Mercurial > octave
annotate src/DLD-FUNCTIONS/getpwent.cc @ 10182:0522a65bcd56
assume unistd.h and sys/types.h exist
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 21 Jan 2010 15:41:19 -0500 |
| parents | d0ce5e973937 |
| children | e9966851619b |
| rev | line source |
|---|---|
| 2928 | 1 /* |
| 2 | |
| 8920 | 3 Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2005, 2006, 2007, 2008 |
| 7017 | 4 John W. Eaton |
| 2928 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 2928 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 2928 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 28 #include <string> | |
| 29 | |
| 30 #include <sys/types.h> | |
| 31 | |
| 2933 | 32 #include "oct-passwd.h" |
| 2928 | 33 |
| 34 #include "defun-dld.h" | |
| 35 #include "error.h" | |
| 36 #include "gripes.h" | |
| 37 #include "oct-map.h" | |
| 38 #include "ov.h" | |
| 39 #include "oct-obj.h" | |
| 40 #include "utils.h" | |
| 41 | |
| 42 // Password file functions. (Why not?) | |
| 43 | |
| 44 static octave_value | |
| 2933 | 45 mk_pw_map (const octave_passwd& pw) |
| 2928 | 46 { |
| 47 octave_value retval; | |
| 48 | |
| 49 if (pw) | |
| 50 { | |
| 51 Octave_map m; | |
| 52 | |
| 4675 | 53 m.assign ("name", pw.name ()); |
| 54 m.assign ("passwd", pw.passwd ()); | |
| 55 m.assign ("uid", static_cast<double> (pw.uid ())); | |
| 56 m.assign ("gid", static_cast<double> (pw.gid ())); | |
| 57 m.assign ("gecos", pw.gecos ()); | |
| 58 m.assign ("dir", pw.dir ()); | |
| 59 m.assign ("shell", pw.shell ()); | |
| 2928 | 60 |
| 61 retval = m; | |
| 62 } | |
| 63 else | |
| 4233 | 64 retval = 0; |
| 2928 | 65 |
| 66 return retval; | |
| 67 } | |
| 68 | |
| 69 DEFUN_DLD (getpwent, args, , | |
| 3301 | 70 "-*- texinfo -*-\n\ |
| 7650 | 71 @deftypefn {Loadable Function} {@var{pw_struct} =} getpwent ()\n\ |
| 3301 | 72 Return a structure containing an entry from the password database,\n\ |
|
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73 opening it if necessary. Once the end of the data has been reached,\n\ |
| 3301 | 74 @code{getpwent} returns 0.\n\ |
| 75 @end deftypefn") | |
| 2928 | 76 { |
| 2937 | 77 octave_value_list retval; |
| 78 | |
| 3523 | 79 retval(1) = std::string (); |
| 4233 | 80 retval(0) = 0; |
| 2928 | 81 |
| 82 int nargin = args.length (); | |
| 83 | |
| 84 if (nargin == 0) | |
| 2937 | 85 { |
| 3523 | 86 std::string msg; |
| 2937 | 87 |
| 88 retval(0) = mk_pw_map (octave_passwd::getpwent (msg)); | |
| 89 retval(1) = msg; | |
| 90 } | |
| 2928 | 91 else |
| 5823 | 92 print_usage (); |
| 2928 | 93 |
| 94 return retval; | |
| 95 } | |
| 96 | |
| 97 DEFUN_DLD (getpwuid, args, , | |
| 3301 | 98 "-*- texinfo -*-\n\ |
| 7650 | 99 @deftypefn {Loadable Function} {@var{pw_struct} =} getpwuid (@var{uid}).\n\ |
| 3301 | 100 Return a structure containing the first entry from the password database\n\ |
| 101 with the user ID @var{uid}. If the user ID does not exist in the\n\ | |
| 102 database, @code{getpwuid} returns 0.\n\ | |
| 103 @end deftypefn") | |
| 2928 | 104 { |
| 2937 | 105 octave_value_list retval; |
| 106 | |
| 3523 | 107 retval(1) = std::string (); |
| 4233 | 108 retval(0) = 0; |
| 2928 | 109 |
| 110 int nargin = args.length (); | |
| 111 | |
| 112 if (nargin == 1) | |
| 113 { | |
| 114 double dval = args(0).double_value (); | |
| 115 | |
| 116 if (! error_state) | |
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117 { |
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118 if (D_NINT (dval) == dval) |
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119 { |
