design a new web protocol

using UDP
field description [size] {example}

Requests:
Request ID [2] {1234}
Request string [] {prog+bbs}

Response:
Request ID [2] {1234}
Data type [1] {0 = plain text}
Data [max 1440] {hello world!}

it lacks a way to prevent spoofed source IPs and allow larger data sizes

>>21
There are problems when startup routines that call main could be assuming that the return value will be pushed onto the stack. If main() does not do this, then this could lead to stack corruption in the program's exit sequence, and cause it to crash. Another problem is that you are likely to return a random value to the invokation environment. Any script or process that relies on a non-zero value to imply failure will be mistaken.