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1 /* |
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2 |
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3 Copyright (C) 1996, 1997, 2000, 2001, 2005, 2006, 2007 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 3 of the License, or (at your |
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10 option) any 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, see |
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19 <http://www.gnu.org/licenses/>. |
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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 <iostream> |
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28 #include <string> |
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29 #include <vector> |
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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 #ifdef HAVE_FCNTL_H |
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39 #include <fcntl.h> |
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40 #endif |
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41 |
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42 #include "file-ops.h" |
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43 #include "lo-error.h" |
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44 #include "pathlen.h" |
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45 #include "lo-sysdep.h" |
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46 #include "str-vec.h" |
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47 |
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48 std::string |
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49 octave_getcwd (void) |
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50 { |
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51 std::string retval; |
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52 |
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53 char buf[MAXPATHLEN]; |
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54 |
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55 char *tmp = 0; |
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56 |
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57 #if defined (__EMX__) |
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58 tmp = _getcwd2 (buf, MAXPATHLEN); |
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59 #elif defined (HAVE_GETCWD) |
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60 tmp = getcwd (buf, MAXPATHLEN); |
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61 #elif defined (HAVE_GETWD) |
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62 tmp = getwd (buf); |
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63 #endif |
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64 |
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65 if (tmp) |
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66 retval = tmp; |
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67 else |
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68 (*current_liboctave_error_handler) ("unable to find current directory"); |
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69 |
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70 return retval; |
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71 } |
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72 |
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73 int |
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74 octave_chdir (const std::string& path_arg) |
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75 { |
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76 std::string path = file_ops::tilde_expand (path_arg); |
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77 |
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78 #if defined (__EMX__) |
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79 int retval = -1; |
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80 |
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81 char *tmp_path = strsave (path.c_str ()); |
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82 |
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83 if (path.length () == 2 && path[1] == ':') |
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84 { |
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85 char *upper_case_dir_name = strupr (tmp_path); |
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86 _chdrive (upper_case_dir_name[0]); |
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87 if (_getdrive () == upper_case_dir_name[0]) |
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88 retval = _chdir2 ("/"); |
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89 } |
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90 else |
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91 retval = _chdir2 (tmp_path); |
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92 |
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93 delete [] tmp_path; |
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94 |
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95 return retval; |
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96 #else |
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97 |
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98 #if defined (__WIN32__) && ! defined (__CYGWIN__) |
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99 if (path.length() == 2 && path[1] == ':') |
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100 path += "\\"; |
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101 #endif |
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102 |
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103 return chdir (path.c_str ()); |
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104 #endif |
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105 } |
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106 |
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107 #if defined (__WIN32__) && ! defined (__CYGWIN__) |
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108 |
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109 pid_t |
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110 octave_popen2 (const std::string& cmd, const string_vector& args, bool sync_mode, |
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111 int *fildes, std::string& msg) |
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112 { |
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113 pid_t pid; |
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114 PROCESS_INFORMATION pi; |
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115 STARTUPINFO si; |
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116 std::string command = "\"" + cmd + "\""; |
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117 HANDLE hProcess = GetCurrentProcess(), childRead, childWrite, parentRead, parentWrite; |
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118 DWORD pipeMode; |
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119 |
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120 ZeroMemory (&pi, sizeof (pi)); |
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121 ZeroMemory (&si, sizeof (si)); |
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122 si.cb = sizeof (si); |
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123 |
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124 if (! CreatePipe (&childRead, &parentWrite, 0, 0) || |
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125 ! DuplicateHandle (hProcess, childRead, hProcess, &childRead, 0, TRUE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE)) |
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126 { |
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127 msg = "popen2: pipe creation failed"; |
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128 return -1; |
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129 } |
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130 if (! CreatePipe (&parentRead, &childWrite, 0, 0) || |
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131 ! DuplicateHandle (hProcess, childWrite, hProcess, &childWrite, 0, TRUE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE)) |
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132 { |
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133 msg = "popen2: pipe creation failed"; |
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134 return -1; |
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135 } |
