Commit | Line | Data |
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a0d0e21e | 1 | package Cwd; |
ea067225 | 2 | $VERSION = $VERSION = '2.17'; |
a0d0e21e | 3 | |
f06db76b AD |
4 | =head1 NAME |
5 | ||
902bacac | 6 | Cwd - get pathname of current working directory |
f06db76b AD |
7 | |
8 | =head1 SYNOPSIS | |
9 | ||
4633a7c4 | 10 | use Cwd; |
04929354 | 11 | my $dir = getcwd; |
4633a7c4 | 12 | |
04929354 MS |
13 | use Cwd 'abs_path'; |
14 | my $abs_path = abs_path($file); | |
f06db76b | 15 | |
04929354 | 16 | =head1 DESCRIPTION |
902bacac | 17 | |
04929354 MS |
18 | This module provides functions for determining the pathname of the |
19 | current working directory. It is recommended that getcwd (or another | |
20 | *cwd() function) be used in I<all> code to ensure portability. | |
f06db76b | 21 | |
04929354 MS |
22 | By default, it exports the functions cwd(), getcwd(), fastcwd(), and |
23 | fastgetcwd() into the caller's namespace. | |
f06db76b | 24 | |
20408e3c | 25 | |
04929354 | 26 | =head2 getcwd and friends |
20408e3c | 27 | |
04929354 MS |
28 | Each of these functions are called without arguments and return the |
29 | absolute path of the current working directory. | |
f06db76b | 30 | |
04929354 MS |
31 | =over 4 |
32 | ||
33 | =item getcwd | |
34 | ||
35 | my $cwd = getcwd(); | |
36 | ||
37 | Returns the current working directory. | |
38 | ||
39 | Re-implements the getcwd(3) (or getwd(3)) functions in Perl. | |
40 | ||
41 | =item cwd | |
42 | ||
43 | my $cwd = cwd(); | |
44 | ||
45 | The cwd() is the most natural form for the current architecture. For | |
46 | most systems it is identical to `pwd` (but without the trailing line | |
47 | terminator). | |
48 | ||
04929354 MS |
49 | =item fastcwd |
50 | ||
51 | my $cwd = fastcwd(); | |
52 | ||
53 | A more dangerous version of getcwd(), but potentially faster. | |
54 | ||
55 | It might conceivably chdir() you out of a directory that it can't | |
56 | chdir() you back into. If fastcwd encounters a problem it will return | |
57 | undef but will probably leave you in a different directory. For a | |
58 | measure of extra security, if everything appears to have worked, the | |
59 | fastcwd() function will check that it leaves you in the same directory | |
60 | that it started in. If it has changed it will C<die> with the message | |
61 | "Unstable directory path, current directory changed | |
62 | unexpectedly". That should never happen. | |
63 | ||
64 | =item fastgetcwd | |
65 | ||
66 | my $cwd = fastgetcwd(); | |
f06db76b | 67 | |
902bacac | 68 | The fastgetcwd() function is provided as a synonym for cwd(). |
fb73857a | 69 | |
04929354 MS |
70 | =back |
71 | ||
902bacac | 72 | |
04929354 MS |
73 | =head2 abs_path and friends |
74 | ||
75 | These functions are exported only on request. They each take a single | |
3ee63918 MS |
76 | argument and return the absolute pathname for it. If no argument is |
77 | given they'll use the current working directory. | |
04929354 MS |
78 | |
79 | =over 4 | |
