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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 #ifdef HAVE_SYS_TYPES_H |
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28 #include <sys/types.h> |
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29 #endif |
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30 |
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31 #ifdef HAVE_GRP_H |
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32 #include <grp.h> |
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33 #endif |
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34 |
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35 #include "lo-error.h" |
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36 #include "oct-group.h" |
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37 #include "str-vec.h" |
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38 |
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39 #define NOT_SUPPORTED(nm) \ |
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40 nm ## ": not supported on this system" |
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41 |
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42 std::string |
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43 octave_group::name (void) const |
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44 { |
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45 if (! ok ()) |
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46 gripe_invalid (); |
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47 |
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48 return gr_name; |
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49 } |
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50 |
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51 std::string |
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52 octave_group::passwd (void) const |
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53 { |
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54 if (! ok ()) |
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55 gripe_invalid (); |
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56 |
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57 return gr_passwd; |
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58 } |
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59 |
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60 gid_t |
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61 octave_group::gid (void) const |
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62 { |
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63 if (! ok ()) |
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64 gripe_invalid (); |
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65 |
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66 return gr_gid; |
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67 } |
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68 |
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69 string_vector |
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70 octave_group::mem (void) const |
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71 { |
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72 if (! ok ()) |
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73 gripe_invalid (); |
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74 |
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75 return gr_mem; |
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76 } |
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77 |
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78 octave_group |
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79 octave_group::getgrent (void) |
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80 { |
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81 std::string msg; |
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82 return getgrent (msg); |
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83 } |
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84 |
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85 octave_group |
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86 octave_group::getgrent (std::string& msg) |
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87 { |
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88 #if defined (HAVE_GETGRENT) |
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89 msg = std::string (); |
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90 return octave_group (::getgrent (), msg); |
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91 #else |
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92 msg = NOT_SUPPORTED ("getgrent"); |
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93 return octave_group (); |
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94 #endif |
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95 } |
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96 |
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97 octave_group |
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98 octave_group::getgrgid (gid_t gid) |
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99 { |
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100 std::string msg; |
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101 return getgrgid (gid, msg); |
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102 } |
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103 |
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104 octave_group |
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105 octave_group::getgrgid (gid_t gid, std::string& msg) |
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106 { |
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107 #if defined (HAVE_GETGRGID) |
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108 msg = std::string (); |
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109 return octave_group (::getgrgid (gid), msg); |
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110 #else |
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111 msg = NOT_SUPPORTED ("getgruid"); |
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112 return octave_group (); |
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113 #endif |
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114 } |
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115 |
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116 octave_group |
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117 octave_group::getgrnam (const std::string& nm) |
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118 { |
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119 std::string msg; |
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120 return getgrnam (msg); |
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121 } |
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122 |
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123 octave_group |
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124 octave_group::getgrnam (const std::string& nm, std::string& msg) |
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125 { |
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126 #if defined (HAVE_GETGRNAM) |
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127 msg = std::string (); |
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128 return octave_group (::getgrnam (nm.c_str ()), msg); |
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129 #else |
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130 msg = NOT_SUPPORTED ("getgrnam"); |
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131 return octave_group (); |
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132 #endif |
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133 } |
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134 |
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135 int |
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136 octave_group::setgrent (void) |
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137 { |
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138 std::string msg; |
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139 return setgrent (msg); |
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140 } |
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141 |
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142 int |
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143 octave_group::setgrent (std::string& msg) |
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144 { |
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145 #if defined (HAVE_SETGRENT) |
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146 msg = std::string (); |
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147 ::setgrent (); |
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148 return 0; |
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149 #else |
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150 msg = NOT_SUPPORTED ("setgrent"); |
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151 return -1; |
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152 #endif |
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153 } |
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154 |
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155 int |
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156 octave_group::endgrent (void) |
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157 { |
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158 std::string msg; |
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159 return endgrent (msg); |
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160 } |
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161 |
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162 int |
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163 octave_group::endgrent (std::string& msg) |
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164 { |
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165 #if defined (HAVE_ENDGRENT) |
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166 msg = std::string (); |
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167 ::endgrent (); |
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168 return 0; |
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169 #else |
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170 msg = NOT_SUPPORTED ("endgrent"); |
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171 return -1; |
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172 #endif |
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173 } |
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174 |
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175 octave_group::octave_group (void *p, std::string& msg) |
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176 : gr_name (), gr_passwd (), gr_gid (0), gr_mem (), valid (false) |
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177 { |
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178 #if defined (HAVE_GRP_H) |
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179 msg = std::string (); |
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180 |
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181 if (p) |
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182 { |
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183 struct group *gr = static_cast<struct group *> (p); |
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184 |
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185 gr_name = gr->gr_name; |
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186 |
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187 #if defined (HAVE_GR_PASSWD) |
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188 gr_passwd = gr->gr_passwd; |
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189 #endif |
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190 |
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191 // XXX FIXME XXX -- maybe there should be a string_vector |
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192 // constructor that takes a NULL terminated list of C |
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193 // strings. |
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194 |
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195 const char * const *tmp = gr->gr_mem; |
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196 |
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197 int k = 0; |
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198 while (*tmp++) |
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199 k++; |
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200 |
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201 if (k > 0) |
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202 { |
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203 tmp = gr->gr_mem; |
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204 |
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205 gr_mem.resize (k); |
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206 |
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207 for (int i = 0; i < k; i++) |
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208 gr_mem[i] = tmp[i]; |
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209 } |
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210 |
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211 valid = true; |
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212 } |
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213 #else |
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214 msg = NOT_SUPPORTED ("group functions"); |
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215 #endif |
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216 } |
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217 |
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218 void |
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219 octave_group::gripe_invalid (void) const |
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220 { |
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221 (*current_liboctave_error_handler) ("invalid group object"); |
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222 } |
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223 |
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224 /* |
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225 ;;; Local Variables: *** |
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226 ;;; mode: C++ *** |
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227 ;;; End: *** |
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228 */ |
