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authorGravatar Nikias Bassen2019-07-19 00:06:38 +0700
committerGravatar Nikias Bassen2019-07-19 01:11:09 +0700
commitf52584e7310ad9af414cdd22cbfad81d53417c22 (patch)
treeae4488955b67b676ca5735d622083746c339ce96 /docs
parent2332655423c1616d8e37ece7f33e98be0e218504 (diff)
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OpenSSL: Use SSL_pending() to determine if we want a select() before SSL_read()
In order to obey the timeout in idevice_connection_receive_timeout(), we are using select() via socket_check_fd(). However, the SSL bio might have buffered more bytes than actually requested upon a call to SSL_read(), so in the next call to idevice_connection_receive_timeout() a select() would not find the fd being ready to read, and make it fail with an error, after the specified timeout is reached. With the help of SSL_pending() we can now skip calling select() so that SSL_read() will directly be called again.
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