blob: c59ba7abf9483c42e9023b0141e7b01b585b3c6f [file] [log] [blame] [raw]
#ifndef H_HPACK_H
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <fio.h>
#ifndef MAYBE_UNUSED
#define MAYBE_UNUSED __attribute__((unused))
#endif
/**
* Sets the limit for both a single header value and a packed header group.
* Must be less than 2^16 -1
*/
#define HPACK_BUFFER_SIZE 16384
/**
* Sets the limit for the amount of data an HPACK dynamic table can reference.
* Should be less then 65,535 (2^16 -1 is the type size limit).
*/
#define HPACK_MAX_TABLE_SIZE 65535
/* *****************************************************************************
Required Callbacks
***************************************************************************** */
/* *****************************************************************************
Types
***************************************************************************** */
/** The HPACK context. */
typedef struct hpack_context_s hpack_context_s;
/* *****************************************************************************
Context API
***************************************************************************** */
/* *****************************************************************************
Primitive Types API
***************************************************************************** */
/**
* Encodes an integer.
*
* Returns the number of bytes written to the destination buffer. If the buffer
* was too small, returns the number of bytes that would have been written.
*/
static inline int hpack_int_pack(void *dest, size_t limit, uint64_t i,
uint8_t prefix);
/**
* Decodes an integer, updating the `pos` marker to the next unprocessed byte.
*
* The position marker may start as non-zero, meaning that `len - (*pos)` is the
* actual length.
*
* An encoding / decoding error results in a return value of -1.
*/
static inline int64_t hpack_int_unpack(void *data, size_t len, uint8_t prefix,
size_t *pos);
/**
* Encodes a String.
*
* Returns the number of bytes written to the destination buffer. If the buffer
* was too small, returns the number of bytes that would have been written.
*/
static inline int hpack_string_pack(void *dest, size_t limit, void *data,
size_t len, uint8_t compress);
/**
* Decodes a String.
*
* Returns the number of bytes written to the destination buffer. If the buffer
* was too small, returns the number of bytes that would have been written.
*
* An encoding / decoding error results in a return value of -1.
*
* The position marker may start as non-zero, meaning that `len - (*pos)` is the
* actual length.
*/
static inline int hpack_string_unpack(void *dest, size_t limit, void *encoded,
size_t len, size_t *pos);
/* *****************************************************************************
Static table API
***************************************************************************** */
/**
* Sets the provided pointers with the information in the static header table.
*
* The `index` is 1..61 (not zero based).
*
* Set `get_value` to 1 to collect the value data rather then the header name.
*
* Returns -1 if request is out of bounds.
*/
static int hpack_header_static_find(uint8_t index, uint8_t get_value,
const char **name, size_t *len);
/* *****************************************************************************
Huffman API (internal)
***************************************************************************** */
/* the huffman encoding map */
typedef const struct {
const uint32_t code;
const uint8_t bits;
} huffman_encode_s;
static const huffman_encode_s huffman_encode_table[];
/* the huffman decoding binary tree type */
typedef struct {
const int16_t value; // value, -1 == none.
const uint8_t offset[2]; // offset for 0 and one. 0 == leaf node.
} huffman_decode_s;
static const huffman_decode_s huffman_decode_tree[];
/**
* Unpack (de-compress) using HPACK huffman - returns the number of bytes
* written and advances the position marker.
*/
static MAYBE_UNUSED int hpack_huffman_unpack(void *dest, size_t limit,
void *encoded, size_t len,
size_t *pos);
/**
* Pack (compress) using HPACK huffman - returns the number of bytes written or
* required.
*/
static MAYBE_UNUSED int hpack_huffman_pack(void *dest, const int limit,
void *data, size_t len);
/* *****************************************************************************
Implementation
***************************************************************************** */
/* *****************************************************************************
Integer encoding
***************************************************************************** */
static inline int hpack_int_pack(void *dest_, size_t limit, uint64_t i,
uint8_t prefix) {
uint8_t mask = ((1 << (prefix)) - 1);
uint8_t *dest = (uint8_t *)dest_;
int len = 1;
if (!dest_ || !limit)
goto calc_final_length;
if (i < mask) {
// zero out prefix bits
dest[0] &= ~mask;
// fill in i;
dest[0] |= i;
return 1;
}
dest[0] |= mask;
if ((size_t)len >= limit)
goto calc_final_length;
i -= mask;
while (i > 127) {
dest[len] = 128 | (i & 127);
++len;
if ((size_t)len >= limit)
goto calc_final_length;
i >>= 7;
}
dest[len] = i & 0x7fU;
++len;
return len;
calc_final_length:
len = 1;
if (i < mask)
return len;
i -= mask;
while (i) {
++len;
i >>= 7;
}
return len;
}
static inline int64_t hpack_int_unpack(void *data_, size_t len, uint8_t prefix,
size_t *pos) {
uint8_t *data = (uint8_t *)data_;
len -= *pos;
if (len > 8)
len = 8;
uint64_t result = 0;
uint64_t bit = 0;
uint8_t mask = ((1 << (prefix)) - 1);
if ((mask & (data[*pos])) != mask) {
result = (mask & (data[(*pos)++]));
return (int64_t)result;
}
++(*pos);
--len;
while (len && (data[*pos] & 128)) {
result |= ((data[*pos] & 0x7fU) << (bit));
bit += 7;
++(*pos);
--len;
}
if (!len) {
return -1;
}
result |= ((data[*pos] & 0x7fU) << bit);
result += mask;
++(*pos);
return (int64_t)result;
}
/* *****************************************************************************
String encoding
***************************************************************************** */
static MAYBE_UNUSED int hpack_string_pack(void *dest_, size_t limit,
void *data_, size_t len,
uint8_t compress) {
uint8_t *dest = (uint8_t *)dest_;
uint8_t *buf = (uint8_t *)data_;
int encoded_int_len = 0;
int pos = 0;
if (compress) {
dest[pos] = 128;
int comp_len = hpack_huffman_pack(NULL, 0, buf, len);
encoded_int_len = hpack_int_pack(dest, limit, comp_len, 7);
if (encoded_int_len + comp_len > (int)limit)
return comp_len + encoded_int_len;
comp_len = hpack_huffman_pack(dest + encoded_int_len,
limit - encoded_int_len, buf, len);
return encoded_int_len + comp_len;
}
dest[pos] = 0;
encoded_int_len = hpack_int_pack(dest, limit, len, 7);
if (encoded_int_len + (int)len > (int)limit)
return len + encoded_int_len;
memcpy(dest + encoded_int_len, buf, len);
return len + encoded_int_len;
}
static MAYBE_UNUSED int hpack_string_unpack(void *dest_, size_t limit,
void *encoded_, size_t len,
size_t *pos) {
uint8_t *dest = (uint8_t *)dest_;
uint8_t *buf = (uint8_t *)encoded_;
const size_t org_pos = *pos;
uint8_t compressed = buf[*pos] & 128;
int64_t l = hpack_int_unpack(buf, len, 7, pos);
if (!l) {
return 0;
}
if (l == -1 || l > (int64_t)len - (int64_t)*pos) {
return -1;
}
len = l;
if (compressed) {
len = hpack_huffman_unpack(dest, limit, buf, len + (*pos), pos);
if (len > limit)
goto overflow;
} else {
if (len > limit)
goto overflow;
memcpy(dest, buf + (*pos), len);
*pos += len;
}
return len;
overflow:
*pos = org_pos;
return len;
}
/* *****************************************************************************
Huffman encoding
***************************************************************************** */
static MAYBE_UNUSED int hpack_huffman_unpack(void *dest_, size_t limit,
void *encoded_, size_t len,
size_t *r_pos) {
uint8_t *dest = (uint8_t *)dest_;
uint8_t *encoded = (uint8_t *)encoded_;
size_t pos = 0;
uint8_t expect = 0;
len -= *r_pos;
register const huffman_decode_s *node = huffman_decode_tree;
while (len) {
register const uint8_t byte = encoded[(*r_pos)++];
--len;
expect = 1;
for (uint8_t bit = 0; bit < 8; ++bit) {
node += node->offset[(byte >> (7 - bit)) & 1];
if (node->offset[0])
continue;
switch (node->value) {
case 256U:
goto done;
case -1:
goto error;
}
if (pos < limit)
dest[pos] = (uint8_t)node->value;
++pos;
/* test if all remaining bits are set (possible padding) */
expect = ((uint8_t)(byte | (0xFF << (7 - bit))) & 0xFF) ^ 0xFF;
node = huffman_decode_tree;
}
}
done:
if (expect) {
/* padding error */
return -1;
}
return pos;
error:
return -1;
}
static MAYBE_UNUSED int hpack_huffman_pack(void *dest_, const int limit,
void *data_, size_t len) {
uint8_t *dest = (uint8_t *)dest_;
uint8_t *data = (uint8_t *)data_;
int comp_len = 0;
uint8_t *pos = data;
const uint8_t *end = pos + len;
