| 1 | #include "EXTERN.h"
|
|---|
| 2 | #include "perl.h"
|
|---|
| 3 | #include "XSUB.h"
|
|---|
| 4 | #define NEED_sv_2pv_nolen
|
|---|
| 5 | #include "ppport.h"
|
|---|
| 6 |
|
|---|
| 7 | #ifdef I_UNISTD
|
|---|
| 8 | # include <unistd.h>
|
|---|
| 9 | #endif
|
|---|
| 10 |
|
|---|
| 11 | /* The realpath() implementation from OpenBSD 2.9 (realpath.c 1.4)
|
|---|
| 12 | * Renamed here to bsd_realpath() to avoid library conflicts.
|
|---|
| 13 | * --jhi 2000-06-20
|
|---|
| 14 | */
|
|---|
| 15 |
|
|---|
| 16 | /* See
|
|---|
| 17 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2004-11/msg00979.html
|
|---|
| 18 | * for the details of why the BSD license is compatible with the
|
|---|
| 19 | * AL/GPL standard perl license.
|
|---|
| 20 | */
|
|---|
| 21 |
|
|---|
| 22 | /*
|
|---|
| 23 | * Copyright (c) 1994
|
|---|
| 24 | * The Regents of the University of California. All rights reserved.
|
|---|
| 25 | *
|
|---|
| 26 | * This code is derived from software contributed to Berkeley by
|
|---|
| 27 | * Jan-Simon Pendry.
|
|---|
| 28 | *
|
|---|
| 29 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 30 | * modification, are permitted provided that the following conditions
|
|---|
| 31 | * are met:
|
|---|
| 32 | * 1. Redistributions of source code must retain the above copyright
|
|---|
| 33 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 34 | * 2. Redistributions in binary form must reproduce the above copyright
|
|---|
| 35 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 36 | * documentation and/or other materials provided with the distribution.
|
|---|
| 37 | * 3. Neither the name of the University nor the names of its contributors
|
|---|
| 38 | * may be used to endorse or promote products derived from this software
|
|---|
| 39 | * without specific prior written permission.
|
|---|
| 40 | *
|
|---|
| 41 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|---|
| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|---|
| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|---|
| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|---|
| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|---|
| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|---|
| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|---|
| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|---|
| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|---|
| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|---|
| 51 | * SUCH DAMAGE.
|
|---|
| 52 | */
|
|---|
| 53 |
|
|---|
| 54 | #if defined(LIBC_SCCS) && !defined(lint)
|
|---|
| 55 | static char *rcsid = "$OpenBSD: realpath.c,v 1.4 1998/05/18 09:55:19 deraadt Exp $";
|
|---|
| 56 | #endif /* LIBC_SCCS and not lint */
|
|---|
| 57 |
|
|---|
| 58 | /* OpenBSD system #includes removed since the Perl ones should do. --jhi */
|
|---|
| 59 |
|
|---|
| 60 | #ifndef MAXSYMLINKS
|
|---|
| 61 | #define MAXSYMLINKS 8
|
|---|
| 62 | #endif
|
|---|
| 63 |
|
|---|
| 64 | /*
|
|---|
| 65 | * char *realpath(const char *path, char resolved_path[MAXPATHLEN]);
|
|---|
| 66 | *
|
|---|
| 67 | * Find the real name of path, by removing all ".", ".." and symlink
|
|---|
| 68 | * components. Returns (resolved) on success, or (NULL) on failure,
|
|---|
| 69 | * in which case the path which caused trouble is left in (resolved).
