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You don't have a buffer overflow problem if you read it in a memory-safe way i.e. read it in chunks and realloc when you reach the size of your allocation. Wha

You don't have a buffer overflow problem if you read it in a memory-safe way i.e. read it in chunks and realloc when you reach the size of your allocation. What you will have is a potential denial-of-service attack - although this one isn't particularly great because there's zero amplification (they might as well just send garbage into your firewall)

torgoguys 12d ago
DOS in what way? Can you clarify? Thx.
LorenPechtel 12d ago
Memory allocation?? Why? Real world, you'll bump into limits based on fonts long before you'll get a buffer that's too large for the stack and worth using the memory allocator for. I can't see any reason to support more than 2^64 characters and lots of headaches from trying to beyond that. You check your buffer writes and reject the character if it's too long.