In src/session.c, libssh2_session_startup() sets the session socket to
blocking mode, calls libssh2_banner_send() then calls
libssh2_banner_receive().
If the connection is dropped by the client between those two calls,
libssh2_banner_receive() hard loops doing recv()'s that are returning 0.
The culprit seems to be the "if (ret <= 0) continue;" code. Placing the
continue in the loop above (which is "if (ret < 0 )") and adding code to
check for zero seems to do the trick:
} else {
/* Some kinda error */
session->banner_TxRx_state = libssh2_NB_state_idle;
session->banner_TxRx_total_send = 0;
return 1;
}
continue;
}
if (ret == 0) {
/* EOF */
session->banner_TxRx_state = libssh2_NB_state_idle;
session->banner_TxRx_total_send = 0;
return 1;
}
David
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