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comparison liboctave/system/file-ops.cc @ 21733:cb0fdd941d84

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use namespace for system file_ops class * file-ops.h, file-ops.cc: Put file_ops class and related functions in octave::sys:: namespace. Change all uses.
author John W. Eaton <jwe@octave.org>
date Thu, 19 May 2016 00:33:18 -0400
parents 6a1eded90355
children 11af9c03400c
comparison
equal deleted inserted replaced
21732:6a1eded90355 21733:cb0fdd941d84
56 56
57 #if (defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM)) 57 #if (defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM))
58 # include <algorithm> 58 # include <algorithm>
59 #endif 59 #endif
60 60
61 file_ops *file_ops::instance = 0; 61 namespace
62 62 octave
63 bool
64 file_ops::instance_ok (void)
65 { 63 {
66 bool retval = true; 64 namespace
67 65 sys
68 if (! instance) 66 {
69 { 67 file_ops *octave::sys::file_ops::instance = 0;
68
69 bool
70 octave::sys::file_ops::instance_ok (void)
71 {
72 bool retval = true;
73
74 if (! instance)
75 {
70 #if (defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM)) 76 #if (defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM))
71 char system_dir_sep_char = '\\'; 77 char system_dir_sep_char = '\\';
72 std::string system_dir_sep_str = "\\"; 78 std::string system_dir_sep_str = "\\";
73 #else 79 #else
74 char system_dir_sep_char = '/'; 80 char system_dir_sep_char = '/';
75 std::string system_dir_sep_str = "/"; 81 std::string system_dir_sep_str = "/";
76 #endif 82 #endif
77 #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) 83 #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM)
78 std::string system_dir_sep_chars = "/\\"; 84 std::string system_dir_sep_chars = "/\\";
79 #else 85 #else
80 std::string system_dir_sep_chars = system_dir_sep_str; 86 std::string system_dir_sep_chars = system_dir_sep_str;
81 #endif 87 #endif
82 88
83 instance = new file_ops (system_dir_sep_char, system_dir_sep_str, 89 instance = new file_ops (system_dir_sep_char, system_dir_sep_str,
84 system_dir_sep_chars); 90 system_dir_sep_chars);
85 91
86 if (instance) 92 if (instance)
87 singleton_cleanup_list::add (cleanup_instance); 93 singleton_cleanup_list::add (cleanup_instance);
88 } 94 }
89 95
90 if (! instance) 96 if (! instance)
91 (*current_liboctave_error_handler) 97 (*current_liboctave_error_handler)
92 ("unable to create file_ops object!"); 98 ("unable to create file_ops object!");
93 99
94 return retval; 100 return retval;
95 } 101 }
96 102
97 // The following tilde-expansion code was stolen and adapted from 103 // The following tilde-expansion code was stolen and adapted from
98 // readline. 104 // readline.
99 105
100 // The default value of tilde_additional_prefixes. This is set to 106 // The default value of tilde_additional_prefixes. This is set to
101 // whitespace preceding a tilde so that simple programs which do not 107 // whitespace preceding a tilde so that simple programs which do not
102 // perform any word separation get desired behavior. 108 // perform any word separation get desired behavior.
103 static const char *default_prefixes[] = { " ~", "\t~", ":~", 0 }; 109 static const char *default_prefixes[] = { " ~", "\t~", ":~", 0 };
104 110
105 // The default value of tilde_additional_suffixes. This is set to 111 // The default value of tilde_additional_suffixes. This is set to
106 // whitespace or newline so that simple programs which do not perform 112 // whitespace or newline so that simple programs which do not perform
107 // any word separation get desired behavior. 113 // any word separation get desired behavior.
108 static const char *default_suffixes[] = { " ", "\n", ":", 0 }; 114 static const char *default_suffixes[] = { " ", "\n", ":", 0 };
109 115
110 // If non-null, this contains the address of a function that the 116 // If non-null, this contains the address of a function that the
111 // application wants called before trying the standard tilde 117 // application wants called before trying the standard tilde
112 // expansions. The function is called with the text sans tilde, and 118 // expansions. The function is called with the text sans tilde, and
113 // returns a malloc()'ed string which is the expansion, or a NULL 119 // returns a malloc()'ed string which is the expansion, or a NULL
114 // pointer if the expansion fails. 120 // pointer if the expansion fails.
