haproxy/src/ncbmbuf.c
Amaury Denoyelle 25e378fa65 MINOR: ncbmbuf: add tests as standalone mode
Write some tests for ncbmbuf buf. These tests should be run each time
ncbmbuf implementation is adjusted. Use the following command :

$ gcc -g -DSTANDALONE -I./include -o ncbmbuf src/ncbmbuf.c && ./ncbmbuf

As the previous patch, this commit must be backported prior to the fix
to come on QUIC CRYPTO frames parsing.
2025-10-22 15:04:24 +02:00

609 lines
16 KiB
C

#include <haproxy/ncbmbuf.h>
#include <string.h>
#ifdef STANDALONE
#include <stdio.h>
#endif /* STANDALONE */
#ifdef DEBUG_STRICT
# include <haproxy/bug.h>
#else
# include <stdio.h>
# include <stdlib.h>
# undef BUG_ON
# define BUG_ON(x) if (x) { fprintf(stderr, "CRASH ON %s:%d\n", __func__, __LINE__); abort(); }
# undef BUG_ON_HOT
# define BUG_ON_HOT(x) if (x) { fprintf(stderr, "CRASH ON %s:%d\n", __func__, __LINE__); abort(); }
#endif /* DEBUG_STRICT */
/* ******** internal API ******** */
static char *ncbmb_peek(const struct ncbmbuf *buf, ncb_sz_t off)
{
char *ptr = ncbmb_head(buf) + off;
if (ptr >= buf->area + buf->size)
ptr -= buf->size;
return ptr;
}
static void ncbmb_set_bitmap(struct ncbmbuf *buf, ncb_sz_t off, ncb_sz_t len)
{
const ncb_sz_t sz = ncbmb_size(buf);
ncb_sz_t off_abs;
unsigned char mod;
unsigned char *b;
off_abs = off < sz ? off : off - sz;
b = buf->bitmap + (off_abs / 8);
mod = off_abs % 8;
if (mod) {
/* adjust first bitmap byte bit by bit if not aligned on 8 */
unsigned char to_copy = len < 8 - mod ? len : 8 - mod;
*b |= (unsigned char)(0xff << (8 - to_copy)) >> mod;
len -= to_copy;
++b;
}
if (len) {
size_t to_copy = len / 8;
/* bulk set bitmap as many as possible */
if (to_copy) {
memset(b, 0xff, to_copy);
len -= 8 * to_copy;
b += to_copy;
}
if (len) {
/* adjust last bitmap byte shifted by remaining len */
*b |= 0xff << (8 - len);
}
}
}
/* Type representing a bitmap byte. */
struct itbmap {
unsigned char *b;
ncb_sz_t off; /* offset relative to buf head */
unsigned char mask; /* usable bits depending on <off> and buf data storage */
unsigned char bits; /* count of bits set in <mask> */
};
/* Returns true if all bits masked in <it> are set. */
static int itbmap_is_full(const struct itbmap *it)
{
if (!it->b)
return 0;
return (*it->b & it->mask) == it->mask;
}
static void itbmap_load(struct itbmap *it, ncb_sz_t off,
const struct ncbmbuf *buf)
{
const ncb_sz_t sz = ncbmb_size(buf);
ncb_sz_t off_abs;
ncb_sz_t off_bmap;
off_abs = buf->head + off;
if (off_abs >= sz)
off_abs -= sz;
off_bmap = off_abs / 8;
BUG_ON_HOT(off_bmap >= buf->size_bm);
it->b = buf->bitmap + off_bmap;
it->off = off;
it->mask = 0xff;
it->bits = 8;
/* Adjust mask for last bitmap byte. */
if (off_bmap == buf->size_bm - 1 && (sz % 8)) {
it->mask <<= 8 - (sz % 8);
it->bits -= 8 - (sz % 8);
}
/* Adjust mask if iterator starts unaligned. */
if (off_abs % 8) {
it->mask &= (0xff >> (off_abs % 8));
it->bits -= off_abs % 8;
}
/* Adjust mask if iterator ends unaligned. */
if (it->off + it->bits > sz) {
it->mask &= (0xff << (it->off + it->bits - sz));
it->bits -= it->off + it->bits - sz;
}
}
/* Returns an iterator on the bitmap byte corresponding to <off> offset
* relative to <buf> head.
