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implement recv_buffer size limit and input validation

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* Implement recv_buffer size limit and input validation

* Add readLengthPrefixedData helper and refactor some read flows

* Change error to be more accurate

* Add newline to error message

* fix long chat messages kicking clients

* style nitpicks

---------

Co-authored-by: p2r3 <p2r3@p2r3.com>
Co-authored-by: p2r3 <41925384+p2r3@users.noreply.github.com>
This commit is contained in:
Tyler Zars
2025-09-18 19:00:02 -04:00
committed by GitHub
parent b23e19ecd4
commit 3bde692976
5 changed files with 47 additions and 18 deletions
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3
include/globals.h
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@@ -102,6 +102,9 @@
// clients from Keep Alive packets.
#define NETWORK_TIMEOUT_TIME 15000000
// Size of the receive buffer for incoming string data
#define MAX_RECV_BUF_LEN 256
// If defined, sends the server brand to clients. Doesn't do much, but will
// show up in the top-left of the F3/debug menu, in the Minecraft client.
// You can change the brand string in the "brand" variable in src/globals.c