115 file_ops::tilde_expansion_hook file_ops::tilde_expansion_preexpansion_hook = 0; 121 octave::sys::file_ops::tilde_expansion_hook octave::sys::file_ops::tilde_expansion_preexpansion_hook = 0;
116 122
117 // If non-null, this contains the address of a function to call if the 123 // If non-null, this contains the address of a function to call if the
118 // standard meaning for expanding a tilde fails. The function is 124 // standard meaning for expanding a tilde fails. The function is
119 // called with the text (sans tilde, as in "foo"), and returns a 125 // called with the text (sans tilde, as in "foo"), and returns a
120 // malloc()'ed string which is the expansion, or a NULL pointer if 126 // malloc()'ed string which is the expansion, or a NULL pointer if
121 // there is no expansion. 127 // there is no expansion.
122 file_ops::tilde_expansion_hook file_ops::tilde_expansion_failure_hook = 0; 128 octave::sys::file_ops::tilde_expansion_hook octave::sys::file_ops::tilde_expansion_failure_hook = 0;
123 129
124 // When non-null, this is a NULL terminated array of strings which are 130 // When non-null, this is a NULL terminated array of strings which are
125 // duplicates for a tilde prefix. Bash uses this to expand '=~' and 131 // duplicates for a tilde prefix. Bash uses this to expand '=~' and
126 // ':~'. 132 // ':~'.
127 string_vector file_ops::tilde_additional_prefixes = default_prefixes; 133 string_vector octave::sys::file_ops::tilde_additional_prefixes = default_prefixes;
128 134
129 // When non-null, this is a NULL terminated array of strings which 135 // When non-null, this is a NULL terminated array of strings which
130 // match the end of a username, instead of just "/". Bash sets this 136 // match the end of a username, instead of just "/". Bash sets this
131 // to ':' and '=~'. 137 // to ':' and '=~'.
132 string_vector file_ops::tilde_additional_suffixes = default_suffixes; 138 string_vector octave::sys::file_ops::tilde_additional_suffixes = default_suffixes;
133 139
134 // Find the start of a tilde expansion in S, and return the index 140 // Find the start of a tilde expansion in S, and return the index
135 // of the tilde which starts the expansion. Place the length of the 141 // of the tilde which starts the expansion. Place the length of the
136 // text which identified this tilde starter in LEN, excluding the 142 // text which identified this tilde starter in LEN, excluding the
137 // tilde itself. 143 // tilde itself.
138 144
139 static size_t 145 static size_t
140 tilde_find_prefix (const std::string& s, size_t& len) 146 tilde_find_prefix (const std::string& s, size_t& len)
141 { 147 {
142 len = 0; 148 len = 0;
143 149
144 size_t s_len = s.length (); 150 size_t s_len = s.length ();
145 151
146 if (s_len == 0 || s[0] == '~') 152 if (s_len == 0 || s[0] == '~')
147 return 0; 153 return 0;
148 154
149 string_vector prefixes = file_ops::tilde_additional_prefixes; 155 string_vector prefixes = octave::sys::file_ops::tilde_additional_prefixes;
150 156
151 if (! prefixes.empty ()) 157 if (! prefixes.empty ())
152 { 158 {
153 for (size_t i = 0; i < s_len; i++) 159 for (size_t i = 0; i < s_len; i++)
154 {
155 for (int j = 0; j < prefixes.numel (); j++)
156 { 160 {
157 size_t pfx_len = prefixes[j].length (); 161 for (int j = 0; j < prefixes.numel (); j++)
158
159 if (prefixes[j] == s.substr (i, pfx_len))
160 { 162 {
161 len = pfx_len - 1; 163 size_t pfx_len = prefixes[j].length ();
162 return i + len; 164
165 if (prefixes[j] == s.substr (i, pfx_len))
166 {
167 len = pfx_len - 1;
168 return i + len;
169 }
163 } 170 }
164 } 171 }
165 } 172 }
166 } 173
167 174 return s_len;
168 return s_len; 175 }
169 } 176
170 177 // Find the end of a tilde expansion in S, and return the index
171 // Find the end of a tilde expansion in S, and return the index 178 // of the character which ends the tilde definition.
