Commit | Line | Data |
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a0d0e21e | 1 | package Cwd; |
ad78113d | 2 | $VERSION = $VERSION = '2.14'; |
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 $ENV{PWD} | |
104 | ||
105 | If you ask to override your chdir() built-in function, | |
106 | ||
107 | use Cwd qw(chdir); | |
108 | ||
109 | then your PWD environment variable will be kept up to date. Note that | |
110 | it will only be kept up to date if all packages which use chdir import | |
111 | it from Cwd. | |
4633a7c4 | 112 | |
4633a7c4 | 113 | |
4d6b4052 JH |
114 | =head1 NOTES |
115 | ||
116 | =over 4 | |
117 | ||
118 | =item * | |
119 | ||
04929354 MS |
120 | Since the path seperators are different on some operating systems ('/' |
121 | on Unix, ':' on MacPerl, etc...) we recommend you use the File::Spec | |
122 | modules wherever portability is a concern. | |
123 | ||
04929354 | 124 | =item * |
4d6b4052 JH |
125 | |
126 | Actually, on Mac OS, the C<getcwd()>, C<fastgetcwd()> and C<fastcwd()> | |
127 | functions are all aliases for the C<cwd()> function, which, on Mac OS, | |
128 | calls `pwd`. Likewise, the C<abs_path()> function is an alias for | |
129 | C<fast_abs_path()>. | |
130 | ||
131 | =back | |
132 | ||
04929354 MS |
133 | =head1 SEE ALSO |
134 | ||
135 | L<File::chdir> | |
136 | ||
f06db76b AD |
137 | =cut |
138 | ||
b060a406 | 139 | use strict; |
a9939470 | 140 | use Exporter; |
ad78113d | 141 | use vars qw(@ISA @EXPORT @EXPORT_OK); |
96e4d5b1 | 142 | |
a9939470 NC |
143 | @ISA = qw/ Exporter /; |
144 | @EXPORT = qw(cwd getcwd fastcwd fastgetcwd); | |
145 | @EXPORT_OK = qw(chdir abs_path fast_abs_path realpath fast_realpath); | |
a0d0e21e | 146 | |
f5f423e4 IZ |
147 | # sys_cwd may keep the builtin command |
148 | ||
149 | # All the functionality of this module may provided by builtins, | |
150 | # there is no sense to process the rest of the file. | |
151 | # The best choice may be to have this in BEGIN, but how to return from BEGIN? | |
152 | ||
a9939470 | 153 | if ($^O eq 'os2') { |
f5f423e4 | 154 | local $^W = 0; |
a9939470 NC |
155 | |
156 | *cwd = defined &sys_cwd ? \&sys_cwd : \&_os2_cwd; | |
157 | *getcwd = \&cwd; | |
158 | *fastgetcwd = \&cwd; | |
159 | *fastcwd = \&cwd; | |
160 | ||
161 | *fast_abs_path = \&sys_abspath if defined &sys_abspath; | |
162 | *abs_path = \&fast_abs_path; | |
163 | *realpath = \&fast_abs_path; | |
164 | *fast_realpath = \&fast_abs_path; | |
165 | ||
f5f423e4 IZ |
166 | return 1; |
167 | } | |
168 | ||
f22d8e4b DM |
169 | eval { |
170 | require XSLoader; | |
46ba3155 | 171 | local $^W = 0; |
f22d8e4b DM |
172 | XSLoader::load('Cwd'); |
173 | }; | |
4633a7c4 | 174 | |
96e4d5b1 | 175 | |
3547aa9a MS |
176 | # Find the pwd command in the expected locations. We assume these |
177 | # are safe. This prevents _backtick_pwd() consulting $ENV{PATH} | |
178 | # so everything works under taint mode. | |
