Dup2 - for file descriptor opened by a different process


 
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# 1  
Old 08-30-2012
Java Dup2 - for file descriptor opened by a different process

is it possible to duplicate file descriptors(opened by a different process) with the help of dup or dup2. the two process do not share parent child relationship as well.
# 2  
Old 08-30-2012
The only way to do this is by sharing file descriptors using UNIX domain sockets.

Here is sample code, from several years ago:

Unix socket magic
This User Gave Thanks to jim mcnamara For This Post:
# 3  
Old 09-03-2012
will sharing through sockets allow seeing the correct OFFSET value as well??

---------- Post updated at 08:34 PM ---------- Previous update was at 08:32 PM ----------

the other way i can think of is to point to the same entry in the file table which contains details about the file descriptor
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