uint8_t offset = 0;
if (!len)
return 0;
if (!limit)
goto calc_final_length;
dest[comp_len] = 0;
do {
uint32_t code = huffman_encode_table[*pos].code;
uint8_t bits = huffman_encode_table[*pos].bits;
++pos;
if (offset) {
/* does the code fit in the existing byte */
if (bits + offset <= 8) {
dest[comp_len] |= code >> (24 + offset);
offset = offset + bits;
continue;
}
/* fill in current byte */
dest[comp_len] |= (code >> (24 + offset)) & 0xFF;
code <<= 8 - offset;
bits -= 8 - offset;
offset = 0;
++comp_len;
dest[comp_len] = 0;
}
/* make sure we have enough space */
if (((bits + (comp_len << 3) + 7) >> 3) >= limit)
goto calc_final_length;
/* copy full bytes */
switch (bits >> 3) {
case 3:
dest[comp_len + 2] = (uint8_t)(code >> 8) & 0xFF;
/* overflow */
case 2:
dest[comp_len + 1] = (uint8_t)(code >> 16) & 0xFF;
/* overflow */
case 1: /* overflow */
dest[comp_len + 0] = (uint8_t)(code >> 24) & 0xFF;
comp_len += (bits >> 3);
code <<= (bits & (~7));
dest[comp_len] = 0;
}
/* copy partial bits */
dest[comp_len] |= (uint8_t)(code >> 24) & ((uint8_t)0xFF);
offset = bits & 7;
} while (pos < end);
if (offset & 7) {
/* pad last bits as 1 */
dest[comp_len] |= (uint8_t)(0xFFUL >> (offset & 7));
++comp_len;
}
return comp_len;
calc_final_length:
comp_len = 0;
for (size_t i = 0; i < len; i++) {
comp_len += huffman_encode_table[data[i]].bits;
}
comp_len += 7;
comp_len >>= 3;
return comp_len;
}
/* *****************************************************************************
Header static table lookup
***************************************************************************** */
const static struct {
struct hpack_static_data_s {
const char *val;
const size_t len;
} data[2];
} MAYBE_UNUSED hpack_static_table[] = {
/* [0] */ {.data = {{.len = 0}, {.len = 0}}},
{.data = {{.val = ":authority", .len = 10}, {.len = 0}}},
{.data = {{.val = ":method", .len = 7}, {.val = "GET", .len = 3}}},
{.data = {{.val = ":method", .len = 7}, {.val = "POST", .len = 4}}},
{.data = {{.val = ":path", .len = 5}, {.val = "/", .len = 1}}},
{.data = {{.val = ":path", .len = 5}, {.val = "/index.html", .len = 11}}},
{.data = {{.val = ":scheme", .len = 7}, {.val = "http", .len = 0}}},
{.data = {{.val = ":scheme", .len = 7}, {.val = "https", .len = 0}}},
{.data = {{.val = ":status", .len = 7}, {.val = "200", .len = 0}}},
{.data = {{.val = ":status", .len = 7}, {.val = "204", .len = 0}}},
{.data = {{.val = ":status", .len = 7}, {.val = "206", .len = 0}}},
{.data = {{.val = ":status", .len = 7}, {.val = "304", .len = 0}}},
{.data = {{.val = ":status", .len = 7}, {.val = "400", .len = 0}}},
{.data = {{.val = ":status", .len = 7}, {.val = "404", .len = 0}}},
{.data = {{.val = ":status", .len = 7}, {.val = "500", .len = 0}}},
{.data = {{.val = "accept-charset", .len = 14}, {.len = 0}}},
{.data = {{.val = "accept-encoding", .len = 15},
{.val = "gzip, deflate", .len = 13}}},
{.data = {{.val = "accept-language", .len = 15}, {.len = 0}}},
{.data = {{.val = "accept-ranges", .len = 13}, {.len = 0}}},
{.data = {{.val = "accept", .len = 6}, {.len = 0}}},
{.data = {{.val = "access-control-allow-origin", .len = 27}, {.len = 0}}},
{.data = {{.val = "age", .len = 3}, {.len = 0}}},
{.data = {{.val = "allow", .len = 5}, {.len = 0}}},
{.data = {{.val = "authorization", .len = 13}, {.len = 0}}},
{.data = {{.val = "cache-control", .len = 13}, {.len = 0}}},
{.data = {{.val = "content-disposition", .len = 0}, {.len = 0}}},
{.data = {{.val = "content-encoding", .len = 16}, {.len = 0}}},
{.data = {{.val = "content-language", .len = 16}, {.len = 0}}},
{.data = {{.val = "content-length", .len = 14}, {.len = 0}}},
{.data = {{.val = "content-location", .len = 16}, {.len = 0}}},
{.data = {{.val = "content-range", .len = 13}, {.len = 0}}},
{.data = {{.val = "content-type", .len = 12}, {.len = 0}}},
{.data = {{.val = "cookie", .len = 6}, {.len = 0}}},
{.data = {{.val = "date", .len = 4}, {.len = 0}}},
{.data = {{.val = "etag", .len = 4}, {.len = 0}}},
{.data = {{.val = "expect", .len = 6}, {.len = 0}}},
{.data = {{.val = "expires", .len = 7}, {.len = 0}}},
{.data = {{.val = "from", .len = 4}, {.len = 0}}},
{.data = {{.val = "host", .len = 4}, {.len = 0}}},
{.data = {{.val = "if-match", .len = 8}, {.len = 0}}},
{.data = {{.val = "if-modified-since", .len = 17}, {.len = 0}}},
{.data = {{.val = "if-none-match", .len = 13}, {.len = 0}}},
{.data = {{.val = "if-range", .len = 8}, {.len = 0}}},
{.data = {{.val = "if-unmodified-since", .len = 19}, {.len = 0}}},
{.data = {{.val = "last-modified", .len = 13}, {.len = 0}}},
{.data = {{.val = "link", .len = 4}, {.len = 0}}},
{.data = {{.val = "location", .len = 8}, {.len = 0}}},
{.data = {{.val = "max-forwards", .len = 12}, {.len = 0}}},
{.data = {{.val = "proxy-authenticate", .len = 18}, {.len = 0}}},
{.data = {{.val = "proxy-authorization", .len = 19}, {.len = 0}}},
{.data = {{.val = "range", .len = 5}, {.len = 0}}},
{.data = {{.val = "referer", .len = 7}, {.len = 0}}},
{.data = {{.val = "refresh", .len = 7}, {.len = 0}}},
{.data = {{.val = "retry-after", .len = 11}, {.len = 0}}},
{.data = {{.val = "server", .len = 6}, {.len = 0}}},
{.data = {{.val = "set-cookie", .len = 10}, {.len = 0}}},
{.data = {{.val = "strict-transport-security", .len = 25}, {.len = 0}}},
{.data = {{.val = "transfer-encoding", .len = 17}, {.len = 0}}},
{.data = {{.val = "user-agent", .len = 10}, {.len = 0}}},
{.data = {{.val = "vary", .len = 4}, {.len = 0}}},
{.data = {{.val = "via", .len = 3}, {.len = 0}}},
{.data = {{.val = "www-authenticate", .len = 16}, {.len = 0}}},
};
static MAYBE_UNUSED int hpack_header_static_find(uint8_t index,
uint8_t requested_type,
const char **name,
size_t *len) {
if (requested_type > 1 ||
index >= (sizeof(hpack_static_table) / sizeof(hpack_static_table[0])))
goto err;
struct hpack_static_data_s d = hpack_static_table[index].data[requested_type];
*name = d.val;
*len = d.len;
return 0;
err:
*name = NULL;
*len = 0;
return -1;
}
/* *****************************************************************************
Testing
***************************************************************************** */
#if DEBUG
#include <inttypes.h>
#include <stdio.h>
void hpack_test(void) {
uint8_t buffer[1 << 15];
const size_t limit = (1 << 15);
size_t buf_pos = 0;
{
/* test integer packing */
int64_t result;
size_t pos = 0;
fprintf(stderr, "* HPACK testing integer primitive packing.\n");
if ((result = hpack_int_unpack((uint8_t *)"\x0c", 1, 4, &pos)) != 12) {
fprintf(stderr,
"* HPACK INTEGER DECODER ERROR ex. 0c 12 != %" PRId64 "\n",
result);
exit(-1);
}
pos = 0;
if ((result = hpack_int_unpack((uint8_t *)"\x1f\x9a\x0a", 3, 5, &pos)) !=
1337) {
fprintf(
stderr,
"* HPACK INTEGER DECODER ERROR ex. \\x1f\\x9a\\x0a 1337 != %" PRId64
"\n",
result);
exit(-1);
}
for (size_t i = 0; i < (1 << 21); ++i) {
buf_pos = 0;
int pack_bytes =
hpack_int_pack(buffer + buf_pos, limit - buf_pos, i, i & 7);
if (pack_bytes == -1) {
fprintf(stderr,
"* HPACK INTEGER ENCODE ERROR 1 ( %zu) (prefix == %zu)\n", i,
i & 7);
exit(-1);
}
buf_pos += pack_bytes;
pack_bytes =
hpack_int_pack(buffer + buf_pos, limit - buf_pos, (i << 4), i & 7);
if (pack_bytes == -1) {
fprintf(stderr,
"* HPACK INTEGER ENCODE ERROR 1 ( %zu) (prefix == %zu)\n", i,
i & 7);
exit(-1);
}
buf_pos = 0;
result = hpack_int_unpack(buffer, limit, (i & 7), &buf_pos);
if ((size_t)result != i) {
fprintf(stderr,
"* HPACK INTEGER DECODE ERROR 2 expected %zu got %" PRId64
" (prefix == %zu)\n",
i, result, (i & 7));
exit(-1);
}
result = hpack_int_unpack(buffer, limit, (i & 7), &buf_pos);
if ((size_t)result != (i << 4)) {
fprintf(stderr,
"* HPACK INTEGER DECODE ERROR 2 expected %zu got %" PRId64
" (prefix == %zu)\n",
(i << 4), result, (i & 7));
exit(-1);
}
}
fprintf(stderr, "* HPACK integer primitive test complete.\n");
}
buf_pos = 0;
{
/* validate huffman tree */
for (int i = 0; i < 257; ++i) {
const huffman_decode_s *node = huffman_decode_tree;
uint32_t code = huffman_encode_table[i].code;
uint8_t consumed = 32 - huffman_encode_table[i].bits;
while (consumed < 32) {
node += node->offset[(code >> 31) & 1];
code <<= 1;
++consumed;
}
if (i != node->value) {
fprintf(stderr,
"ERROR validating huffman tree - validation error for %d "
"(value: %d != "
"%d)\n",
i, node->value, i);
exit(-1);
}
}
fprintf(stderr, "* HPACK Huffman tree validated.\n");
/* test huffman encoding / decoding packing */
const size_t results_limit = 1024;
uint8_t results[1024];
size_t pos = 0;
memset(results, 0, results_limit);
int tmp = hpack_huffman_unpack(
results, results_limit,
"\x9d\x29\xad\x17\x18\x63\xc7\x8f\x0b\x97\xc8\xe9\xae\x82"
"\xae\x43\xd3",
17, &pos);
if (tmp == -1) {
fprintf(stderr, "* HPACK HUFFMAN TEST FAILED unpacking error (1).\n");
exit(-1);
} else if ((size_t)tmp > (limit - buf_pos)) {
fprintf(stderr, "* HPACK HUFFMAN TEST buffer full error (1).\n");