172 // of the character which ends the tilde definition. 179
173 180 static size_t
174 static size_t 181 tilde_find_suffix (const std::string& s)
175 tilde_find_suffix (const std::string& s) 182 {
176 { 183 size_t s_len = s.length ();
177 size_t s_len = s.length (); 184
178 185 string_vector suffixes = octave::sys::file_ops::tilde_additional_suffixes;
179 string_vector suffixes = file_ops::tilde_additional_suffixes; 186
180 187 size_t i = 0;
181 size_t i = 0; 188
182 189 for ( ; i < s_len; i++)
183 for ( ; i < s_len; i++) 190 {
184 { 191 if (octave::sys::file_ops::is_dir_sep (s[i]))
185 if (file_ops::is_dir_sep (s[i])) 192 break;
186 break; 193
187 194 if (! suffixes.empty ())
188 if (! suffixes.empty ())
189 {
190 for (int j = 0; j < suffixes.numel (); j++)
191 { 195 {
192 size_t sfx_len = suffixes[j].length (); 196 for (int j = 0; j < suffixes.numel (); j++)
193 197 {
194 if (suffixes[j] == s.substr (i, sfx_len)) 198 size_t sfx_len = suffixes[j].length ();
195 return i; 199
200 if (suffixes[j] == s.substr (i, sfx_len))
201 return i;
202 }
196 } 203 }
197 } 204 }
198 } 205
199 206 return i;
200 return i; 207 }
201 } 208
202 209 // Take FNAME and return the tilde prefix we want expanded.
203 // Take FNAME and return the tilde prefix we want expanded. 210
204 211 static std::string
205 static std::string 212 isolate_tilde_prefix (const std::string& fname)
206 isolate_tilde_prefix (const std::string& fname) 213 {
207 { 214 size_t f_len = fname.length ();
208 size_t f_len = fname.length (); 215
209 216 size_t len = 1;
210 size_t len = 1; 217
211 218 while (len < f_len && ! octave::sys::file_ops::is_dir_sep (fname[len]))
212 while (len < f_len && ! file_ops::is_dir_sep (fname[len])) 219 len++;
213 len++; 220
214 221 return fname.substr (1, len);
215 return fname.substr (1, len); 222 }
216 } 223
217 224 // Do the work of tilde expansion on FILENAME. FILENAME starts with a
218 // Do the work of tilde expansion on FILENAME. FILENAME starts with a 225 // tilde.
219 // tilde. 226
220 227 static std::string
221 static std::string 228 tilde_expand_word (const std::string& filename)
222 tilde_expand_word (const std::string& filename) 229 {
223 { 230 size_t f_len = filename.length ();
224 size_t f_len = filename.length (); 231
225 232 if (f_len == 0 || filename[0] != '~')
226 if (f_len == 0 || filename[0] != '~') 233 return filename;
227 return filename; 234
228 235 // A leading '~/' or a bare '~' is *always* translated to the value
229 // A leading '~/' or a bare '~' is *always* translated to the value 236 // of $HOME or the home directory of the current user, regardless of
230 // of $HOME or the home directory of the current user, regardless of 237 // any preexpansion hook.
231 // any preexpansion hook. 238
232 239 if (f_len == 1 || octave::sys::file_ops::is_dir_sep (filename[1]))
233 if (f_len == 1 || file_ops::is_dir_sep (filename[1])) 240 return octave::sys::env::get_home_directory () + filename.substr (1);
234 return octave::sys::env::get_home_directory () + filename.substr (1); 241
235 242 std::string username = isolate_tilde_prefix (filename);
236 std::string username = isolate_tilde_prefix (filename); 243
237 244 size_t user_len = username.length ();
238 size_t user_len = username.length (); 245
239 246 std::string dirname;
240 std::string dirname; 247
241 248 if (octave::sys::file_ops::tilde_expansion_preexpansion_hook)
242 if (file_ops::tilde_expansion_preexpansion_hook)
243 {
244 std::string expansion
245 = file_ops::tilde_expansion_preexpansion_hook (username);
246
247 if (! expansion.empty ())
248 return expansion + filename.substr (user_len+1);
249 }
250
251 // No preexpansion hook, or the preexpansion hook failed. Look in the
252 // password database.
253
254 octave::sys::password pw = octave::sys::password::getpwnam (username);
255
256 if (! pw)
257 {
258 // If the calling program has a special syntax for expanding tildes,
259 // and we couldn't find a standard expansion, then let them try.
260
261 if (file_ops::tilde_expansion_failure_hook)
262 { 249 {
263 std::string expansion 250 std::string expansion
264 = file_ops::tilde_expansion_failure_hook (username); 251 = octave::sys::file_ops::tilde_expansion_preexpansion_hook (username);
265 252
266 if (! expansion.empty ()) 253 if (! expansion.empty ())
267 dirname = expansion + filename.substr (user_len+1); 254 return expansion + filename.substr (user_len+1);
268 } 255 }
269 256
270 // If we don't have a failure hook, or if the failure hook did not 257 // No preexpansion hook, or the preexpansion hook failed. Look in the
271 // expand the tilde, return a copy of what we were passed. 258 // password database.
