octave-nkf/gnulib-hg: lib/getcwd.c annotate

annotate lib/getcwd.c @ 6949:96af1224c6fa

* backupfile.c, dirfd.h, fts.c, getcwd.c, glob.c, glob_.h: Ignore the obsolescent !HAVE_DIRENT_H case. Consolidate NAMLEN macros into the GNU _D_EXACT_NAMLEN. * savedir.c: Likewise. (savedirstream): Use _D_EXACT_NAMLEN in preference to strlen. * backupfile.m4, d-ino.m4, d-type.m4, dirfd.m4, fts.m4, getcwd.m4: * savedir.m4: Ignore the obsolescent !HAVE_DIRENT_H case. Consolidate NAMLEN macros into the GNU _D_EXACT_NAMLEN.

author	Paul Eggert <eggert@cs.ucla.edu>
date	Tue, 11 Jul 2006 06:02:51 +0000
parents	d68ff786c180
children	8a1a9361108c

rev	line source
6647 ca74ccfe8d1b * getcwd.c (AT_FDCWD): Work around a bug in Solaris 9 and 10, where Paul Eggert <eggert@cs.ucla.edu> parents: 6439 diff changeset	1 /* Copyright (C) 1991,92,93,94,95,96,97,98,99,2004,2005,2006 Free Software
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	2 Foundation, Inc.
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	3 This file is part of the GNU C Library.
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	4
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	5 This program is free software; you can redistribute it and/or modify
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	6 it under the terms of the GNU General Public License as published by
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	7 the Free Software Foundation; either version 2, or (at your option)
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	8 any later version.
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	9
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	10 This program is distributed in the hope that it will be useful,
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	13 GNU General Public License for more details.
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	14
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	15 You should have received a copy of the GNU General Public License along
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	16 with this program; if not, write to the Free Software Foundation,
5848 a48fb0e98c8c * empty log message * Paul Eggert <eggert@cs.ucla.edu> parents: 5499 diff changeset	17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	18
6305 a91f807a1459 Change #ifdef<TAB>HAVE_CONFIG_H to #ifdef HAVE_CONFIG_H. Jim Meyering <jim@meyering.net> parents: 6275 diff changeset	19 #ifdef HAVE_CONFIG_H
6259 96c32553b4c6 Use a consistent style for including <config.h>. Paul Eggert <eggert@cs.ucla.edu> parents: 5955 diff changeset	20 # include <config.h>
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	21 #endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	22
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	23 #if !_LIBC
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	24 # include "getcwd.h"
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	25 #endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	26
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	27 #include <errno.h>
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	28 #include <sys/types.h>
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	29 #include <sys/stat.h>
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	30 #include <stdbool.h>
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	31 #include <stddef.h>
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	32
5955 ace6ea191424 Assume HAVE_FCNTL_H (i.e., include <fcntl.h> unconditionally, Jim Meyering <jim@meyering.net> parents: 5907 diff changeset	33 #include <fcntl.h> /* For AT_FDCWD on Solaris 9. */
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	34
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	35 #ifndef __set_errno
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	36 # define __set_errno(val) (errno = (val))
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	37 #endif
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	38
6949 96af1224c6fa * backupfile.c, dirfd.h, fts.c, getcwd.c, glob.c, glob_.h: Paul Eggert <eggert@cs.ucla.edu> parents: 6934 diff changeset	39 #include <dirent.h>
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	40 #ifndef _D_EXACT_NAMLEN
6934 d68ff786c180 * lib/getloadavg.c: Use __VMS, not VMS. Paul Eggert <eggert@cs.ucla.edu> parents: 6912 diff changeset	41 # define _D_EXACT_NAMLEN(d) strlen ((d)->d_name)
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	42 #endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	43 #ifndef _D_ALLOC_NAMLEN
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	44 # define _D_ALLOC_NAMLEN(d) (_D_EXACT_NAMLEN (d) + 1)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	45 #endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	46
6275 fd0ccce602e4 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6259 diff changeset	47 #include <unistd.h>
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	48 #include <stdlib.h>
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	49 #include <string.h>
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	50
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	51 #if _LIBC
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	52 # ifndef mempcpy
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	53 # define mempcpy __mempcpy
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	54 # endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	55 #else
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	56 # include "mempcpy.h"
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	57 #endif
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	58
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	59 #include <limits.h>
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	60
6647 ca74ccfe8d1b * getcwd.c (AT_FDCWD): Work around a bug in Solaris 9 and 10, where Paul Eggert <eggert@cs.ucla.edu> parents: 6439 diff changeset	61 /* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
ca74ccfe8d1b * getcwd.c (AT_FDCWD): Work around a bug in Solaris 9 and 10, where Paul Eggert <eggert@cs.ucla.edu> parents: 6439 diff changeset	62 value exceeds INT_MAX, so its use as an int doesn't conform to the
ca74ccfe8d1b * getcwd.c (AT_FDCWD): Work around a bug in Solaris 9 and 10, where Paul Eggert <eggert@cs.ucla.edu> parents: 6439 diff changeset	63 C standard, and GCC and Sun C complain in some cases. */
ca74ccfe8d1b * getcwd.c (AT_FDCWD): Work around a bug in Solaris 9 and 10, where Paul Eggert <eggert@cs.ucla.edu> parents: 6439 diff changeset	64 #if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
ca74ccfe8d1b * getcwd.c (AT_FDCWD): Work around a bug in Solaris 9 and 10, where Paul Eggert <eggert@cs.ucla.edu> parents: 6439 diff changeset	65 # undef AT_FDCWD
ca74ccfe8d1b * getcwd.c (AT_FDCWD): Work around a bug in Solaris 9 and 10, where Paul Eggert <eggert@cs.ucla.edu> parents: 6439 diff changeset	66 # define AT_FDCWD (-3041965)