80 | ||
81 | =item abs_path | |
82 | ||
83 | my $abs_path = abs_path($file); | |
84 | ||
85 | Uses the same algorithm as getcwd(). Symbolic links and relative-path | |
86 | components ("." and "..") are resolved to return the canonical | |
87 | pathname, just like realpath(3). | |
88 | ||
89 | =item realpath | |
90 | ||
91 | my $abs_path = realpath($file); | |
92 | ||
93 | A synonym for abs_path(). | |
94 | ||
95 | =item fast_abs_path | |
96 | ||
510179aa | 97 | my $abs_path = fast_abs_path($file); |
04929354 MS |
98 | |
99 | A more dangerous, but potentially faster version of abs_path. | |
100 | ||
101 | =back | |
102 | ||
103 | =head2 $ENV{PWD} | |
104 | ||
105 | If you ask to override your chdir() built-in function, | |
106 | ||
107 | use Cwd qw(chdir); | |
108 | ||
109 | then your PWD environment variable will be kept up to date. Note that | |
110 | it will only be kept up to date if all packages which use chdir import | |
111 | it from Cwd. | |
4633a7c4 | 112 | |
4633a7c4 | 113 | |
4d6b4052 JH |
114 | =head1 NOTES |
115 | ||
116 | =over 4 | |
117 | ||
118 | =item * | |
119 | ||
04929354 MS |
120 | Since the path seperators are different on some operating systems ('/' |
121 | on Unix, ':' on MacPerl, etc...) we recommend you use the File::Spec | |
122 | modules wherever portability is a concern. | |
123 | ||
04929354 | 124 | =item * |
4d6b4052 JH |
125 | |
126 | Actually, on Mac OS, the C<getcwd()>, C<fastgetcwd()> and C<fastcwd()> | |
127 | functions are all aliases for the C<cwd()> function, which, on Mac OS, | |
128 | calls `pwd`. Likewise, the C<abs_path()> function is an alias for | |
129 | C<fast_abs_path()>. | |
130 | ||
131 | =back | |
132 | ||
02cc4877 NC |
133 | =head1 AUTHOR |
134 | ||
135 | Originally by the perl5-porters. | |
136 | ||
137 | Now maintained by Ken Williams <KWILLIAMS@cpan.org> | |
138 | ||
04929354 MS |
139 | =head1 SEE ALSO |
140 | ||
141 | L<File::chdir> | |
142 | ||
f06db76b AD |
143 | =cut |
144 | ||
b060a406 | 145 | use strict; |
a9939470 | 146 | use Exporter; |
ad78113d | 147 | use vars qw(@ISA @EXPORT @EXPORT_OK); |
96e4d5b1 | 148 | |
a9939470 NC |
149 | @ISA = qw/ Exporter /; |
150 | @EXPORT = qw(cwd getcwd fastcwd fastgetcwd); | |
151 | @EXPORT_OK = qw(chdir abs_path fast_abs_path realpath fast_realpath); | |
a0d0e21e | 152 | |
f5f423e4 IZ |
153 | # sys_cwd may keep the builtin command |
154 | ||
155 | # All the functionality of this module may provided by builtins, | |
156 | # there is no sense to process the rest of the file. | |
157 | # The best choice may be to have this in BEGIN, but how to return from BEGIN? | |
158 | ||
a9939470 | 159 | if ($^O eq 'os2') { |
f5f423e4 | 160 | local $^W = 0; |
a9939470 NC |
161 | |
162 | *cwd = defined &sys_cwd ? \&sys_cwd : \&_os2_cwd; | |
163 | *getcwd = \&cwd; | |
164 | *fastgetcwd = \&cwd; | |
165 | *fastcwd = \&cwd; | |
166 | ||
167 | *fast_abs_path = \&sys_abspath if defined &sys_abspath; | |
168 | *abs_path = \&fast_abs_path; | |
169 | *realpath = \&fast_abs_path; | |
