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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <string> |
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28 |
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29 #ifdef HAVE_SYS_TYPES_H |
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30 #include <sys/types.h> |
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31 #endif |
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32 |
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33 #include "oct-group.h" |
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34 |
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35 #include "defun-dld.h" |
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36 #include "error.h" |
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37 #include "gripes.h" |
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38 #include "oct-map.h" |
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39 #include "ov.h" |
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40 #include "oct-obj.h" |
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41 #include "utils.h" |
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42 |
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43 // Group file functions. (Why not?) |
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44 |
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45 static octave_value |
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46 mk_gr_map (const octave_group& gr) |
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47 { |
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48 octave_value retval; |
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49 |
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50 if (gr) |
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51 { |
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52 Octave_map m; |
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53 |
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54 m.assign ("name", gr.name ()); |
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55 m.assign ("passwd", gr.passwd ()); |
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56 m.assign ("gid", static_cast<double> (gr.gid ())); |
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57 m.assign ("mem", octave_value (gr.mem ())); |
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58 |
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59 retval = m; |
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60 } |
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61 else |
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62 retval = 0; |
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63 |
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64 return retval; |
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65 } |
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66 |
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67 DEFUN_DLD (getgrent, args, , |
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68 "-*- texinfo -*-\n\ |
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69 @deftypefn {Loadable Function} {@var{grp_struct} =} getgrent ()\n\ |
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70 Return an entry from the group database, opening it if necessary.\n\ |
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71 Once the end of the data has been reached, @code{getgrent} returns 0.\n\ |
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72 @end deftypefn") |
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73 { |
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74 octave_value_list retval; |
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75 |
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76 retval(1) = std::string (); |
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77 retval(0) = 0; |
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78 |
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79 int nargin = args.length (); |
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80 |
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81 if (nargin == 0) |
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82 { |
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83 std::string msg; |
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84 |
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85 retval(0) = mk_gr_map (octave_group::getgrent (msg)); |
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86 retval(1) = msg; |
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87 } |
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88 else |
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89 print_usage ("getgrent"); |
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90 |
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91 return retval; |
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92 } |
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93 |
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94 DEFUN_DLD (getgrgid, args, , |
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95 "-*- texinfo -*-\n\ |
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96 @deftypefn {Loadable Function} {@var{grp_struct} =} getgrgid (@var{gid}).\n\ |
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97 Return the first entry from the group database with the group ID\n\ |
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98 @var{gid}. If the group ID does not exist in the database,\n\ |
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99 @code{getgrgid} returns 0.\n\ |
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100 @end deftypefn") |
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101 { |
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102 octave_value_list retval; |
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103 |
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104 retval(1) = std::string (); |
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105 retval(0) = 0; |
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106 |
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107 int nargin = args.length (); |
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108 |
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109 if (nargin == 1) |
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110 { |
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111 double dval = args(0).double_value (); |
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112 |
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113 if (! error_state) |
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114 { |
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115 if (D_NINT (dval) == dval) |
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116 { |
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117 gid_t gid = static_cast<gid_t> (dval); |
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118 |
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119 std::string msg; |
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120 |
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121 retval(0) = mk_gr_map (octave_group::getgrgid (gid, msg)); |
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122 retval(1) = msg; |
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123 } |
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124 else |
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125 error ("getgrgid: argument must be an integer"); |
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126 } |
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127 } |
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128 else |
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129 print_usage ("getgrgid"); |
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130 |
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131 return retval; |
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132 } |
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133 |
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134 DEFUN_DLD (getgrnam, args, , |
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135 "-*- texinfo -*-\n\ |
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136 @deftypefn {Loadable Function} {@var{grp_struct} =} getgrnam (@var{name})\n\ |
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137 Return the first entry from the group database with the group name\n\ |
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138 @var{name}. If the group name does not exist in the database,\n\ |
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139 @code{getgrname} returns 0.\n\ |
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140 @end deftypefn") |
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141 { |
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142 octave_value_list retval; |
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143 |
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144 retval(1) = std::string (); |
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145 retval(0) = 0; |
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146 |
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147 int nargin = args.length (); |
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148 |
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149 if (nargin == 1) |
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150 { |
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151 std::string s = args(0).string_value (); |
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152 |
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153 if (! error_state) |
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154 { |
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155 std::string msg; |
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156 |
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157 retval(0) = mk_gr_map (octave_group::getgrnam (s.c_str (), msg)); |
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158 retval(1) = msg; |
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159 } |
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160 } |
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161 else |
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162 print_usage ("getgrnam"); |
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163 |
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164 return retval; |
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165 } |
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166 |
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167 DEFUN_DLD (setgrent, args, , |
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168 "-*- texinfo -*-\n\ |
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169 @deftypefn {Loadable Function} {} setgrent ()\n\ |
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170 Return the internal pointer to the beginning of the group database.\n\ |
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171 @end deftypefn") |
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172 { |
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173 octave_value_list retval; |
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174 |
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175 retval(1) = std::string (); |
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176 retval(0) = -1.0; |
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177 |
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178 int nargin = args.length (); |
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179 |
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180 if (nargin == 0) |
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181 { |
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182 std::string msg; |
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183 |
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184 retval(0) = static_cast<double> (octave_group::setgrent (msg)); |
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185 retval(1) = msg; |
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186 } |
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187 else |
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188 print_usage ("setgrent"); |
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189 |
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190 return retval; |
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191 } |
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192 |
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193 DEFUN_DLD (endgrent, args, , |
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194 "-*- texinfo -*-\n\ |
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195 @deftypefn {Loadable Function} {} endgrent ()\n\ |
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196 Close the group database.\n\ |
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197 @end deftypefn") |
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198 { |
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199 octave_value_list retval; |
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200 |
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201 retval(1) = std::string (); |
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202 retval(0) = -1.0; |
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203 |
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204 int nargin = args.length (); |
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205 |
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206 if (nargin == 0) |
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207 { |
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208 std::string msg; |
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209 |
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210 retval(0) = static_cast<double> (octave_group::endgrent (msg)); |
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211 retval(1) = msg; |
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212 } |
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213 else |
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214 print_usage ("endgrent"); |
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215 |
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216 return retval; |
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217 } |
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218 |
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219 /* |
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220 ;;; Local Variables: *** |
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221 ;;; mode: C++ *** |
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222 ;;; End: *** |
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223 */ |
