__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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For_More_Tools:
local ffi = require "ffi"
local C = ffi.C
local ffi_gc = ffi.gc
local ffi_new = ffi.new
local ffi_str = ffi.string
require "resty.openssl.include.bio"
local format_error = require("resty.openssl.err").format_error
local function read_wrap(f, ...)
if type(f) ~= "cdata" then -- should be explictly a function
return nil, "bio_util.read_wrap: expect a function at #1"
end
local bio_method = C.BIO_s_mem()
if bio_method == nil then
return nil, "bio_util.read_wrap: BIO_s_mem() failed"
end
local bio = C.BIO_new(bio_method)
ffi_gc(bio, C.BIO_free)
-- BIO_reset; #define BIO_CTRL_RESET 1
local code = C.BIO_ctrl(bio, 1, 0, nil)
if code ~= 1 then
return nil, "bio_util.read_wrap: BIO_ctrl() failed: " .. code
end
local code = f(bio, ...)
if code ~= 1 then
return nil, format_error(f, code)
end
local buf = ffi_new("char *[1]")
-- BIO_get_mem_data; #define BIO_CTRL_INFO 3
local length = C.BIO_ctrl(bio, 3, 0, buf)
return ffi_str(buf[0], length)
end
return {
read_wrap = read_wrap,
}