02-25-2013
Disclaimer: I have never used AIX. Everything I say below is based on the OP's statement that /dev/null is a regular file.
Quote:
Originally Posted by
Corona688
Take my advice with a grain of salt since I'm not an AIX expert, but: Having a /dev/null that is not a character device could be a big problem, yes! Things might create huge files in it, expecting them to go into the bit bucket, but actually ending up on disk instead... Some memory mapping things might not work right... etc.
Although a less common scenario, there are times when using /dev/null for reading is useful. One example that comes to mind is with grep, to force its output to include filenames, you may explicitly list /dev/null in a find -exec predicate or an xargs invocation, to ensure that grep is never called with a single file argument. If /dev/null does not yield nothing but EOF ... woe.
Regards,
Alister
Last edited by alister; 02-25-2013 at 02:26 PM..
This User Gave Thanks to alister For This Post:
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LEARN ABOUT SUNOS
sock2path
sock2path(4) File Formats sock2path(4)
NAME
sock2path - file that maps sockets to transport providers
SYNOPSIS
/etc/sock2path
DESCRIPTION
The socket mapping file, /etc/sock2path, is a system file that contains the mappings between the socket(3SOCKET) call parameters and the
transport provider driver. Its format is described on the soconfig(1M) manual page.
The init(1M) utility uses the soconfig utility with the sock2path file during the booting sequence.
EXAMPLES
Example 1: A Sample sock2path File
The following is a sample sock2path file:
# Family Type Protocol Path
2 2 0 /dev/tcp
2 2 6 /dev/tcp
26 2 0 /dev/tcp6
26 2 6 /dev/tcp6
2 1 0 /dev/udp
2 1 17 /dev/udp
26 1 0 /dev/udp6
26 1 17 /dev/udp6
1 2 0 /dev/ticotsord
1 6 0 /dev/ticotsord
1 1 0 /dev/ticlts
2 4 0 /dev/rawip
26 4 0 /dev/rawip6
24 4 0 /dev/rts
27 4 2 /dev/keysock
SEE ALSO
soconfig(1M), socket(3SOCKET)
Network Interfaces Programmer's Guide
SunOS 5.10 10 Nov 1999 sock2path(4)