> On Feb 4, 2022, at 10:58 PM, g.jaegy <g.ja...@imagine3d.fr> wrote:
>
> Upstream accidentally stepped on trying to use C99 VLAs;
> fOutBuf->curPacketSize() is not a constant.
>
> // Hack: Because the MKI + authentication tag at the end of the packet
> would
> // overwrite any following (still to be sent) frame data, we can't
> encrypt/tag
> // the packet in place. Instead, we have to make a copy (on the stack)
> of
> // the packet, before encrypting/tagging/sending it:
> u_int8_t packet[fOutBuf->curPacketSize() + SRTP_MKI_LENGTH +
> SRTP_AUTH_TAG_LENGTH];
> memcpy(packet, fOutBuf->packet(), fOutBuf->curPacketSize());
> unsigned newPacketSize;
It seems that you’re using a C++ compiler that doesn’t handle variable-sized
data being allocated on the stack. If you can’t upgrade your compiler, then
you will be able to compile it by adding
-DNO_OPENSSL=1
to your compile flags. (Of course, if you do this, then you won’t be able to
handle connections over TLS, or SRTP.)
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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