272 259
273 if (dirname.length () == 0) 260 octave::sys::password pw = octave::sys::password::getpwnam (username);
274 dirname = filename; 261
275 } 262 if (! pw)
276 else 263 {
277 dirname = pw.dir () + filename.substr (user_len+1); 264 // If the calling program has a special syntax for expanding tildes,
278 265 // and we couldn't find a standard expansion, then let them try.
279 return dirname; 266
280 } 267 if (octave::sys::file_ops::tilde_expansion_failure_hook)
281
282 // If NAME has a leading ~ or ~user, Unix-style, expand it to the
283 // user's home directory. If no ~, or no <pwd.h>, just return NAME.
284
285 std::string
286 file_ops::tilde_expand (const std::string& name)
287 {
288 if (name.find ('~') == std::string::npos)
289 return name;
290 else
291 {
292 std::string result;
293
294 size_t name_len = name.length ();
295
296 // Scan through S expanding tildes as we come to them.
297
298 size_t pos = 0;
299
300 while (1)
301 {
302 if (pos > name_len)
303 break;
304
305 size_t len;
306
307 // Make START point to the tilde which starts the expansion.
308
309 size_t start = tilde_find_prefix (name.substr (pos), len);
310
311 result.append (name.substr (pos, start));
312
313 // Advance STRING to the starting tilde.
314
315 pos += start;
316
317 // Make FINI be the index of one after the last character of the
318 // username.
319
320 size_t fini = tilde_find_suffix (name.substr (pos));
321
322 // If both START and FINI are zero, we are all done.
323
324 if (! (start || fini))
325 break;
326
327 // Expand the entire tilde word, and copy it into RESULT.
328
329 std::string tilde_word = name.substr (pos, fini);
330
331 pos += fini;
332
333 std::string expansion = tilde_expand_word (tilde_word);
334
335 result.append (expansion);
336 }
337
338 return result;
339 }
340 }
341
342 // A vector version of the above.
343
344 string_vector
345 file_ops::tilde_expand (const string_vector& names)
346 {
347 string_vector retval;
348
349 int n = names.numel ();
350
351 retval.resize (n);
352
353 for (int i = 0; i < n; i++)
354 retval[i] = tilde_expand (names[i]);
355
356 return retval;
357 }
358
359 std::string
360 file_ops::concat (const std::string& dir, const std::string& file)
361 {
362 return dir.empty ()
363 ? file
364 : (is_dir_sep (dir[dir.length ()-1])
365 ? dir + file
366 : dir + dir_sep_char () + file);
367 }
368
369 std::string
370 file_ops::native_separator_path (const std::string& path)
371 {
372 std::string retval;
373
374 if (dir_sep_char () == '/')
375 retval = path;
376 else
377 {
378 size_t n = path.length ();
379 for (size_t i = 0; i < n; i++)
380 {
381 if (path[i] == '/')
382 retval += dir_sep_char();
383 else
384 retval += path[i];
385 }
386 }
387
388 return retval;
389 }
390
391 int
392 octave_mkdir (const std::string& nm, mode_t md)
393 {
394 std::string msg;
395 return octave_mkdir (nm, md, msg);
396 }
397
398 int
399 octave_mkdir (const std::string& name, mode_t mode, std::string& msg)
400 {
401 msg = "";
402
403 int status = -1;
404
405 status = gnulib::mkdir (name.c_str (), mode);
406
407 if (status < 0)
408 msg = gnulib::strerror (errno);
409
410 return status;
411 }
412
413 int
414 octave_mkfifo (const std::string& nm, mode_t md)
415 {
416 std::string msg;
417 return octave_mkfifo (nm, md, msg);
418 }
419
420 int
421 octave_mkfifo (const std::string& name, mode_t mode, std::string& msg)
422 {
423 msg = "";
424
425 int status = -1;
426
427 // With gnulib we will always have mkfifo, but some systems like MinGW
428 // don't have working mkfifo functions. On those systems, mkfifo will
429 // always return -1 and set errno.