*/
static struct itbmap itbmap_get(const struct ncbmbuf *buf, ncb_sz_t off)
{
struct itbmap it;
BUG_ON(off >= ncbmb_size(buf));
itbmap_load(&it, off, buf);
return it;
}
/* Returns the next bitmap byte relative to <prev> iterator. */
static struct itbmap itbmap_next(const struct ncbmbuf *buf,
const struct itbmap *prev)
{
const ncb_sz_t off_next = prev->off + prev->bits;
struct itbmap next;
BUG_ON_HOT(off_next > ncbmb_size(buf));
if (off_next == ncbmb_size(buf)) {
next.b = NULL;
next.off = off_next;
}
else {
itbmap_load(&next, prev->off + prev->bits, buf);
}
return next;
}
/* ******** bit set/unset utilities ******** */
static void bit_unset(unsigned char *value, char i)
{
*value &= ~(1 << (8 - i));
}
/* ******** public API ******** */
/* Initialize or reset <buf> by clearing all data. Its size is untouched.
* Buffer is positioned to <head> offset. Use 0 to realign it. <buf> must not
* be NCBUF_NULL.
*/
void ncbmb_init(struct ncbmbuf *buf, ncb_sz_t head)
{
BUG_ON_HOT(ncbmb_is_null(buf));
BUG_ON_HOT(head >= buf->size);
buf->head = head;
memset(buf->bitmap, 0, buf->size_bm);
}
/* Construct a ncbmbuf with all its parameters. */
struct ncbmbuf ncbmb_make(char *area, ncb_sz_t size, ncb_sz_t head)
{
struct ncbmbuf buf;
ncb_sz_t size_bm;
size_bm = (size + 8) / 9;
buf.area = area;
buf.bitmap = (unsigned char *)area + size - size_bm;
buf.size = size - size_bm;
buf.size_bm = size_bm;
buf.head = head;
memset(area, 0, size);
return buf;
}
ncb_sz_t ncbmb_total_data(const struct ncbmbuf *buf)
{
/* TODO */
return 0;
}
/* Returns true if there is no data anywhere in <buf>. */
int ncbmb_is_empty(const struct ncbmbuf *buf)
{
size_t i = 0;
if (ncbmb_is_null(buf))
return 1;
for (i = 0; i < buf->size_bm; ++i) {
if (buf->bitmap[i])
return 0;
}
return 1;
}
int ncbmb_is_full(const struct ncbmbuf *buf)
{
/* TODO */
return 0;
}
int ncbmb_is_fragmented(const struct ncbmbuf *buf)
{
/* TODO */
return 0;
}
/* Returns the number of bytes of data available in <buf> starting at offset
* <off> until the next gap or the buffer end. The counted data may wrapped if
* the buffer storage is not aligned.
*/
ncb_sz_t ncbmb_data(const struct ncbmbuf *buf, ncb_sz_t off)
{
struct itbmap it = itbmap_get(buf, off);
unsigned char value;
ncb_sz_t count = 0;
while (itbmap_is_full(&it)) {
count += it.bits;
it = itbmap_next(buf, &it);
}
if (it.b) {
value = *it.b & it.mask;
while (it.mask && !(it.mask & 0x80)) {
it.mask <<= 1;
value <<= 1;
}
while (it.mask && (it.mask & 0x80) && (value & 0x80)) {
it.mask <<= 1;
value <<= 1;
++count;
}
}
return count;
}
/* Add a new block at <data> of size <len> in <buf> at offset <off>. Note that
* currently only NCB_ADD_OVERWRT mode is supported.
*
* Always returns NCB_RET_OK as this operation cannot fail.
*/
enum ncb_ret ncbmb_add(struct ncbmbuf *buf, ncb_sz_t off,
const char *data, ncb_sz_t len, enum ncb_add_mode mode)
{
char *ptr = ncbmb_peek(buf, off);
BUG_ON_HOT(mode != NCB_ADD_OVERWRT);
BUG_ON_HOT(off + len > buf->size);
if (ptr + len >= ncbmb_wrap(buf)) {
ncb_sz_t sz1 = ncbmb_wrap(buf) - ptr;
memcpy(ptr, data, sz1);
ncbmb_set_bitmap(buf, buf->head + off, sz1);
memcpy(ncbmb_orig(buf), data + sz1, len - sz1);
ncbmb_set_bitmap(buf, 0, len - sz1);
}
else {
memcpy(ptr, data, len);
ncbmb_set_bitmap(buf, buf->head + off, len);
}
return NCB_RET_OK;
}
/* Advance the head of <buf> to the offset <adv>. Data at the start of buffer
* will be lost while some space will be formed at the end to be able to insert
* new data.
*
* Always returns NCB_RET_OK as this operation cannot fail.
*/
enum ncb_ret ncbmb_advance(struct ncbmbuf *buf, ncb_sz_t adv)
{
struct itbmap it;
BUG_ON_HOT(adv > ncbmb_size(buf));
while (adv) {
it = itbmap_get(buf, 0);
if (it.bits <= adv) {
adv -= it.bits;
/* Reset all bits in current bitmap byte. */
*it.b &= ~it.mask;
buf->head += it.bits;
}
else {
int i = 1;
while (!(it.mask & 0x80)) {
it.mask <<= 1;
++i;
}
/* Last bitmap byte to adjust, unset each bit
* individually until new offset is reached.
