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core	-	Open
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limit	-	Open
lrucache	-	Open
template	-	Open
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websocket	-	Open
aes.lua	9.62 MB	View DL Edit
cookie.lua	5.55 MB	View DL Edit
core.lua	710 B	View DL Edit
http.lua	28.99 MB	View DL Edit
http_headers.lua	1.12 MB	View DL Edit
lock.lua	4.58 MB	View DL Edit
lrucache.lua	6.95 MB	View DL Edit
md5.lua	1.19 MB	View DL Edit
random.lua	672 B	View DL Edit
sha.lua	236 B	View DL Edit
sha1.lua	1.16 MB	View DL Edit
sha224.lua	1.02 MB	View DL Edit
sha256.lua	1.19 MB	View DL Edit
sha384.lua	1.02 MB	View DL Edit
sha512.lua	1.33 MB	View DL Edit
shell.lua	4.88 MB	View DL Edit
signal.lua	3.12 MB	View DL Edit
string.lua	887 B	View DL Edit
template.lua	22.69 MB	View DL Edit

Edit file: /opt/imunify360-webshield/lualib/resty/signal.lua

local _M = {
    version = 0.04
}

local ffi = require "ffi"
local base = require "resty.core.base"

local C = ffi.C
local ffi_str = ffi.string
local tonumber = tonumber
local assert = assert
local errno = ffi.errno
local type = type
local new_tab = base.new_tab
local error = error
local string_format = string.format

local load_shared_lib
do
    local string_gmatch = string.gmatch
    local string_match = string.match
    local io_open = io.open
    local io_close = io.close

local cpath = package.cpath

function load_shared_lib(so_name)
        local tried_paths = new_tab(32, 0)
        local i = 1

for k, _ in string_gmatch(cpath, "[^;]+") do
            if k == "?.so" then
                k = "./"
            end

local fpath = string_match(k, "(.*/)")
            fpath = fpath .. so_name
            -- Don't get me wrong, the only way to know if a file exist is
            -- trying to open it.
            local f = io_open(fpath)
            if f ~= nil then
                io_close(f)
                return ffi.load(fpath)
            end

tried_paths[i] = fpath
            i = i + 1
        end

return nil, tried_paths
    end  -- function
end  -- do

local resty_signal, tried_paths = load_shared_lib("librestysignal.so")
if not resty_signal then
    error("could not load librestysignal.so from the following paths:\n" ..
          table.concat(tried_paths, "\n"), 2)
end

ffi.cdef[[
int resty_signal_signum(int num);
]]

if not pcall(function () return C.kill end) then
    ffi.cdef("int kill(int32_t pid, int sig);")
end

if not pcall(function () return C.strerror end) then
    ffi.cdef("char *strerror(int errnum);")
end

-- Below is just the ID numbers for each POSIX signal. We map these signal IDs
-- to system-specific signal numbers on the C land (via librestysignal.so).
local signals = {
    NONE = 0,
    HUP = 1,
    INT = 2,
    QUIT = 3,
    ILL = 4,
    TRAP = 5,
    ABRT = 6,
    BUS = 7,
    FPE = 8,
    KILL = 9,
    USR1 = 10,
    SEGV = 11,
    USR2 = 12,
    PIPE = 13,
    ALRM = 14,
    TERM = 15,
    CHLD = 17,
    CONT = 18,
    STOP = 19,
    TSTP = 20,
    TTIN = 21,
    TTOU = 22,
    URG = 23,
    XCPU = 24,
    XFSZ = 25,
    VTALRM = 26,
    PROF = 27,
    WINCH = 28,
    IO = 29,
    PWR = 30,
    EMT = 31,
    SYS = 32,
    INFO = 33
}

local function signum(name)
    local sig_num
    if type(name) == "number" then
        sig_num = name
    else
        local id = signals[name]
        if not id then
            return nil, "unknown signal name"
        end

sig_num = tonumber(resty_signal.resty_signal_signum(id))
        if sig_num < 0 then
            error(
                string_format("missing C def for signal %s = %d", name, id),
                2
            )
        end
    end
    return sig_num
end

function _M.kill(pid, sig)
    assert(sig)

local sig_num, err = signum(sig)
    if err then
        return nil, err
    end

local rc = tonumber(C.kill(assert(pid), sig_num))
    if rc == 0 then
        return true
    end

local err = ffi_str(C.strerror(errno()))
    return nil, err
end

_M.signum = signum

return _M

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