179 | my $pwd_cmd; | |
889f7a4f RGS |
180 | foreach my $try ('/bin/pwd', |
181 | '/usr/bin/pwd', | |
182 | '/QOpenSys/bin/pwd', # OS/400 PASE. | |
183 | ) { | |
184 | ||
3547aa9a MS |
185 | if( -x $try ) { |
186 | $pwd_cmd = $try; | |
187 | last; | |
188 | } | |
189 | } | |
522b859a | 190 | unless ($pwd_cmd) { |
889f7a4f RGS |
191 | # Isn't this wrong? _backtick_pwd() will fail if somenone has |
192 | # pwd in their path but it is not /bin/pwd or /usr/bin/pwd? | |
193 | # See [perl #16774]. --jhi | |
194 | $pwd_cmd = 'pwd'; | |
522b859a | 195 | } |
3547aa9a | 196 | |
a9939470 NC |
197 | # Lazy-load Carp |
198 | sub _carp { require Carp; Carp::carp(@_) } | |
199 | sub _croak { require Carp; Carp::croak(@_) } | |
200 | ||
3547aa9a | 201 | # The 'natural and safe form' for UNIX (pwd may be setuid root) |
8b88ae92 | 202 | sub _backtick_pwd { |
db281859 | 203 | local @ENV{qw(PATH IFS CDPATH ENV BASH_ENV)}; |
3547aa9a | 204 | my $cwd = `$pwd_cmd`; |
ac3b20cb | 205 | # Belt-and-suspenders in case someone said "undef $/". |
5cf6da5f | 206 | local $/ = "\n"; |
ac3b20cb | 207 | # `pwd` may fail e.g. if the disk is full |
7e03f963 | 208 | chomp($cwd) if defined $cwd; |
4633a7c4 | 209 | $cwd; |
8b88ae92 | 210 | } |
4633a7c4 LW |
211 | |
212 | # Since some ports may predefine cwd internally (e.g., NT) | |
213 | # we take care not to override an existing definition for cwd(). | |
214 | ||
ea54c8bd EC |
215 | unless(defined &cwd) { |
216 | # The pwd command is not available in some chroot(2)'ed environments | |
73b801a6 MS |
217 | if( $^O eq 'MacOS' || (defined $ENV{PATH} && |
218 | grep { -x "$_/pwd" } split(':', $ENV{PATH})) ) | |
219 | { | |
ea54c8bd EC |
220 | *cwd = \&_backtick_pwd; |
221 | } | |
222 | else { | |
223 | *cwd = \&getcwd; | |
224 | } | |
225 | } | |
a0d0e21e | 226 | |
1f4f94f5 RS |
227 | # set a reasonable (and very safe) default for fastgetcwd, in case it |
228 | # isn't redefined later (20001212 rspier) | |
229 | *fastgetcwd = \&cwd; | |
748a9306 | 230 | |
a0d0e21e LW |
231 | # By Brandon S. Allbery |
232 | # | |
233 | # Usage: $cwd = getcwd(); | |
234 | ||
235 | sub getcwd | |
236 | { | |
07569ed3 | 237 | abs_path('.'); |
a0d0e21e LW |
238 | } |
239 | ||
a0c9c202 JH |
240 | |
241 | # By John Bazik | |
242 | # | |
243 | # Usage: $cwd = &fastcwd; | |
244 | # | |
245 | # This is a faster version of getcwd. It's also more dangerous because | |
246 | # you might chdir out of a directory that you can't chdir back into. | |
247 | ||
248 | sub fastcwd { | |
249 | my($odev, $oino, $cdev, $cino, $tdev, $tino); | |
250 | my(@path, $path); | |
251 | local(*DIR); | |
252 | ||
253 | my($orig_cdev, $orig_cino) = stat('.'); | |
254 | ($cdev, $cino) = ($orig_cdev, $orig_cino); | |
255 | for (;;) { | |
256 | my $direntry; | |
257 | ($odev, $oino) = ($cdev, $cino); | |
258 | CORE::chdir('..') || return undef; | |
259 | ($cdev, $cino) = stat('.'); | |
