When reading pg_hba.conf and similar files, do not treat @file as an inclusion
unless (1) the @ isn't quoted and (2) the filename isn't empty. This guards
against unexpectedly treating usernames or other strings in "flat files"
as inclusion requests, as seen in a recent trouble report from Ed L.
The empty-filename case would be guaranteed to misbehave anyway, because our
subsequent path-munging behavior results in trying to read the directory
containing the current input file.
I think this might finally explain the report at
of a crash after printing "authentication file token too long, skipping",
since I was able to duplicate that message (though not a crash) on a
platform where stdio doesn't refuse to read directories. We never got
far in investigating that problem, but now I'm suspicious that the trigger
condition was an @ in the flat password file.
Back-patch to all active branches since the problem can be demonstrated in all
branches except HEAD. The test case, creating a user named "@", doesn't cause
a problem in HEAD since we got rid of the flat password file. Nonetheless it
seems like a good idea to not consider quoted @ as a file inclusion spec,
so I changed HEAD too.
hba.c (r188.8.131.52 -> r184.108.40.206)
hba.h (r1.33 -> r220.127.116.11)
pgsql-committers by date
|Next:||From: Magnus Hagander||Date: 2010-03-06 15:28:09|
|Subject: pgsql: Add --psqlrc=FILENAME parameter to psql, to process an explicitly |
|Previous:||From: Tom Lane||Date: 2010-03-06 00:46:19|
|Subject: pgsql: When reading pg_hba.conf and similar files, do not treat @file as |