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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 #include <vector> |
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31 |
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32 #ifdef HAVE_UNISTD_H |
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33 #ifdef HAVE_SYS_TYPES_H |
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34 #include <sys/types.h> |
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35 #endif |
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36 #include <unistd.h> |
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37 #endif |
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38 |
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39 #ifdef HAVE_FCNTL_H |
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40 #include <fcntl.h> |
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41 #endif |
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42 |
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43 #include "file-ops.h" |
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44 #include "lo-error.h" |
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45 #include "pathlen.h" |
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46 #include "lo-sysdep.h" |
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47 #include "str-vec.h" |
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48 |
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49 std::string |
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50 octave_getcwd (void) |
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51 { |
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52 std::string retval; |
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53 |
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54 char buf[MAXPATHLEN]; |
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55 |
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56 char *tmp = 0; |
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57 |
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58 #if defined (__EMX__) |
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59 tmp = _getcwd2 (buf, MAXPATHLEN); |
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60 #elif defined (HAVE_GETCWD) |
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61 tmp = getcwd (buf, MAXPATHLEN); |
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62 #elif defined (HAVE_GETWD) |
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63 tmp = getwd (buf); |
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64 #endif |
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65 |
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66 if (tmp) |
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67 retval = tmp; |
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68 else |
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69 (*current_liboctave_error_handler) ("unable to find current directory"); |
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70 |
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71 return retval; |
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72 } |
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73 |
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74 int |
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75 octave_chdir (const std::string& path_arg) |
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76 { |
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77 std::string path = file_ops::tilde_expand (path_arg); |
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78 |
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79 #if defined (__EMX__) |
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80 int retval = -1; |
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81 |
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82 char *tmp_path = strsave (path.c_str ()); |
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83 |
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84 if (path.length () == 2 && path[1] == ':') |
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85 { |
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86 char *upper_case_dir_name = strupr (tmp_path); |
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87 _chdrive (upper_case_dir_name[0]); |
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88 if (_getdrive () == upper_case_dir_name[0]) |
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89 retval = _chdir2 ("/"); |
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90 } |
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91 else |
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92 retval = _chdir2 (tmp_path); |
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93 |
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94 delete [] tmp_path; |
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95 |
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96 return retval; |
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97 #else |
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98 |
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99 #if defined (__WIN32__) && ! defined (__CYGWIN__) |
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100 if (path.length() == 2 && path[1] == ':') |
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101 path += "\\"; |
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102 #endif |
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103 |
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104 return chdir (path.c_str ()); |
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105 #endif |
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106 } |
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107 |
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108 #if defined (__WIN32__) && ! defined (__CYGWIN__) |
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109 |
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110 pid_t |
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111 octave_popen2 (const std::string& cmd, const string_vector& args, bool sync_mode, |
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112 int *fildes, std::string& msg) |
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113 { |
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114 pid_t pid; |
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115 PROCESS_INFORMATION pi; |
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116 STARTUPINFO si; |
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117 std::string command = "\"" + cmd + "\""; |
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118 HANDLE hProcess = GetCurrentProcess(), childRead, childWrite, parentRead, parentWrite; |
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119 DWORD pipeMode; |
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120 |
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121 ZeroMemory (&pi, sizeof (pi)); |
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122 ZeroMemory (&si, sizeof (si)); |
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123 si.cb = sizeof (si); |
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124 |
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125 if (! CreatePipe (&childRead, &parentWrite, 0, 0) || |
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126 ! DuplicateHandle (hProcess, childRead, hProcess, &childRead, 0, TRUE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE)) |
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127 { |
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128 msg = "popen2: pipe creation failed"; |
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129 return -1; |
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130 } |
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131 if (! CreatePipe (&parentRead, &childWrite, 0, 0) || |
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132 ! DuplicateHandle (hProcess, childWrite, hProcess, &childWrite, 0, TRUE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE)) |
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133 { |
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134 msg = "popen2: pipe creation failed"; |
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135 return -1; |
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136 } |
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137 if (! sync_mode) |