430
431 status = gnulib::mkfifo (name.c_str (), mode);
432
433 if (status < 0)
434 msg = gnulib::strerror (errno);
435
436 return status;
437 }
438
439 int
440 octave_link (const std::string& old_name, const std::string& new_name)
441 {
442 std::string msg;
443 return octave_link (old_name, new_name, msg);
444 }
445
446 int
447 octave_link (const std::string& old_name,
448 const std::string& new_name, std::string& msg)
449 {
450 msg = "";
451
452 int status = -1;
453
454 status = gnulib::link (old_name.c_str (), new_name.c_str ());
455
456 if (status < 0)
457 msg = gnulib::strerror (errno);
458
459 return status;
460 }
461
462 int
463 octave_symlink (const std::string& old_name, const std::string& new_name)
464 {
465 std::string msg;
466 return octave_symlink (old_name, new_name, msg);
467 }
468
469 int
470 octave_symlink (const std::string& old_name,
471 const std::string& new_name, std::string& msg)
472 {
473 msg = "";
474
475 int status = -1;
476
477 status = gnulib::symlink (old_name.c_str (), new_name.c_str ());
478
479 if (status < 0)
480 msg = gnulib::strerror (errno);
481
482 return status;
483 }
484
485 int
486 octave_readlink (const std::string& path, std::string& result)
487 {
488 std::string msg;
489 return octave_readlink (path, result, msg);
490 }
491
492 int
493 octave_readlink (const std::string& path, std::string& result,
494 std::string& msg)
495 {
496 int status = -1;
497
498 msg = "";
499
500 char buf[MAXPATHLEN+1];
501
502 status = gnulib::readlink (path.c_str (), buf, MAXPATHLEN);
503
504 if (status < 0)
505 msg = gnulib::strerror (errno);
506 else
507 {
508 buf[status] = '\0';
509 result = std::string (buf);
510 status = 0;
511 }
512
513 return status;
514 }
515
516 int
517 octave_rename (const std::string& from, const std::string& to)
518 {
519 std::string msg;
520 return octave_rename (from, to, msg);
521 }
522
523 int
524 octave_rename (const std::string& from, const std::string& to,
525 std::string& msg)
526 {
527 int status = -1;
528
529 msg = "";
530
531 status = gnulib::rename (from.c_str (), to.c_str ());
532
533 if (status < 0)
534 msg = gnulib::strerror (errno);
535
536 return status;
537 }
538
539 int
540 octave_rmdir (const std::string& name)
541 {
542 std::string msg;
543 return octave_rmdir (name, msg);
544 }
545
546 int
547 octave_rmdir (const std::string& name, std::string& msg)
548 {
549 msg = "";
550
551 int status = -1;
552
553 status = gnulib::rmdir (name.c_str ());
554
555 if (status < 0)
556 msg = gnulib::strerror (errno);
557
558 return status;
559 }
560
561 // And a version that works recursively.
562
563 int
564 octave_recursive_rmdir (const std::string& name)
565 {
566 std::string msg;
567 return octave_recursive_rmdir (name, msg);
568 }
569
570 int
571 octave_recursive_rmdir (const std::string& name, std::string& msg)
572 {
573 msg = "";
574
575 int status = 0;
576
577 dir_entry dir (name);
578
579 if (dir)
580 {
581 string_vector dirlist = dir.read ();
582
583 for (octave_idx_type i = 0; i < dirlist.numel (); i++)
584 {
585 octave_quit ();
586
587 std::string nm = dirlist[i];
588
589 // Skip current directory and parent.
590 if (nm == "." || nm == "..")
591 continue;
592
593 std::string fullnm = name + file_ops::dir_sep_str () + nm;
594
595 // Get info about the file. Don't follow links.
596 file_stat fs (fullnm, false);
597
598 if (fs)
599 { 268 {
600 if (fs.is_dir ()) 269 std::string expansion
270 = octave::sys::file_ops::tilde_expansion_failure_hook (username);
271
272 if (! expansion.empty ())
273 dirname = expansion + filename.substr (user_len+1);
274 }
275
276 // If we don't have a failure hook, or if the failure hook did not
277 // expand the tilde, return a copy of what we were passed.
278
279 if (dirname.length () == 0)
280 dirname = filename;
281 }
282 else
283 dirname = pw.dir () + filename.substr (user_len+1);
284
285 return dirname;
286 }
287
288 // If NAME has a leading ~ or ~user, Unix-style, expand it to the
289 // user's home directory. If no ~, or no <pwd.h>, just return NAME.
290
291 std::string
292 octave::sys::file_ops::tilde_expand (const std::string& name)
293 {
294 if (name.find ('~') == std::string::npos)
295 return name;
296 else
297 {
298 std::string result;
299
300 size_t name_len = name.length ();
301
302 // Scan through S expanding tildes as we come to them.
