OK, here is my attempt at patching and correcting the issue in this
thread. I have done my best to test to ensure that hot standby,
pg_basebackup, and pg_restore of older files work without issues. I
think this might be a larger patch that expected, I took some
liberties of trying to clean up a bit.
For example the block size '512' was scattered throughout the code
regarding the tar block size. I've replace instances of that with a
defined constant TAR_BLOCK_SIZE. I've likewise created other constants
and used them in place of raw numbers in what I hope makes the code a
bit more readable.
I've also used functions like strncpy(), strnlen(), and the like in
place of sprintf() where I could. Also instead of using sscanf() I
used a custom octal conversion routine which has a hard limit on how
many character it will process like strncpy() & strnlen().
I expect comments, hopefully they'll be positive.
-- Brian
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