170 | *fast_realpath = \&fast_abs_path; | |
171 | ||
f5f423e4 IZ |
172 | return 1; |
173 | } | |
174 | ||
f22d8e4b DM |
175 | eval { |
176 | require XSLoader; | |
46ba3155 | 177 | local $^W = 0; |
f22d8e4b DM |
178 | XSLoader::load('Cwd'); |
179 | }; | |
4633a7c4 | 180 | |
96e4d5b1 | 181 | |
3547aa9a MS |
182 | # Find the pwd command in the expected locations. We assume these |
183 | # are safe. This prevents _backtick_pwd() consulting $ENV{PATH} | |
184 | # so everything works under taint mode. | |
185 | my $pwd_cmd; | |
889f7a4f RGS |
186 | foreach my $try ('/bin/pwd', |
187 | '/usr/bin/pwd', | |
188 | '/QOpenSys/bin/pwd', # OS/400 PASE. | |
189 | ) { | |
190 | ||
3547aa9a MS |
191 | if( -x $try ) { |
192 | $pwd_cmd = $try; | |
193 | last; | |
194 | } | |
195 | } | |
522b859a | 196 | unless ($pwd_cmd) { |
889f7a4f RGS |
197 | # Isn't this wrong? _backtick_pwd() will fail if somenone has |
198 | # pwd in their path but it is not /bin/pwd or /usr/bin/pwd? | |
199 | # See [perl #16774]. --jhi | |
200 | $pwd_cmd = 'pwd'; | |
522b859a | 201 | } |
3547aa9a | 202 | |
a9939470 NC |
203 | # Lazy-load Carp |
204 | sub _carp { require Carp; Carp::carp(@_) } | |
205 | sub _croak { require Carp; Carp::croak(@_) } | |
206 | ||
3547aa9a | 207 | # The 'natural and safe form' for UNIX (pwd may be setuid root) |
8b88ae92 | 208 | sub _backtick_pwd { |
db281859 | 209 | local @ENV{qw(PATH IFS CDPATH ENV BASH_ENV)}; |
3547aa9a | 210 | my $cwd = `$pwd_cmd`; |
ac3b20cb | 211 | # Belt-and-suspenders in case someone said "undef $/". |
5cf6da5f | 212 | local $/ = "\n"; |
ac3b20cb | 213 | # `pwd` may fail e.g. if the disk is full |
7e03f963 | 214 | chomp($cwd) if defined $cwd; |
4633a7c4 | 215 | $cwd; |
8b88ae92 | 216 | } |
4633a7c4 LW |
217 | |
218 | # Since some ports may predefine cwd internally (e.g., NT) | |
219 | # we take care not to override an existing definition for cwd(). | |
220 | ||
ea54c8bd EC |
221 | unless(defined &cwd) { |
222 | # The pwd command is not available in some chroot(2)'ed environments | |
73b801a6 MS |
223 | if( $^O eq 'MacOS' || (defined $ENV{PATH} && |
224 | grep { -x "$_/pwd" } split(':', $ENV{PATH})) ) | |
225 | { | |
ea54c8bd EC |
226 | *cwd = \&_backtick_pwd; |
227 | } | |
228 | else { | |
229 | *cwd = \&getcwd; | |
230 | } | |
231 | } | |
a0d0e21e | 232 | |
1f4f94f5 RS |
233 | # set a reasonable (and very safe) default for fastgetcwd, in case it |
234 | # isn't redefined later (20001212 rspier) | |
235 | *fastgetcwd = \&cwd; | |
748a9306 | 236 | |
a0d0e21e LW |
237 | # By Brandon S. Allbery |
238 | # | |
239 | # Usage: $cwd = getcwd(); | |
240 | ||
241 | sub getcwd | |
242 | { | |
07569ed3 | 243 | abs_path('.'); |
a0d0e21e LW |
244 | } |
245 | ||
a0c9c202 JH |
246 | |
247 | # By John Bazik | |
248 | # | |
249 | # Usage: $cwd = &fastcwd; | |
250 | # | |
251 | # This is a faster version of getcwd. It's also more dangerous because | |
252 | # you might chdir out of a directory that you can't chdir back into. | |
253 | ||
254 | sub fastcwd { | |