303
304 size_t pos = 0;
305
306 while (1)
307 {
308 if (pos > name_len)
309 break;
310
311 size_t len;
312
313 // Make START point to the tilde which starts the expansion.
314
315 size_t start = tilde_find_prefix (name.substr (pos), len);
316
317 result.append (name.substr (pos, start));
318
319 // Advance STRING to the starting tilde.
320
321 pos += start;
322
323 // Make FINI be the index of one after the last character of the
324 // username.
325
326 size_t fini = tilde_find_suffix (name.substr (pos));
327
328 // If both START and FINI are zero, we are all done.
329
330 if (! (start || fini))
331 break;
332
333 // Expand the entire tilde word, and copy it into RESULT.
334
335 std::string tilde_word = name.substr (pos, fini);
336
337 pos += fini;
338
339 std::string expansion = tilde_expand_word (tilde_word);
340
341 result.append (expansion);
342 }
343
344 return result;
345 }
346 }
347
348 // A vector version of the above.
349
350 string_vector
351 octave::sys::file_ops::tilde_expand (const string_vector& names)
352 {
353 string_vector retval;
354
355 int n = names.numel ();
356
357 retval.resize (n);
358
359 for (int i = 0; i < n; i++)
360 retval[i] = tilde_expand (names[i]);
361
362 return retval;
363 }
364
365 std::string
366 octave::sys::file_ops::concat (const std::string& dir, const std::string& file)
367 {
368 return dir.empty ()
369 ? file
370 : (is_dir_sep (dir[dir.length ()-1])
371 ? dir + file
372 : dir + dir_sep_char () + file);
373 }
374
375 std::string
376 octave::sys::file_ops::native_separator_path (const std::string& path)
377 {
378 std::string retval;
379
380 if (dir_sep_char () == '/')
381 retval = path;
382 else
383 {
384 size_t n = path.length ();
385 for (size_t i = 0; i < n; i++)
386 {
387 if (path[i] == '/')
388 retval += dir_sep_char();
389 else
390 retval += path[i];
391 }
392 }
393
394 return retval;
395 }
396
397 int
398 mkdir (const std::string& nm, mode_t md)
399 {
400 std::string msg;
401 return octave::sys::mkdir (nm, md, msg);
402 }
403
404 int
405 mkdir (const std::string& name, mode_t mode, std::string& msg)
406 {
407 msg = "";
408
409 int status = -1;
410
411 status = gnulib::mkdir (name.c_str (), mode);
412
413 if (status < 0)
414 msg = gnulib::strerror (errno);
415
416 return status;
417 }
418
419 int
420 mkfifo (const std::string& nm, mode_t md)
421 {
422 std::string msg;
423 return mkfifo (nm, md, msg);
424 }
425
426 int
427 mkfifo (const std::string& name, mode_t mode, std::string& msg)
428 {
429 msg = "";
430
431 int status = -1;
432
433 // With gnulib we will always have mkfifo, but some systems like MinGW
434 // don't have working mkfifo functions. On those systems, mkfifo will
435 // always return -1 and set errno.
436
437 status = gnulib::mkfifo (name.c_str (), mode);
438
439 if (status < 0)
440 msg = gnulib::strerror (errno);
441
442 return status;
443 }
444
445 int
446 link (const std::string& old_name, const std::string& new_name)
447 {
448 std::string msg;
449 return link (old_name, new_name, msg);
450 }
451
452 int
453 link (const std::string& old_name, const std::string& new_name,
454 std::string& msg)
455 {
456 msg = "";
457
458 int status = -1;
459
460 status = gnulib::link (old_name.c_str (), new_name.c_str ());
461
462 if (status < 0)
463 msg = gnulib::strerror (errno);
464
465 return status;
466 }
467
468 int
469 symlink (const std::string& old_name, const std::string& new_name)
470 {
471 std::string msg;
472 return symlink (old_name, new_name, msg);
473 }
474
475 int
476 symlink (const std::string& old_name,
477 const std::string& new_name, std::string& msg)
478 {
479 msg = "";
480
481 int status = -1;
482
483 status = gnulib::symlink (old_name.c_str (), new_name.c_str ());
484
485 if (status < 0)
486 msg = gnulib::strerror (errno);
487
488 return status;
489 }
490
491 int
492 readlink (const std::string& path, std::string& result)
493 {
494 std::string msg;
495 return readlink (path, result, msg);
496 }
497
498 int
499 readlink (const std::string& path, std::string& result, std::string& msg)
500 {
501 int status = -1;
502
503 msg = "";
504
505 char buf[MAXPATHLEN+1];
506
507 status = gnulib::readlink (path.c_str (), buf, MAXPATHLEN);
508
509 if (status < 0)
510 msg = gnulib::strerror (errno);
511 else
512 {
513 buf[status] = '\0';
514 result = std::string (buf);
515 status = 0;
516 }
517
518 return status;
519 }
520
521 int
522 rename (const std::string& from, const std::string& to)
523 {
524 std::string msg;
525 return rename (from, to, msg);
526 }
527
528 int
529 rename (const std::string& from, const std::string& to, std::string& msg)
530 {
531 int status = -1;
532
533 msg = "";
534
535 status = gnulib::rename (from.c_str (), to.c_str ());
536
537 if (status < 0)
538 msg = gnulib::strerror (errno);
539
540 return status;
541 }
542
543 int
544 rmdir (const std::string& name)
545 {
546 std::string msg;
547 return rmdir (name, msg);
548 }
549
550 int
551 rmdir (const std::string& name, std::string& msg)
552 {
553 msg = "";
554
555 int status = -1;
556
557 status = gnulib::rmdir (name.c_str ());
558
559 if (status < 0)
560 msg = gnulib::strerror (errno);
561
562 return status;
563 }
564
565 // And a version that works recursively.