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136 if (! sync_mode) |
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137 { |
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138 pipeMode = PIPE_NOWAIT; |
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139 SetNamedPipeHandleState (parentRead, &pipeMode, 0, 0); |
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140 SetNamedPipeHandleState (parentWrite, &pipeMode, 0, 0); |
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141 } |
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142 fildes[1] = _open_osfhandle (reinterpret_cast<long> (parentRead), _O_RDONLY | _O_BINARY); |
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143 fildes[0] = _open_osfhandle (reinterpret_cast<long> (parentWrite), _O_WRONLY | _O_BINARY); |
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144 si.dwFlags |= STARTF_USESTDHANDLES; |
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145 si.hStdInput = childRead; |
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146 si.hStdOutput = childWrite; |
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147 |
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148 // Ignore first arg as it is the command |
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149 for (int k=1; k<args.length(); k++) |
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150 command += " \"" + args[k] + "\""; |
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151 OCTAVE_LOCAL_BUFFER (char, c_command, command.length () + 1); |
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152 strcpy (c_command, command.c_str ()); |
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153 if (! CreateProcess (0, c_command, 0, 0, TRUE, 0, 0, 0, &si, &pi)) |
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154 { |
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155 msg = "popen2: process creation failed"; |
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156 return -1; |
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157 } |
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158 pid = pi.dwProcessId; |
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159 |
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160 CloseHandle (childRead); |
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161 CloseHandle (childWrite); |
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162 CloseHandle (pi.hProcess); |
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163 CloseHandle (pi.hThread); |
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164 |
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165 return pid; |
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166 } |
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167 |
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168 #endif |
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169 |
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170 #if defined (_MSC_VER) && ! defined (HAVE_DIRENT_H) |
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171 |
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172 // FIXME -- it would probably be better to adapt the versions of |
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173 // opendir, readdir, and closedir from Emacs as they appear to be more |
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174 // complete implementations (do the functions below work for network |
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175 // paths, for example)? We can probably get along without rewinddir. |
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176 |
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177 #include <windows.h> |
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178 |
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179 struct __DIR |
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180 { |
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181 HANDLE hnd; |
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182 WIN32_FIND_DATA fd; |
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183 int dirty; |
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184 struct direct d; |
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185 const char *current; |
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186 }; |
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187 |
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188 DIR * |
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189 opendir (const char *name) |
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190 { |
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191 DIR *d = static_cast<DIR *> (malloc (sizeof (DIR))); |
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192 static char buffer[MAX_PATH]; |
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193 |
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194 strncpy (buffer, name, MAX_PATH); |
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195 if (buffer[strnlen(buffer, MAX_PATH)-1] != '\\') |
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196 strncat (buffer, "\\*", MAX_PATH); |
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197 else |
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198 strncat (buffer, "*", MAX_PATH); |
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199 d->current = buffer; |
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200 d->hnd = FindFirstFile (buffer, &(d->fd)); |
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201 if (d->hnd == INVALID_HANDLE_VALUE) |
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202 return 0; |
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203 d->dirty = 1; |
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204 return d; |
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205 } |
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206 |
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207 void |
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208 rewinddir (DIR *d) |
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209 { |
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210 if (d->hnd != INVALID_HANDLE_VALUE) |
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211 FindClose (d->hnd); |
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212 d->hnd = FindFirstFile (d->current, &(d->fd)); |
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213 d->dirty = 1; |
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214 } |
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215 |
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216 void |
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217 closedir (DIR *d) |
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218 { |
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219 if (d->hnd != INVALID_HANDLE_VALUE) |
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220 FindClose (d->hnd); |
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221 free (d); |
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222 } |
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223 |
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224 struct direct * |
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225 readdir (DIR *d) |
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226 { |
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227 if (! d->dirty) |
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228 { |
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229 if (! FindNextFile(d->hnd, &(d->fd))) |
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230 return 0; |
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231 } |
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232 d->d.d_name = d->fd.cFileName; |
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233 d->dirty = 0; |
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234 return &(d->d); |
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235 } |
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236 |
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237 #endif |
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238 |
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239 /* |
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240 ;;; Local Variables: *** |
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241 ;;; mode: C++ *** |
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242 ;;; End: *** |
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243 */ |
