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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 #ifdef HAVE_GRP_H |
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34 #include <grp.h> |
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35 #endif |
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36 |
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37 #include "defun-dld.h" |
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38 #include "error.h" |
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39 #include "gripes.h" |
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40 #include "help.h" |
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41 #include "oct-map.h" |
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42 #include "ov.h" |
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43 #include "oct-obj.h" |
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44 #include "utils.h" |
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45 |
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46 // Group file functions. (Why not?) |
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47 |
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48 static octave_value |
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49 mk_gr_map (struct group *gr) |
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50 { |
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51 octave_value retval; |
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52 |
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53 if (gr) |
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54 { |
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55 Octave_map m; |
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56 |
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57 m ["name"] = gr->gr_name; |
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58 #if defined (HAVE_GR_PASSWD) |
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59 m ["passwd"] = gr->gr_passwd; |
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60 #else |
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61 m ["passwd"] = ""; |
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62 #endif |
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63 m ["gid"] = static_cast<double> (gr->gr_gid); |
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64 |
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65 if (gr->gr_mem) |
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66 { |
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67 // XXX FIXME XXX -- maybe there should be a string_vector |
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68 // constructor that takes a NULL terminated list of C |
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69 // strings. |
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70 |
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71 char **tmp = gr->gr_mem; |
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72 |
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73 int k = 0; |
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74 while (*tmp++) |
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75 k++; |
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76 |
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77 if (k > 0) |
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78 { |
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79 tmp = gr->gr_mem; |
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80 |
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81 string_vector members (k); |
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82 |
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83 for (int i = 0; i < k; i++) |
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84 members[i] = tmp[i]; |
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85 |
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86 m ["mem"] = members; |
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87 } |
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88 else |
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89 m ["mem"] = ""; |
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90 } |
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91 |
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92 retval = m; |
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93 } |
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94 else |
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95 retval = 0.0; |
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96 |
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97 return retval; |
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98 } |
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99 |
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100 DEFUN_DLD (getgrent, args, , |
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101 "getgrent ()\n\ |
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102 \n\ |
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103 Read an entry from the group-file stream, opening it if necessary.") |
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104 { |
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105 octave_value retval; |
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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 == 0) |
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110 { |
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111 #ifdef HAVE_GETGRENT |
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112 retval = mk_gr_map (getgrent ()); |
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113 #else |
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114 gripe_not_supported ("getgrent"); |
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115 #endif |
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116 } |
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117 else |
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118 print_usage ("getgrent"); |
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119 |
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120 return retval; |
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121 } |
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122 |
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123 DEFUN_DLD (getgrgid, args, , |
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124 "getgrgid (GID)\n\ |
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125 \n\ |
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126 Search for a group entry with a matching group ID.") |
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127 { |
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128 octave_value retval; |
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129 |
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130 int nargin = args.length (); |
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131 |
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132 if (nargin == 1) |
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133 { |
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134 #ifdef HAVE_GETGRGID |
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135 double dval = args(0).double_value (); |
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136 |
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137 if (! error_state) |
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138 { |
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139 if (D_NINT (dval) == dval) |
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140 { |
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141 gid_t gid = static_cast<gid_t> (dval); |
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142 |
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143 retval = mk_gr_map (getgrgid (gid)); |
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144 } |
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145 else |
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146 error ("getgrgid: argument must be an integer"); |
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147 } |
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148 #else |
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149 gripe_not_supported ("getgrgid"); |
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150 #endif |
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151 } |
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152 else |
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153 print_usage ("getgrgid"); |
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154 |
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155 return retval; |
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156 } |
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157 |
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158 DEFUN_DLD (getgrnam, args, , |
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159 "getgrnam (NAME)\n\ |
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160 \n\ |
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161 Search for group entry with a matching group name.") |
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162 { |
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163 octave_value retval; |
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164 |
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165 int nargin = args.length (); |
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166 |
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167 if (nargin == 1) |
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168 { |
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169 #ifdef HAVE_GETGRNAM |
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170 string s = args(0).string_value (); |
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171 |
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172 if (! error_state) |
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173 retval = mk_gr_map (getgrnam (s.c_str ())); |
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174 #else |
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175 gripe_not_supported ("getgrnam"); |
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176 #endif |
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177 } |
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178 else |
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179 print_usage ("getgrnam"); |
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180 |
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181 return retval; |
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182 } |
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183 |
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184 DEFUN_DLD (setgrent, args, , |
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185 "setgrent ()\n\ |
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186 \n\ |
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187 Rewind the group-file stream.") |
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188 { |
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189 octave_value retval; |
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190 |
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191 int nargin = args.length (); |
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192 |
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193 if (nargin == 0) |
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194 { |
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195 #ifdef HAVE_SETGRENT |
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196 setgrent (); |
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197 #else |
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198 gripe_not_supported ("setgrent"); |
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199 #endif |
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200 } |
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201 else |
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202 print_usage ("setgrent"); |
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203 |
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204 return retval; |
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205 } |
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206 |
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207 DEFUN_DLD (endgrent, args, , |
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208 "endgrent ()\n\ |
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209 \n\ |
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210 Close the group-file stream.") |
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211 { |
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212 octave_value retval; |
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213 |
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214 int nargin = args.length (); |
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215 |
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216 if (nargin == 0) |
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217 { |
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218 #ifdef HAVE_ENDGRENT |
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219 endgrent (); |
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220 #else |
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221 gripe_not_supported ("endgrent"); |
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222 #endif |
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223 } |
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224 else |
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225 print_usage ("endgrent"); |
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226 |
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227 return retval; |
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228 } |
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229 |
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230 /* |
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231 ;;; Local Variables: *** |
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232 ;;; mode: C++ *** |
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233 ;;; End: *** |
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234 */ |