} else if (memcmp(results, "https://www.example.com", 23) || tmp != 23) {
fprintf(stderr,
"* HPACK HUFFMAN TEST FAILED result error (1).\n(%d) %.*s\n", tmp,
tmp, results);
exit(-1);
}
memset(results, 0, results_limit);
pos = 0;
tmp = hpack_huffman_unpack(
results, results_limit,
"\xf1\xe3\xc2\xe5\xf2\x3a\x6b\xa0\xab\x90\xf4\xff", 12, &pos);
if (tmp == -1) {
fprintf(stderr, "* HPACK HUFFMAN TEST FAILED unpacking error (2).\n");
exit(-1);
} else if ((size_t)tmp > results_limit) {
fprintf(stderr, "* HPACK HUFFMAN TEST buffer full error (2).\n");
} else if (memcmp(results, "www.example.com", 15) || tmp != 15) {
fprintf(stderr, "* HPACK HUFFMAN TEST FAILED result error (2).\n");
exit(-1);
}
memset(results, 0, results_limit);
tmp = hpack_huffman_pack(results, results_limit, "https://www.example.com",
23);
if (tmp == -1) {
fprintf(stderr, "* HPACK HUFFMAN TEST FAILED packing error!.\n");
exit(-1);
} else if ((size_t)tmp > limit - buf_pos) {
fprintf(stderr, "* HPACK HUFFMAN TEST packing buffer full!\n");
} else if (tmp != 17 || memcmp("\x9d\x29\xad\x17\x18\x63\xc7\x8f\x0b\x97"
"\xc8\xe9\xae\x82\xae\x43\xd3",
results, 17)) {
fprintf(stderr,
"* HPACK HUFFMAN TEST FAILED packing result error!\n(%d) ", tmp);
for (int i = 0; i < tmp; ++i) {
fprintf(stderr, "\\x%.2X", results[i]);
}
fprintf(stderr, "\n");
exit(-1);
}
memset(results, 0, results_limit);
memset(buffer, 0, 128);
tmp = hpack_huffman_pack(
buffer, limit,
"I want to go home... but I have to write tests... woohoo!", 57);
if (tmp == -1) {
fprintf(stderr, "* HPACK HUFFMAN TEST FAILED packing error (3).\n");
exit(-1);
} else if ((size_t)tmp > limit) {
fprintf(stderr, "* HPACK HUFFMAN TEST buffer full (3).\n");
} else {
int old_tmp = tmp;
pos = 0;
tmp = hpack_huffman_unpack(results, results_limit, buffer, tmp, &pos);
if (tmp == -1) {
fprintf(
stderr,
"* HPACK HUFFMAN TEST FAILED unpacking error (3) for %d bytes.\n"
"* Got (%d): %.*s\n",
old_tmp, tmp, (int)tmp, results);
exit(-1);
} else if (memcmp(results,
"I want to go home... but I have to write tests... "
"woohoo!",
57) ||
tmp != 57) {
fprintf(stderr,
"* HPACK HUFFMAN TEST FAILED result error (3).\n* Got "
"(%u): %.*s\n",
tmp, (int)tmp, results);
exit(-1);
}
}
fprintf(stderr, "* HPACK Huffman compression test finished.\n");
}
buf_pos = 0;
memset(buffer, 0, 128);
if (1) {
/* test string packing */
size_t pos = 0;
int tmp = hpack_string_unpack(
buffer, limit, "\x0a\x63\x75\x73\x74\x6f\x6d\x2d\x6b\x65\x79", 11,
&pos);
if (pos != 11) {
fprintf(stderr,
"* HPACK STRING UNPACKING FAILED(!) wrong reading position %zu "
"!= 11\n",
pos);
exit(-1);
}
if (tmp == -1) {
fprintf(stderr, "* HPACK STRING UNPACKING FAILED(!) for example.\n");
exit(-1);
} else {
if (tmp != 10)
fprintf(stderr,
"* HPACK STRING UNPACKING ERROR example len %d != 10.\n", tmp);
if (memcmp(buffer, "\x63\x75\x73\x74\x6f\x6d\x2d\x6b\x65\x79", 10))
fprintf(stderr,
"* HPACK STRING UNPACKING ERROR example returned: %.*s\n",
(int)tmp, buffer);
}
pos = 0;
memset(buffer, 0, 128);
tmp = hpack_string_unpack(
buffer, limit, "\x8c\xf1\xe3\xc2\xe5\xf2\x3a\x6b\xa0\xab\x90\xf4\xff",
13, &pos);
if (tmp == -1) {
fprintf(stderr,
"* HPACK STRING UNPACKING FAILED(!) for compressed example. %s\n",
buffer);
exit(-1);
} else {
if (tmp != 15) {
fprintf(
stderr,
"* HPACK STRING UNPACKING ERROR compressed example len %d != 15.\n",
tmp);
exit(-1);
}
if (memcmp(buffer, "www.example.com", 10)) {
fprintf(stderr,
"* HPACK STRING UNPACKING ERROR compressed example returned: "
"%.*s\n",
tmp, buffer);
exit(-1);
}
if (pos != 13) {
fprintf(stderr,
"* HPACK STRING UNPACKING FAILED(!) wrong reading position %zu "
"!= 13\n",
pos);
exit(-1);
}
}
if (1) {
char *str1 = "This is a string to be packed, either compressed or not.";
buf_pos = 0;
size_t i = 0;
const size_t repeats = 1024;
for (i = 0; i < repeats; i++) {
tmp = hpack_string_pack(buffer + buf_pos, limit - buf_pos, str1, 56,
(i & 1) == 1);
if (tmp == -1)
fprintf(stderr, "* HPACK STRING PACKING FAIL AT %lu\n", i);
else if ((size_t)tmp > limit - buf_pos)
break;
buf_pos += tmp;
}
int count = i;
buf_pos = 0;
while (i) {
char result[56];
memset(result, 0, 56);
--i;
tmp = hpack_string_unpack(result, 56, buffer, limit, &buf_pos);
if (tmp == -1) {
fprintf(stderr, "* HPACK STRING UNPACKING FAIL AT %lu\n",
(repeats - 1) - i);
exit(-1);
} else if (tmp != 56) {
fprintf(stderr,
"* HPACK STRING UNPACKING ERROR AT %zu - got string "
"length %u instead of 56: %.*s\n",
(repeats - 1) - i, tmp, 56, result);
exit(-1);
}
if (memcmp(str1, result, 56)) {
fprintf(stderr,
"* HPACK STRING UNPACKING ERROR AT %lu. Got (%u) %.*s\n",
(repeats - 1) - i, tmp, tmp, result);
exit(-1);
}
}
fprintf(stderr,
"* HPACK string primitive test complete (buffer used %u/%zu "
"strings)\n",
count, repeats);
}
}
}
#else
#define hpack_test()
#endif /* DEBUG */
/* *****************************************************************************
Auto-generate binary tree from table data
***************************************************************************** */
#if HPACK_BUILD_HPACK_STRUCT
/*
This section prints out the C code required to create a static, Array based,
binary tree with the following type / fields:
*/
#include <stdio.h>
typedef struct {
uint32_t code;
uint8_t bits;
int16_t value;
} huffman_code_s;
/* the huffman decoding binary tree type */
typedef struct {
int16_t value; // value, -1 == none.
uint8_t offset[2]; // offset for 0 and one. 0 == leaf node.
} huffman_decode_nc_s;
/** used to print the binary reverse testing */
static MAYBE_UNUSED void huffman__print_bin_num(uint32_t num, uint8_t bits) {
fprintf(stderr, "0b");
if (((32 - bits) & 31))
num <<= ((32 - bits) & 31);
for (size_t i = 0; i < bits; i++) {
if (num & (1 << (31 - i)))
fprintf(stderr, "1");
else
fprintf(stderr, "0");
}
}
static void huffman__print_unit(huffman_decode_nc_s d, size_t index,
size_t code, size_t bits) {
if (d.value != -1) {
fprintf(stderr,
" {.value = %d, .offset = {%zu, %zu}}, // [%zu]:", (int)d.value,
(size_t)d.offset[0], (size_t)d.offset[1], index);
huffman__print_bin_num(code, bits);
fprintf(stderr, "\n");
} else {
fprintf(stderr, " {.value = %d, .offset = {%zu, %zu}}, // [%zu]\n",
(int)d.value, (size_t)d.offset[0], (size_t)d.offset[1], index);
}
}
#define HUFFMAN_TREE_BUFFER (1 << 12)
void huffman__print_tree(void) {
/* The Huffman Encoding table was copied from
* http://httpwg.org/specs/rfc7541.html#huffman.code
*/
const huffman_encode_s encode_table[] = {
/* 257 elements, 0..256 all sym + EOS */
{0x1ff8U, 13}, {0x7fffd8U, 23}, {0xfffffe2U, 28}, {0xfffffe3U, 28},
{0xfffffe4U, 28}, {0xfffffe5U, 28}, {0xfffffe6U, 28}, {0xfffffe7U, 28},
{0xfffffe8U, 28}, {0xffffeaU, 24}, {0x3ffffffcU, 30}, {0xfffffe9U, 28},
{0xfffffeaU, 28}, {0x3ffffffdU, 30}, {0xfffffebU, 28}, {0xfffffecU, 28},
{0xfffffedU, 28}, {0xfffffeeU, 28}, {0xfffffefU, 28}, {0xffffff0U, 28},
{0xffffff1U, 28}, {0xffffff2U, 28}, {0x3ffffffeU, 30}, {0xffffff3U, 28},
{0xffffff4U, 28}, {0xffffff5U, 28}, {0xffffff6U, 28}, {0xffffff7U, 28},
{0xffffff8U, 28}, {0xffffff9U, 28}, {0xffffffaU, 28}, {0xffffffbU, 28},
{0x14U, 6}, {0x3f8U, 10}, {0x3f9U, 10}, {0xffaU, 12},
{0x1ff9U, 13}, {0x15U, 6}, {0xf8U, 8}, {0x7faU, 11},
{0x3faU, 10}, {0x3fbU, 10}, {0xf9U, 8}, {0x7fbU, 11},
{0xfaU, 8}, {0x16U, 6}, {0x17U, 6}, {0x18U, 6},
{0x0U, 5}, {0x1U, 5}, {0x2U, 5}, {0x19U, 6},
{0x1aU, 6}, {0x1bU, 6}, {0x1cU, 6}, {0x1dU, 6},
{0x1eU, 6}, {0x1fU, 6}, {0x5cU, 7}, {0xfbU, 8},
{0x7ffcU, 15}, {0x20U, 6}, {0xffbU, 12}, {0x3fcU, 10},
{0x1ffaU, 13}, {0x21U, 6}, {0x5dU, 7}, {0x5eU, 7},
{0x5fU, 7}, {0x60U, 7}, {0x61U, 7}, {0x62U, 7},
{0x63U, 7}, {0x64U, 7}, {0x65U, 7}, {0x66U, 7},
{0x67U, 7}, {0x68U, 7}, {0x69U, 7}, {0x6aU, 7},
{0x6bU, 7}, {0x6cU, 7}, {0x6dU, 7}, {0x6eU, 7},
{0x6fU, 7}, {0x70U, 7}, {0x71U, 7}, {0x72U, 7},
{0xfcU, 8}, {0x73U, 7}, {0xfdU, 8}, {0x1ffbU, 13},
{0x7fff0U, 19}, {0x1ffcU, 13}, {0x3ffcU, 14}, {0x22U, 6},
{0x7ffdU, 15}, {0x3U, 5}, {0x23U, 6}, {0x4U, 5},
{0x24U, 6}, {0x5U, 5}, {0x25U, 6}, {0x26U, 6},
{0x27U, 6}, {0x6U, 5}, {0x74U, 7}, {0x75U, 7},
{0x28U, 6}, {0x29U, 6}, {0x2aU, 6}, {0x7U, 5},
{0x2bU, 6}, {0x76U, 7}, {0x2cU, 6}, {0x8U, 5},
{0x9U, 5}, {0x2dU, 6}, {0x77U, 7}, {0x78U, 7},
{0x79U, 7}, {0x7aU, 7}, {0x7bU, 7}, {0x7ffeU, 15},
{0x7fcU, 11}, {0x3ffdU, 14}, {0x1ffdU, 13}, {0xffffffcU, 28},
{0xfffe6U, 20}, {0x3fffd2U, 22}, {0xfffe7U, 20}, {0xfffe8U, 20},
{0x3fffd3U, 22}, {0x3fffd4U, 22}, {0x3fffd5U, 22}, {0x7fffd9U, 23},
{0x3fffd6U, 22}, {0x7fffdaU, 23}, {0x7fffdbU, 23}, {0x7fffdcU, 23},
{0x7fffddU, 23}, {0x7fffdeU, 23}, {0xffffebU, 24}, {0x7fffdfU, 23},
{0xffffecU, 24}, {0xffffedU, 24}, {0x3fffd7U, 22}, {0x7fffe0U, 23},
{0xffffeeU, 24}, {0x7fffe1U, 23}, {0x7fffe2U, 23}, {0x7fffe3U, 23},
{0x7fffe4U, 23}, {0x1fffdcU, 21}, {0x3fffd8U, 22}, {0x7fffe5U, 23},
{0x3fffd9U, 22}, {0x7fffe6U, 23}, {0x7fffe7U, 23}, {0xffffefU, 24},