260 | last if $odev == $cdev && $oino == $cino; | |
261 | opendir(DIR, '.') || return undef; | |
262 | for (;;) { | |
263 | $direntry = readdir(DIR); | |
264 | last unless defined $direntry; | |
265 | next if $direntry eq '.'; | |
266 | next if $direntry eq '..'; | |
267 | ||
268 | ($tdev, $tino) = lstat($direntry); | |
269 | last unless $tdev != $odev || $tino != $oino; | |
270 | } | |
271 | closedir(DIR); | |
272 | return undef unless defined $direntry; # should never happen | |
273 | unshift(@path, $direntry); | |
274 | } | |
275 | $path = '/' . join('/', @path); | |
276 | if ($^O eq 'apollo') { $path = "/".$path; } | |
277 | # At this point $path may be tainted (if tainting) and chdir would fail. | |
248785eb RGS |
278 | # Untaint it then check that we landed where we started. |
279 | $path =~ /^(.*)\z/s # untaint | |
280 | && CORE::chdir($1) or return undef; | |
a0c9c202 JH |
281 | ($cdev, $cino) = stat('.'); |
282 | die "Unstable directory path, current directory changed unexpectedly" | |
283 | if $cdev != $orig_cdev || $cino != $orig_cino; | |
284 | $path; | |
285 | } | |
286 | ||
287 | ||
4633a7c4 | 288 | # Keeps track of current working directory in PWD environment var |
a0d0e21e LW |
289 | # Usage: |
290 | # use Cwd 'chdir'; | |
291 | # chdir $newdir; | |
292 | ||
4633a7c4 | 293 | my $chdir_init = 0; |
a0d0e21e | 294 | |
4633a7c4 | 295 | sub chdir_init { |
3b8e3443 | 296 | if ($ENV{'PWD'} and $^O ne 'os2' and $^O ne 'dos' and $^O ne 'MSWin32') { |
a0d0e21e LW |
297 | my($dd,$di) = stat('.'); |
298 | my($pd,$pi) = stat($ENV{'PWD'}); | |
299 | if (!defined $dd or !defined $pd or $di != $pi or $dd != $pd) { | |
4633a7c4 | 300 | $ENV{'PWD'} = cwd(); |
a0d0e21e LW |
301 | } |
302 | } | |
303 | else { | |
3b8e3443 GS |
304 | my $wd = cwd(); |
305 | $wd = Win32::GetFullPathName($wd) if $^O eq 'MSWin32'; | |
306 | $ENV{'PWD'} = $wd; | |
a0d0e21e | 307 | } |
4633a7c4 | 308 | # Strip an automounter prefix (where /tmp_mnt/foo/bar == /foo/bar) |
3b8e3443 | 309 | if ($^O ne 'MSWin32' and $ENV{'PWD'} =~ m|(/[^/]+(/[^/]+/[^/]+))(.*)|s) { |
a0d0e21e LW |
310 | my($pd,$pi) = stat($2); |
311 | my($dd,$di) = stat($1); | |
312 | if (defined $pd and defined $dd and $di == $pi and $dd == $pd) { | |
313 | $ENV{'PWD'}="$2$3"; | |
314 | } | |
315 | } | |
316 | $chdir_init = 1; | |
317 | } | |
318 | ||
319 | sub chdir { | |
22978713 | 320 | my $newdir = @_ ? shift : ''; # allow for no arg (chdir to HOME dir) |
3b8e3443 | 321 | $newdir =~ s|///*|/|g unless $^O eq 'MSWin32'; |
a0d0e21e | 322 | chdir_init() unless $chdir_init; |
4ffa1610 JH |
323 | my $newpwd; |
324 | if ($^O eq 'MSWin32') { | |
325 | # get the full path name *before* the chdir() | |
326 | $newpwd = Win32::GetFullPathName($newdir); | |
327 | } | |
328 | ||
4633a7c4 | 329 | return 0 unless CORE::chdir $newdir; |
4ffa1610 | 330 | |
3b8e3443 GS |
331 | if ($^O eq 'VMS') { |
332 | return $ENV{'PWD'} = $ENV{'DEFAULT'} | |
333 | } | |
