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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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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 #include <iostream> |
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29 #include <string> |
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30 |
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31 #ifdef HAVE_UNISTD_H |
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32 #ifdef HAVE_SYS_TYPES_H |
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33 #include <sys/types.h> |
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34 #endif |
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35 #include <unistd.h> |
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36 #endif |
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37 |
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38 #include "file-ops.h" |
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39 #include "lo-error.h" |
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40 #include "pathlen.h" |
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41 |
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42 std::string |
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43 octave_getcwd (void) |
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44 { |
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45 std::string retval; |
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46 |
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47 char buf[MAXPATHLEN]; |
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48 |
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49 char *tmp = 0; |
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50 |
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51 #if defined (__EMX__) |
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52 tmp = _getcwd2 (buf, MAXPATHLEN); |
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53 #elif defined (HAVE_GETCWD) |
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54 tmp = getcwd (buf, MAXPATHLEN); |
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55 #elif defined (HAVE_GETWD) |
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56 tmp = getwd (buf); |
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57 #endif |
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58 |
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59 if (tmp) |
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60 retval = tmp; |
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61 else |
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62 (*current_liboctave_error_handler) ("unable to find current directory"); |
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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 int |
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68 octave_chdir (const std::string& path_arg) |
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69 { |
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70 std::string path = file_ops::tilde_expand (path_arg); |
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71 |
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72 #if defined (__EMX__) |
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73 int retval = -1; |
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74 |
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75 char *tmp_path = strsave (path.c_str ()); |
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76 |
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77 if (path.length () == 2 && path[1] == ':') |
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78 { |
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79 char *upper_case_dir_name = strupr (tmp_path); |
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80 _chdrive (upper_case_dir_name[0]); |
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81 if (_getdrive () == upper_case_dir_name[0]) |
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82 retval = _chdir2 ("/"); |
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83 } |
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84 else |
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85 retval = _chdir2 (tmp_path); |
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86 |
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87 delete [] tmp_path; |
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88 |
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89 return retval; |
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90 #else |
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91 return chdir (path.c_str ()); |
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92 #endif |
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93 } |
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94 |
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95 #ifdef _MSC_VER |
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96 |
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97 // FIXME -- it would probably be better to adapt the versions of |
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98 // opendir, readdir, and closedir from Emacs as they appear to be more |
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99 // complete implementations (do the functions below work for network |
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100 // paths, for example)? We can probably get along without rewinddir. |
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101 |
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102 #include <windows.h> |
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103 |
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104 struct direct |
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105 { |
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106 char *d_name; |
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107 }; |
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108 |
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109 typedef struct |
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110 { |
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111 HANDLE hnd; |
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112 WIN32_FIND_DATA fd; |
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113 int dirty; |
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114 struct direct d; |
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115 const char* current; |
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116 } DIR; |
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117 |
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118 DIR * |
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119 opendir (const char *name) |
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120 { |
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121 DIR *d = static_cast<DIR *> (malloc (sizeof (DIR))); |
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122 static char buffer[MAX_PATH]; |
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123 |
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124 strncpy (buffer, name, MAX_PATH); |
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125 strncat (buffer, "\\*", MAX_PATH); |
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126 d->current = buffer; |
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127 d->hnd = FindFirstFile (buffer, &(d->fd)); |
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128 if (d->hnd == INVALID_HANDLE_VALUE) |
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129 return 0; |
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130 d->dirty = 1; |
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131 return d; |
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132 } |
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133 |
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134 void |
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135 rewinddir (DIR* d) |
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136 { |
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137 if (d->hnd != INVALID_HANDLE_VALUE) |
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138 FindClose (d->hnd); |
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139 d->hnd = FindFirstFile (d->current, &(d->fd)); |
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140 d->dirty = 1; |
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141 } |
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142 |
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143 void |
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144 closedir (DIR *d) |
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145 { |
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146 if (d->hnd != INVALID_HANDLE_VALUE) |
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147 FindClose (d->hnd); |
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148 free (d); |
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149 } |
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150 |
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151 struct direct * |
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152 readdir (DIR *d) |
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153 { |
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154 if (! d->dirty) |
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155 { |
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156 if (! FindNextFile(d->hnd, &(d->fd))) |
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157 return 0; |
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158 } |
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159 d->d.d_name = d->fd.cFileName; |
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160 d->dirty = 0; |
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161 return &(d->d); |
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162 } |
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163 |
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164 #endif |
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165 |
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166 /* |
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167 ;;; Local Variables: *** |
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168 ;;; mode: C++ *** |
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169 ;;; End: *** |
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170 */ |
