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reword comment for clarity

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--HG--
branch : nocircbuffer
This commit is contained in:
Matt Johnston 2015-03-01 23:26:42 +08:00
parent f782cf375a
commit 9e66b5a9b1
1 changed files with 4 additions and 2 deletions
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6
common-session.c
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@ -152,8 +152,10 @@ void session_loop(void(*loophandler)()) {
FD_ZERO(&readfd); FD_ZERO(&readfd);
dropbear_assert(ses.payload == NULL); dropbear_assert(ses.payload == NULL);
/* during initial setup we flush out the KEXINIT packet before /* We delay reading from the input socket during initial setup until
* attempting to read the remote version string, which might block */ after we have written out our initial KEXINIT packet (empty writequeue).
This means our initial packet can be in-flight while we're doing a blocking
read for the remote ident */
if (ses.sock_in != -1 && (ses.remoteident || isempty(&ses.writequeue))) { if (ses.sock_in != -1 && (ses.remoteident || isempty(&ses.writequeue))) {
FD_SET(ses.sock_in, &readfd); FD_SET(ses.sock_in, &readfd);
} }