4aecb5b5 JH |
334 | elsif ($^O eq 'MacOS') { |
335 | return $ENV{'PWD'} = cwd(); | |
336 | } | |
3b8e3443 | 337 | elsif ($^O eq 'MSWin32') { |
4ffa1610 | 338 | $ENV{'PWD'} = $newpwd; |
3b8e3443 GS |
339 | return 1; |
340 | } | |
748a9306 | 341 | |
392d8ab8 | 342 | if ($newdir =~ m#^/#s) { |
a0d0e21e | 343 | $ENV{'PWD'} = $newdir; |
4633a7c4 LW |
344 | } else { |
345 | my @curdir = split(m#/#,$ENV{'PWD'}); | |
346 | @curdir = ('') unless @curdir; | |
347 | my $component; | |
a0d0e21e LW |
348 | foreach $component (split(m#/#, $newdir)) { |
349 | next if $component eq '.'; | |
350 | pop(@curdir),next if $component eq '..'; | |
351 | push(@curdir,$component); | |
352 | } | |
353 | $ENV{'PWD'} = join('/',@curdir) || '/'; | |
354 | } | |
4633a7c4 | 355 | 1; |
a0d0e21e LW |
356 | } |
357 | ||
a0c9c202 JH |
358 | |
359 | # In case the XS version doesn't load. | |
360 | *abs_path = \&_perl_abs_path unless defined &abs_path; | |
361 | sub _perl_abs_path | |
362 | { | |
363 | my $start = @_ ? shift : '.'; | |
364 | my($dotdots, $cwd, @pst, @cst, $dir, @tst); | |
365 | ||
366 | unless (@cst = stat( $start )) | |
367 | { | |
a9939470 | 368 | _carp("stat($start): $!"); |
a0c9c202 JH |
369 | return ''; |
370 | } | |
371 | $cwd = ''; | |
372 | $dotdots = $start; | |
373 | do | |
374 | { | |
375 | $dotdots .= '/..'; | |
376 | @pst = @cst; | |
a25ef67d | 377 | local *PARENT; |
a0c9c202 JH |
378 | unless (opendir(PARENT, $dotdots)) |
379 | { | |
a9939470 | 380 | _carp("opendir($dotdots): $!"); |
a0c9c202 JH |
381 | return ''; |
382 | } | |
383 | unless (@cst = stat($dotdots)) | |
384 | { | |
a9939470 | 385 | _carp("stat($dotdots): $!"); |
a0c9c202 JH |
386 | closedir(PARENT); |
387 | return ''; | |
388 | } | |
389 | if ($pst[0] == $cst[0] && $pst[1] == $cst[1]) | |
390 | { | |
391 | $dir = undef; | |
392 | } | |
393 | else | |
394 | { | |
395 | do | |
396 | { | |
397 | unless (defined ($dir = readdir(PARENT))) | |
398 | { | |
a9939470 | 399 | _carp("readdir($dotdots): $!"); |
a0c9c202 JH |
400 | closedir(PARENT); |
401 | return ''; | |
402 | } | |
403 | $tst[0] = $pst[0]+1 unless (@tst = lstat("$dotdots/$dir")) | |
404 | } | |
405 | while ($dir eq '.' || $dir eq '..' || $tst[0] != $pst[0] || | |
406 | $tst[1] != $pst[1]); | |
407 | } | |
408 | $cwd = (defined $dir ? "$dir" : "" ) . "/$cwd" ; | |
409 | closedir(PARENT); | |
410 | } while (defined $dir); | |
411 | chop($cwd) unless $cwd eq '/'; # drop the trailing / | |
412 | $cwd; | |
413 | } | |
414 | ||
415 | ||
e4c51978 GS |
416 | # added function alias for those of us more |
417 | # used to the libc function. --tchrist 27-Jan-00 | |
418 | *realpath = \&abs_path; | |
419 | ||
3ee63918 | 420 | my $Curdir; |
96e4d5b1 | 421 | sub fast_abs_path { |
422 | my $cwd = getcwd(); | |
4d6b4052 | 423 | require File::Spec; |
3ee63918 MS |
424 | my $path = @_ ? shift : ($Curdir ||= File::Spec->curdir); |
425 | ||