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120 uid_t uid = static_cast<uid_t> (dval); |
| 2928 | 121 |
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122 std::string msg; |
| 2937 | 123 |
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124 retval(0) = mk_pw_map (octave_passwd::getpwuid (uid, msg)); |
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125 retval(1) = msg; |
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126 } |
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127 else |
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128 error ("getpwuid: argument must be an integer"); |
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129 } |
| 2928 | 130 } |
| 131 else | |
| 5823 | 132 print_usage (); |
| 2928 | 133 |
| 134 return retval; | |
| 135 } | |
| 136 | |
| 137 DEFUN_DLD (getpwnam, args, , | |
| 3301 | 138 "-*- texinfo -*-\n\ |
| 7650 | 139 @deftypefn {Loadable Function} {@var{pw_struct} =} getpwnam (@var{name})\n\ |
| 3301 | 140 Return a structure containing the first entry from the password database\n\ |
| 141 with the user name @var{name}. If the user name does not exist in the\n\ | |
| 142 database, @code{getpwname} returns 0.\n\ | |
| 143 @end deftypefn") | |
| 2928 | 144 { |
| 2937 | 145 octave_value_list retval; |
| 146 | |
| 3523 | 147 retval(1) = std::string (); |
| 2937 | 148 retval(0) = 0.0; |
| 2928 | 149 |
| 150 int nargin = args.length (); | |
| 151 | |
| 152 if (nargin == 1) | |
| 153 { | |
| 3523 | 154 std::string s = args(0).string_value (); |
| 2928 | 155 |
| 156 if (! error_state) | |
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157 { |
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158 std::string msg; |
| 2937 | 159 |
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160 retval(0) = mk_pw_map (octave_passwd::getpwnam (s, msg)); |
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161 retval(1) = msg; |
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162 } |
| 2928 | 163 } |
| 164 else | |
| 5823 | 165 print_usage (); |
| 2928 | 166 |
| 167 return retval; | |
| 168 } | |
| 169 | |
| 170 DEFUN_DLD (setpwent, args, , | |
| 3301 | 171 "-*- texinfo -*-\n\ |
| 172 @deftypefn {Loadable Function} {} setpwent ()\n\ | |
| 173 Return the internal pointer to the beginning of the password database.\n\ | |
| 174 @end deftypefn") | |
| 2928 | 175 { |
| 2937 | 176 octave_value_list retval; |
| 177 | |
| 3523 | 178 retval(1) = std::string (); |
| 2937 | 179 retval(0) = -1.0; |
| 2928 | 180 |
| 181 int nargin = args.length (); | |
| 182 | |
| 183 if (nargin == 0) | |
| 2937 | 184 { |
| 3523 | 185 std::string msg; |
| 2937 | 186 |
| 187 retval(0) = static_cast<double> (octave_passwd::setpwent (msg)); | |
| 188 retval(1) = msg; | |
| 189 } | |
| 2928 | 190 else |
| 5823 | 191 print_usage (); |
| 2928 | 192 |
| 193 return retval; | |
| 194 } | |
| 195 | |
| 196 DEFUN_DLD (endpwent, args, , | |
| 3301 | 197 "-*- texinfo -*-\n\ |
| 198 @deftypefn {Loadable Function} {} endpwent ()\n\ | |
| 199 Close the password database.\n\ | |
| 200 @end deftypefn") | |
| 2928 | 201 { |
| 2937 | 202 octave_value_list retval; |
| 203 | |
| 3523 | 204 retval(1) = std::string (); |
| 2937 | 205 retval(0) = -1.0; |
| 2928 | 206 |
| 207 int nargin = args.length (); | |
| 208 | |
| 209 if (nargin == 0) | |
| 2937 | 210 { |
| 3523 | 211 std::string msg; |
| 2937 | 212 |
| 213 retval(0) = static_cast<double> (octave_passwd::endpwent (msg)); | |
| 214 retval(1) = msg; | |
| 215 } | |
| 2928 | 216 else |
| 5823 | 217 print_usage (); |
| 2928 | 218 |
| 219 return retval; | |
| 220 } |