*/
while (adv) {
bit_unset(it.b, i);
--adv;
++i;
++buf->head;
}
}
/* Adjust head if pointer has wrapped. */
if (buf->head >= ncbmb_size(buf)) {
BUG_ON_HOT(buf->head >= ncbmb_size(buf) * 2);
buf->head -= ncbmb_size(buf);
}
}
return NCB_RET_OK;
}
#ifdef STANDALONE
static void ncbmbuf_print_buf(struct ncbmbuf *b, int line)
{
ncb_sz_t data;
int i;
fprintf(stderr, "[%03d] ", line);
for (i = 0; i < b->size; ++i) {
if (i && !(i % 8)) fprintf(stderr, " ");
else if (i && !(i % 4)) fprintf(stderr, ".");
fprintf(stderr, "%02x", (unsigned char)b->area[i]);
}
fprintf(stderr, " [");
for (i = 0; i < b->size_bm; ++i)
fprintf(stderr, "%02x", (unsigned char)b->bitmap[i]);
fprintf(stderr, "]\n");
}
#define NCBMB_DATA_EQ(buf, off, data) \
BUG_ON(ncbmb_data((buf), (off)) != (data))
void test_ncbmb(void)
{
char *area = calloc(16384, 1);
char *data = calloc(16384, 1);
struct ncbmbuf buf;
memset(data, 0x11, 16384);
/* 7 bytes data // 1 byte bitmap (0xfe) */
buf = ncbmb_make(area, 8, 0);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 0, 0);
ncbmb_add(&buf, 1, data, 3, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 1, 3);
ncbmb_advance(&buf, 2);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 0, 2);
ncbmb_advance(&buf, 7);
ncbmb_add(&buf, 0, data, 7, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 0, 7);
/* 7 bytes data // 1 byte bitmap (0xfe) */
buf = ncbmb_make(area, 8, 0);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 0, 0);
ncbmb_add(&buf, 0, data, 2, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 0, 2);
ncbmb_add(&buf, 4, data, 2, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__);
NCBMB_DATA_EQ(&buf, 0, 2); NCBMB_DATA_EQ(&buf, 4, 2);
ncbmb_add(&buf, 2, data, 2, NCB_ADD_OVERWRT);
ncbmb_add(&buf, 6, data, 1, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 0, 7);
fprintf(stderr, "\n");
/* 8 bytes data // 1 byte bitmap (no unused) */
buf = ncbmb_make(area, 9, 4); ncbmbuf_print_buf(&buf, __LINE__);
ncbmb_add(&buf, 1, data, 6, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 1, 6);
ncbmb_add(&buf, 7, data, 1, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 1, 7);
fprintf(stderr, "\n");
/* 8 bytes data // 2 bytes bitmap (0x00) */
buf = ncbmb_make(area, 10, 0);
ncbmbuf_print_buf(&buf, __LINE__);
ncbmb_add(&buf, 0, data, 5, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 0, 5);
ncbmb_add(&buf, 7, data, 1, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 7, 1);
ncbmb_add(&buf, 5, data, 3, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 0, 8);
fprintf(stderr, "\n");
/* 26 bytes data // 4 bytes bitmap (0xc0) */
buf = ncbmb_make(area, 30, 15); ncbmbuf_print_buf(&buf, __LINE__);
ncbmb_add(&buf, 0, data, 12, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 0, 12);
ncbmb_add(&buf, 19, data, 1, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 19, 1);
ncbmb_add(&buf, 20, data, 6, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__); NCBMB_DATA_EQ(&buf, 19, 7);
ncbmb_add(&buf, 12, data, 10, NCB_ADD_OVERWRT);
ncbmbuf_print_buf(&buf, __LINE__);
NCBMB_DATA_EQ(&buf, 0, 26); NCBMB_DATA_EQ(&buf, 1, 25);
ncbmb_advance(&buf, 15);
NCBMB_DATA_EQ(&buf, 0, 11); ncbmbuf_print_buf(&buf, __LINE__);
fprintf(stderr, "\n");
free(area); free(data);
}
#define ITBMAP_CHECK(it, m, b) \
BUG_ON((it).mask != (m) || (it).bits != (b))
void test_itbmap(void)
{
struct itbmap it;
char *area = calloc(16384, 1);
struct ncbmbuf buf;
/* 7 bytes data // 1 byte bitmap (0xfe) */
buf = ncbmb_make(area, 8, 0); ncbmbuf_print_buf(&buf, __LINE__);
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0xfe, 7);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
it = itbmap_get(&buf, 1); ITBMAP_CHECK(it, 0x7e, 6);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
/* 8 bytes data // 1 byte bitmap (no unused) */
buf = ncbmb_make(area, 9, 0); ncbmbuf_print_buf(&buf, __LINE__);
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0xff, 8);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
it = itbmap_get(&buf, 6); ITBMAP_CHECK(it, 0x03, 2);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
it = itbmap_get(&buf, 7); ITBMAP_CHECK(it, 0x01, 1);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
/* 10 bytes data // 2 bytes bitmap (0xc0) */
buf = ncbmb_make(area, 12, 0); ncbmbuf_print_buf(&buf, __LINE__);
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0xff, 8);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xc0, 2);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
buf.head = 3;
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0x1f, 5);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xc0, 2);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xe0, 3);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
buf.head = 4;
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0x0f, 4);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xc0, 2);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xf0, 4);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
