46 lines
1.1 KiB
Bash
46 lines
1.1 KiB
Bash
#!/bin/sh
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# $Header: /var/cvs/uClibc/extra/scripts/getent,v 1.2 2005/02/02 14:18:01 solar Exp $
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#
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# Closely (not perfectly) emulate the behavior of glibc's getent utility
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#
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#passwd|shadow|group|aliases|hosts|networks|ethers|netgroup|protocols|services|rpc
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# only returns the first match (by design)
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# dns based search is not supported (hosts,networks)
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# case-insensitive matches not supported (ethers; others?)
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# may return false-positives (hosts,protocols,rpc,services,ethers)
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#
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# Taken from uClibc 0.9.33.
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export PATH="${PATH}:/bin:/usr/bin"
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file="/etc/$1"
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case $1 in
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passwd|group)
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match="^$2:\|^[^:]*:[^:]*:$2:" ;;
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shadow)
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match="^$2:" ;;
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networks|netgroup)
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match="^[[:space:]]*$2\>" ;;
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hosts|protocols|rpc|services|ethers)
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match="\<$2\>" ;;
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aliases)
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match="^[[:space:]]*$2[[:space:]]*:" ;;
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""|-h|--help)
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echo "USAGE: $0 database [key]"
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exit 0 ;;
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*)
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echo "$0: Unknown database: $1" 1>&2
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exit 1 ;;
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esac
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if [ ! -f "$file" ] ; then
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echo "$0: Could not find database file for $1" 1>&2
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exit 1
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fi
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if [ $# -eq 1 ] ; then
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exec cat "$file"
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else
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sed "s/#.*//; /$match/q; d" "$file" | grep . || exit 2
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fi
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