{0x3fffdaU, 22}, {0x1fffddU, 21}, {0xfffe9U, 20}, {0x3fffdbU, 22},
{0x3fffdcU, 22}, {0x7fffe8U, 23}, {0x7fffe9U, 23}, {0x1fffdeU, 21},
{0x7fffeaU, 23}, {0x3fffddU, 22}, {0x3fffdeU, 22}, {0xfffff0U, 24},
{0x1fffdfU, 21}, {0x3fffdfU, 22}, {0x7fffebU, 23}, {0x7fffecU, 23},
{0x1fffe0U, 21}, {0x1fffe1U, 21}, {0x3fffe0U, 22}, {0x1fffe2U, 21},
{0x7fffedU, 23}, {0x3fffe1U, 22}, {0x7fffeeU, 23}, {0x7fffefU, 23},
{0xfffeaU, 20}, {0x3fffe2U, 22}, {0x3fffe3U, 22}, {0x3fffe4U, 22},
{0x7ffff0U, 23}, {0x3fffe5U, 22}, {0x3fffe6U, 22}, {0x7ffff1U, 23},
{0x3ffffe0U, 26}, {0x3ffffe1U, 26}, {0xfffebU, 20}, {0x7fff1U, 19},
{0x3fffe7U, 22}, {0x7ffff2U, 23}, {0x3fffe8U, 22}, {0x1ffffecU, 25},
{0x3ffffe2U, 26}, {0x3ffffe3U, 26}, {0x3ffffe4U, 26}, {0x7ffffdeU, 27},
{0x7ffffdfU, 27}, {0x3ffffe5U, 26}, {0xfffff1U, 24}, {0x1ffffedU, 25},
{0x7fff2U, 19}, {0x1fffe3U, 21}, {0x3ffffe6U, 26}, {0x7ffffe0U, 27},
{0x7ffffe1U, 27}, {0x3ffffe7U, 26}, {0x7ffffe2U, 27}, {0xfffff2U, 24},
{0x1fffe4U, 21}, {0x1fffe5U, 21}, {0x3ffffe8U, 26}, {0x3ffffe9U, 26},
{0xffffffdU, 28}, {0x7ffffe3U, 27}, {0x7ffffe4U, 27}, {0x7ffffe5U, 27},
{0xfffecU, 20}, {0xfffff3U, 24}, {0xfffedU, 20}, {0x1fffe6U, 21},
{0x3fffe9U, 22}, {0x1fffe7U, 21}, {0x1fffe8U, 21}, {0x7ffff3U, 23},
{0x3fffeaU, 22}, {0x3fffebU, 22}, {0x1ffffeeU, 25}, {0x1ffffefU, 25},
{0xfffff4U, 24}, {0xfffff5U, 24}, {0x3ffffeaU, 26}, {0x7ffff4U, 23},
{0x3ffffebU, 26}, {0x7ffffe6U, 27}, {0x3ffffecU, 26}, {0x3ffffedU, 26},
{0x7ffffe7U, 27}, {0x7ffffe8U, 27}, {0x7ffffe9U, 27}, {0x7ffffeaU, 27},
{0x7ffffebU, 27}, {0xffffffeU, 28}, {0x7ffffecU, 27}, {0x7ffffedU, 27},
{0x7ffffeeU, 27}, {0x7ffffefU, 27}, {0x7fffff0U, 27}, {0x3ffffeeU, 26},
{0x3fffffffU, 30},
};
/* copy code list */
huffman_code_s ordered[257];
for (uint16_t i = 0; i < 257; ++i) {
ordered[i] = (huffman_code_s){
.value = i,
.bits = encode_table[i].bits,
.code = encode_table[i].code,
};
}
/* order list by code's bit order (0100 > 0011), use a bunch of CPU... */
{
uint16_t i = 0;
while (i < 256) {
if (ordered[i].code > ordered[i + 1].code) {
huffman_code_s tmp = ordered[i + 1];
++i;
do {
ordered[i] = ordered[i - 1];
} while (--i && ordered[i - 1].code > tmp.code);
ordered[i] = tmp;
}
++i;
}
}
/* build tree */
huffman_decode_nc_s tree[HUFFMAN_TREE_BUFFER];
size_t tree_len = 0;
for (int i = 0; i < HUFFMAN_TREE_BUFFER; ++i) {
tree[i] = (huffman_decode_nc_s){.value = -1,
.offset = {(uint8_t)-1, (uint8_t)-1}};
}
{
size_t max_offset = 0;
size_t next = 1;
for (int i = 0; i < 257; ++i) {
/* for each code point, map a tree path */
size_t pos = 0;
uint32_t code = ordered[i].code;
for (int b = 0; b < ordered[i].bits; ++b) {
if (code & (1ULL << (ordered[i].bits - 1))) {
/* map 1 branch */
if (tree[pos].offset[1] != (uint8_t)-1)
pos += tree[pos].offset[1];
else {
if (next - pos > max_offset)
max_offset = next - pos;
tree[pos].offset[1] = next - pos;
pos = next;
++next;
}
} else {
/* map 0 branch */
if (tree[pos].offset[0] != (uint8_t)-1)
pos += tree[pos].offset[0];
else {
if (next - pos > max_offset)
max_offset = next - pos;
tree[pos].offset[0] = next - pos;
pos = next;
++next;
}
}
code <<= 1;
}
tree[pos] = (huffman_decode_nc_s){.value = ordered[i].value};
}
fprintf(stderr, "Total tree length = %zu, max offset = %zu\n", next,
max_offset);
tree_len = next;
}
{
/* Validate tree */
for (int i = 0; i < 257; ++i) {
huffman_decode_nc_s *node = tree;
uint32_t code = ordered[i].code;
uint8_t consumed = 32 - ordered[i].bits;
code <<= consumed;
while (consumed < 32) {
node += node->offset[(code >> 31) & 1];
code <<= 1;
++consumed;
}
if (ordered[i].value != node->value) {
fprintf(stderr,
"ERROR building tree - validation error for %d (value: %d != "
"%d)\n",
i, node->value, ordered[i].value);
exit(-1);
}
}
}
fprintf(stderr, "***** Copy after this line ****\n\n"
"/** Static Huffman encoding map, left aligned */\n"
"static const huffman_encode_s huffman_encode_table[] = {\n");
for (size_t i = 0; i < 257; ++i) {
/* print huffman code left align */
fprintf(stderr, " {.code = 0x%.08X, .bits = %u}, // [%zu] \n",
(encode_table[i].code << (32 - encode_table[i].bits)),
encode_table[i].bits, i);
}
fprintf(stderr,
"};\n\n/** Static Huffman decoding tree, flattened as an array */\n"
"static const huffman_decode_s huffman_decode_tree[] = {\n");
for (size_t i = 0; i < tree_len; ++i) {
huffman__print_unit(
tree[i], i,
(tree[i].value == -1) ? 0 : encode_table[tree[i].value].code,
(tree[i].value == -1) ? 0 : encode_table[tree[i].value].bits);
}
fprintf(stderr, "};\n\n\n**************( stop copying )**************\n\n");
for (int i = 0; i < 256; ++i) {
uint8_t data[4] = {0};
uint8_t result = 0;
size_t r_pos = 0;
uint32_t code = ordered[i].code;
code <<= 32 - ordered[i].bits;
code |= (1UL << (32 - ordered[i].bits)) - 1;
data[0] = (code >> 24) & 0xFF;
data[1] = (code >> 16) & 0xFF;
data[2] = (code >> 8) & 0xFF;
data[3] = (code >> 0) & 0xFF;
hpack_huffman_unpack(&result, 1, &data, 4, &r_pos);
r_pos = 0;
if (result != ordered[i].value) {
fprintf(stderr, "ERR: (%u) %u != %u (%d, %d)\n", data[0], result,
ordered[i].value,
hpack_huffman_unpack(&result, 1, &data, 1, &r_pos), i);
exit(-1);
}
}
hpack_test();
}
int main(void) {
huffman__print_tree();
return 0;
}
#endif
/* *****************************************************************************
Paste auto-generated data here
***************************************************************************** */
/** Static Huffman encoding map, left aligned */
static const huffman_encode_s huffman_encode_table[] = {
{.code = 0xFFC00000, .bits = 13}, // [0]
{.code = 0xFFFFB000, .bits = 23}, // [1]
{.code = 0xFFFFFE20, .bits = 28}, // [2]
{.code = 0xFFFFFE30, .bits = 28}, // [3]
{.code = 0xFFFFFE40, .bits = 28}, // [4]
{.code = 0xFFFFFE50, .bits = 28}, // [5]
{.code = 0xFFFFFE60, .bits = 28}, // [6]
{.code = 0xFFFFFE70, .bits = 28}, // [7]
{.code = 0xFFFFFE80, .bits = 28}, // [8]
{.code = 0xFFFFEA00, .bits = 24}, // [9]
{.code = 0xFFFFFFF0, .bits = 30}, // [10]
{.code = 0xFFFFFE90, .bits = 28}, // [11]
{.code = 0xFFFFFEA0, .bits = 28}, // [12]
{.code = 0xFFFFFFF4, .bits = 30}, // [13]
{.code = 0xFFFFFEB0, .bits = 28}, // [14]
{.code = 0xFFFFFEC0, .bits = 28}, // [15]
{.code = 0xFFFFFED0, .bits = 28}, // [16]
{.code = 0xFFFFFEE0, .bits = 28}, // [17]
{.code = 0xFFFFFEF0, .bits = 28}, // [18]
{.code = 0xFFFFFF00, .bits = 28}, // [19]
{.code = 0xFFFFFF10, .bits = 28}, // [20]
{.code = 0xFFFFFF20, .bits = 28}, // [21]
{.code = 0xFFFFFFF8, .bits = 30}, // [22]
{.code = 0xFFFFFF30, .bits = 28}, // [23]
{.code = 0xFFFFFF40, .bits = 28}, // [24]
{.code = 0xFFFFFF50, .bits = 28}, // [25]
{.code = 0xFFFFFF60, .bits = 28}, // [26]
{.code = 0xFFFFFF70, .bits = 28}, // [27]
{.code = 0xFFFFFF80, .bits = 28}, // [28]
{.code = 0xFFFFFF90, .bits = 28}, // [29]
{.code = 0xFFFFFFA0, .bits = 28}, // [30]
{.code = 0xFFFFFFB0, .bits = 28}, // [31]
{.code = 0x50000000, .bits = 6}, // [32]
{.code = 0xFE000000, .bits = 10}, // [33]
{.code = 0xFE400000, .bits = 10}, // [34]
{.code = 0xFFA00000, .bits = 12}, // [35]
{.code = 0xFFC80000, .bits = 13}, // [36]
{.code = 0x54000000, .bits = 6}, // [37]
{.code = 0xF8000000, .bits = 8}, // [38]
{.code = 0xFF400000, .bits = 11}, // [39]
{.code = 0xFE800000, .bits = 10}, // [40]
{.code = 0xFEC00000, .bits = 10}, // [41]
{.code = 0xF9000000, .bits = 8}, // [42]
{.code = 0xFF600000, .bits = 11}, // [43]
{.code = 0xFA000000, .bits = 8}, // [44]
{.code = 0x58000000, .bits = 6}, // [45]
{.code = 0x5C000000, .bits = 6}, // [46]
{.code = 0x60000000, .bits = 6}, // [47]
{.code = 0x00000000, .bits = 5}, // [48]
{.code = 0x08000000, .bits = 5}, // [49]
{.code = 0x10000000, .bits = 5}, // [50]
{.code = 0x64000000, .bits = 6}, // [51]
{.code = 0x68000000, .bits = 6}, // [52]
{.code = 0x6C000000, .bits = 6}, // [53]
{.code = 0x70000000, .bits = 6}, // [54]
{.code = 0x74000000, .bits = 6}, // [55]
{.code = 0x78000000, .bits = 6}, // [56]
{.code = 0x7C000000, .bits = 6}, // [57]
{.code = 0xB8000000, .bits = 7}, // [58]
{.code = 0xFB000000, .bits = 8}, // [59]
{.code = 0xFFF80000, .bits = 15}, // [60]
{.code = 0x80000000, .bits = 6}, // [61]
{.code = 0xFFB00000, .bits = 12}, // [62]
{.code = 0xFF000000, .bits = 10}, // [63]
{.code = 0xFFD00000, .bits = 13}, // [64]
{.code = 0x84000000, .bits = 6}, // [65]
{.code = 0xBA000000, .bits = 7}, // [66]
{.code = 0xBC000000, .bits = 7}, // [67]
{.code = 0xBE000000, .bits = 7}, // [68]
{.code = 0xC0000000, .bits = 7}, // [69]
{.code = 0xC2000000, .bits = 7}, // [70]
{.code = 0xC4000000, .bits = 7}, // [71]
{.code = 0xC6000000, .bits = 7}, // [72]
{.code = 0xC8000000, .bits = 7}, // [73]
{.code = 0xCA000000, .bits = 7}, // [74]
{.code = 0xCC000000, .bits = 7}, // [75]
{.code = 0xCE000000, .bits = 7}, // [76]
{.code = 0xD0000000, .bits = 7}, // [77]
{.code = 0xD2000000, .bits = 7}, // [78]
