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1 /* |
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2 |
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3 Copyright (C) 1996, 1997, 2000, 2002, 2003, 2005, 2006, 2007 |
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4 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 3 of the License, or (at your |
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11 option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #ifdef HAVE_SYS_TYPES_H |
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29 #include <sys/types.h> |
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30 #endif |
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31 |
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32 #ifdef HAVE_GRP_H |
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33 #include <grp.h> |
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34 #endif |
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35 |
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36 #include "lo-error.h" |
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37 #include "oct-group.h" |
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38 #include "str-vec.h" |
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39 |
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40 #define NOT_SUPPORTED(nm) \ |
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41 nm ": not supported on this system" |
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42 |
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43 std::string |
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44 octave_group::name (void) const |
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45 { |
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46 if (! ok ()) |
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47 gripe_invalid (); |
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48 |
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49 return gr_name; |
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50 } |
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51 |
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52 std::string |
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53 octave_group::passwd (void) const |
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54 { |
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55 if (! ok ()) |
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56 gripe_invalid (); |
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57 |
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58 return gr_passwd; |
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59 } |
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60 |
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61 gid_t |
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62 octave_group::gid (void) const |
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63 { |
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64 if (! ok ()) |
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65 gripe_invalid (); |
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66 |
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67 return gr_gid; |
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68 } |
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69 |
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70 string_vector |
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71 octave_group::mem (void) const |
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72 { |
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73 if (! ok ()) |
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74 gripe_invalid (); |
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75 |
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76 return gr_mem; |
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77 } |
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78 |
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79 octave_group |
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80 octave_group::getgrent (void) |
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81 { |
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82 std::string msg; |
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83 return getgrent (msg); |
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84 } |
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85 |
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86 octave_group |
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87 octave_group::getgrent (std::string& msg) |
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88 { |
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89 #if defined (HAVE_GETGRENT) |
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90 msg = std::string (); |
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91 return octave_group (::getgrent (), msg); |
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92 #else |
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93 msg = NOT_SUPPORTED ("getgrent"); |
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94 return octave_group (); |
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95 #endif |
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96 } |
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97 |
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98 octave_group |
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99 octave_group::getgrgid (gid_t gid) |
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100 { |
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101 std::string msg; |
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102 return getgrgid (gid, msg); |
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103 } |
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104 |
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105 octave_group |
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106 octave_group::getgrgid (gid_t gid, std::string& msg) |
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107 { |
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108 #if defined (HAVE_GETGRGID) |
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109 msg = std::string (); |
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110 return octave_group (::getgrgid (gid), msg); |
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111 #else |
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112 msg = NOT_SUPPORTED ("getgruid"); |
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113 return octave_group (); |
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114 #endif |
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115 } |
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116 |
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117 octave_group |
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118 octave_group::getgrnam (const std::string& nm) |
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119 { |
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120 std::string msg; |
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121 return getgrnam (nm, msg); |
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122 } |
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123 |
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124 octave_group |
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125 octave_group::getgrnam (const std::string& nm, std::string& msg) |
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126 { |
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127 #if defined (HAVE_GETGRNAM) |
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128 msg = std::string (); |
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129 return octave_group (::getgrnam (nm.c_str ()), msg); |
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130 #else |
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131 msg = NOT_SUPPORTED ("getgrnam"); |
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132 return octave_group (); |
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133 #endif |
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134 } |
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135 |
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136 int |
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137 octave_group::setgrent (void) |
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138 { |
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139 std::string msg; |
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140 return setgrent (msg); |
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141 } |
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142 |
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143 int |
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144 octave_group::setgrent (std::string& msg) |
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145 { |
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146 #if defined (HAVE_SETGRENT) |
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147 msg = std::string (); |
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148 ::setgrent (); |
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149 return 0; |
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150 #else |
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151 msg = NOT_SUPPORTED ("setgrent"); |
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152 return -1; |
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153 #endif |
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154 } |
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155 |
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156 int |
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157 octave_group::endgrent (void) |
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158 { |
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159 std::string msg; |
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160 return endgrent (msg); |
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161 } |
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162 |
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163 int |
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164 octave_group::endgrent (std::string& msg) |
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165 { |
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166 #if defined (HAVE_ENDGRENT) |
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167 msg = std::string (); |
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168 ::endgrent (); |
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169 return 0; |
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170 #else |
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171 msg = NOT_SUPPORTED ("endgrent"); |
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172 return -1; |
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173 #endif |
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174 } |
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175 |
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176 octave_group::octave_group (void *p, std::string& msg) |
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177 : gr_name (), gr_passwd (), gr_gid (0), gr_mem (), valid (false) |
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178 { |
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179 #if defined (HAVE_GRP_H) |
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180 msg = std::string (); |
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181 |
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182 if (p) |
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183 { |
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184 struct group *gr = static_cast<struct group *> (p); |
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185 |
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186 gr_name = gr->gr_name; |
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187 |
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188 #if defined (HAVE_GR_PASSWD) |
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189 gr_passwd = gr->gr_passwd; |
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190 #endif |
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191 |
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192 gr_gid = gr->gr_gid; |
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193 |
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194 // FIXME -- maybe there should be a string_vector |
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195 // constructor that takes a NUL terminated list of C |
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196 // strings. |
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197 |
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198 const char * const *tmp = gr->gr_mem; |
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199 |
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200 int k = 0; |
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201 while (*tmp++) |
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202 k++; |
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203 |
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204 if (k > 0) |
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205 { |
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206 tmp = gr->gr_mem; |
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207 |
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208 gr_mem.resize (k); |
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209 |
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210 for (int i = 0; i < k; i++) |
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211 gr_mem[i] = tmp[i]; |
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212 } |
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213 |
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214 valid = true; |
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215 } |
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216 #else |
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217 msg = NOT_SUPPORTED ("group functions"); |
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218 #endif |
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219 } |
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220 |
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221 void |
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222 octave_group::gripe_invalid (void) const |
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223 { |
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224 (*current_liboctave_error_handler) ("invalid group object"); |
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225 } |
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226 |
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227 /* |
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228 ;;; Local Variables: *** |
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229 ;;; mode: C++ *** |
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230 ;;; End: *** |
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231 */ |