255 | my($odev, $oino, $cdev, $cino, $tdev, $tino); | |
256 | my(@path, $path); | |
257 | local(*DIR); | |
258 | ||
259 | my($orig_cdev, $orig_cino) = stat('.'); | |
260 | ($cdev, $cino) = ($orig_cdev, $orig_cino); | |
261 | for (;;) { | |
262 | my $direntry; | |
263 | ($odev, $oino) = ($cdev, $cino); | |
264 | CORE::chdir('..') || return undef; | |
265 | ($cdev, $cino) = stat('.'); | |
266 | last if $odev == $cdev && $oino == $cino; | |
267 | opendir(DIR, '.') || return undef; | |
268 | for (;;) { | |
269 | $direntry = readdir(DIR); | |
270 | last unless defined $direntry; | |
271 | next if $direntry eq '.'; | |
272 | next if $direntry eq '..'; | |
273 | ||
274 | ($tdev, $tino) = lstat($direntry); | |
275 | last unless $tdev != $odev || $tino != $oino; | |
276 | } | |
277 | closedir(DIR); | |
278 | return undef unless defined $direntry; # should never happen | |
279 | unshift(@path, $direntry); | |
280 | } | |
281 | $path = '/' . join('/', @path); | |
282 | if ($^O eq 'apollo') { $path = "/".$path; } | |
283 | # At this point $path may be tainted (if tainting) and chdir would fail. | |
248785eb RGS |
284 | # Untaint it then check that we landed where we started. |
285 | $path =~ /^(.*)\z/s # untaint | |
286 | && CORE::chdir($1) or return undef; | |
a0c9c202 JH |
287 | ($cdev, $cino) = stat('.'); |
288 | die "Unstable directory path, current directory changed unexpectedly" | |
289 | if $cdev != $orig_cdev || $cino != $orig_cino; | |
290 | $path; | |
291 | } | |
292 | ||
293 | ||
4633a7c4 | 294 | # Keeps track of current working directory in PWD environment var |
a0d0e21e LW |
295 | # Usage: |
296 | # use Cwd 'chdir'; | |
297 | # chdir $newdir; | |
298 | ||
4633a7c4 | 299 | my $chdir_init = 0; |
a0d0e21e | 300 | |
4633a7c4 | 301 | sub chdir_init { |
3b8e3443 | 302 | if ($ENV{'PWD'} and $^O ne 'os2' and $^O ne 'dos' and $^O ne 'MSWin32') { |
a0d0e21e LW |
303 | my($dd,$di) = stat('.'); |
304 | my($pd,$pi) = stat($ENV{'PWD'}); | |
305 | if (!defined $dd or !defined $pd or $di != $pi or $dd != $pd) { | |
4633a7c4 | 306 | $ENV{'PWD'} = cwd(); |
a0d0e21e LW |
307 | } |
308 | } | |
309 | else { | |
3b8e3443 GS |
310 | my $wd = cwd(); |
311 | $wd = Win32::GetFullPathName($wd) if $^O eq 'MSWin32'; | |
312 | $ENV{'PWD'} = $wd; | |
a0d0e21e | 313 | } |
4633a7c4 | 314 | # Strip an automounter prefix (where /tmp_mnt/foo/bar == /foo/bar) |
3b8e3443 | 315 | if ($^O ne 'MSWin32' and $ENV{'PWD'} =~ m|(/[^/]+(/[^/]+/[^/]+))(.*)|s) { |
a0d0e21e LW |
316 | my($pd,$pi) = stat($2); |
317 | my($dd,$di) = stat($1); | |
318 | if (defined $pd and defined $dd and $di == $pi and $dd == $pd) { | |
319 | $ENV{'PWD'}="$2$3"; | |
320 | } | |
321 | } | |
322 | $chdir_init = 1; | |
323 | } | |
324 | ||
325 | sub chdir { | |
22978713 | 326 | my $newdir = @_ ? shift : ''; # allow for no arg (chdir to HOME dir) |
3b8e3443 | 327 | $newdir =~ s|///*|/|g unless $^O eq 'MSWin32'; |
a0d0e21e | 328 | chdir_init() unless $chdir_init; |
4ffa1610 JH |
329 | my $newpwd; |
330 | if ($^O eq 'MSWin32') { | |