566
567 int
568 recursive_rmdir (const std::string& name)
569 {
570 std::string msg;
571 return recursive_rmdir (name, msg);
572 }
573
574 int
575 recursive_rmdir (const std::string& name, std::string& msg)
576 {
577 msg = "";
578
579 int status = 0;
580
581 dir_entry dir (name);
582
583 if (dir)
584 {
585 string_vector dirlist = dir.read ();
586
587 for (octave_idx_type i = 0; i < dirlist.numel (); i++)
588 {
589 octave_quit ();
590
591 std::string nm = dirlist[i];
592
593 // Skip current directory and parent.
594 if (nm == "." || nm == "..")
595 continue;
596
597 std::string fullnm = name + octave::sys::file_ops::dir_sep_str () + nm;
598
599 // Get info about the file. Don't follow links.
600 file_stat fs (fullnm, false);
601
602 if (fs)
601 { 603 {
602 status = octave_recursive_rmdir (fullnm, msg); 604 if (fs.is_dir ())
603 605 {
604 if (status < 0) 606 status = recursive_rmdir (fullnm, msg);
605 break; 607
608 if (status < 0)
609 break;
610 }
611 else
612 {
613 status = unlink (fullnm, msg);
614
615 if (status < 0)
616 break;
617 }
606 } 618 }
607 else 619 else
608 { 620 {
609 status = octave_unlink (fullnm, msg); 621 msg = fs.error ();
610 622 break;
611 if (status < 0)
612 break;
613 } 623 }
614 } 624 }
615 else 625
626 if (status >= 0)
616 { 627 {
617 msg = fs.error (); 628 dir.close ();
618 break; 629 status = rmdir (name, msg);
619 } 630 }
620 } 631 }
621 632 else
622 if (status >= 0) 633 {
623 { 634 status = -1;
624 dir.close (); 635
625 status = octave_rmdir (name, msg); 636 msg = dir.error ();
626 } 637 }
627 } 638
628 else 639 return status;
629 { 640 }
630 status = -1; 641
631 642 int
632 msg = dir.error (); 643 umask (mode_t mode)
633 } 644 {
634 645 #if defined (HAVE_UMASK)
635 return status; 646 return umask (mode);
647 #else
648 return 0;
649 #endif
650 }
651
652 int
653 unlink (const std::string& name)
654 {
655 std::string msg;
656 return unlink (name, msg);
657 }
658
659 int
660 unlink (const std::string& name, std::string& msg)
661 {
662 msg = "";
663
664 int status = -1;
665
666 status = gnulib::unlink (name.c_str ());
667
668 if (status < 0)
669 msg = gnulib::strerror (errno);
670
671 return status;
672 }
673
674 std::string
675 tempnam (const std::string& dir, const std::string& pfx)
676 {
677 std::string msg;
678 return tempnam (dir, pfx, msg);
679 }
680
681 std::string
682 tempnam (const std::string& dir, const std::string& pfx,
683 std::string& msg)
684 {
685 msg = "";
686
687 std::string retval;
688
689 // get dir path to use for template
690 std::string templatename;
691 if (dir.empty ())
692 templatename = octave::sys::env::get_temp_directory ();
693 else if (! file_stat (dir, false).is_dir ())
694 templatename = octave::sys::env::get_temp_directory ();
695 else
696 templatename = dir;
697
698 // add dir sep char if it is not there
699 if (*templatename.rbegin () != octave::sys::file_ops::dir_sep_char ())
700 templatename += octave::sys::file_ops::dir_sep_char ();
701
702 if (pfx.empty ())
703 templatename += "file";
704 else
705 templatename += pfx;
706
707 // add the required XXXXXX for the template
708 templatename += "XXXXXX";
709
710 // create and copy template to char array for call to gen_tempname
711 char tname [templatename.length () + 1];
712
713 strcpy (tname, templatename.c_str ());
714
715 if (gen_tempname (tname, 0, 0, GT_NOCREATE) == -1)
