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Merge pull request #596 from evo-lua/369-libcurl-ffi-integration
Set up new FFI bindings for libcurl
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| local ffi = require("ffi") | ||
| local ffi_string = ffi.string | ||
|
|
||
| local curl = { | ||
| MAX_CSTRING_LIST_SIZE = 256, | ||
| } | ||
|
|
||
| curl.cdefs = [[ | ||
| typedef enum CURLversion { | ||
| CURLVERSION_FIRST, /* 7.10 */ | ||
| CURLVERSION_SECOND, /* 7.11.1 */ | ||
| CURLVERSION_THIRD, /* 7.12.0 */ | ||
| CURLVERSION_FOURTH, /* 7.16.1 */ | ||
| CURLVERSION_FIFTH, /* 7.57.0 */ | ||
| CURLVERSION_SIXTH, /* 7.66.0 */ | ||
| CURLVERSION_SEVENTH, /* 7.70.0 */ | ||
| CURLVERSION_EIGHTH, /* 7.72.0 */ | ||
| CURLVERSION_NINTH, /* 7.75.0 */ | ||
| CURLVERSION_TENTH, /* 7.77.0 */ | ||
| CURLVERSION_ELEVENTH, /* 7.87.0 */ | ||
| CURLVERSION_TWELFTH, /* 8.8.0 */ | ||
| CURLVERSION_LAST /* never actually use this */ | ||
| } CURLversion; | ||
| struct curl_version_info_data { | ||
| CURLversion age; /* age of the returned struct */ | ||
| const char* version; /* LIBCURL_VERSION */ | ||
| unsigned int version_num; /* LIBCURL_VERSION_NUM */ | ||
| const char* host; /* OS/host/cpu/machine when configured */ | ||
| int features; /* bitmask, see defines below */ | ||
| const char* ssl_version; /* human readable string */ | ||
| long ssl_version_num; /* not used anymore, always 0 */ | ||
| const char* libz_version; /* human readable string */ | ||
| /* protocols is terminated by an entry with a NULL protoname */ | ||
| const char* const* protocols; | ||
| /* The fields below this were added in CURLVERSION_SECOND */ | ||
| const char* ares; | ||
| int ares_num; | ||
| /* This field was added in CURLVERSION_THIRD */ | ||
| const char* libidn; | ||
| /* These field were added in CURLVERSION_FOURTH */ | ||
| /* Same as '_libiconv_version' if built with HAVE_ICONV */ | ||
| int iconv_ver_num; | ||
| const char* libssh_version; /* human readable string */ | ||
| /* These fields were added in CURLVERSION_FIFTH */ | ||
| unsigned int brotli_ver_num; /* Numeric Brotli version | ||
| (MAJOR << 24) | (MINOR << 12) | PATCH */ | ||
| const char* brotli_version; /* human readable string. */ | ||
| /* These fields were added in CURLVERSION_SIXTH */ | ||
| unsigned int nghttp2_ver_num; /* Numeric nghttp2 version | ||
| (MAJOR << 16) | (MINOR << 8) | PATCH */ | ||
| const char* nghttp2_version; /* human readable string. */ | ||
| const char* quic_version; /* human readable quic (+ HTTP/3) library + | ||
| version or NULL */ | ||
| /* These fields were added in CURLVERSION_SEVENTH */ | ||
| const char* cainfo; /* the built-in default CURLOPT_CAINFO, might | ||
| be NULL */ | ||
| const char* capath; /* the built-in default CURLOPT_CAPATH, might | ||
| be NULL */ | ||
| /* These fields were added in CURLVERSION_EIGHTH */ | ||
| unsigned int zstd_ver_num; /* Numeric Zstd version | ||
| (MAJOR << 24) | (MINOR << 12) | PATCH */ | ||
| const char* zstd_version; /* human readable string. */ | ||
| /* These fields were added in CURLVERSION_NINTH */ | ||
| const char* hyper_version; /* human readable string. */ | ||
| /* These fields were added in CURLVERSION_TENTH */ | ||
| const char* gsasl_version; /* human readable string. */ | ||
| /* These fields were added in CURLVERSION_ELEVENTH */ | ||
| /* feature_names is terminated by an entry with a NULL feature name */ | ||
| const char* const* feature_names; | ||
| /* These fields were added in CURLVERSION_TWELFTH */ | ||
| const char* rtmp_version; /* human readable string. */ | ||
| }; | ||
| typedef struct curl_version_info_data curl_version_info_data; | ||
| struct static_curl_exports_table { | ||
| // curl.h | ||
| CURLversion CURLVERSION_NOW; | ||
| curl_version_info_data* (*curl_version_info)(CURLversion); | ||
| }; | ||
