Failed to build on linux

[N0N1m3]

I'm trying to build lsquic

I tried two ways

1. As it is written in your guide
2. As shown in this example https://github.com/dtikhonov/lsquic-tutorial/blob/master/CMakeLists.txt

My test CMakeLists.txt

CMAKE_MINIMUM_REQUIRED(VERSION 3.5)
PROJECT(lsquic-tutorial C)

ADD_SUBDIRECTORY(boringssl)

INCLUDE_DIRECTORIES(boringssl/include)
INCLUDE_DIRECTORIES(lsquic/include)
INCLUDE_DIRECTORIES(lsquic/src/liblsquic)
ADD_SUBDIRECTORY(lsquic/src/liblsquic)

wsl output:

[ 99%] Building C object lsquic/src/liblsquic/CMakeFiles/lsquic.dir/lsquic_xxhash.c.o
[ 99%] Building C object lsquic/src/liblsquic/CMakeFiles/lsquic.dir/__/lshpack/lshpack.c.o
[ 99%] Building C object lsquic/src/liblsquic/CMakeFiles/lsquic.dir/lsquic_versions_to_string.c.o
/mnt/c/Users/x/buikd/lsquic/src/liblsquic/lsquic_versions_to_string.c: In function ‘lsquic_get_alt_svc_versions’:
/mnt/c/Users/x/buikd/lsquic/src/liblsquic/lsquic_versions_to_string.c:21:18: error: expected expression before ‘)’ token
   21 |     versions &= ();
      |                  ^
/mnt/c/Users/x/buikd/lsquic/src/liblsquic/lsquic_versions_to_string.c: In function ‘lsquic_get_h3_alpns’:
/mnt/c/Users/x/buikd/lsquic/src/liblsquic/lsquic_versions_to_string.c:37:18: error: expected expression before ‘)’ token
   37 |     versions &= ();
      |                  ^
make[2]: *** [lsquic/src/liblsquic/CMakeFiles/lsquic.dir/build.make:1257: lsquic/src/liblsquic/CMakeFiles/lsquic.dir/lsquic_versions_to_string.c.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:812: lsquic/src/liblsquic/CMakeFiles/lsquic.dir/all] Error 2
make: *** [Makefile:136: all] Error 2

I have latest versions of boringssl and lsquic

My perl version: v5.34.0

perl -v

This is perl 5, version 34, subversion 0 (v5.34.0) built for x86_64-linux-gnu-thread-multi
(with 60 registered patches, see perl -V for more detail)

[ChessNineeee]

The perl script src/liblsquic/gen-verstr.pl will generate the wrong code under the WSL environment. The reason is the script cannot parse the header file include/libquic.h correctly due to the crlf line ending which is caused by Windows. Thus I use a tool named dos2unix to convert header file's format to unix format, and it works. Here's the correctly generated file src/liblsquic/lsquic_versions_to_string.c:

/*
 * Auto-generated by ./gen-verstrs.pl on Wed Jun 19 14:19:42 2024
 */

#include <assert.h>
#include <string.h>

#include "lsquic.h"

struct lsquic_engine;

static const char *const versions_to_string[ 1 << N_LSQVER ] = {
    [0] = "",
    [(1<<LSQVER_043)] = "43",
    [(1<<LSQVER_046)] = "46",
    [(1<<LSQVER_043)|(1<<LSQVER_046)] = "43,46",
};


const char *
lsquic_get_alt_svc_versions (unsigned versions)
{
    /* Limit to versions in versions_to_string: */
    versions &= ((1<<LSQVER_043)|(1<<LSQVER_046));
    return versions_to_string[ versions ];
}

