.gperf"
{"If-Unmodified-Since", kHttpIfUnmodifiedSince}
};
if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
{
register unsigned int key = hash (str, len);
if (key <= MAX_HASH_VALUE)
{
register const char *s = wordlist[key].name;
if ((((unsigned char)*str ^ (unsigned char)*s) & ~32) == 0 && !gperf_case_strncmp (str, s, len) && s[len] == '\0')
return &wordlist[key];
}
}
return 0;
}
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