| ]] | ||
|
|
||
| function curl.initialize() | ||
| ffi.cdef(curl.cdefs) | ||
| end | ||
|
|
||
| function curl.unpack(cstrings) | ||
| local entries = {} | ||
| local index = 0 | ||
| while index < curl.MAX_CSTRING_LIST_SIZE do | ||
| local cstring = cstrings[index] | ||
| if cstring == ffi.NULL then | ||
| break | ||
| end | ||
|
|
||
| local key = ffi_string(cstring) | ||
| entries[key] = true | ||
|
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| index = index + 1 | ||
| end | ||
|
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||
| return entries | ||
| end | ||
|
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||
| local function cstring_unwrap(cstring) | ||
| if cstring == ffi.NULL then | ||
| return tostring(ffi.NULL) | ||
| end | ||
|
|
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| return ffi_string(cstring) | ||
| end | ||
|
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||
| function curl.version_info(age) | ||
| age = age or curl.bindings.CURLVERSION_NOW | ||
| local versionInfo = curl.bindings.curl_version_info(age) | ||
|
|
||
| local infoTable = { | ||
| age = tonumber(versionInfo.age), | ||
| version = cstring_unwrap(versionInfo.version), | ||
| version_num = tonumber(versionInfo.version_num), | ||
| host = cstring_unwrap(versionInfo.host), | ||
| features = tonumber(versionInfo.features), -- TBD tostring? | ||
| ssl_version = cstring_unwrap(versionInfo.ssl_version), | ||
| libz_version = cstring_unwrap(versionInfo.libz_version), | ||
| protocols = curl.unpack(versionInfo.protocols), | ||
| feature_names = curl.unpack(versionInfo.feature_names), | ||
| -- These version-dependent fields are assumed to always be present with static libcurl | ||
| ares = cstring_unwrap(versionInfo.ares), | ||
| ares_num = tonumber(versionInfo.ares_num), | ||
| libidn = cstring_unwrap(versionInfo.libidn), | ||
| iconv_ver_num = tonumber(versionInfo.iconv_ver_num), | ||
| libssh_version = cstring_unwrap(versionInfo.libssh_version), | ||
| brotli_ver_num = tonumber(versionInfo.brotli_ver_num), | ||
| brotli_version = cstring_unwrap(versionInfo.brotli_version), | ||
| nghttp2_ver_num = tonumber(versionInfo.nghttp2_ver_num), | ||
| nghttp2_version = cstring_unwrap(versionInfo.nghttp2_version), | ||
| quic_version = cstring_unwrap(versionInfo.quic_version), | ||
| cainfo = cstring_unwrap(versionInfo.cainfo), | ||
| capath = cstring_unwrap(versionInfo.capath), | ||
| zstd_ver_num = tonumber(versionInfo.zstd_ver_num), | ||
| zstd_version = cstring_unwrap(versionInfo.zstd_version), | ||
| hyper_version = cstring_unwrap(versionInfo.hyper_version), | ||
| gsasl_version = cstring_unwrap(versionInfo.gsasl_version), | ||
| rtmp_version = cstring_unwrap(versionInfo.rtmp_version), | ||
| } | ||
|
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| infoTable.version = infoTable.version:gsub("%-DEV", "") | ||
|
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| return infoTable | ||
| end | ||
|
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||
| function curl.version(age) | ||
| age = age or curl.bindings.CURLVERSION_NOW | ||
| local infoTable = curl.version_info(age) | ||
| return infoTable.version, infoTable.version_num, tonumber(curl.bindings.CURLVERSION_NOW) | ||
| end | ||
|
|
||
| return curl |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| typedef enum CURLversion { | ||
| CURLVERSION_FIRST, /* 7.10 */ | ||
| CURLVERSION_SECOND, /* 7.11.1 */ | ||
| CURLVERSION_THIRD, /* 7.12.0 */ | ||
| CURLVERSION_FOURTH, /* 7.16.1 */ | ||
| CURLVERSION_FIFTH, /* 7.57.0 */ | ||
| CURLVERSION_SIXTH, /* 7.66.0 */ | ||
| CURLVERSION_SEVENTH, /* 7.70.0 */ | ||
| CURLVERSION_EIGHTH, /* 7.72.0 */ | ||
| CURLVERSION_NINTH, /* 7.75.0 */ | ||
| CURLVERSION_TENTH, /* 7.77.0 */ | ||
| CURLVERSION_ELEVENTH, /* 7.87.0 */ | ||