331 | # get the full path name *before* the chdir() | |
332 | $newpwd = Win32::GetFullPathName($newdir); | |
333 | } | |
334 | ||
4633a7c4 | 335 | return 0 unless CORE::chdir $newdir; |
4ffa1610 | 336 | |
3b8e3443 GS |
337 | if ($^O eq 'VMS') { |
338 | return $ENV{'PWD'} = $ENV{'DEFAULT'} | |
339 | } | |
4aecb5b5 JH |
340 | elsif ($^O eq 'MacOS') { |
341 | return $ENV{'PWD'} = cwd(); | |
342 | } | |
3b8e3443 | 343 | elsif ($^O eq 'MSWin32') { |
4ffa1610 | 344 | $ENV{'PWD'} = $newpwd; |
3b8e3443 GS |
345 | return 1; |
346 | } | |
748a9306 | 347 | |
392d8ab8 | 348 | if ($newdir =~ m#^/#s) { |
a0d0e21e | 349 | $ENV{'PWD'} = $newdir; |
4633a7c4 LW |
350 | } else { |
351 | my @curdir = split(m#/#,$ENV{'PWD'}); | |
352 | @curdir = ('') unless @curdir; | |
353 | my $component; | |
a0d0e21e LW |
354 | foreach $component (split(m#/#, $newdir)) { |
355 | next if $component eq '.'; | |
356 | pop(@curdir),next if $component eq '..'; | |
357 | push(@curdir,$component); | |
358 | } | |
359 | $ENV{'PWD'} = join('/',@curdir) || '/'; | |
360 | } | |
4633a7c4 | 361 | 1; |
a0d0e21e LW |
362 | } |
363 | ||
a0c9c202 JH |
364 | |
365 | # In case the XS version doesn't load. | |
366 | *abs_path = \&_perl_abs_path unless defined &abs_path; | |
367 | sub _perl_abs_path | |
368 | { | |
369 | my $start = @_ ? shift : '.'; | |
370 | my($dotdots, $cwd, @pst, @cst, $dir, @tst); | |
371 | ||
372 | unless (@cst = stat( $start )) | |
373 | { | |
a9939470 | 374 | _carp("stat($start): $!"); |
a0c9c202 JH |
375 | return ''; |
376 | } | |
377 | $cwd = ''; | |
378 | $dotdots = $start; | |
379 | do | |
380 | { | |
381 | $dotdots .= '/..'; | |
382 | @pst = @cst; | |
a25ef67d | 383 | local *PARENT; |
a0c9c202 JH |
384 | unless (opendir(PARENT, $dotdots)) |
385 | { | |
a9939470 | 386 | _carp("opendir($dotdots): $!"); |
a0c9c202 JH |
387 | return ''; |
388 | } | |
389 | unless (@cst = stat($dotdots)) | |
390 | { | |
a9939470 | 391 | _carp("stat($dotdots): $!"); |
a0c9c202 JH |
392 | closedir(PARENT); |
393 | return ''; | |
394 | } | |
395 | if ($pst[0] == $cst[0] && $pst[1] == $cst[1]) | |
396 | { | |
397 | $dir = undef; | |
398 | } | |
399 | else | |
400 | { | |
401 | do | |
402 | { | |
403 | unless (defined ($dir = readdir(PARENT))) | |
404 | { | |
a9939470 | 405 | _carp("readdir($dotdots): $!"); |
a0c9c202 JH |
406 | closedir(PARENT); |
407 | return ''; | |
408 | } | |
409 | $tst[0] = $pst[0]+1 unless (@tst = lstat("$dotdots/$dir")) | |
410 | } | |
411 | while ($dir eq '.' || $dir eq '..' || $tst[0] != $pst[0] || | |
412 | $tst[1] != $pst[1]); | |
413 | } | |
414 | $cwd = (defined $dir ? "$dir" : "" ) . "/$cwd" ; | |
415 | closedir(PARENT); | |
416 | } while (defined $dir); | |
417 | chop($cwd) unless $cwd eq '/'; # drop the trailing / | |
418 | $cwd; | |
419 | } | |
420 | ||
421 | ||
e4c51978 GS |
422 | # added function alias for those of us more |
423 | # used to the libc function. --tchrist 27-Jan-00 | |
424 | *realpath = \&abs_path; | |
425 | ||
3ee63918 | 426 | my $Curdir; |
