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how will recvfrom act? (UDP)

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lets say i send packet 32 bytes long, but i tell recvfrom function to read 64 bytes... will it recieve only 32 bytes - send packet size or function will wait for another packet and give me that 64 bytes? in other words: does recvfrom read always one packet?

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This doesn''t really depend on the function you use, but on the type of socket you use. Since recvfrom() really only makes sense with UDP (packet-oriented) sockets, you''ll get exactly one packet back. If that packet is 32 bytes long, and your receive buffer is 64 bytes, you''ll get 32 bytes back.

This is really, really a matter of what kind of socket you''re using. In a packet-oriented situations, you get back packets, and that''s it.


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