ca74ccfe8d1b * getcwd.c (AT_FDCWD): Work around a bug in Solaris 9 and 10, where Paul Eggert <eggert@cs.ucla.edu> parents: 6439 diff changeset	67 #endif
ca74ccfe8d1b * getcwd.c (AT_FDCWD): Work around a bug in Solaris 9 and 10, where Paul Eggert <eggert@cs.ucla.edu> parents: 6439 diff changeset	68
5499 41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	69 #ifdef ENAMETOOLONG
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	70 # define is_ENAMETOOLONG(x) ((x) == ENAMETOOLONG)
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	71 #else
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	72 # define is_ENAMETOOLONG(x) 0
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	73 #endif
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	74
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	75 #ifndef MAX
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	76 # define MAX(a, b) ((a) < (b) ? (b) : (a))
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	77 #endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	78 #ifndef MIN
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	79 # define MIN(a, b) ((a) < (b) ? (a) : (b))
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	80 #endif
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	81
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	82 #ifndef PATH_MAX
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	83 # ifdef MAXPATHLEN
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	84 # define PATH_MAX MAXPATHLEN
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	85 # else
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	86 # define PATH_MAX 1024
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	87 # endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	88 #endif
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	89
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	90 #if D_INO_IN_DIRENT
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	91 # define MATCHING_INO(dp, ino) ((dp)->d_ino == (ino))
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	92 #else
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	93 # define MATCHING_INO(dp, ino) true
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	94 #endif
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	95
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	96 #if !_LIBC
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	97 # define __getcwd getcwd
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	98 # define __lstat lstat
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	99 # define __closedir closedir
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	100 # define __opendir opendir
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	101 # define __readdir readdir
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	102 #endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	103
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	104 /* Get the name of the current working directory, and put it in SIZE
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	105 bytes of BUF. Returns NULL if the directory couldn't be determined or
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	106 SIZE was too small. If successful, returns BUF. In GNU, if BUF is
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	107 NULL, an array is allocated with `malloc'; the array is SIZE bytes long,
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	108 unless SIZE == 0, in which case it is as big as necessary. */
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	109
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	110 char *
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	111 __getcwd (char *buf, size_t size)
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	112 {
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	113 /* Lengths of big file name components and entire file names, and a
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	114 deep level of file name nesting. These numbers are not upper
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	115 bounds; they are merely large values suitable for initial
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	116 allocations, designed to be large enough for most real-world
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	117 uses. */
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	118 enum
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	119 {
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	120 BIG_FILE_NAME_COMPONENT_LENGTH = 255,
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	121 BIG_FILE_NAME_LENGTH = MIN (4095, PATH_MAX - 1),
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	122 DEEP_NESTING = 100
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	123 };
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	124
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	125 #ifdef AT_FDCWD
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	126 int fd = AT_FDCWD;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	127 bool fd_needs_closing = false;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	128 #else
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	129 char dots[DEEP_NESTING * sizeof ".." + BIG_FILE_NAME_COMPONENT_LENGTH + 1];
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	130 char *dotlist = dots;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	131 size_t dotsize = sizeof dots;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	132 size_t dotlen = 0;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	133 #endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	134 DIR *dirstream = NULL;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	135 dev_t rootdev, thisdev;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	136 ino_t rootino, thisino;
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	137 char *dir;
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	138 register char *dirp;
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	139 struct stat st;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	140 size_t allocated = size;
5499 41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	141 size_t used;
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	142
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	143 #if HAVE_PARTLY_WORKING_GETCWD && !defined AT_FDCWD
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	144 /* The system getcwd works, except it sometimes fails when it
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	145 shouldn't, setting errno to ERANGE, ENAMETOOLONG, or ENOENT. If
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	146 AT_FDCWD is not defined, the algorithm below is O(N**2) and this
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	147 is much slower than the system getcwd (at least on GNU/Linux).
