X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fsavewd.c;h=c4893ef6f1f877b75cae747a8222f5f21ac1a31e;hb=1056e42fdb8bb68c6afcdcb3a793558cae08ba44;hp=c9af955d6c8bd7313c49eb9e7c44a693dbbb2bfe;hpb=52034676ffeda4137d247a91c9c05366b1142686;p=gnulib.git

diff --git a/lib/savewd.c b/lib/savewd.c
index c9af955d6..c4893ef6f 100644
--- a/lib/savewd.c
+++ b/lib/savewd.c
@@ -1,11 +1,11 @@
 /* Save and restore the working directory, possibly using a child process.
 
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2007 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
@@ -25,15 +24,19 @@
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <signal.h>
 #include <stdbool.h>
+#include <stdlib.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
-#include "exit.h"
 #include "dirname.h"
 #include "fcntl-safer.h"
 
+#ifndef ESTALE
+# define ESTALE -1
+#endif
 
 /* Save the working directory into *WD, if it hasn't been saved
    already.  Return true if a child has been forked to do the real
@@ -53,7 +56,7 @@ savewd_save (struct savewd *wd)
 	    wd->val.fd = fd;
 	    break;
 	  }
-	if (errno != EACCES)
+	if (errno != EACCES && errno != ESTALE)
 	  {
 	    wd->state = ERROR_STATE;
 	    wd->val.errnum = errno;
@@ -102,7 +105,8 @@ savewd_chdir (struct savewd *wd, char const *dir, int options,
 
   /* Open the directory if requested, or if avoiding a race condition
      is requested and possible.  */
-  if (open_result || (options & (O_NOFOLLOW ? SAVEWD_CHDIR_NOFOLLOW : 0)))
+  if (open_result
+      || (options & (HAVE_WORKING_O_NOFOLLOW ? SAVEWD_CHDIR_NOFOLLOW : 0)))
     {
       fd = open (dir,
 		 (O_RDONLY | O_DIRECTORY | O_NOCTTY | O_NONBLOCK
@@ -201,13 +205,13 @@ savewd_restore (struct savewd *wd, int status)
 	  _exit (status);
 	if (0 < child)
 	  {
-	    int status;
-	    while (waitpid (child, &status, 0) < 0)
+	    int child_status;
+	    while (waitpid (child, &child_status, 0) < 0)
 	      assert (errno == EINTR);
 	    wd->val.child = -1;
-	    if (! WIFEXITED (status))
-	      raise (WTERMSIG (status));
-	    return WEXITSTATUS (status);
+	    if (! WIFEXITED (child_status))
+	      raise (WTERMSIG (child_status));
+	    return WEXITSTATUS (child_status);
 	  }
       }
       break;