|
|---|
| 70 | */
|
|---|
| 71 | static
|
|---|
| 72 | char *
|
|---|
| 73 | bsd_realpath(const char *path, char *resolved)
|
|---|
| 74 | {
|
|---|
| 75 | #ifdef VMS
|
|---|
| 76 | dTHX;
|
|---|
| 77 | return Perl_rmsexpand(aTHX_ (char*)path, resolved, NULL, 0);
|
|---|
| 78 | #else
|
|---|
| 79 | int rootd, serrno;
|
|---|
| 80 | char *p, *q, wbuf[MAXPATHLEN];
|
|---|
| 81 | int symlinks = 0;
|
|---|
| 82 |
|
|---|
| 83 | /* Save the starting point. */
|
|---|
| 84 | #ifdef HAS_FCHDIR
|
|---|
| 85 | int fd;
|
|---|
| 86 |
|
|---|
| 87 | if ((fd = open(".", O_RDONLY)) < 0) {
|
|---|
| 88 | (void)strcpy(resolved, ".");
|
|---|
| 89 | return (NULL);
|
|---|
| 90 | }
|
|---|
| 91 | #else
|
|---|
| 92 | char wd[MAXPATHLEN];
|
|---|
| 93 |
|
|---|
| 94 | if (getcwd(wd, MAXPATHLEN - 1) == NULL) {
|
|---|
| 95 | (void)strcpy(resolved, ".");
|
|---|
| 96 | return (NULL);
|
|---|
| 97 | }
|
|---|
| 98 | #endif
|
|---|
| 99 |
|
|---|
| 100 | /*
|
|---|
| 101 | * Find the dirname and basename from the path to be resolved.
|
|---|
| 102 | * Change directory to the dirname component.
|
|---|
| 103 | * lstat the basename part.
|
|---|
| 104 | * if it is a symlink, read in the value and loop.
|
|---|
| 105 | * if it is a directory, then change to that directory.
|
|---|
| 106 | * get the current directory name and append the basename.
|
|---|
| 107 | */
|
|---|
| 108 | (void)strncpy(resolved, path, MAXPATHLEN - 1);
|
|---|
| 109 | resolved[MAXPATHLEN - 1] = '\0';
|
|---|
| 110 | loop:
|
|---|
| 111 | q = strrchr(resolved, '/');
|
|---|
| 112 | if (q != NULL) {
|
|---|
| 113 | p = q + 1;
|
|---|
| 114 | if (q == resolved)
|
|---|
| 115 | q = "/";
|
|---|
| 116 | else {
|
|---|
| 117 | do {
|
|---|
| 118 | --q;
|
|---|
| 119 | } while (q > resolved && *q == '/');
|
|---|
| 120 | q[1] = '\0';
|
|---|
| 121 | q = resolved;
|
|---|
| 122 | }
|
|---|
| 123 | if (chdir(q) < 0)
|
|---|
| 124 | goto err1;
|
|---|
| 125 | } else
|
|---|
| 126 | p = resolved;
|
|---|
| 127 |
|
|---|
| 128 | #if defined(HAS_LSTAT) && defined(HAS_READLINK) && defined(HAS_SYMLINK)
|
|---|
| 129 | {
|
|---|
| 130 | struct stat sb;
|
|---|
| 131 | /* Deal with the last component. */
|
|---|
| 132 | if (lstat(p, &sb) == 0) {
|
|---|
| 133 | if (S_ISLNK(sb.st_mode)) {
|
|---|
| 134 | int n;
|
|---|
| 135 | if (++symlinks > MAXSYMLINKS) {
|
|---|
| 136 | errno = ELOOP;
|
|---|
| 137 | goto err1;
|
|---|
| 138 | }
|
|---|
| 139 | n = readlink(p, resolved, MAXPATHLEN-1);
|
|---|
| 140 | if (n < 0)
|
|---|
| 141 | goto err1;
|
|---|
| 142 | resolved[n] = '\0';
|
|---|
| 143 | goto loop;
|
|---|
| 144 | }
|
|---|
| 145 | if (S_ISDIR(sb.st_mode)) {
|
|---|
| 146 | if (chdir(p) < 0)
|
|---|
| 147 | goto err1;
|
|---|
| 148 | p = "";
|
|---|
| 149 | }
|
|---|
| 150 | }
|
|---|
| 151 | }
|
|---|
| 152 | #endif
|
|---|
| 153 |
|
|---|
| 154 | /*
|
|---|
| 155 | * Save the last component name and get the full pathname of
|
|---|
| 156 | * the current directory.
|
|---|
| 157 | */
|
|---|
| 158 | (void)strcpy(wbuf, p);
|
|---|
| 159 | if (getcwd(resolved, MAXPATHLEN) == 0)
|
|---|
| 160 | goto err1;
|
|---|
| 161 |
|
|---|
| 162 | /*
|
|---|
| 163 | * Join the two strings together, ensuring that the right thing
|
|---|
| 164 | * happens if the last component is empty, or the dirname is root.
