If readChar() reads from a connection and the specified number of bytes are
not all available, it returns with what it can find. That's as documented
(further down the help page) and it's what the low-level recv() does.

However, for a blocking connection, wouldn't it be more natural to retry
until the requested data are available?

   -thomas

-- 
Thomas Lumley
Professor of Biostatistics
University of Auckland

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