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	148 So trust the system getcwd's results unless they look
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	149 suspicious. */
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	150 # undef getcwd
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	151 dir = getcwd (buf, size);
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	152 if (dir \|\| (errno != ERANGE && !is_ENAMETOOLONG (errno) && errno != ENOENT))
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	153 return dir;
5499 41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	154 #endif
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	155
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	156 if (size == 0)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	157 {
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	158 if (buf != NULL)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	159 {
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	160 __set_errno (EINVAL);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	161 return NULL;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	162 }
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	163
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	164 allocated = BIG_FILE_NAME_LENGTH + 1;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	165 }
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	166
5499 41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	167 if (buf == NULL)
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	168 {
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	169 dir = malloc (allocated);
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	170 if (dir == NULL)
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	171 return NULL;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	172 }
5499 41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	173 else
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	174 dir = buf;
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	175
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	176 dirp = dir + allocated;
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	177 *--dirp = '\0';
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	178
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	179 if (__lstat (".", &st) < 0)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	180 goto lose;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	181 thisdev = st.st_dev;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	182 thisino = st.st_ino;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	183
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	184 if (__lstat ("/", &st) < 0)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	185 goto lose;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	186 rootdev = st.st_dev;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	187 rootino = st.st_ino;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	188
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	189 while (!(thisdev == rootdev && thisino == rootino))
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	190 {
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	191 struct dirent *d;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	192 dev_t dotdev;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	193 ino_t dotino;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	194 bool mount_point;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	195 int parent_status;
6439 3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	196 size_t dirroom;
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	197 size_t namlen;
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	198 bool use_d_ino = true;
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	199
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	200 /* Look at the parent directory. */
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	201 #ifdef AT_FDCWD
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	202 fd = openat (fd, "..", O_RDONLY);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	203 if (fd < 0)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	204 goto lose;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	205 fd_needs_closing = true;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	206 parent_status = fstat (fd, &st);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	207 #else
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	208 dotlist[dotlen++] = '.';
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	209 dotlist[dotlen++] = '.';
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	210 dotlist[dotlen] = '\0';
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	211 parent_status = __lstat (dotlist, &st);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	212 #endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	213 if (parent_status != 0)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	214 goto lose;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	215
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	216 if (dirstream && __closedir (dirstream) != 0)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	217 {
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	218 dirstream = NULL;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	219 goto lose;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	220 }
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	221
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	222 /* Figure out if this directory is a mount point. */
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	223 dotdev = st.st_dev;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	224 dotino = st.st_ino;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	225 mount_point = dotdev != thisdev;
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	226
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	227 /* Search for the last directory. */
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	228 #ifdef AT_FDCWD
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	229 dirstream = fdopendir (fd);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	230 if (dirstream == NULL)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	231 goto lose;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	232 fd_needs_closing = false;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	233 #else
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	234 dirstream = __opendir (dotlist);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	235 if (dirstream == NULL)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	236 goto lose;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	237 dotlist[dotlen++] = '/';
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	238 #endif