|
|---|
| 165 | */
|
|---|
| 166 | if (resolved[0] == '/' && resolved[1] == '\0')
|
|---|
| 167 | rootd = 1;
|
|---|
| 168 | else
|
|---|
| 169 | rootd = 0;
|
|---|
| 170 |
|
|---|
| 171 | if (*wbuf) {
|
|---|
| 172 | if (strlen(resolved) + strlen(wbuf) + (1 - rootd) + 1 > MAXPATHLEN) {
|
|---|
| 173 | errno = ENAMETOOLONG;
|
|---|
| 174 | goto err1;
|
|---|
| 175 | }
|
|---|
| 176 | if (rootd == 0)
|
|---|
| 177 | (void)strcat(resolved, "/");
|
|---|
| 178 | (void)strcat(resolved, wbuf);
|
|---|
| 179 | }
|
|---|
| 180 |
|
|---|
| 181 | /* Go back to where we came from. */
|
|---|
| 182 | #ifdef HAS_FCHDIR
|
|---|
| 183 | if (fchdir(fd) < 0) {
|
|---|
| 184 | serrno = errno;
|
|---|
| 185 | goto err2;
|
|---|
| 186 | }
|
|---|
| 187 | #else
|
|---|
| 188 | if (chdir(wd) < 0) {
|
|---|
| 189 | serrno = errno;
|
|---|
| 190 | goto err2;
|
|---|
| 191 | }
|
|---|
| 192 | #endif
|
|---|
| 193 |
|
|---|
| 194 | /* It's okay if the close fails, what's an fd more or less? */
|
|---|
| 195 | #ifdef HAS_FCHDIR
|
|---|
| 196 | (void)close(fd);
|
|---|
| 197 | #endif
|
|---|
| 198 | return (resolved);
|
|---|
| 199 |
|
|---|
| 200 | err1: serrno = errno;
|
|---|
| 201 | #ifdef HAS_FCHDIR
|
|---|
| 202 | (void)fchdir(fd);
|
|---|
| 203 | #else
|
|---|
| 204 | (void)chdir(wd);
|
|---|
| 205 | #endif
|
|---|
| 206 |
|
|---|
| 207 | err2:
|
|---|
| 208 | #ifdef HAS_FCHDIR
|
|---|
| 209 | (void)close(fd);
|
|---|
| 210 | #endif
|
|---|
| 211 | errno = serrno;
|
|---|
| 212 | return (NULL);
|
|---|
| 213 | #endif
|
|---|
| 214 | }
|
|---|
| 215 |
|
|---|
| 216 | #ifndef SV_CWD_RETURN_UNDEF
|
|---|
| 217 | #define SV_CWD_RETURN_UNDEF \
|
|---|
| 218 | sv_setsv(sv, &PL_sv_undef); \
|
|---|
| 219 | return FALSE
|
|---|
| 220 | #endif
|
|---|
| 221 |
|
|---|
| 222 | #ifndef OPpENTERSUB_HASTARG
|
|---|
| 223 | #define OPpENTERSUB_HASTARG 32 /* Called from OP tree. */
|
|---|
| 224 | #endif
|
|---|
| 225 |
|
|---|
| 226 | #ifndef dXSTARG
|
|---|
| 227 | #define dXSTARG SV * targ = ((PL_op->op_private & OPpENTERSUB_HASTARG) \
|
|---|
| 228 | ? PAD_SV(PL_op->op_targ) : sv_newmortal())
|
|---|
| 229 | #endif
|
|---|
| 230 |
|
|---|
| 231 | #ifndef XSprePUSH
|
|---|
| 232 | #define XSprePUSH (sp = PL_stack_base + ax - 1)
|
|---|
| 233 | #endif
|
|---|
| 234 |
|
|---|
| 235 | #ifndef SV_CWD_ISDOT
|
|---|
| 236 | #define SV_CWD_ISDOT(dp) \
|
|---|
| 237 | (dp->d_name[0] == '.' && (dp->d_name[1] == '\0' || \
|
|---|
| 238 | (dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
|
|---|
| 239 | #endif
|
|---|
| 240 |
|
|---|
| 241 | #ifndef getcwd_sv
|
|---|
| 242 | /* Taken from perl 5.8's util.c */
|
|---|
| 243 | #define getcwd_sv(a) Perl_getcwd_sv(aTHX_ a)
|
|---|
| 244 | int Perl_getcwd_sv(pTHX_ register SV *sv)
|
|---|
| 245 | {
|
|---|
| 246 | #ifndef PERL_MICRO
|
|---|
| 247 |
|
|---|
| 248 | #ifndef INCOMPLETE_TAINTS
|
|---|
| 249 | SvTAINTED_on(sv);
|
|---|
| 250 | #endif
|
|---|
| 251 |
|
|---|
| 252 | #ifdef HAS_GETCWD
|
|---|
| 253 | {
|
|---|
| 254 | char buf[MAXPATHLEN];
|
|---|
| 255 |
|
|---|
| 256 | /* Some getcwd()s automatically allocate a buffer of the given
|
|---|
| 257 | * size from the heap if they are given a NULL buffer pointer.
