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annotate admin/guess-hostname @ 331:e507c854a63e

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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 cab46cefa4ce
children
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1 #!/bin/sh
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2 #
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3 # try several ways to guess the hostname
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4 # earlier output lines are probably better
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5
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6 (
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7
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8 # this is what Debian uses
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9 cat /etc/mailname
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10
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11 # probably a good value on GNU/Linux
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12 hostname -f
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13
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14 # this is often the short hostname
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15 cat /etc/hostname
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16
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17 # often the short hostname, but widely available
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18 hostname
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20 # this file was mentioned on the Internet
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21 cat /etc/HOSTNAME
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22
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23 ) 2>/dev/null | uniq
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24
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25 exit 0