6439 3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	239 for (;;)
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	240 {
6439 3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	241 /* Clear errno to distinguish EOF from error if readdir returns
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	242 NULL. */
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	243 __set_errno (0);
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	244 d = __readdir (dirstream);
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	245
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	246 /* When we've iterated through all directory entries without finding
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	247 one with a matching d_ino, rewind the stream and consider each
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	248 name again, but this time, using lstat. This is necessary in a
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	249 chroot on at least one system (glibc-2.3.6 + linux 2.6.12), where
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	250 .., ../.., ../../.., etc. all had the same device number, yet the
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	251 d_ino values for entries in / did not match those obtained
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	252 via lstat. */
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	253 if (d == NULL && errno == 0 && use_d_ino)
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	254 {
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	255 use_d_ino = false;
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	256 rewinddir (dirstream);
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	257 d = __readdir (dirstream);
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	258 }
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	259
6439 3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	260 if (d == NULL)
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	261 {
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	262 if (errno == 0)
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	263 /* EOF on dirstream, which can mean e.g., that the current
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	264 directory has been removed. */
6439 3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	265 __set_errno (ENOENT);
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	266 goto lose;
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	267 }
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	268 if (d->d_name[0] == '.' &&
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	269 (d->d_name[1] == '\0' \|\|
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	270 (d->d_name[1] == '.' && d->d_name[2] == '\0')))
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	271 continue;
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	272
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	273 if (use_d_ino)
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	274 {
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	275 bool match = (MATCHING_INO (d, thisino) \|\| mount_point);
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	276 if (! match)
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	277 continue;
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	278 }
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	279
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	280 {
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	281 int entry_status;
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	282 #ifdef AT_FDCWD
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	283 entry_status = fstatat (fd, d->d_name, &st, AT_SYMLINK_NOFOLLOW);
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	284 #else
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	285 /* Compute size needed for this file name, or for the file
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	286 name ".." in the same directory, whichever is larger.
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	287 Room for ".." might be needed the next time through
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	288 the outer loop. */
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	289 size_t name_alloc = _D_ALLOC_NAMLEN (d);
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	290 size_t filesize = dotlen + MAX (sizeof "..", name_alloc);
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	291
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	292 if (filesize < dotlen)
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	293 goto memory_exhausted;
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	294
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	295 if (dotsize < filesize)
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	296 {
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	297 /* My, what a deep directory tree you have, Grandma. */
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	298 size_t newsize = MAX (filesize, dotsize * 2);
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	299 size_t i;
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	300 if (newsize < dotsize)
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	301 goto memory_exhausted;
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	302 if (dotlist != dots)
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	303 free (dotlist);
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	304 dotlist = malloc (newsize);
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	305 if (dotlist == NULL)
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	306 goto lose;
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	307 dotsize = newsize;
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	308
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	309 i = 0;
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	310 do
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	311 {
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	312 dotlist[i++] = '.';
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	313 dotlist[i++] = '.';
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	314 dotlist[i++] = '/';
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	315 }
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	316 while (i < dotlen);
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	317 }
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	318
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	319 memcpy (dotlist + dotlen, d->d_name, _D_ALLOC_NAMLEN (d));
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	320 entry_status = __lstat (dotlist, &st);
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	321 #endif
6912 314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	322 /* We don't fail here if we cannot stat() a directory entry.