|
|---|
| 258 | * The problem is that this behaviour is not portable. */
|
|---|
| 259 | if (getcwd(buf, sizeof(buf) - 1)) {
|
|---|
| 260 | STRLEN len = strlen(buf);
|
|---|
| 261 | sv_setpvn(sv, buf, len);
|
|---|
| 262 | return TRUE;
|
|---|
| 263 | }
|
|---|
| 264 | else {
|
|---|
| 265 | sv_setsv(sv, &PL_sv_undef);
|
|---|
| 266 | return FALSE;
|
|---|
| 267 | }
|
|---|
| 268 | }
|
|---|
| 269 |
|
|---|
| 270 | #else
|
|---|
| 271 | {
|
|---|
| 272 | Stat_t statbuf;
|
|---|
| 273 | int orig_cdev, orig_cino, cdev, cino, odev, oino, tdev, tino;
|
|---|
| 274 | int namelen, pathlen=0;
|
|---|
| 275 | DIR *dir;
|
|---|
| 276 | Direntry_t *dp;
|
|---|
| 277 |
|
|---|
| 278 | (void)SvUPGRADE(sv, SVt_PV);
|
|---|
| 279 |
|
|---|
| 280 | if (PerlLIO_lstat(".", &statbuf) < 0) {
|
|---|
| 281 | SV_CWD_RETURN_UNDEF;
|
|---|
| 282 | }
|
|---|
| 283 |
|
|---|
| 284 | orig_cdev = statbuf.st_dev;
|
|---|
| 285 | orig_cino = statbuf.st_ino;
|
|---|
| 286 | cdev = orig_cdev;
|
|---|
| 287 | cino = orig_cino;
|
|---|
| 288 |
|
|---|
| 289 | for (;;) {
|
|---|
| 290 | odev = cdev;
|
|---|
| 291 | oino = cino;
|
|---|
| 292 |
|
|---|
| 293 | if (PerlDir_chdir("..") < 0) {
|
|---|
| 294 | SV_CWD_RETURN_UNDEF;
|
|---|
| 295 | }
|
|---|
| 296 | if (PerlLIO_stat(".", &statbuf) < 0) {
|
|---|
| 297 | SV_CWD_RETURN_UNDEF;
|
|---|
| 298 | }
|
|---|
| 299 |
|
|---|
| 300 | cdev = statbuf.st_dev;
|
|---|
| 301 | cino = statbuf.st_ino;
|
|---|
| 302 |
|
|---|
| 303 | if (odev == cdev && oino == cino) {
|
|---|
| 304 | break;
|
|---|
| 305 | }
|
|---|
| 306 | if (!(dir = PerlDir_open("."))) {
|
|---|
| 307 | SV_CWD_RETURN_UNDEF;
|
|---|
| 308 | }
|
|---|
| 309 |
|
|---|
| 310 | while ((dp = PerlDir_read(dir)) != NULL) {
|
|---|
| 311 | #ifdef DIRNAMLEN
|
|---|
| 312 | namelen = dp->d_namlen;
|
|---|
| 313 | #else
|
|---|
| 314 | namelen = strlen(dp->d_name);
|
|---|
| 315 | #endif
|
|---|
| 316 | /* skip . and .. */
|
|---|
| 317 | if (SV_CWD_ISDOT(dp)) {
|
|---|
| 318 | continue;
|
|---|
| 319 | }
|
|---|
| 320 |
|
|---|
| 321 | if (PerlLIO_lstat(dp->d_name, &statbuf) < 0) {
|
|---|
| 322 | SV_CWD_RETURN_UNDEF;
|
|---|
| 323 | }
|
|---|
| 324 |
|
|---|
| 325 | tdev = statbuf.st_dev;
|
|---|
| 326 | tino = statbuf.st_ino;
|
|---|
