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Dogcows Code - chaz/tar/blob - xgetcwd.c
95d0ab96cdf05ff0e608fdeb8eee34bdbe6734ee
1 /* xgetcwd.c -- return current directory with unlimited length
2 Copyright (C) 1992, 1996, 2000, 2001 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18 /* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
30 #include <sys/types.h>
37 # define getcwd(Buf, Max) getwd (Buf)
40 extern void *xmalloc ();
41 extern char *xstrdup ();
44 /* Return the current directory, newly allocated, arbitrarily long.
45 Return NULL and set errno on error. */
50 #if defined __GLIBC__ && __GLIBC__ >= 2
51 return getcwd (NULL
, 0);
58 ret
= getcwd (buf
, sizeof (buf
));
65 path_max
+= 2; /* The getcwd docs say to do this. */
69 char *cwd
= (char *) xmalloc (path_max
);
72 ret
= getcwd (cwd
, path_max
);
77 int save_errno
= errno
;
85 path_max
+= path_max
/ 16;
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