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138 { |
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139 pipeMode = PIPE_NOWAIT; |
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140 SetNamedPipeHandleState (parentRead, &pipeMode, 0, 0); |
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141 SetNamedPipeHandleState (parentWrite, &pipeMode, 0, 0); |
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142 } |
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143 fildes[1] = _open_osfhandle (reinterpret_cast<long> (parentRead), _O_RDONLY | _O_BINARY); |
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144 fildes[0] = _open_osfhandle (reinterpret_cast<long> (parentWrite), _O_WRONLY | _O_BINARY); |
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145 si.dwFlags |= STARTF_USESTDHANDLES; |
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146 si.hStdInput = childRead; |
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147 si.hStdOutput = childWrite; |
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148 |
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149 // Ignore first arg as it is the command |
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150 for (int k=1; k<args.length(); k++) |
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151 command += " \"" + args[k] + "\""; |
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152 OCTAVE_LOCAL_BUFFER (char, c_command, command.length () + 1); |
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153 strcpy (c_command, command.c_str ()); |
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154 if (! CreateProcess (0, c_command, 0, 0, TRUE, 0, 0, 0, &si, &pi)) |
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155 { |
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156 msg = "popen2: process creation failed"; |
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157 return -1; |
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158 } |
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159 pid = pi.dwProcessId; |
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160 |
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161 CloseHandle (childRead); |
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162 CloseHandle (childWrite); |
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163 CloseHandle (pi.hProcess); |
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164 CloseHandle (pi.hThread); |
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165 |
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166 return pid; |
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167 } |
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168 |
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169 #endif |
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170 |
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171 #if defined (_MSC_VER) && ! defined (HAVE_DIRENT_H) |
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172 |
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173 // FIXME -- it would probably be better to adapt the versions of |
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174 // opendir, readdir, and closedir from Emacs as they appear to be more |
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175 // complete implementations (do the functions below work for network |
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176 // paths, for example)? We can probably get along without rewinddir. |
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177 |
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178 #include <windows.h> |
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179 |
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180 struct __DIR |
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181 { |
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182 HANDLE hnd; |
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183 WIN32_FIND_DATA fd; |
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184 int dirty; |
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185 struct direct d; |
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186 const char *current; |
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187 }; |
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188 |
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189 DIR * |
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190 opendir (const char *name) |
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191 { |
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192 DIR *d = static_cast<DIR *> (malloc (sizeof (DIR))); |
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193 static char buffer[MAX_PATH]; |
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194 |
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195 strncpy (buffer, name, MAX_PATH); |
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196 if (buffer[strnlen(buffer, MAX_PATH)-1] != '\\') |
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197 strncat (buffer, "\\*", MAX_PATH); |
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198 else |
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199 strncat (buffer, "*", MAX_PATH); |
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200 d->current = buffer; |
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201 d->hnd = FindFirstFile (buffer, &(d->fd)); |
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202 if (d->hnd == INVALID_HANDLE_VALUE) |
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203 return 0; |
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204 d->dirty = 1; |
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205 return d; |
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206 } |
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207 |
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208 void |
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209 rewinddir (DIR *d) |
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210 { |
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211 if (d->hnd != INVALID_HANDLE_VALUE) |
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212 FindClose (d->hnd); |
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213 d->hnd = FindFirstFile (d->current, &(d->fd)); |
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214 d->dirty = 1; |
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215 } |
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216 |
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217 void |
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218 closedir (DIR *d) |
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219 { |
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220 if (d->hnd != INVALID_HANDLE_VALUE) |
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221 FindClose (d->hnd); |
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222 free (d); |
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223 } |
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224 |
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225 struct direct * |
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226 readdir (DIR *d) |
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227 { |
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228 if (! d->dirty) |
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229 { |
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230 if (! FindNextFile(d->hnd, &(d->fd))) |
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231 return 0; |
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232 } |
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233 d->d.d_name = d->fd.cFileName; |
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234 d->dirty = 0; |
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235 return &(d->d); |
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236 } |
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237 |
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238 #endif |
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239 |
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240 /* |
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241 ;;; Local Variables: *** |
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242 ;;; mode: C++ *** |
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243 ;;; End: *** |
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244 */ |
