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This commit is contained in:
Jim Meyering 2003-03-05 07:24:22 +00:00
parent 6d53130e35
commit 998e0827e4
1 changed files with 10 additions and 2 deletions
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12
lib/save-cwd.c
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@ -15,7 +15,7 @@
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Jim Meyering <meyering@na-net.ornl.gov>. */
/* Written by Jim Meyering. */
#if HAVE_CONFIG_H
# include "config.h"
@ -57,7 +57,15 @@ extern int errno;
use free_cwd to perform the necessary free or close. Upon failure,
no memory is allocated, any locally opened file descriptors are
closed; return non-zero -- in that case, free_cwd need not be
called, but doing so is ok. Otherwise, return zero. */
called, but doing so is ok. Otherwise, return zero.
The `raison d'etre' for this interface is that some systems lack
support for fchdir, and getcwd is not robust or as efficient.
So, we prefer to use the open/fchdir approach, but fall back on
getcwd if necessary. Some systems lack fchdir altogether: OS/2,
Cygwin (as of March 2003), SCO Xenix. At least SunOS4 and Irix 5.3
provide the function, yet it doesn't work for partitions on which
auditing is enabled. */
int
save_cwd (struct saved_cwd *cwd)