static const struct {
    unsigned    versions;
    const char *h3_alpns[8];
} vers_2_h3_alnps[] = {
    { 0, { NULL }},
    {(1<<LSQVER_043), { "h3-Q043", NULL }},
    {(1<<LSQVER_046), { "h3-Q046", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046), { "h3-Q043", "h3-Q046", NULL }},
    {(1<<LSQVER_050), { "h3-Q050", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050), { "h3-Q043", "h3-Q050", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050), { "h3-Q046", "h3-Q050", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050), { "h3-Q043", "h3-Q046", "h3-Q050", NULL }},
    {(1<<LSQVER_ID27), { "h3-27", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID27), { "h3-Q043", "h3-27", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID27), { "h3-Q046", "h3-27", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID27), { "h3-Q043", "h3-Q046", "h3-27", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID27), { "h3-Q050", "h3-27", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID27), { "h3-Q043", "h3-Q050", "h3-27", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27), { "h3-Q046", "h3-Q050", "h3-27", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-27", NULL }},
    {(1<<LSQVER_ID29), { "h3-29", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID29), { "h3-Q043", "h3-29", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID29), { "h3-Q046", "h3-29", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID29), { "h3-Q043", "h3-Q046", "h3-29", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID29), { "h3-Q050", "h3-29", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID29), { "h3-Q043", "h3-Q050", "h3-29", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID29), { "h3-Q046", "h3-Q050", "h3-29", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID29), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-29", NULL }},
    {(1<<LSQVER_ID27)|(1<<LSQVER_ID29), { "h3-27", "h3-29", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29), { "h3-Q043", "h3-27", "h3-29", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29), { "h3-Q046", "h3-27", "h3-29", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29), { "h3-Q043", "h3-Q046", "h3-27", "h3-29", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29), { "h3-Q050", "h3-27", "h3-29", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29), { "h3-Q043", "h3-Q050", "h3-27", "h3-29", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29), { "h3-Q046", "h3-Q050", "h3-27", "h3-29", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-27", "h3-29", NULL }},
    {(1<<LSQVER_I001), { "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_I001), { "h3-Q043", "h3", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_I001), { "h3-Q046", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q046", "h3", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_I001), { "h3-Q050", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q050", "h3", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_I001), { "h3-Q046", "h3-Q050", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q046", "h3-Q050", "h3", NULL }},
    {(1<<LSQVER_ID27)|(1<<LSQVER_I001), { "h3-27", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID27)|(1<<LSQVER_I001), { "h3-Q043", "h3-27", "h3", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_I001), { "h3-Q046", "h3-27", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q046", "h3-27", "h3", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I001), { "h3-Q050", "h3-27", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q050", "h3-27", "h3", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I001), { "h3-Q046", "h3-Q050", "h3-27", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-27", "h3", NULL }},
    {(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-29", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q043", "h3-29", "h3", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q046", "h3-29", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q046", "h3-29", "h3", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q050", "h3-29", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q050", "h3-29", "h3", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q046", "h3-Q050", "h3-29", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-29", "h3", NULL }},
    {(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-27", "h3-29", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q043", "h3-27", "h3-29", "h3", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q046", "h3-27", "h3-29", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q046", "h3-27", "h3-29", "h3", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q050", "h3-27", "h3-29", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q050", "h3-27", "h3-29", "h3", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q046", "h3-Q050", "h3-27", "h3-29", "h3", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-27", "h3-29", "h3", NULL }},
    {(1<<LSQVER_I002), { "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_I002), { "h3-Q043", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_I002), { "h3-Q046", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_I002), { "h3-Q050", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q050", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_I002), { "h3-Q046", "h3-Q050", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-Q050", "", NULL }},
    {(1<<LSQVER_ID27)|(1<<LSQVER_I002), { "h3-27", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID27)|(1<<LSQVER_I002), { "h3-Q043", "h3-27", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_I002), { "h3-Q046", "h3-27", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-27", "", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I002), { "h3-Q050", "h3-27", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q050", "h3-27", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I002), { "h3-Q046", "h3-Q050", "h3-27", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-27", "", NULL }},
    {(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-29", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q043", "h3-29", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q046", "h3-29", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-29", "", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q050", "h3-29", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q050", "h3-29", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q046", "h3-Q050", "h3-29", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-29", "", NULL }},
    {(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-27", "h3-29", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q043", "h3-27", "h3-29", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q046", "h3-27", "h3-29", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-27", "h3-29", "", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q050", "h3-27", "h3-29", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q050", "h3-27", "h3-29", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q046", "h3-Q050", "h3-27", "h3-29", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-27", "h3-29", "", NULL }},
    {(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q046", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3", "", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q050", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q050", "h3", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q046", "h3-Q050", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-Q050", "h3", "", NULL }},
    {(1<<LSQVER_ID27)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-27", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID27)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-27", "h3", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q046", "h3-27", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-27", "h3", "", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q050", "h3-27", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q050", "h3-27", "h3", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q046", "h3-Q050", "h3-27", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-27", "h3", "", NULL }},
    {(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q046", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q050", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q050", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q046", "h3-Q050", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-27", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-27", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q046", "h3-27", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-27", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q050", "h3-27", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q050", "h3-27", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q046", "h3-Q050", "h3-27", "h3-29", "h3", "", NULL }},
    {(1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002), { "h3-Q043", "h3-Q046", "h3-Q050", "h3-27", "h3-29", "h3", "", NULL }},
};

const char *const *
lsquic_get_h3_alpns (unsigned versions)
{
    unsigned i;

    versions &= ((1<<LSQVER_043)|(1<<LSQVER_046)|(1<<LSQVER_050)|(1<<LSQVER_ID27)|(1<<LSQVER_ID29)|(1<<LSQVER_I001)|(1<<LSQVER_I002));

    for (i = 0; i < sizeof(vers_2_h3_alnps) / sizeof(vers_2_h3_alnps[0]); ++i)
        if (versions == vers_2_h3_alnps[i].versions)
            return vers_2_h3_alnps[i].h3_alpns;

    assert(0);
    return vers_2_h3_alnps[0].h3_alpns;
}

enum lsquic_version
lsquic_alpn2ver (const char *alpn, size_t len)
{
    static const struct el {
        size_t len;
        char alpn[10];
        enum lsquic_version version;
    } map[] = {
        {sizeof("h3-Q043")-1,"h3-Q043", LSQVER_043},
        {sizeof("h3-Q046")-1,"h3-Q046", LSQVER_046},
        {sizeof("h3-Q050")-1,"h3-Q050", LSQVER_050},
        {sizeof("h3-27")-1,"h3-27", LSQVER_ID27},
        {sizeof("h3-29")-1,"h3-29", LSQVER_ID29},
        {sizeof("h3")-1,"h3", LSQVER_I001},
    };
    const struct el *el;

    if (alpn)
        for (el = map; el < map + sizeof(map) / sizeof(map[0]); ++el)
            if (el->len == len && 0 == strncmp(el->alpn, alpn, len))
                return el->version;

    return -1;
}

[dtikhonov]

@N0N1m3, @ChessNineeee thank you for the bug report.