| # 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/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 | |
| } | |