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Old 03-17-2003, 09:47 PM   #1
Ivan Lee
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about socket port

Hi all!

How can i ensure a socket port is unused (bind)?
thx!
 
Old 03-18-2003, 07:12 AM   #2
no2nt
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I don't recall that you can ensure that a socket is bound but you can reuse a socket with setsockopt() and SO_REUSEADDR option.
 
Old 03-19-2003, 12:55 AM   #3
Ivan Lee
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Thank you firstly!

But i know that when a client socket connected to the server, system will automatically assigns a port to it. My troubling is that how can system determine an unused port?
 
Old 03-19-2003, 02:10 AM   #4
GtkUser
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Linux Socket Programming ISBN: 0672319357
 
Old 03-20-2003, 03:45 AM   #5
Ivan Lee
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thanks all!

i got it: rresvport()
 
  


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