{.code = 0xD4000000, .bits = 7}, // [79]
{.code = 0xD6000000, .bits = 7}, // [80]
{.code = 0xD8000000, .bits = 7}, // [81]
{.code = 0xDA000000, .bits = 7}, // [82]
{.code = 0xDC000000, .bits = 7}, // [83]
{.code = 0xDE000000, .bits = 7}, // [84]
{.code = 0xE0000000, .bits = 7}, // [85]
{.code = 0xE2000000, .bits = 7}, // [86]
{.code = 0xE4000000, .bits = 7}, // [87]
{.code = 0xFC000000, .bits = 8}, // [88]
{.code = 0xE6000000, .bits = 7}, // [89]
{.code = 0xFD000000, .bits = 8}, // [90]
{.code = 0xFFD80000, .bits = 13}, // [91]
{.code = 0xFFFE0000, .bits = 19}, // [92]
{.code = 0xFFE00000, .bits = 13}, // [93]
{.code = 0xFFF00000, .bits = 14}, // [94]
{.code = 0x88000000, .bits = 6}, // [95]
{.code = 0xFFFA0000, .bits = 15}, // [96]
{.code = 0x18000000, .bits = 5}, // [97]
{.code = 0x8C000000, .bits = 6}, // [98]
{.code = 0x20000000, .bits = 5}, // [99]
{.code = 0x90000000, .bits = 6}, // [100]
{.code = 0x28000000, .bits = 5}, // [101]
{.code = 0x94000000, .bits = 6}, // [102]
{.code = 0x98000000, .bits = 6}, // [103]
{.code = 0x9C000000, .bits = 6}, // [104]
{.code = 0x30000000, .bits = 5}, // [105]
{.code = 0xE8000000, .bits = 7}, // [106]
{.code = 0xEA000000, .bits = 7}, // [107]
{.code = 0xA0000000, .bits = 6}, // [108]
{.code = 0xA4000000, .bits = 6}, // [109]
{.code = 0xA8000000, .bits = 6}, // [110]
{.code = 0x38000000, .bits = 5}, // [111]
{.code = 0xAC000000, .bits = 6}, // [112]
{.code = 0xEC000000, .bits = 7}, // [113]
{.code = 0xB0000000, .bits = 6}, // [114]
{.code = 0x40000000, .bits = 5}, // [115]
{.code = 0x48000000, .bits = 5}, // [116]
{.code = 0xB4000000, .bits = 6}, // [117]
{.code = 0xEE000000, .bits = 7}, // [118]
{.code = 0xF0000000, .bits = 7}, // [119]
{.code = 0xF2000000, .bits = 7}, // [120]
{.code = 0xF4000000, .bits = 7}, // [121]
{.code = 0xF6000000, .bits = 7}, // [122]
{.code = 0xFFFC0000, .bits = 15}, // [123]
{.code = 0xFF800000, .bits = 11}, // [124]
{.code = 0xFFF40000, .bits = 14}, // [125]
{.code = 0xFFE80000, .bits = 13}, // [126]
{.code = 0xFFFFFFC0, .bits = 28}, // [127]
{.code = 0xFFFE6000, .bits = 20}, // [128]
{.code = 0xFFFF4800, .bits = 22}, // [129]
{.code = 0xFFFE7000, .bits = 20}, // [130]
{.code = 0xFFFE8000, .bits = 20}, // [131]
{.code = 0xFFFF4C00, .bits = 22}, // [132]
{.code = 0xFFFF5000, .bits = 22}, // [133]
{.code = 0xFFFF5400, .bits = 22}, // [134]
{.code = 0xFFFFB200, .bits = 23}, // [135]
{.code = 0xFFFF5800, .bits = 22}, // [136]
{.code = 0xFFFFB400, .bits = 23}, // [137]
{.code = 0xFFFFB600, .bits = 23}, // [138]
{.code = 0xFFFFB800, .bits = 23}, // [139]
{.code = 0xFFFFBA00, .bits = 23}, // [140]
{.code = 0xFFFFBC00, .bits = 23}, // [141]
{.code = 0xFFFFEB00, .bits = 24}, // [142]
{.code = 0xFFFFBE00, .bits = 23}, // [143]
{.code = 0xFFFFEC00, .bits = 24}, // [144]
{.code = 0xFFFFED00, .bits = 24}, // [145]
{.code = 0xFFFF5C00, .bits = 22}, // [146]
{.code = 0xFFFFC000, .bits = 23}, // [147]
{.code = 0xFFFFEE00, .bits = 24}, // [148]
{.code = 0xFFFFC200, .bits = 23}, // [149]
{.code = 0xFFFFC400, .bits = 23}, // [150]
{.code = 0xFFFFC600, .bits = 23}, // [151]
{.code = 0xFFFFC800, .bits = 23}, // [152]
{.code = 0xFFFEE000, .bits = 21}, // [153]
{.code = 0xFFFF6000, .bits = 22}, // [154]
{.code = 0xFFFFCA00, .bits = 23}, // [155]
{.code = 0xFFFF6400, .bits = 22}, // [156]
{.code = 0xFFFFCC00, .bits = 23}, // [157]
{.code = 0xFFFFCE00, .bits = 23}, // [158]
{.code = 0xFFFFEF00, .bits = 24}, // [159]
{.code = 0xFFFF6800, .bits = 22}, // [160]
{.code = 0xFFFEE800, .bits = 21}, // [161]
{.code = 0xFFFE9000, .bits = 20}, // [162]
{.code = 0xFFFF6C00, .bits = 22}, // [163]
{.code = 0xFFFF7000, .bits = 22}, // [164]
{.code = 0xFFFFD000, .bits = 23}, // [165]
{.code = 0xFFFFD200, .bits = 23}, // [166]
{.code = 0xFFFEF000, .bits = 21}, // [167]
{.code = 0xFFFFD400, .bits = 23}, // [168]
{.code = 0xFFFF7400, .bits = 22}, // [169]
{.code = 0xFFFF7800, .bits = 22}, // [170]
{.code = 0xFFFFF000, .bits = 24}, // [171]
{.code = 0xFFFEF800, .bits = 21}, // [172]
{.code = 0xFFFF7C00, .bits = 22}, // [173]
{.code = 0xFFFFD600, .bits = 23}, // [174]
{.code = 0xFFFFD800, .bits = 23}, // [175]
{.code = 0xFFFF0000, .bits = 21}, // [176]
{.code = 0xFFFF0800, .bits = 21}, // [177]
{.code = 0xFFFF8000, .bits = 22}, // [178]
{.code = 0xFFFF1000, .bits = 21}, // [179]
{.code = 0xFFFFDA00, .bits = 23}, // [180]
{.code = 0xFFFF8400, .bits = 22}, // [181]
{.code = 0xFFFFDC00, .bits = 23}, // [182]
{.code = 0xFFFFDE00, .bits = 23}, // [183]
{.code = 0xFFFEA000, .bits = 20}, // [184]
{.code = 0xFFFF8800, .bits = 22}, // [185]
{.code = 0xFFFF8C00, .bits = 22}, // [186]
{.code = 0xFFFF9000, .bits = 22}, // [187]
{.code = 0xFFFFE000, .bits = 23}, // [188]
{.code = 0xFFFF9400, .bits = 22}, // [189]
{.code = 0xFFFF9800, .bits = 22}, // [190]
{.code = 0xFFFFE200, .bits = 23}, // [191]
{.code = 0xFFFFF800, .bits = 26}, // [192]
{.code = 0xFFFFF840, .bits = 26}, // [193]
{.code = 0xFFFEB000, .bits = 20}, // [194]
{.code = 0xFFFE2000, .bits = 19}, // [195]
{.code = 0xFFFF9C00, .bits = 22}, // [196]
{.code = 0xFFFFE400, .bits = 23}, // [197]
{.code = 0xFFFFA000, .bits = 22}, // [198]
{.code = 0xFFFFF600, .bits = 25}, // [199]
{.code = 0xFFFFF880, .bits = 26}, // [200]
{.code = 0xFFFFF8C0, .bits = 26}, // [201]
{.code = 0xFFFFF900, .bits = 26}, // [202]
{.code = 0xFFFFFBC0, .bits = 27}, // [203]
{.code = 0xFFFFFBE0, .bits = 27}, // [204]
{.code = 0xFFFFF940, .bits = 26}, // [205]
{.code = 0xFFFFF100, .bits = 24}, // [206]
{.code = 0xFFFFF680, .bits = 25}, // [207]
{.code = 0xFFFE4000, .bits = 19}, // [208]
{.code = 0xFFFF1800, .bits = 21}, // [209]
{.code = 0xFFFFF980, .bits = 26}, // [210]
{.code = 0xFFFFFC00, .bits = 27}, // [211]
{.code = 0xFFFFFC20, .bits = 27}, // [212]
{.code = 0xFFFFF9C0, .bits = 26}, // [213]
{.code = 0xFFFFFC40, .bits = 27}, // [214]
{.code = 0xFFFFF200, .bits = 24}, // [215]
{.code = 0xFFFF2000, .bits = 21}, // [216]
{.code = 0xFFFF2800, .bits = 21}, // [217]
{.code = 0xFFFFFA00, .bits = 26}, // [218]
{.code = 0xFFFFFA40, .bits = 26}, // [219]
{.code = 0xFFFFFFD0, .bits = 28}, // [220]
{.code = 0xFFFFFC60, .bits = 27}, // [221]
{.code = 0xFFFFFC80, .bits = 27}, // [222]
{.code = 0xFFFFFCA0, .bits = 27}, // [223]
{.code = 0xFFFEC000, .bits = 20}, // [224]
{.code = 0xFFFFF300, .bits = 24}, // [225]
{.code = 0xFFFED000, .bits = 20}, // [226]
{.code = 0xFFFF3000, .bits = 21}, // [227]
{.code = 0xFFFFA400, .bits = 22}, // [228]
{.code = 0xFFFF3800, .bits = 21}, // [229]
{.code = 0xFFFF4000, .bits = 21}, // [230]
{.code = 0xFFFFE600, .bits = 23}, // [231]
{.code = 0xFFFFA800, .bits = 22}, // [232]
{.code = 0xFFFFAC00, .bits = 22}, // [233]
{.code = 0xFFFFF700, .bits = 25}, // [234]
{.code = 0xFFFFF780, .bits = 25}, // [235]
{.code = 0xFFFFF400, .bits = 24}, // [236]
{.code = 0xFFFFF500, .bits = 24}, // [237]
{.code = 0xFFFFFA80, .bits = 26}, // [238]
{.code = 0xFFFFE800, .bits = 23}, // [239]
{.code = 0xFFFFFAC0, .bits = 26}, // [240]
{.code = 0xFFFFFCC0, .bits = 27}, // [241]
{.code = 0xFFFFFB00, .bits = 26}, // [242]
{.code = 0xFFFFFB40, .bits = 26}, // [243]
{.code = 0xFFFFFCE0, .bits = 27}, // [244]
{.code = 0xFFFFFD00, .bits = 27}, // [245]
{.code = 0xFFFFFD20, .bits = 27}, // [246]
{.code = 0xFFFFFD40, .bits = 27}, // [247]
{.code = 0xFFFFFD60, .bits = 27}, // [248]
{.code = 0xFFFFFFE0, .bits = 28}, // [249]
{.code = 0xFFFFFD80, .bits = 27}, // [250]
{.code = 0xFFFFFDA0, .bits = 27}, // [251]
{.code = 0xFFFFFDC0, .bits = 27}, // [252]
{.code = 0xFFFFFDE0, .bits = 27}, // [253]
{.code = 0xFFFFFE00, .bits = 27}, // [254]
{.code = 0xFFFFFB80, .bits = 26}, // [255]
{.code = 0xFFFFFFFC, .bits = 30}, // [256]
};
/** Static Huffman decoding tree, flattened as an array */
static const huffman_decode_s huffman_decode_tree[] = {
{.value = -1, .offset = {1, 44}}, // [0]
{.value = -1, .offset = {1, 16}}, // [1]
{.value = -1, .offset = {1, 8}}, // [2]
{.value = -1, .offset = {1, 4}}, // [3]
{.value = -1, .offset = {1, 2}}, // [4]
{.value = 48, .offset = {0, 0}}, // [5]:0b00000
{.value = 49, .offset = {0, 0}}, // [6]:0b00001
{.value = -1, .offset = {1, 2}}, // [7]
{.value = 50, .offset = {0, 0}}, // [8]:0b00010
{.value = 97, .offset = {0, 0}}, // [9]:0b00011
{.value = -1, .offset = {1, 4}}, // [10]
{.value = -1, .offset = {1, 2}}, // [11]
{.value = 99, .offset = {0, 0}}, // [12]:0b00100
{.value = 101, .offset = {0, 0}}, // [13]:0b00101
{.value = -1, .offset = {1, 2}}, // [14]
{.value = 105, .offset = {0, 0}}, // [15]:0b00110
{.value = 111, .offset = {0, 0}}, // [16]:0b00111
{.value = -1, .offset = {1, 12}}, // [17]
{.value = -1, .offset = {1, 4}}, // [18]
{.value = -1, .offset = {1, 2}}, // [19]
{.value = 115, .offset = {0, 0}}, // [20]:0b01000
{.value = 116, .offset = {0, 0}}, // [21]:0b01001
{.value = -1, .offset = {1, 4}}, // [22]