96e4d5b1 | 427 | sub fast_abs_path { |
428 | my $cwd = getcwd(); | |
4d6b4052 | 429 | require File::Spec; |
3ee63918 MS |
430 | my $path = @_ ? shift : ($Curdir ||= File::Spec->curdir); |
431 | ||
432 | # Detaint else we'll explode in taint mode. This is safe because | |
433 | # we're not doing anything dangerous with it. | |
434 | ($path) = $path =~ /(.*)/; | |
435 | ($cwd) = $cwd =~ /(.*)/; | |
436 | ||
e2ba406b | 437 | if (!CORE::chdir($path)) { |
a9939470 | 438 | _croak("Cannot chdir to $path: $!"); |
e2ba406b | 439 | } |
96e4d5b1 | 440 | my $realpath = getcwd(); |
e2ba406b | 441 | if (! ((-d $cwd) && (CORE::chdir($cwd)))) { |
a9939470 | 442 | _croak("Cannot chdir back to $cwd: $!"); |
e2ba406b | 443 | } |
96e4d5b1 | 444 | $realpath; |
8b88ae92 NIS |
445 | } |
446 | ||
e4c51978 GS |
447 | # added function alias to follow principle of least surprise |
448 | # based on previous aliasing. --tchrist 27-Jan-00 | |
449 | *fast_realpath = \&fast_abs_path; | |
450 | ||
4633a7c4 LW |
451 | |
452 | # --- PORTING SECTION --- | |
453 | ||
454 | # VMS: $ENV{'DEFAULT'} points to default directory at all times | |
bd3fa61c | 455 | # 06-Mar-1996 Charles Bailey bailey@newman.upenn.edu |
c6538b72 | 456 | # Note: Use of Cwd::chdir() causes the logical name PWD to be defined |
8b88ae92 NIS |
457 | # in the process logical name table as the default device and directory |
458 | # seen by Perl. This may not be the same as the default device | |
4633a7c4 LW |
459 | # and directory seen by DCL after Perl exits, since the effects |
460 | # the CRTL chdir() function persist only until Perl exits. | |
4633a7c4 LW |
461 | |
462 | sub _vms_cwd { | |
96e4d5b1 | 463 | return $ENV{'DEFAULT'}; |
464 | } | |
465 | ||
466 | sub _vms_abs_path { | |
467 | return $ENV{'DEFAULT'} unless @_; | |
468 | my $path = VMS::Filespec::pathify($_[0]); | |
e2ba406b T |
469 | if (! defined $path) |
470 | { | |
a9939470 | 471 | _croak("Invalid path name $_[0]") |
e2ba406b | 472 | } |
96e4d5b1 | 473 | return VMS::Filespec::rmsexpand($path); |
4633a7c4 | 474 | } |
68dc0745 | 475 | |
4633a7c4 LW |
476 | sub _os2_cwd { |
477 | $ENV{'PWD'} = `cmd /c cd`; | |
39741d73 | 478 | chomp $ENV{'PWD'}; |
aa6b7957 | 479 | $ENV{'PWD'} =~ s:\\:/:g ; |
4633a7c4 LW |
480 | return $ENV{'PWD'}; |
481 | } | |
482 | ||
96e4d5b1 | 483 | sub _win32_cwd { |
2d7a9237 | 484 | $ENV{'PWD'} = Win32::GetCwd(); |
aa6b7957 | 485 | $ENV{'PWD'} =~ s:\\:/:g ; |
96e4d5b1 | 486 | return $ENV{'PWD'}; |
487 | } | |
488 | ||
489 | *_NT_cwd = \&_win32_cwd if (!defined &_NT_cwd && | |
2d7a9237 | 490 | defined &Win32::GetCwd); |
96e4d5b1 | 491 | |
492 | *_NT_cwd = \&_os2_cwd unless defined &_NT_cwd; | |
68dc0745 | 493 | |
39e571d4 LM |
494 | sub _dos_cwd { |
495 | if (!defined &Dos::GetCwd) { | |
496 | $ENV{'PWD'} = `command /c cd`; | |
39741d73 | 497 | chomp $ENV{'PWD'}; |
aa6b7957 | 498 | $ENV{'PWD'} =~ s:\\:/:g ; |
39e571d4 LM |
499 | } else { |
500 | $ENV{'PWD'} = Dos::GetCwd(); | |
501 | } | |
55497cff | 502 | return $ENV{'PWD'}; |
503 | } | |
504 | ||