426 | # Detaint else we'll explode in taint mode. This is safe because | |
427 | # we're not doing anything dangerous with it. | |
428 | ($path) = $path =~ /(.*)/; | |
429 | ($cwd) = $cwd =~ /(.*)/; | |
430 | ||
e2ba406b | 431 | if (!CORE::chdir($path)) { |
a9939470 | 432 | _croak("Cannot chdir to $path: $!"); |
e2ba406b | 433 | } |
96e4d5b1 | 434 | my $realpath = getcwd(); |
e2ba406b | 435 | if (! ((-d $cwd) && (CORE::chdir($cwd)))) { |
a9939470 | 436 | _croak("Cannot chdir back to $cwd: $!"); |
e2ba406b | 437 | } |
96e4d5b1 | 438 | $realpath; |
8b88ae92 NIS |
439 | } |
440 | ||
e4c51978 GS |
441 | # added function alias to follow principle of least surprise |
442 | # based on previous aliasing. --tchrist 27-Jan-00 | |
443 | *fast_realpath = \&fast_abs_path; | |
444 | ||
4633a7c4 LW |
445 | |
446 | # --- PORTING SECTION --- | |
447 | ||
448 | # VMS: $ENV{'DEFAULT'} points to default directory at all times | |
bd3fa61c | 449 | # 06-Mar-1996 Charles Bailey bailey@newman.upenn.edu |
c6538b72 | 450 | # Note: Use of Cwd::chdir() causes the logical name PWD to be defined |
8b88ae92 NIS |
451 | # in the process logical name table as the default device and directory |
452 | # seen by Perl. This may not be the same as the default device | |
4633a7c4 LW |
453 | # and directory seen by DCL after Perl exits, since the effects |
454 | # the CRTL chdir() function persist only until Perl exits. | |
4633a7c4 LW |
455 | |
456 | sub _vms_cwd { | |
96e4d5b1 | 457 | return $ENV{'DEFAULT'}; |
458 | } | |
459 | ||
460 | sub _vms_abs_path { | |
461 | return $ENV{'DEFAULT'} unless @_; | |
462 | my $path = VMS::Filespec::pathify($_[0]); | |
e2ba406b T |
463 | if (! defined $path) |
464 | { | |
a9939470 | 465 | _croak("Invalid path name $_[0]") |
e2ba406b | 466 | } |
96e4d5b1 | 467 | return VMS::Filespec::rmsexpand($path); |
4633a7c4 | 468 | } |
68dc0745 | 469 | |
4633a7c4 LW |
470 | sub _os2_cwd { |
471 | $ENV{'PWD'} = `cmd /c cd`; | |
39741d73 | 472 | chomp $ENV{'PWD'}; |
aa6b7957 | 473 | $ENV{'PWD'} =~ s:\\:/:g ; |
4633a7c4 LW |
474 | return $ENV{'PWD'}; |
475 | } | |
476 | ||
96e4d5b1 | 477 | sub _win32_cwd { |
2d7a9237 | 478 | $ENV{'PWD'} = Win32::GetCwd(); |
aa6b7957 | 479 | $ENV{'PWD'} =~ s:\\:/:g ; |
96e4d5b1 | 480 | return $ENV{'PWD'}; |
481 | } | |
482 | ||
483 | *_NT_cwd = \&_win32_cwd if (!defined &_NT_cwd && | |
2d7a9237 | 484 | defined &Win32::GetCwd); |
96e4d5b1 | 485 | |
486 | *_NT_cwd = \&_os2_cwd unless defined &_NT_cwd; | |
68dc0745 | 487 | |
39e571d4 LM |
488 | sub _dos_cwd { |
489 | if (!defined &Dos::GetCwd) { | |
490 | $ENV{'PWD'} = `command /c cd`; | |
39741d73 | 491 | chomp $ENV{'PWD'}; |
aa6b7957 | 492 | $ENV{'PWD'} =~ s:\\:/:g ; |
39e571d4 LM |
493 | } else { |
494 | $ENV{'PWD'} = Dos::GetCwd(); | |
495 | } | |
55497cff | 496 | return $ENV{'PWD'}; |
497 | } | |
498 | ||
7fbf1995 | 499 | sub _qnx_cwd { |
35b807ef NA |
500 | local $ENV{PATH} = ''; |
501 | local $ENV{CDPATH} = ''; | |