716 msg = gnulib::strerror (errno);
717 else
718 retval = tname;
719
720 return retval;
721 }
722
723 std::string
724 canonicalize_file_name (const std::string& name)
725 {
726 std::string msg;
727 return canonicalize_file_name (name, msg);
728 }
729
730 std::string
731 canonicalize_file_name (const std::string& name, std::string& msg)
732 {
733 msg = "";
734
735 std::string retval;
736
737 char *tmp = gnulib::canonicalize_file_name (name.c_str ());
738
739 if (tmp)
740 {
741 retval = tmp;
742 free (tmp);
743 }
744
745 #if (defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM))
746 // Canonical Windows file separator is backslash.
747 std::replace (retval.begin (), retval.end (), '/', '\\');
748 #endif
749
750 if (retval.empty ())
751 msg = gnulib::strerror (errno);
752
753 return retval;
754 }
755 }
636 } 756 }
637
638 int
639 octave_umask (mode_t mode)
640 {
641 #if defined (HAVE_UMASK)
642 return umask (mode);
643 #else
644 return 0;
645 #endif
646 }
647
648 int
649 octave_unlink (const std::string& name)
650 {
651 std::string msg;
652 return octave_unlink (name, msg);
653 }
654
655 int
656 octave_unlink (const std::string& name, std::string& msg)
657 {
658 msg = "";
659
660 int status = -1;
661
662 status = gnulib::unlink (name.c_str ());
663
664 if (status < 0)
665 msg = gnulib::strerror (errno);
666
667 return status;
668 }
669
670 std::string
671 octave_tempnam (const std::string& dir, const std::string& pfx)
672 {
673 std::string msg;
674 return octave_tempnam (dir, pfx, msg);
675 }
676
677 std::string
678 octave_tempnam (const std::string& dir, const std::string& pfx,
679 std::string& msg)
680 {
681 msg = "";
682
683 std::string retval;
684
685 // get dir path to use for template
686 std::string templatename;
687 if (dir.empty ())
688 templatename = octave::sys::env::get_temp_directory ();
689 else if (! file_stat (dir, false).is_dir ())
690 templatename = octave::sys::env::get_temp_directory ();
691 else
692 templatename = dir;
693
694 // add dir sep char if it is not there
695 if (*templatename.rbegin () != file_ops::dir_sep_char ())
696 templatename += file_ops::dir_sep_char ();
697
698 if (pfx.empty ())
699 templatename += "file";
700 else
701 templatename += pfx;
702
703 // add the required XXXXXX for the template
704 templatename += "XXXXXX";
705
706 // create and copy template to char array for call to gen_tempname
707 char tname [templatename.length () + 1];
708
709 strcpy (tname, templatename.c_str ());
710
711 if (gen_tempname (tname, 0, 0, GT_NOCREATE) == -1)
712 msg = gnulib::strerror (errno);
713 else
714 retval = tname;
715
716 return retval;
717 }
718
719 std::string
720 octave_canonicalize_file_name (const std::string& name)
721 {
722 std::string msg;
723 return octave_canonicalize_file_name (name, msg);
724 }
725
726 std::string
727 octave_canonicalize_file_name (const std::string& name, std::string& msg)
728 {
729 msg = "";
730
731 std::string retval;
732
733 char *tmp = gnulib::canonicalize_file_name (name.c_str ());
734
735 if (tmp)
736 {
737 retval = tmp;
738 free (tmp);
739 }
740
741 #if (defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM))
742 // Canonical Windows file separator is backslash.
743 std::replace (retval.begin (), retval.end (), '/', '\\');
744 #endif
745
746 if (retval.empty ())
747 msg = gnulib::strerror (errno);
748
749 return retval;
750 }
751