| CURLVERSION_TWELFTH, /* 8.8.0 */ | ||
| CURLVERSION_LAST /* never actually use this */ | ||
| } CURLversion; | ||
|
|
||
| struct curl_version_info_data { | ||
| CURLversion age; /* age of the returned struct */ | ||
| const char* version; /* LIBCURL_VERSION */ | ||
| unsigned int version_num; /* LIBCURL_VERSION_NUM */ | ||
| const char* host; /* OS/host/cpu/machine when configured */ | ||
| int features; /* bitmask, see defines below */ | ||
| const char* ssl_version; /* human readable string */ | ||
| long ssl_version_num; /* not used anymore, always 0 */ | ||
| const char* libz_version; /* human readable string */ | ||
| /* protocols is terminated by an entry with a NULL protoname */ | ||
| const char* const* protocols; | ||
|
|
||
| /* The fields below this were added in CURLVERSION_SECOND */ | ||
| const char* ares; | ||
| int ares_num; | ||
|
|
||
| /* This field was added in CURLVERSION_THIRD */ | ||
| const char* libidn; | ||
|
|
||
| /* These field were added in CURLVERSION_FOURTH */ | ||
|
|
||
| /* Same as '_libiconv_version' if built with HAVE_ICONV */ | ||
| int iconv_ver_num; | ||
|
|
||
| const char* libssh_version; /* human readable string */ | ||
|
|
||
| /* These fields were added in CURLVERSION_FIFTH */ | ||
| unsigned int brotli_ver_num; /* Numeric Brotli version | ||
| (MAJOR << 24) | (MINOR << 12) | PATCH */ | ||
| const char* brotli_version; /* human readable string. */ | ||
|
|
||
| /* These fields were added in CURLVERSION_SIXTH */ | ||
| unsigned int nghttp2_ver_num; /* Numeric nghttp2 version | ||
| (MAJOR << 16) | (MINOR << 8) | PATCH */ | ||
| const char* nghttp2_version; /* human readable string. */ | ||
| const char* quic_version; /* human readable quic (+ HTTP/3) library + | ||
| version or NULL */ | ||
|
|
||
| /* These fields were added in CURLVERSION_SEVENTH */ | ||
| const char* cainfo; /* the built-in default CURLOPT_CAINFO, might | ||
| be NULL */ | ||
| const char* capath; /* the built-in default CURLOPT_CAPATH, might | ||
| be NULL */ | ||
|
|
||
| /* These fields were added in CURLVERSION_EIGHTH */ | ||
| unsigned int zstd_ver_num; /* Numeric Zstd version | ||
| (MAJOR << 24) | (MINOR << 12) | PATCH */ | ||
| const char* zstd_version; /* human readable string. */ | ||
|
|
||
| /* These fields were added in CURLVERSION_NINTH */ | ||
| const char* hyper_version; /* human readable string. */ | ||
|
|
||
| /* These fields were added in CURLVERSION_TENTH */ | ||
| const char* gsasl_version; /* human readable string. */ | ||
|
|
||
| /* These fields were added in CURLVERSION_ELEVENTH */ | ||
| /* feature_names is terminated by an entry with a NULL feature name */ | ||
| const char* const* feature_names; | ||
|
|
||
| /* These fields were added in CURLVERSION_TWELFTH */ | ||
| const char* rtmp_version; /* human readable string. */ | ||
| }; | ||
| typedef struct curl_version_info_data curl_version_info_data; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| struct static_curl_exports_table { | ||
| // curl.h | ||
| CURLversion CURLVERSION_NOW; | ||
| curl_version_info_data* (*curl_version_info)(CURLversion); | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| #include "curl.h" | ||
| #include "curl_ffi.hpp" | ||
|
|
||
| namespace curl_ffi { | ||
| void* getExportsTable() { | ||
| static struct static_curl_exports_table exports = { | ||
| // curl.h | ||
| .CURLVERSION_NOW = CURLVERSION_NOW, | ||
| .curl_version_info = curl_version_info, | ||
| }; | ||
|
|
||
| return &exports; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| #pragma once | ||
|
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| #include "curl.h" | ||
| #include "curl_exports.h" | ||
|
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| namespace curl_ffi { | ||
| void* getExportsTable(); | ||
| } |
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