{.value = -1, .offset = {1, 2}}, // [23]
{.value = 32, .offset = {0, 0}}, // [24]:0b010100
{.value = 37, .offset = {0, 0}}, // [25]:0b010101
{.value = -1, .offset = {1, 2}}, // [26]
{.value = 45, .offset = {0, 0}}, // [27]:0b010110
{.value = 46, .offset = {0, 0}}, // [28]:0b010111
{.value = -1, .offset = {1, 8}}, // [29]
{.value = -1, .offset = {1, 4}}, // [30]
{.value = -1, .offset = {1, 2}}, // [31]
{.value = 47, .offset = {0, 0}}, // [32]:0b011000
{.value = 51, .offset = {0, 0}}, // [33]:0b011001
{.value = -1, .offset = {1, 2}}, // [34]
{.value = 52, .offset = {0, 0}}, // [35]:0b011010
{.value = 53, .offset = {0, 0}}, // [36]:0b011011
{.value = -1, .offset = {1, 4}}, // [37]
{.value = -1, .offset = {1, 2}}, // [38]
{.value = 54, .offset = {0, 0}}, // [39]:0b011100
{.value = 55, .offset = {0, 0}}, // [40]:0b011101
{.value = -1, .offset = {1, 2}}, // [41]
{.value = 56, .offset = {0, 0}}, // [42]:0b011110
{.value = 57, .offset = {0, 0}}, // [43]:0b011111
{.value = -1, .offset = {1, 36}}, // [44]
{.value = -1, .offset = {1, 16}}, // [45]
{.value = -1, .offset = {1, 8}}, // [46]
{.value = -1, .offset = {1, 4}}, // [47]
{.value = -1, .offset = {1, 2}}, // [48]
{.value = 61, .offset = {0, 0}}, // [49]:0b100000
{.value = 65, .offset = {0, 0}}, // [50]:0b100001
{.value = -1, .offset = {1, 2}}, // [51]
{.value = 95, .offset = {0, 0}}, // [52]:0b100010
{.value = 98, .offset = {0, 0}}, // [53]:0b100011
{.value = -1, .offset = {1, 4}}, // [54]
{.value = -1, .offset = {1, 2}}, // [55]
{.value = 100, .offset = {0, 0}}, // [56]:0b100100
{.value = 102, .offset = {0, 0}}, // [57]:0b100101
{.value = -1, .offset = {1, 2}}, // [58]
{.value = 103, .offset = {0, 0}}, // [59]:0b100110
{.value = 104, .offset = {0, 0}}, // [60]:0b100111
{.value = -1, .offset = {1, 8}}, // [61]
{.value = -1, .offset = {1, 4}}, // [62]
{.value = -1, .offset = {1, 2}}, // [63]
{.value = 108, .offset = {0, 0}}, // [64]:0b101000
{.value = 109, .offset = {0, 0}}, // [65]:0b101001
{.value = -1, .offset = {1, 2}}, // [66]
{.value = 110, .offset = {0, 0}}, // [67]:0b101010
{.value = 112, .offset = {0, 0}}, // [68]:0b101011
{.value = -1, .offset = {1, 4}}, // [69]
{.value = -1, .offset = {1, 2}}, // [70]
{.value = 114, .offset = {0, 0}}, // [71]:0b101100
{.value = 117, .offset = {0, 0}}, // [72]:0b101101
{.value = -1, .offset = {1, 4}}, // [73]
{.value = -1, .offset = {1, 2}}, // [74]
{.value = 58, .offset = {0, 0}}, // [75]:0b1011100
{.value = 66, .offset = {0, 0}}, // [76]:0b1011101
{.value = -1, .offset = {1, 2}}, // [77]
{.value = 67, .offset = {0, 0}}, // [78]:0b1011110
{.value = 68, .offset = {0, 0}}, // [79]:0b1011111
{.value = -1, .offset = {1, 32}}, // [80]
{.value = -1, .offset = {1, 16}}, // [81]
{.value = -1, .offset = {1, 8}}, // [82]
{.value = -1, .offset = {1, 4}}, // [83]
{.value = -1, .offset = {1, 2}}, // [84]
{.value = 69, .offset = {0, 0}}, // [85]:0b1100000
{.value = 70, .offset = {0, 0}}, // [86]:0b1100001
{.value = -1, .offset = {1, 2}}, // [87]
{.value = 71, .offset = {0, 0}}, // [88]:0b1100010
{.value = 72, .offset = {0, 0}}, // [89]:0b1100011
{.value = -1, .offset = {1, 4}}, // [90]
{.value = -1, .offset = {1, 2}}, // [91]
{.value = 73, .offset = {0, 0}}, // [92]:0b1100100
{.value = 74, .offset = {0, 0}}, // [93]:0b1100101
{.value = -1, .offset = {1, 2}}, // [94]
{.value = 75, .offset = {0, 0}}, // [95]:0b1100110
{.value = 76, .offset = {0, 0}}, // [96]:0b1100111
{.value = -1, .offset = {1, 8}}, // [97]
{.value = -1, .offset = {1, 4}}, // [98]
{.value = -1, .offset = {1, 2}}, // [99]
{.value = 77, .offset = {0, 0}}, // [100]:0b1101000
{.value = 78, .offset = {0, 0}}, // [101]:0b1101001
{.value = -1, .offset = {1, 2}}, // [102]
{.value = 79, .offset = {0, 0}}, // [103]:0b1101010
{.value = 80, .offset = {0, 0}}, // [104]:0b1101011
{.value = -1, .offset = {1, 4}}, // [105]
{.value = -1, .offset = {1, 2}}, // [106]
{.value = 81, .offset = {0, 0}}, // [107]:0b1101100
{.value = 82, .offset = {0, 0}}, // [108]:0b1101101
{.value = -1, .offset = {1, 2}}, // [109]
{.value = 83, .offset = {0, 0}}, // [110]:0b1101110
{.value = 84, .offset = {0, 0}}, // [111]:0b1101111
{.value = -1, .offset = {1, 16}}, // [112]
{.value = -1, .offset = {1, 8}}, // [113]
{.value = -1, .offset = {1, 4}}, // [114]
{.value = -1, .offset = {1, 2}}, // [115]
{.value = 85, .offset = {0, 0}}, // [116]:0b1110000
{.value = 86, .offset = {0, 0}}, // [117]:0b1110001
{.value = -1, .offset = {1, 2}}, // [118]
{.value = 87, .offset = {0, 0}}, // [119]:0b1110010
{.value = 89, .offset = {0, 0}}, // [120]:0b1110011
{.value = -1, .offset = {1, 4}}, // [121]
{.value = -1, .offset = {1, 2}}, // [122]
{.value = 106, .offset = {0, 0}}, // [123]:0b1110100
{.value = 107, .offset = {0, 0}}, // [124]:0b1110101
{.value = -1, .offset = {1, 2}}, // [125]
{.value = 113, .offset = {0, 0}}, // [126]:0b1110110
{.value = 118, .offset = {0, 0}}, // [127]:0b1110111
{.value = -1, .offset = {1, 8}}, // [128]
{.value = -1, .offset = {1, 4}}, // [129]
{.value = -1, .offset = {1, 2}}, // [130]
{.value = 119, .offset = {0, 0}}, // [131]:0b1111000
{.value = 120, .offset = {0, 0}}, // [132]:0b1111001
{.value = -1, .offset = {1, 2}}, // [133]
{.value = 121, .offset = {0, 0}}, // [134]:0b1111010
{.value = 122, .offset = {0, 0}}, // [135]:0b1111011
{.value = -1, .offset = {1, 8}}, // [136]
{.value = -1, .offset = {1, 4}}, // [137]
{.value = -1, .offset = {1, 2}}, // [138]
{.value = 38, .offset = {0, 0}}, // [139]:0b11111000
{.value = 42, .offset = {0, 0}}, // [140]:0b11111001
{.value = -1, .offset = {1, 2}}, // [141]
{.value = 44, .offset = {0, 0}}, // [142]:0b11111010
{.value = 59, .offset = {0, 0}}, // [143]:0b11111011
{.value = -1, .offset = {1, 4}}, // [144]
{.value = -1, .offset = {1, 2}}, // [145]
{.value = 88, .offset = {0, 0}}, // [146]:0b11111100
{.value = 90, .offset = {0, 0}}, // [147]:0b11111101
{.value = -1, .offset = {1, 8}}, // [148]
{.value = -1, .offset = {1, 4}}, // [149]
{.value = -1, .offset = {1, 2}}, // [150]
{.value = 33, .offset = {0, 0}}, // [151]:0b1111111000
{.value = 34, .offset = {0, 0}}, // [152]:0b1111111001
{.value = -1, .offset = {1, 2}}, // [153]
{.value = 40, .offset = {0, 0}}, // [154]:0b1111111010
{.value = 41, .offset = {0, 0}}, // [155]:0b1111111011
{.value = -1, .offset = {1, 6}}, // [156]
{.value = -1, .offset = {1, 2}}, // [157]
{.value = 63, .offset = {0, 0}}, // [158]:0b1111111100
{.value = -1, .offset = {1, 2}}, // [159]
{.value = 39, .offset = {0, 0}}, // [160]:0b11111111010
{.value = 43, .offset = {0, 0}}, // [161]:0b11111111011
{.value = -1, .offset = {1, 6}}, // [162]
{.value = -1, .offset = {1, 2}}, // [163]
{.value = 124, .offset = {0, 0}}, // [164]:0b11111111100
{.value = -1, .offset = {1, 2}}, // [165]
{.value = 35, .offset = {0, 0}}, // [166]:0b111111111010
{.value = 62, .offset = {0, 0}}, // [167]:0b111111111011
{.value = -1, .offset = {1, 8}}, // [168]
{.value = -1, .offset = {1, 4}}, // [169]
{.value = -1, .offset = {1, 2}}, // [170]
{.value = 0, .offset = {0, 0}}, // [171]:0b1111111111000
{.value = 36, .offset = {0, 0}}, // [172]:0b1111111111001
{.value = -1, .offset = {1, 2}}, // [173]
{.value = 64, .offset = {0, 0}}, // [174]:0b1111111111010
{.value = 91, .offset = {0, 0}}, // [175]:0b1111111111011
{.value = -1, .offset = {1, 4}}, // [176]
{.value = -1, .offset = {1, 2}}, // [177]
{.value = 93, .offset = {0, 0}}, // [178]:0b1111111111100
{.value = 126, .offset = {0, 0}}, // [179]:0b1111111111101
{.value = -1, .offset = {1, 4}}, // [180]
{.value = -1, .offset = {1, 2}}, // [181]
{.value = 94, .offset = {0, 0}}, // [182]:0b11111111111100
{.value = 125, .offset = {0, 0}}, // [183]:0b11111111111101
{.value = -1, .offset = {1, 4}}, // [184]
{.value = -1, .offset = {1, 2}}, // [185]
{.value = 60, .offset = {0, 0}}, // [186]:0b111111111111100
{.value = 96, .offset = {0, 0}}, // [187]:0b111111111111101
{.value = -1, .offset = {1, 2}}, // [188]
{.value = 123, .offset = {0, 0}}, // [189]:0b111111111111110
{.value = -1, .offset = {1, 30}}, // [190]
{.value = -1, .offset = {1, 10}}, // [191]
{.value = -1, .offset = {1, 4}}, // [192]
{.value = -1, .offset = {1, 2}}, // [193]
{.value = 92, .offset = {0, 0}}, // [194]:0b1111111111111110000
{.value = 195, .offset = {0, 0}}, // [195]:0b1111111111111110001
{.value = -1, .offset = {1, 2}}, // [196]
{.value = 208, .offset = {0, 0}}, // [197]:0b1111111111111110010
{.value = -1, .offset = {1, 2}}, // [198]
{.value = 128, .offset = {0, 0}}, // [199]:0b11111111111111100110
{.value = 130, .offset = {0, 0}}, // [200]:0b11111111111111100111
{.value = -1, .offset = {1, 8}}, // [201]
{.value = -1, .offset = {1, 4}}, // [202]
{.value = -1, .offset = {1, 2}}, // [203]
{.value = 131, .offset = {0, 0}}, // [204]:0b11111111111111101000
{.value = 162, .offset = {0, 0}}, // [205]:0b11111111111111101001