| 327 | if (tino == oino && tdev == odev) {
|
|---|
| 328 | break;
|
|---|
| 329 | }
|
|---|
| 330 | }
|
|---|
| 331 |
|
|---|
| 332 | if (!dp) {
|
|---|
| 333 | SV_CWD_RETURN_UNDEF;
|
|---|
| 334 | }
|
|---|
| 335 |
|
|---|
| 336 | if (pathlen + namelen + 1 >= MAXPATHLEN) {
|
|---|
| 337 | SV_CWD_RETURN_UNDEF;
|
|---|
| 338 | }
|
|---|
| 339 |
|
|---|
| 340 | SvGROW(sv, pathlen + namelen + 1);
|
|---|
| 341 |
|
|---|
| 342 | if (pathlen) {
|
|---|
| 343 | /* shift down */
|
|---|
| 344 | Move(SvPVX(sv), SvPVX(sv) + namelen + 1, pathlen, char);
|
|---|
| 345 | }
|
|---|
| 346 |
|
|---|
| 347 | /* prepend current directory to the front */
|
|---|
| 348 | *SvPVX(sv) = '/';
|
|---|
| 349 | Move(dp->d_name, SvPVX(sv)+1, namelen, char);
|
|---|
| 350 | pathlen += (namelen + 1);
|
|---|
| 351 |
|
|---|
| 352 | #ifdef VOID_CLOSEDIR
|
|---|
| 353 | PerlDir_close(dir);
|
|---|
| 354 | #else
|
|---|
| 355 | if (PerlDir_close(dir) < 0) {
|
|---|
| 356 | SV_CWD_RETURN_UNDEF;
|
|---|
| 357 | }
|
|---|
| 358 | #endif
|
|---|
| 359 | }
|
|---|
| 360 |
|
|---|
| 361 | if (pathlen) {
|
|---|
| 362 | SvCUR_set(sv, pathlen);
|
|---|
| 363 | *SvEND(sv) = '\0';
|
|---|
| 364 | SvPOK_only(sv);
|
|---|
| 365 |
|
|---|
| 366 | if (PerlDir_chdir(SvPVX(sv)) < 0) {
|
|---|
| 367 | SV_CWD_RETURN_UNDEF;
|
|---|
| 368 | }
|
|---|
| 369 | }
|
|---|
| 370 | if (PerlLIO_stat(".", &statbuf) < 0) {
|
|---|
| 371 | SV_CWD_RETURN_UNDEF;
|
|---|
| 372 | }
|
|---|
| 373 |
|
|---|
| 374 | cdev = statbuf.st_dev;
|
|---|
| 375 | cino = statbuf.st_ino;
|
|---|
| 376 |
|
|---|
| 377 | if (cdev != orig_cdev || cino != orig_cino) {
|
|---|
| 378 | Perl_croak(aTHX_ "Unstable directory path, "
|
|---|
| 379 | "current directory changed unexpectedly");
|
|---|
| 380 | }
|
|---|
| 381 |
|
|---|
| 382 | return TRUE;
|
|---|
| 383 | }
|
|---|
| 384 | #endif
|
|---|
| 385 |
|
|---|
| 386 | #else
|
|---|
| 387 | return FALSE;
|
|---|
| 388 | #endif
|
|---|
| 389 | }
|
|---|
| 390 |
|
|---|
| 391 | #endif
|
|---|
| 392 |
|
|---|
| 393 |
|
|---|
| 394 | MODULE = Cwd PACKAGE = Cwd
|
|---|
| 395 |
|
|---|
| 396 | PROTOTYPES: ENABLE
|
|---|
| 397 |
|
|---|
| 398 | void
|
|---|
| 399 | fastcwd()
|
|---|
| 400 | PROTOTYPE: DISABLE
|
|---|
| 401 | PPCODE:
|
|---|
| 402 | {
|
|---|
| 403 | dXSTARG;