buf.head = 7;
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0x01, 1);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xc0, 2);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xfe, 7);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
buf.head = 8;
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0xc0, 2);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xff, 8);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
/* 8 bytes data // 2 bytes bitmap (0x00) */
buf = ncbmb_make(area, 10, 0); ncbmbuf_print_buf(&buf, __LINE__);
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0xff, 8);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
it = itbmap_get(&buf, 4); ITBMAP_CHECK(it, 0x0f, 4);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
it = itbmap_get(&buf, 6); ITBMAP_CHECK(it, 0x03, 2);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
buf.head = 7;
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0x01, 1);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xfe, 7);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
/* 26 bytes data // 4 bytes bitmap (0xc0) */
buf = ncbmb_make(area, 30, 0); ncbmbuf_print_buf(&buf, __LINE__);
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0xff, 8);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xff, 8);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xff, 8);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xc0, 2);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
it = itbmap_get(&buf, 15); ITBMAP_CHECK(it, 0x01, 1);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xff, 8);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xc0, 2);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
buf.head = 15;
it = itbmap_get(&buf, 0); ITBMAP_CHECK(it, 0x01, 1);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xff, 8);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xc0, 2);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xff, 8);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xfe, 7);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
it = itbmap_get(&buf, 15); ITBMAP_CHECK(it, 0x0f, 4);
it = itbmap_next(&buf, &it); ITBMAP_CHECK(it, 0xfe, 7);
it = itbmap_next(&buf, &it); BUG_ON(it.b);
free(area);
}
/* Real example of QUIC CRYPTO frames received from ngtcp2 client. */
void test_ngtcp2_crypto(void)
{
char *area = calloc(16384, 1);
char *data = calloc(16384, 1);
struct ncbmbuf buf;
memset(data, 0x11, 16384);
buf = ncbmb_make(area, 16384, 0);
ncbmb_add(&buf, 371, data, 14, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 371, 14);
ncbmb_add(&buf, 430, data, 59, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 430, 59);
ncbmb_add(&buf, 607, data, 472, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 607, 472);
ncbmb_add(&buf, 489, data, 118, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 489, 590);
ncbmb_add(&buf, 66, data, 67, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 66, 67);
ncbmb_add(&buf, 385, data, 15, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 385, 15);
ncbmb_add(&buf, 135, data, 118, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 135, 118);
ncbmb_add(&buf, 0, data, 66, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 0, 133);
ncbmb_add(&buf, 400, data, 15, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 400, 15);
ncbmb_add(&buf, 253, data, 118, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 253, 162);
ncbmb_add(&buf, 415, data, 15, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 400, 679);
ncbmb_add(&buf, 133, data, 1, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 0, 134);
ncbmb_add(&buf, 134, data, 1, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 0, 1079);
ncbmb_add(&buf, 1265, data, 187, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 1265, 187);
ncbmb_add(&buf, 1218, data, 47, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 1218, 234);
ncbmb_add(&buf, 1192, data, 3, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 1192, 3);
ncbmb_add(&buf, 1177, data, 3, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 1177, 3);
ncbmb_add(&buf, 1125, data, 47, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 1125, 47);
ncbmb_add(&buf, 1172, data, 5, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 1125, 55);
ncbmb_add(&buf, 1079, data, 46, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 0, 1180);
ncbmb_add(&buf, 1195, data, 23, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 1192, 260);
ncbmb_add(&buf, 1183, data, 6, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 1183, 6);
ncbmb_add(&buf, 1180, data, 3, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 0, 1189);
ncbmb_add(&buf, 1189, data, 3, NCB_ADD_OVERWRT);
NCBMB_DATA_EQ(&buf, 0, 1452);
free(area); free(data);
}
int main(int argc, char **argv)
{
test_ncbmb();
test_itbmap();
test_ngtcp2_crypto();
return 0;
}
#endif /* STANDALONE */