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Update ncat scripts: remove bit32 usage, declare locals

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This commit is contained in:
dmiller
2022-06-29 21:14:53 +00:00
parent 07bc658c4a
commit 6e392b01a9
1 changed files with 14 additions and 14 deletions
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28
ncat/scripts/httpd.lua
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@@ -106,9 +106,9 @@ function get_next_char_len(p)
--2-byte, 11-bit sequence?
if c0 < t3 then
local l1 = bit32.lshift(bit32.band(c0,mask2),6)
local l2 = bit32.band(c1,maskx)
local r = bit32.bor(l1, l2)
local l1 = (c0 & mask2) << 6
local l2 = c1 & maskx
local r = l1 | l2
if r <= char1_max then
return nil
end
@@ -126,10 +126,10 @@ function get_next_char_len(p)
--3-byte, 16-bit sequence?
if c0 < t4 then
local l1 = bit32.lshift(bit32.band(c0, mask3), 12)
local l2 = bit32.lshift(bit32.band(c1, maskx), 6)
local l3 = bit32.band(c2, maskx)
local r = bit32.bor(l1, l2, l3)
local l1 = (c0 & mask3) << 12
local l2 = (c1 & maskx) << 6
local l3 = c2 & maskx
local r = l1 | l2 | l3
if r <= char2_max then
return nil
end
@@ -150,11 +150,11 @@ function get_next_char_len(p)
--4-byte, 21-bit sequence?
if c0 < t5 then
local l1 = bit32.lshift(bit32.band(c0, mask4),18)
local l2 = bit32.lshift(bit32.band(c1, maskx), 12)
local l3 = bit32.lshift(bit32.band(c2, maskx), 6)
local l4 = bit32.band(c3, maskx)
local r = bit32.bor(l1,l2,l3,l4)
local l1 = (c0 & mask4) << 18
local l2 = (c1 & maskx) << 12
local l3 = (c2 & maskx) << 6
local l4 = c3 & maskx
local r = l1 | l2 | l3 | l4
if r <= char3_max or max_char < r then
return nil
end
@@ -221,7 +221,7 @@ function is_path_valid(resource)
end
--if it starts with a dot or a slash or a backslash, forbid any acccess to it.
first_char = resource:sub(1, 1)
local first_char = resource:sub(1, 1)
if first_char == "." then
return false
@@ -288,7 +288,7 @@ function make_response(params)
--run the function and print its contents, until we hit nil.
local f = params["data"]
while true do
ret = f()
local ret = f()
if ret == nil then
debug("Buffered output finished.")
break