{.value = -1, .offset = {1, 2}}, // [206]
{.value = 184, .offset = {0, 0}}, // [207]:0b11111111111111101010
{.value = 194, .offset = {0, 0}}, // [208]:0b11111111111111101011
{.value = -1, .offset = {1, 4}}, // [209]
{.value = -1, .offset = {1, 2}}, // [210]
{.value = 224, .offset = {0, 0}}, // [211]:0b11111111111111101100
{.value = 226, .offset = {0, 0}}, // [212]:0b11111111111111101101
{.value = -1, .offset = {1, 4}}, // [213]
{.value = -1, .offset = {1, 2}}, // [214]
{.value = 153, .offset = {0, 0}}, // [215]:0b111111111111111011100
{.value = 161, .offset = {0, 0}}, // [216]:0b111111111111111011101
{.value = -1, .offset = {1, 2}}, // [217]
{.value = 167, .offset = {0, 0}}, // [218]:0b111111111111111011110
{.value = 172, .offset = {0, 0}}, // [219]:0b111111111111111011111
{.value = -1, .offset = {1, 46}}, // [220]
{.value = -1, .offset = {1, 16}}, // [221]
{.value = -1, .offset = {1, 8}}, // [222]
{.value = -1, .offset = {1, 4}}, // [223]
{.value = -1, .offset = {1, 2}}, // [224]
{.value = 176, .offset = {0, 0}}, // [225]:0b111111111111111100000
{.value = 177, .offset = {0, 0}}, // [226]:0b111111111111111100001
{.value = -1, .offset = {1, 2}}, // [227]
{.value = 179, .offset = {0, 0}}, // [228]:0b111111111111111100010
{.value = 209, .offset = {0, 0}}, // [229]:0b111111111111111100011
{.value = -1, .offset = {1, 4}}, // [230]
{.value = -1, .offset = {1, 2}}, // [231]
{.value = 216, .offset = {0, 0}}, // [232]:0b111111111111111100100
{.value = 217, .offset = {0, 0}}, // [233]:0b111111111111111100101
{.value = -1, .offset = {1, 2}}, // [234]
{.value = 227, .offset = {0, 0}}, // [235]:0b111111111111111100110
{.value = 229, .offset = {0, 0}}, // [236]:0b111111111111111100111
{.value = -1, .offset = {1, 14}}, // [237]
{.value = -1, .offset = {1, 6}}, // [238]
{.value = -1, .offset = {1, 2}}, // [239]
{.value = 230, .offset = {0, 0}}, // [240]:0b111111111111111101000
{.value = -1, .offset = {1, 2}}, // [241]
{.value = 129, .offset = {0, 0}}, // [242]:0b1111111111111111010010
{.value = 132, .offset = {0, 0}}, // [243]:0b1111111111111111010011
{.value = -1, .offset = {1, 4}}, // [244]
{.value = -1, .offset = {1, 2}}, // [245]
{.value = 133, .offset = {0, 0}}, // [246]:0b1111111111111111010100
{.value = 134, .offset = {0, 0}}, // [247]:0b1111111111111111010101
{.value = -1, .offset = {1, 2}}, // [248]
{.value = 136, .offset = {0, 0}}, // [249]:0b1111111111111111010110
{.value = 146, .offset = {0, 0}}, // [250]:0b1111111111111111010111
{.value = -1, .offset = {1, 8}}, // [251]
{.value = -1, .offset = {1, 4}}, // [252]
{.value = -1, .offset = {1, 2}}, // [253]
{.value = 154, .offset = {0, 0}}, // [254]:0b1111111111111111011000
{.value = 156, .offset = {0, 0}}, // [255]:0b1111111111111111011001
{.value = -1, .offset = {1, 2}}, // [256]
{.value = 160, .offset = {0, 0}}, // [257]:0b1111111111111111011010
{.value = 163, .offset = {0, 0}}, // [258]:0b1111111111111111011011
{.value = -1, .offset = {1, 4}}, // [259]
{.value = -1, .offset = {1, 2}}, // [260]
{.value = 164, .offset = {0, 0}}, // [261]:0b1111111111111111011100
{.value = 169, .offset = {0, 0}}, // [262]:0b1111111111111111011101
{.value = -1, .offset = {1, 2}}, // [263]
{.value = 170, .offset = {0, 0}}, // [264]:0b1111111111111111011110
{.value = 173, .offset = {0, 0}}, // [265]:0b1111111111111111011111
{.value = -1, .offset = {1, 40}}, // [266]
{.value = -1, .offset = {1, 16}}, // [267]
{.value = -1, .offset = {1, 8}}, // [268]
{.value = -1, .offset = {1, 4}}, // [269]
{.value = -1, .offset = {1, 2}}, // [270]
{.value = 178, .offset = {0, 0}}, // [271]:0b1111111111111111100000
{.value = 181, .offset = {0, 0}}, // [272]:0b1111111111111111100001
{.value = -1, .offset = {1, 2}}, // [273]
{.value = 185, .offset = {0, 0}}, // [274]:0b1111111111111111100010
{.value = 186, .offset = {0, 0}}, // [275]:0b1111111111111111100011
{.value = -1, .offset = {1, 4}}, // [276]
{.value = -1, .offset = {1, 2}}, // [277]
{.value = 187, .offset = {0, 0}}, // [278]:0b1111111111111111100100
{.value = 189, .offset = {0, 0}}, // [279]:0b1111111111111111100101
{.value = -1, .offset = {1, 2}}, // [280]
{.value = 190, .offset = {0, 0}}, // [281]:0b1111111111111111100110
{.value = 196, .offset = {0, 0}}, // [282]:0b1111111111111111100111
{.value = -1, .offset = {1, 8}}, // [283]
{.value = -1, .offset = {1, 4}}, // [284]
{.value = -1, .offset = {1, 2}}, // [285]
{.value = 198, .offset = {0, 0}}, // [286]:0b1111111111111111101000
{.value = 228, .offset = {0, 0}}, // [287]:0b1111111111111111101001
{.value = -1, .offset = {1, 2}}, // [288]
{.value = 232, .offset = {0, 0}}, // [289]:0b1111111111111111101010
{.value = 233, .offset = {0, 0}}, // [290]:0b1111111111111111101011
{.value = -1, .offset = {1, 8}}, // [291]
{.value = -1, .offset = {1, 4}}, // [292]
{.value = -1, .offset = {1, 2}}, // [293]
{.value = 1, .offset = {0, 0}}, // [294]:0b11111111111111111011000
{.value = 135, .offset = {0, 0}}, // [295]:0b11111111111111111011001
{.value = -1, .offset = {1, 2}}, // [296]
{.value = 137, .offset = {0, 0}}, // [297]:0b11111111111111111011010
{.value = 138, .offset = {0, 0}}, // [298]:0b11111111111111111011011
{.value = -1, .offset = {1, 4}}, // [299]
{.value = -1, .offset = {1, 2}}, // [300]
{.value = 139, .offset = {0, 0}}, // [301]:0b11111111111111111011100
{.value = 140, .offset = {0, 0}}, // [302]:0b11111111111111111011101
{.value = -1, .offset = {1, 2}}, // [303]
{.value = 141, .offset = {0, 0}}, // [304]:0b11111111111111111011110
{.value = 143, .offset = {0, 0}}, // [305]:0b11111111111111111011111
{.value = -1, .offset = {1, 32}}, // [306]
{.value = -1, .offset = {1, 16}}, // [307]
{.value = -1, .offset = {1, 8}}, // [308]
{.value = -1, .offset = {1, 4}}, // [309]
{.value = -1, .offset = {1, 2}}, // [310]
{.value = 147, .offset = {0, 0}}, // [311]:0b11111111111111111100000
{.value = 149, .offset = {0, 0}}, // [312]:0b11111111111111111100001
{.value = -1, .offset = {1, 2}}, // [313]
{.value = 150, .offset = {0, 0}}, // [314]:0b11111111111111111100010
{.value = 151, .offset = {0, 0}}, // [315]:0b11111111111111111100011
{.value = -1, .offset = {1, 4}}, // [316]
{.value = -1, .offset = {1, 2}}, // [317]
{.value = 152, .offset = {0, 0}}, // [318]:0b11111111111111111100100
{.value = 155, .offset = {0, 0}}, // [319]:0b11111111111111111100101
{.value = -1, .offset = {1, 2}}, // [320]
{.value = 157, .offset = {0, 0}}, // [321]:0b11111111111111111100110
{.value = 158, .offset = {0, 0}}, // [322]:0b11111111111111111100111
{.value = -1, .offset = {1, 8}}, // [323]
{.value = -1, .offset = {1, 4}}, // [324]
{.value = -1, .offset = {1, 2}}, // [325]
{.value = 165, .offset = {0, 0}}, // [326]:0b11111111111111111101000
{.value = 166, .offset = {0, 0}}, // [327]:0b11111111111111111101001
{.value = -1, .offset = {1, 2}}, // [328]
{.value = 168, .offset = {0, 0}}, // [329]:0b11111111111111111101010
{.value = 174, .offset = {0, 0}}, // [330]:0b11111111111111111101011
{.value = -1, .offset = {1, 4}}, // [331]
{.value = -1, .offset = {1, 2}}, // [332]
{.value = 175, .offset = {0, 0}}, // [333]:0b11111111111111111101100
{.value = 180, .offset = {0, 0}}, // [334]:0b11111111111111111101101
{.value = -1, .offset = {1, 2}}, // [335]
{.value = 182, .offset = {0, 0}}, // [336]:0b11111111111111111101110
{.value = 183, .offset = {0, 0}}, // [337]:0b11111111111111111101111
{.value = -1, .offset = {1, 22}}, // [338]
{.value = -1, .offset = {1, 8}}, // [339]
{.value = -1, .offset = {1, 4}}, // [340]
{.value = -1, .offset = {1, 2}}, // [341]
{.value = 188, .offset = {0, 0}}, // [342]:0b11111111111111111110000
{.value = 191, .offset = {0, 0}}, // [343]:0b11111111111111111110001
{.value = -1, .offset = {1, 2}}, // [344]
{.value = 197, .offset = {0, 0}}, // [345]:0b11111111111111111110010
{.value = 231, .offset = {0, 0}}, // [346]:0b11111111111111111110011
{.value = -1, .offset = {1, 6}}, // [347]
{.value = -1, .offset = {1, 2}}, // [348]
{.value = 239, .offset = {0, 0}}, // [349]:0b11111111111111111110100
{.value = -1, .offset = {1, 2}}, // [350]
{.value = 9, .offset = {0, 0}}, // [351]:0b111111111111111111101010
{.value = 142, .offset = {0, 0}}, // [352]:0b111111111111111111101011
{.value = -1, .offset = {1, 4}}, // [353]
{.value = -1, .offset = {1, 2}}, // [354]
{.value = 144, .offset = {0, 0}}, // [355]:0b111111111111111111101100
{.value = 145, .offset = {0, 0}}, // [356]:0b111111111111111111101101
{.value = -1, .offset = {1, 2}}, // [357]
{.value = 148, .offset = {0, 0}}, // [358]:0b111111111111111111101110
{.value = 159, .offset = {0, 0}}, // [359]:0b111111111111111111101111
{.value = -1, .offset = {1, 20}}, // [360]
{.value = -1, .offset = {1, 8}}, // [361]
{.value = -1, .offset = {1, 4}}, // [362]
{.value = -1, .offset = {1, 2}}, // [363]
{.value = 171, .offset = {0, 0}}, // [364]:0b111111111111111111110000