7fbf1995 | 505 | sub _qnx_cwd { |
35b807ef NA |
506 | local $ENV{PATH} = ''; |
507 | local $ENV{CDPATH} = ''; | |
508 | local $ENV{ENV} = ''; | |
7fbf1995 | 509 | $ENV{'PWD'} = `/usr/bin/fullpath -t`; |
39741d73 | 510 | chomp $ENV{'PWD'}; |
7fbf1995 NA |
511 | return $ENV{'PWD'}; |
512 | } | |
513 | ||
514 | sub _qnx_abs_path { | |
35b807ef NA |
515 | local $ENV{PATH} = ''; |
516 | local $ENV{CDPATH} = ''; | |
517 | local $ENV{ENV} = ''; | |
fa921dc6 | 518 | my $path = @_ ? shift : '.'; |
39741d73 MS |
519 | local *REALPATH; |
520 | ||
521 | open(REALPATH, '-|', '/usr/bin/fullpath', '-t', $path) or | |
522 | die "Can't open /usr/bin/fullpath: $!"; | |
523 | my $realpath = <REALPATH>; | |
524 | close REALPATH; | |
525 | chomp $realpath; | |
7fbf1995 NA |
526 | return $realpath; |
527 | } | |
528 | ||
ed79a026 OF |
529 | sub _epoc_cwd { |
530 | $ENV{'PWD'} = EPOC::getcwd(); | |
531 | return $ENV{'PWD'}; | |
532 | } | |
533 | ||
ac1ad7f0 | 534 | { |
db376a24 | 535 | no warnings; # assignments trigger 'subroutine redefined' warning |
4633a7c4 | 536 | |
ac1ad7f0 | 537 | if ($^O eq 'VMS') { |
96e4d5b1 | 538 | *cwd = \&_vms_cwd; |
539 | *getcwd = \&_vms_cwd; | |
540 | *fastcwd = \&_vms_cwd; | |
541 | *fastgetcwd = \&_vms_cwd; | |
542 | *abs_path = \&_vms_abs_path; | |
543 | *fast_abs_path = \&_vms_abs_path; | |
ac1ad7f0 PM |
544 | } |
545 | elsif ($^O eq 'NT' or $^O eq 'MSWin32') { | |
546 | # We assume that &_NT_cwd is defined as an XSUB or in the core. | |
96e4d5b1 | 547 | *cwd = \&_NT_cwd; |
548 | *getcwd = \&_NT_cwd; | |
549 | *fastcwd = \&_NT_cwd; | |
550 | *fastgetcwd = \&_NT_cwd; | |
551 | *abs_path = \&fast_abs_path; | |
cade0c02 | 552 | *realpath = \&fast_abs_path; |
ac1ad7f0 | 553 | } |
39e571d4 LM |
554 | elsif ($^O eq 'dos') { |
555 | *cwd = \&_dos_cwd; | |
556 | *getcwd = \&_dos_cwd; | |
557 | *fastgetcwd = \&_dos_cwd; | |
558 | *fastcwd = \&_dos_cwd; | |
96e4d5b1 | 559 | *abs_path = \&fast_abs_path; |
ac1ad7f0 | 560 | } |
7438b6ad | 561 | elsif ($^O =~ m/^(?:qnx|nto)$/ ) { |
7fbf1995 NA |
562 | *cwd = \&_qnx_cwd; |
563 | *getcwd = \&_qnx_cwd; | |
564 | *fastgetcwd = \&_qnx_cwd; | |
565 | *fastcwd = \&_qnx_cwd; | |
566 | *abs_path = \&_qnx_abs_path; | |
567 | *fast_abs_path = \&_qnx_abs_path; | |
568 | } | |
4fabb596 | 569 | elsif ($^O eq 'cygwin') { |
1cab015a EF |
570 | *getcwd = \&cwd; |
571 | *fastgetcwd = \&cwd; | |
572 | *fastcwd = \&cwd; | |
573 | *abs_path = \&fast_abs_path; | |
a9939470 | 574 | *realpath = \&abs_path; |
1cab015a | 575 | } |
ed79a026 | 576 | elsif ($^O eq 'epoc') { |
fa6a1c44 OF |
577 | *cwd = \&_epoc_cwd; |
578 | *getcwd = \&_epoc_cwd; | |
ed79a026 OF |
579 | *fastgetcwd = \&_epoc_cwd; |
580 | *fastcwd = \&_epoc_cwd; | |
581 | *abs_path = \&fast_abs_path; | |
582 | } | |
4aecb5b5 JH |
583 | elsif ($^O eq 'MacOS') { |
584 | *getcwd = \&cwd; | |
585 | *fastgetcwd = \&cwd; | |
586 | *fastcwd = \&cwd; | |
587 | *abs_path = \&fast_abs_path; | |
588 | } | |
55497cff | 589 | } |
4633a7c4 | 590 | |
4633a7c4 | 591 | |
a0d0e21e | 592 | 1; |