|
|---|
| 404 | getcwd_sv(TARG);
|
|---|
| 405 | XSprePUSH; PUSHTARG;
|
|---|
| 406 | #ifndef INCOMPLETE_TAINTS
|
|---|
| 407 | SvTAINTED_on(TARG);
|
|---|
| 408 | #endif
|
|---|
| 409 | }
|
|---|
| 410 |
|
|---|
| 411 | void
|
|---|
| 412 | abs_path(pathsv=Nullsv)
|
|---|
| 413 | SV *pathsv
|
|---|
| 414 | PROTOTYPE: DISABLE
|
|---|
| 415 | PPCODE:
|
|---|
| 416 | {
|
|---|
| 417 | dXSTARG;
|
|---|
| 418 | char *path;
|
|---|
| 419 | char buf[MAXPATHLEN];
|
|---|
| 420 |
|
|---|
| 421 | path = pathsv ? SvPV_nolen(pathsv) : (char *)".";
|
|---|
| 422 |
|
|---|
| 423 | if (bsd_realpath(path, buf)) {
|
|---|
| 424 | sv_setpvn(TARG, buf, strlen(buf));
|
|---|
| 425 | SvPOK_only(TARG);
|
|---|
| 426 | SvTAINTED_on(TARG);
|
|---|
| 427 | }
|
|---|
| 428 | else
|
|---|
| 429 | sv_setsv(TARG, &PL_sv_undef);
|
|---|
| 430 |
|
|---|
| 431 | XSprePUSH; PUSHTARG;
|
|---|
| 432 | #ifndef INCOMPLETE_TAINTS
|
|---|
| 433 | SvTAINTED_on(TARG);
|
|---|
| 434 | #endif
|
|---|
| 435 | }
|
|---|
| 436 |
|
|---|
| 437 | #ifdef WIN32
|
|---|
| 438 |
|
|---|
| 439 | void
|
|---|
| 440 | getdcwd(...)
|
|---|
| 441 | PPCODE:
|
|---|
| 442 | {
|
|---|
| 443 | dXSTARG;
|
|---|
| 444 | int drive;
|
|---|
| 445 | char *dir;
|
|---|
| 446 |
|
|---|
| 447 | /* Drive 0 is the current drive, 1 is A:, 2 is B:, 3 is C: and so on. */
|
|---|
| 448 | if ( items == 0 ||
|
|---|
| 449 | (items == 1 && (!SvOK(ST(0)) || (SvPOK(ST(0)) && !SvCUR(ST(0))))))
|
|---|
| 450 | drive = 0;
|
|---|
| 451 | else if (items == 1 && SvPOK(ST(0)) && SvCUR(ST(0)) &&
|
|---|
| 452 | isALPHA(SvPVX(ST(0))[0]))
|
|---|
| 453 | drive = toUPPER(SvPVX(ST(0))[0]) - 'A' + 1;
|
|---|
| 454 | else
|
|---|
| 455 | croak("Usage: getdcwd(DRIVE)");
|
|---|
| 456 |
|
|---|
| 457 | New(0,dir,MAXPATHLEN,char);
|
|---|
| 458 | if (_getdcwd(drive, dir, MAXPATHLEN)) {
|
|---|
| 459 | sv_setpvn(TARG, dir, strlen(dir));
|
|---|
| 460 | SvPOK_only(TARG);
|
|---|
| 461 | }
|
|---|
| 462 | else
|
|---|
| 463 | sv_setsv(TARG, &PL_sv_undef);
|
|---|
| 464 |
|
|---|
| 465 | Safefree(dir);
|
|---|
| 466 |
|
|---|
| 467 | XSprePUSH; PUSHTARG;
|
|---|
| 468 | #ifndef INCOMPLETE_TAINTS
|
|---|
| 469 | SvTAINTED_on(TARG);
|
|---|
| 470 | #endif
|
|---|
| 471 | }
|
|---|
| 472 |
|
|---|
| 473 | #endif
|
|---|
