masqmail
view admin/guess-hostname @ 331:e507c854a63e
Security fix! Correct handling of seteuid() return value
See Debian bug #638002, reported by John Lightsey.
When possible the (already available) set_euidgid() function is used.
Additionally, it is unnecessary to change the identity when writing
into an already open file descriptor.
This should fix the problem.
| author | markus schnalke <meillo@marmaro.de> |
|---|---|
| date | Sat, 27 Aug 2011 16:19:07 +0200 |
| parents | 92b58989a09e |
| children |
line source
1 #!/bin/sh
2 #
3 # try several ways to guess the hostname
4 # earlier output lines are probably better
6 (
8 # this is what Debian uses
9 cat /etc/mailname
11 # probably a good value on GNU/Linux
12 hostname -f
14 # this is often the short hostname
15 cat /etc/hostname
17 # often the short hostname, but widely available
18 hostname
20 # this file was mentioned on the Internet
21 cat /etc/HOSTNAME
23 ) 2>/dev/null | uniq
25 exit 0