502 | local $ENV{ENV} = ''; | |
7fbf1995 | 503 | $ENV{'PWD'} = `/usr/bin/fullpath -t`; |
39741d73 | 504 | chomp $ENV{'PWD'}; |
7fbf1995 NA |
505 | return $ENV{'PWD'}; |
506 | } | |
507 | ||
508 | sub _qnx_abs_path { | |
35b807ef NA |
509 | local $ENV{PATH} = ''; |
510 | local $ENV{CDPATH} = ''; | |
511 | local $ENV{ENV} = ''; | |
fa921dc6 | 512 | my $path = @_ ? shift : '.'; |
39741d73 MS |
513 | local *REALPATH; |
514 | ||
515 | open(REALPATH, '-|', '/usr/bin/fullpath', '-t', $path) or | |
516 | die "Can't open /usr/bin/fullpath: $!"; | |
517 | my $realpath = <REALPATH>; | |
518 | close REALPATH; | |
519 | chomp $realpath; | |
7fbf1995 NA |
520 | return $realpath; |
521 | } | |
522 | ||
ed79a026 OF |
523 | sub _epoc_cwd { |
524 | $ENV{'PWD'} = EPOC::getcwd(); | |
525 | return $ENV{'PWD'}; | |
526 | } | |
527 | ||
ac1ad7f0 | 528 | { |
db376a24 | 529 | no warnings; # assignments trigger 'subroutine redefined' warning |
4633a7c4 | 530 | |
ac1ad7f0 | 531 | if ($^O eq 'VMS') { |
96e4d5b1 | 532 | *cwd = \&_vms_cwd; |
533 | *getcwd = \&_vms_cwd; | |
534 | *fastcwd = \&_vms_cwd; | |
535 | *fastgetcwd = \&_vms_cwd; | |
536 | *abs_path = \&_vms_abs_path; | |
537 | *fast_abs_path = \&_vms_abs_path; | |
ac1ad7f0 PM |
538 | } |
539 | elsif ($^O eq 'NT' or $^O eq 'MSWin32') { | |
540 | # We assume that &_NT_cwd is defined as an XSUB or in the core. | |
96e4d5b1 | 541 | *cwd = \&_NT_cwd; |
542 | *getcwd = \&_NT_cwd; | |
543 | *fastcwd = \&_NT_cwd; | |
544 | *fastgetcwd = \&_NT_cwd; | |
545 | *abs_path = \&fast_abs_path; | |
cade0c02 | 546 | *realpath = \&fast_abs_path; |
ac1ad7f0 | 547 | } |
39e571d4 LM |
548 | elsif ($^O eq 'dos') { |
549 | *cwd = \&_dos_cwd; | |
550 | *getcwd = \&_dos_cwd; | |
551 | *fastgetcwd = \&_dos_cwd; | |
552 | *fastcwd = \&_dos_cwd; | |
96e4d5b1 | 553 | *abs_path = \&fast_abs_path; |
ac1ad7f0 | 554 | } |
7438b6ad | 555 | elsif ($^O =~ m/^(?:qnx|nto)$/ ) { |
7fbf1995 NA |
556 | *cwd = \&_qnx_cwd; |
557 | *getcwd = \&_qnx_cwd; | |
558 | *fastgetcwd = \&_qnx_cwd; | |
559 | *fastcwd = \&_qnx_cwd; | |
560 | *abs_path = \&_qnx_abs_path; | |
561 | *fast_abs_path = \&_qnx_abs_path; | |
562 | } | |
4fabb596 | 563 | elsif ($^O eq 'cygwin') { |
1cab015a EF |
564 | *getcwd = \&cwd; |
565 | *fastgetcwd = \&cwd; | |
566 | *fastcwd = \&cwd; | |
567 | *abs_path = \&fast_abs_path; | |
a9939470 | 568 | *realpath = \&abs_path; |
1cab015a | 569 | } |
ed79a026 | 570 | elsif ($^O eq 'epoc') { |
fa6a1c44 OF |
571 | *cwd = \&_epoc_cwd; |
572 | *getcwd = \&_epoc_cwd; | |
ed79a026 OF |
573 | *fastgetcwd = \&_epoc_cwd; |
574 | *fastcwd = \&_epoc_cwd; | |
575 | *abs_path = \&fast_abs_path; | |
576 | } | |
4aecb5b5 JH |
577 | elsif ($^O eq 'MacOS') { |
578 | *getcwd = \&cwd; | |
579 | *fastgetcwd = \&cwd; | |
580 | *fastcwd = \&cwd; | |
581 | *abs_path = \&fast_abs_path; | |
582 | } | |
55497cff | 583 | } |
4633a7c4 | 584 | |
4633a7c4 | 585 | |
a0d0e21e | 586 | 1; |