bunkerweb/lib/resty/string.lua
Théophile Diot 356707d7ae Squashed 'src/deps/src/lua-resty-string/' changes from b192878f6e..7be2e1d907
7be2e1d907 bumped version to 0.16.
081d2fae41 feat: add AAD support in aes gcm
86aada55c4 change: make random.bytes cryptographically strong by default.
6f1bc21d86 tests: update nginx to 1.25.3.
e6b80ac31d tests: upgrade nginx to 1.25.1.
775576d0e5 tests: fixed test failures caused by using non-perlbrew cpanm in travis.
78e5020229 travis-ci: bumped the NGINX core to 1.21.4. (#89)
1cc2f59417 tests: Certificate of Let's Encrypt expired, travis won't update the certificate in the image of trusty. (#87)

git-subtree-dir: src/deps/src/lua-resty-string
git-subtree-split: 7be2e1d907744f965af115819cca9e6580f2e760
2024-08-08 18:58:13 +01:00

46 lines
887 B
Lua

-- Copyright (C) by Yichun Zhang (agentzh)
local ffi = require "ffi"
local ffi_new = ffi.new
local ffi_str = ffi.string
local C = ffi.C
--local setmetatable = setmetatable
--local error = error
local tonumber = tonumber
local _M = { _VERSION = '0.16' }
ffi.cdef[[
typedef unsigned char u_char;
u_char * ngx_hex_dump(u_char *dst, const u_char *src, size_t len);
intptr_t ngx_atoi(const unsigned char *line, size_t n);
]]
local str_type = ffi.typeof("uint8_t[?]")
local BUF_MAX_LEN = 1024
local hex_buf = ffi_new(str_type, BUF_MAX_LEN)
function _M.to_hex(s)
local len = #s
local buf_len = len * 2
local buf
if buf_len <= BUF_MAX_LEN then
buf = hex_buf
else
buf = ffi_new(str_type, buf_len)
end
C.ngx_hex_dump(buf, s, len)
return ffi_str(buf, buf_len)
end
function _M.atoi(s)
return tonumber(C.ngx_atoi(s, #s))
end
return _M