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Clarify upper boundary for variable-length numerical fields

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nnposter
2020-07-17 20:56:39 +00:00
parent 9635eabb9f
commit 3421d01d2e
1 changed files with 4 additions and 4 deletions
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8
nselib/mqtt.lua
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@@ -797,9 +797,9 @@ end
-- @param num The value of the field. -- @param num The value of the field.
-- @return A variable-length field. -- @return A variable-length field.
MQTT.length_build = function(num) MQTT.length_build = function(num)
-- This field represents a limited range of integers. -- This field represents a limited range of integers (0 through 128^4-1)
assert(num >= 0) assert(num >= 0)
assert(num <= 268435455) assert(num < 0x10000000)
local field = {} local field = {}
repeat repeat
@@ -854,9 +854,9 @@ MQTT.length_parse = function(buf, pos)
offset = offset + 1 offset = offset + 1
until (byte & 0x80) == 0 until (byte & 0x80) == 0
-- This field represents a limited range of integers. -- This field represents a limited range of integers (0 through 128^4-1)
assert(num >= 0) assert(num >= 0)
assert(num <= 268435455) assert(num < 0x10000000)
return pos, num return pos, num
end end