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# passwd.awk --- access password file information
#
# Arnold Robbins, [email protected], Public Domain
# May 1993
# Revised October 2000
# Revised December 2010
BEGIN {
# tailor this to suit your system
_pw_awklib = "/usr/lib/x86_64-linux-gnu/awk/"
}
function _pw_init( oldfs, oldrs, olddol0, pwcat, using_fw, using_fpat)
{
if (_pw_inited)
return
oldfs = FS
oldrs = RS
olddol0 = $0
using_fw = (PROCINFO["FS"] == "FIELDWIDTHS")
using_fpat = (PROCINFO["FS"] == "FPAT")
FS = ":"
RS = "\n"
pwcat = _pw_awklib "pwcat"
while ((pwcat | getline) > 0) {
_pw_byname[$1] = $0
_pw_byuid[$3] = $0
_pw_bycount[++_pw_total] = $0
}
close(pwcat)
_pw_count = 0
_pw_inited = 1
FS = oldfs
if (using_fw)
FIELDWIDTHS = FIELDWIDTHS
else if (using_fpat)
FPAT = FPAT
RS = oldrs
$0 = olddol0
}
function getpwnam(name)
{
_pw_init()
return _pw_byname[name]
}
function getpwuid(uid)
{
_pw_init()
return _pw_byuid[uid]
}
function getpwent()
{
_pw_init()
if (_pw_count < _pw_total)
return _pw_bycount[++_pw_count]
return ""
}
function endpwent()
{
_pw_count = 0
}