| 1 |
# passwd.awk --- access password file information |
| 2 |
# |
| 3 |
# Arnold Robbins, arnold@skeeve.com, Public Domain |
| 4 |
# May 1993 |
| 5 |
# Revised October 2000 |
| 6 |
|
| 7 |
BEGIN { |
| 8 |
# tailor this to suit your system |
| 9 |
_pw_awklib = "/usr/sbin/awk/" |
| 10 |
} |
| 11 |
|
| 12 |
function _pw_init( oldfs, oldrs, olddol0, pwcat, using_fw) |
| 13 |
{ |
| 14 |
if (_pw_inited) |
| 15 |
return |
| 16 |
|
| 17 |
oldfs = FS |
| 18 |
oldrs = RS |
| 19 |
olddol0 = $0 |
| 20 |
using_fw = (PROCINFO["FS"] == "FIELDWIDTHS") |
| 21 |
FS = ":" |
| 22 |
RS = "\n" |
| 23 |
|
| 24 |
pwcat = _pw_awklib "pwcat" |
| 25 |
while ((pwcat | getline) > 0) { |
| 26 |
_pw_byname[$1] = $0 |
| 27 |
_pw_byuid[$3] = $0 |
| 28 |
_pw_bycount[++_pw_total] = $0 |
| 29 |
} |
| 30 |
close(pwcat) |
| 31 |
_pw_count = 0 |
| 32 |
_pw_inited = 1 |
| 33 |
FS = oldfs |
| 34 |
if (using_fw) |
| 35 |
FIELDWIDTHS = FIELDWIDTHS |
| 36 |
RS = oldrs |
| 37 |
$0 = olddol0 |
| 38 |
} |
| 39 |
function getpwnam(name) |
| 40 |
{ |
| 41 |
_pw_init() |
| 42 |
if (name in _pw_byname) |
| 43 |
return _pw_byname[name] |
| 44 |
return "" |
| 45 |
} |
| 46 |
function getpwuid(uid) |
| 47 |
{ |
| 48 |
_pw_init() |
| 49 |
if (uid in _pw_byuid) |
| 50 |
return _pw_byuid[uid] |
| 51 |
return "" |
| 52 |
} |
| 53 |
function getpwent() |
| 54 |
{ |
| 55 |
_pw_init() |
| 56 |
if (_pw_count < _pw_total) |
| 57 |
return _pw_bycount[++_pw_count] |
| 58 |
return "" |
| 59 |
} |
| 60 |
function endpwent() |
| 61 |
{ |
| 62 |
_pw_count = 0 |
| 63 |
} |