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	323 This can happen when (network) file systems fail. If this
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	324 entry is in fact the one we are looking for we will find
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	325 out soon as we reach the end of the directory without
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	326 having found anything. */
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	327 if (entry_status == 0 && S_ISDIR (st.st_mode)
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	328 && st.st_dev == thisdev && st.st_ino == thisino)
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	329 break;
314715e0260d Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6647 diff changeset	330 }
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	331 }
6439 3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	332
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	333 dirroom = dirp - dir;
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	334 namlen = _D_EXACT_NAMLEN (d);
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	335
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	336 if (dirroom <= namlen)
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	337 {
6439 3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	338 if (size != 0)
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	339 {
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	340 __set_errno (ERANGE);
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	341 goto lose;
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	342 }
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	343 else
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	344 {
6439 3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	345 char *tmp;
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	346 size_t oldsize = allocated;
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	347
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	348 allocated += MAX (allocated, namlen);
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	349 if (allocated < oldsize
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	350 \|\| ! (tmp = realloc (dir, allocated)))
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	351 goto memory_exhausted;
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	352
6439 3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	353 /* Move current contents up to the end of the buffer.
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	354 This is guaranteed to be non-overlapping. */
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	355 dirp = memcpy (tmp + allocated - (oldsize - dirroom),
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	356 tmp + dirroom,
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	357 oldsize - dirroom);
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	358 dir = tmp;
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	359 }
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	360 }
6439 3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	361 dirp -= namlen;
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	362 memcpy (dirp, d->d_name, namlen);
3fd547210013 * getcwd.c (__getcwd): Don't assume that system calls after readdir Paul Eggert <eggert@cs.ucla.edu> parents: 6305 diff changeset	363 *--dirp = '/';
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	364
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	365 thisdev = dotdev;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	366 thisino = dotino;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	367 }
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	368
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	369 if (dirstream && __closedir (dirstream) != 0)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	370 {
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	371 dirstream = NULL;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	372 goto lose;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	373 }
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	374
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	375 if (dirp == &dir[allocated - 1])
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	376 *--dirp = '/';
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	377
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	378 #ifndef AT_FDCWD
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	379 if (dotlist != dots)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	380 free (dotlist);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	381 #endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	382
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	383 used = dir + allocated - dirp;
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	384 memmove (dir, dirp, used);
5499 41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	385
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	386 if (buf == NULL && size == 0)
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	387 /* Ensure that the buffer is only as large as necessary. */
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	388 buf = realloc (dir, used);
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	389
5499 41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	390 if (buf == NULL)
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	391 /* Either buf was NULL all along, or `realloc' failed but
41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	392 we still have the original string. */
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	393 buf = dir;
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	394
5499 41fd04e6a198 (is_ENAMETOOLONG): New macro. Paul Eggert <eggert@cs.ucla.edu> parents: 5491 diff changeset	395 return buf;
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	396
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	397 memory_exhausted:
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	398 __set_errno (ENOMEM);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	399 lose:
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	400 {
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	401 int save = errno;
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	402 if (dirstream)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	403 __closedir (dirstream);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	404 #ifdef AT_FDCWD
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	405 if (fd_needs_closing)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	406 close (fd);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	407 #else
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	408 if (dotlist != dots)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	409 free (dotlist);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	410 #endif
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	411 if (buf == NULL)
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5848 diff changeset	412 free (dir);
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	413 __set_errno (save);
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	414 }
5136 3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	415 return NULL;
3d7c80bdf362 New getcwd module, imported from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: diff changeset	416 }
5491 b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	417
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	418 #ifdef weak_alias
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	419 weak_alias (__getcwd, getcwd)
b3d5c90efc81 Merge from coreutils for getcwd and HP-UX 11. Paul Eggert <eggert@cs.ucla.edu> parents: 5136 diff changeset	420 #endif

Mercurial > hg > octave-nkf > gnulib-hg

annotate lib/getcwd.c @ 6949:96af1224c6fa