`atoi()` maximum value is `LONG_MAX` which is smaller than `SIZE_MAX`.
This cause any Content-Length > LONG_MAX to be represented in an
erroneous value. This will also happen to any invalid Content-Length
header.
This change uses strtoul() for the extended range (should be the same as
size_t range), and combined with proper error checking to determine
whether the received Content-Length is a valid and/or representable
value. Returns 0 if the data is invalid or can not be represented.
Some shortcomings about the current implementation are also
noted accordingly. They will be solved in later patches.
Change-Id: If28c4c3b8430ed83dd0f600030ec8949cf7e0051
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2927
Reviewed-by: waddlesplash <[email protected]>
Leorize
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