20 lines
455 B
Plaintext
20 lines
455 B
Plaintext
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#!/bin/sh
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#
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# Stupid little program to find the socket of stdin of the parent
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# of the specified process. Normally this is used for the
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# login shell to determine to which of several virtual hosts the
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# user connected.
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if [ $# -eq 0 ]
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then
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echo "Usage: $0 <pid of login shell>" >&2
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exit 1
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fi
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pid=$1
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ppid=`ps -ef | awk -v pid=$pid '$2 == pid { print $3 }'`
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sock=`lsof -p $ppid 2>/dev/null | awk '$4 == "0u" && $5 == "inet" { print $9 }'`
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echo $sock
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