{.value = 206, .offset = {0, 0}}, // [365]:0b111111111111111111110001
{.value = -1, .offset = {1, 2}}, // [366]
{.value = 215, .offset = {0, 0}}, // [367]:0b111111111111111111110010
{.value = 225, .offset = {0, 0}}, // [368]:0b111111111111111111110011
{.value = -1, .offset = {1, 4}}, // [369]
{.value = -1, .offset = {1, 2}}, // [370]
{.value = 236, .offset = {0, 0}}, // [371]:0b111111111111111111110100
{.value = 237, .offset = {0, 0}}, // [372]:0b111111111111111111110101
{.value = -1, .offset = {1, 4}}, // [373]
{.value = -1, .offset = {1, 2}}, // [374]
{.value = 199, .offset = {0, 0}}, // [375]:0b1111111111111111111101100
{.value = 207, .offset = {0, 0}}, // [376]:0b1111111111111111111101101
{.value = -1, .offset = {1, 2}}, // [377]
{.value = 234, .offset = {0, 0}}, // [378]:0b1111111111111111111101110
{.value = 235, .offset = {0, 0}}, // [379]:0b1111111111111111111101111
{.value = -1, .offset = {1, 34}}, // [380]
{.value = -1, .offset = {1, 16}}, // [381]
{.value = -1, .offset = {1, 8}}, // [382]
{.value = -1, .offset = {1, 4}}, // [383]
{.value = -1, .offset = {1, 2}}, // [384]
{.value = 192, .offset = {0, 0}}, // [385]:0b11111111111111111111100000
{.value = 193, .offset = {0, 0}}, // [386]:0b11111111111111111111100001
{.value = -1, .offset = {1, 2}}, // [387]
{.value = 200, .offset = {0, 0}}, // [388]:0b11111111111111111111100010
{.value = 201, .offset = {0, 0}}, // [389]:0b11111111111111111111100011
{.value = -1, .offset = {1, 4}}, // [390]
{.value = -1, .offset = {1, 2}}, // [391]
{.value = 202, .offset = {0, 0}}, // [392]:0b11111111111111111111100100
{.value = 205, .offset = {0, 0}}, // [393]:0b11111111111111111111100101
{.value = -1, .offset = {1, 2}}, // [394]
{.value = 210, .offset = {0, 0}}, // [395]:0b11111111111111111111100110
{.value = 213, .offset = {0, 0}}, // [396]:0b11111111111111111111100111
{.value = -1, .offset = {1, 8}}, // [397]
{.value = -1, .offset = {1, 4}}, // [398]
{.value = -1, .offset = {1, 2}}, // [399]
{.value = 218, .offset = {0, 0}}, // [400]:0b11111111111111111111101000
{.value = 219, .offset = {0, 0}}, // [401]:0b11111111111111111111101001
{.value = -1, .offset = {1, 2}}, // [402]
{.value = 238, .offset = {0, 0}}, // [403]:0b11111111111111111111101010
{.value = 240, .offset = {0, 0}}, // [404]:0b11111111111111111111101011
{.value = -1, .offset = {1, 4}}, // [405]
{.value = -1, .offset = {1, 2}}, // [406]
{.value = 242, .offset = {0, 0}}, // [407]:0b11111111111111111111101100
{.value = 243, .offset = {0, 0}}, // [408]:0b11111111111111111111101101
{.value = -1, .offset = {1, 2}}, // [409]
{.value = 255, .offset = {0, 0}}, // [410]:0b11111111111111111111101110
{.value = -1, .offset = {1, 2}}, // [411]
{.value = 203, .offset = {0, 0}}, // [412]:0b111111111111111111111011110
{.value = 204, .offset = {0, 0}}, // [413]:0b111111111111111111111011111
{.value = -1, .offset = {1, 32}}, // [414]
{.value = -1, .offset = {1, 16}}, // [415]
{.value = -1, .offset = {1, 8}}, // [416]
{.value = -1, .offset = {1, 4}}, // [417]
{.value = -1, .offset = {1, 2}}, // [418]
{.value = 211, .offset = {0, 0}}, // [419]:0b111111111111111111111100000
{.value = 212, .offset = {0, 0}}, // [420]:0b111111111111111111111100001
{.value = -1, .offset = {1, 2}}, // [421]
{.value = 214, .offset = {0, 0}}, // [422]:0b111111111111111111111100010
{.value = 221, .offset = {0, 0}}, // [423]:0b111111111111111111111100011
{.value = -1, .offset = {1, 4}}, // [424]
{.value = -1, .offset = {1, 2}}, // [425]
{.value = 222, .offset = {0, 0}}, // [426]:0b111111111111111111111100100
{.value = 223, .offset = {0, 0}}, // [427]:0b111111111111111111111100101
{.value = -1, .offset = {1, 2}}, // [428]
{.value = 241, .offset = {0, 0}}, // [429]:0b111111111111111111111100110
{.value = 244, .offset = {0, 0}}, // [430]:0b111111111111111111111100111
{.value = -1, .offset = {1, 8}}, // [431]
{.value = -1, .offset = {1, 4}}, // [432]
{.value = -1, .offset = {1, 2}}, // [433]
{.value = 245, .offset = {0, 0}}, // [434]:0b111111111111111111111101000
{.value = 246, .offset = {0, 0}}, // [435]:0b111111111111111111111101001
{.value = -1, .offset = {1, 2}}, // [436]
{.value = 247, .offset = {0, 0}}, // [437]:0b111111111111111111111101010
{.value = 248, .offset = {0, 0}}, // [438]:0b111111111111111111111101011
{.value = -1, .offset = {1, 4}}, // [439]
{.value = -1, .offset = {1, 2}}, // [440]
{.value = 250, .offset = {0, 0}}, // [441]:0b111111111111111111111101100
{.value = 251, .offset = {0, 0}}, // [442]:0b111111111111111111111101101
{.value = -1, .offset = {1, 2}}, // [443]
{.value = 252, .offset = {0, 0}}, // [444]:0b111111111111111111111101110
{.value = 253, .offset = {0, 0}}, // [445]:0b111111111111111111111101111
{.value = -1, .offset = {1, 30}}, // [446]
{.value = -1, .offset = {1, 14}}, // [447]
{.value = -1, .offset = {1, 6}}, // [448]
{.value = -1, .offset = {1, 2}}, // [449]
{.value = 254, .offset = {0, 0}}, // [450]:0b111111111111111111111110000
{.value = -1, .offset = {1, 2}}, // [451]
{.value = 2, .offset = {0, 0}}, // [452]:0b1111111111111111111111100010
{.value = 3, .offset = {0, 0}}, // [453]:0b1111111111111111111111100011
{.value = -1, .offset = {1, 4}}, // [454]
{.value = -1, .offset = {1, 2}}, // [455]
{.value = 4, .offset = {0, 0}}, // [456]:0b1111111111111111111111100100
{.value = 5, .offset = {0, 0}}, // [457]:0b1111111111111111111111100101
{.value = -1, .offset = {1, 2}}, // [458]
{.value = 6, .offset = {0, 0}}, // [459]:0b1111111111111111111111100110
{.value = 7, .offset = {0, 0}}, // [460]:0b1111111111111111111111100111
{.value = -1, .offset = {1, 8}}, // [461]
{.value = -1, .offset = {1, 4}}, // [462]
{.value = -1, .offset = {1, 2}}, // [463]
{.value = 8, .offset = {0, 0}}, // [464]:0b1111111111111111111111101000
{.value = 11, .offset = {0, 0}}, // [465]:0b1111111111111111111111101001
{.value = -1, .offset = {1, 2}}, // [466]
{.value = 12, .offset = {0, 0}}, // [467]:0b1111111111111111111111101010
{.value = 14, .offset = {0, 0}}, // [468]:0b1111111111111111111111101011
{.value = -1, .offset = {1, 4}}, // [469]
{.value = -1, .offset = {1, 2}}, // [470]
{.value = 15, .offset = {0, 0}}, // [471]:0b1111111111111111111111101100
{.value = 16, .offset = {0, 0}}, // [472]:0b1111111111111111111111101101
{.value = -1, .offset = {1, 2}}, // [473]
{.value = 17, .offset = {0, 0}}, // [474]:0b1111111111111111111111101110
{.value = 18, .offset = {0, 0}}, // [475]:0b1111111111111111111111101111
{.value = -1, .offset = {1, 16}}, // [476]
{.value = -1, .offset = {1, 8}}, // [477]
{.value = -1, .offset = {1, 4}}, // [478]
{.value = -1, .offset = {1, 2}}, // [479]
{.value = 19, .offset = {0, 0}}, // [480]:0b1111111111111111111111110000
{.value = 20, .offset = {0, 0}}, // [481]:0b1111111111111111111111110001
{.value = -1, .offset = {1, 2}}, // [482]
{.value = 21, .offset = {0, 0}}, // [483]:0b1111111111111111111111110010
{.value = 23, .offset = {0, 0}}, // [484]:0b1111111111111111111111110011
{.value = -1, .offset = {1, 4}}, // [485]
{.value = -1, .offset = {1, 2}}, // [486]
{.value = 24, .offset = {0, 0}}, // [487]:0b1111111111111111111111110100
{.value = 25, .offset = {0, 0}}, // [488]:0b1111111111111111111111110101
{.value = -1, .offset = {1, 2}}, // [489]
{.value = 26, .offset = {0, 0}}, // [490]:0b1111111111111111111111110110
{.value = 27, .offset = {0, 0}}, // [491]:0b1111111111111111111111110111
{.value = -1, .offset = {1, 8}}, // [492]
{.value = -1, .offset = {1, 4}}, // [493]
{.value = -1, .offset = {1, 2}}, // [494]
{.value = 28, .offset = {0, 0}}, // [495]:0b1111111111111111111111111000
{.value = 29, .offset = {0, 0}}, // [496]:0b1111111111111111111111111001
{.value = -1, .offset = {1, 2}}, // [497]
{.value = 30, .offset = {0, 0}}, // [498]:0b1111111111111111111111111010
{.value = 31, .offset = {0, 0}}, // [499]:0b1111111111111111111111111011
{.value = -1, .offset = {1, 4}}, // [500]
{.value = -1, .offset = {1, 2}}, // [501]
{.value = 127, .offset = {0, 0}}, // [502]:0b1111111111111111111111111100
{.value = 220, .offset = {0, 0}}, // [503]:0b1111111111111111111111111101
{.value = -1, .offset = {1, 2}}, // [504]
{.value = 249, .offset = {0, 0}}, // [505]:0b1111111111111111111111111110
{.value = -1, .offset = {1, 4}}, // [506]
{.value = -1, .offset = {1, 2}}, // [507]
{.value = 10, .offset = {0, 0}}, // [508]:0b111111111111111111111111111100
{.value = 13, .offset = {0, 0}}, // [509]:0b111111111111111111111111111101
{.value = -1, .offset = {1, 2}}, // [510]
{.value = 22, .offset = {0, 0}}, // [511]:0b111111111111111111111111111110
{.value = 256, .offset = {0, 0}}, // [512]:0b111111111111111111111111111111
};
/* *****************************************************************************
Don't overwrite this
***************************************************************************** */
#endif /* H_HPACK_H */