[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Cvs-cvs] Changes to ccvs/lib/openat.c
From: |
Derek Robert Price |
Subject: |
[Cvs-cvs] Changes to ccvs/lib/openat.c |
Date: |
Mon, 03 Oct 2005 22:35:38 -0400 |
Index: ccvs/lib/openat.c
diff -u ccvs/lib/openat.c:1.4 ccvs/lib/openat.c:1.5
--- ccvs/lib/openat.c:1.4 Mon Sep 19 21:26:13 2005
+++ ccvs/lib/openat.c Tue Oct 4 02:34:54 2005
@@ -29,8 +29,7 @@
#include <errno.h>
#include <fcntl.h>
-#include "error.h"
-#include "exitfail.h"
+#include "dirname.h" /* solely for definition of IS_ABSOLUTE_FILE_NAME */
#include "save-cwd.h"
#include "gettext.h"
@@ -64,12 +63,11 @@
va_end (arg);
}
- if (fd == AT_FDCWD || *file == '/')
+ if (fd == AT_FDCWD || IS_ABSOLUTE_FILE_NAME (file))
return open (file, flags, mode);
if (save_cwd (&saved_cwd) != 0)
- error (exit_failure, errno,
- _("openat: unable to record current working directory"));
+ openat_save_fail (errno);
if (fchdir (fd) != 0)
{
@@ -83,8 +81,7 @@
saved_errno = errno;
if (restore_cwd (&saved_cwd) != 0)
- error (exit_failure, errno,
- _("openat: unable to restore working directory"));
+ openat_restore_fail (errno);
free_cwd (&saved_cwd);
@@ -92,13 +89,20 @@
return new_fd;
}
+#if !HAVE_FDOPENDIR
+
/* Replacement for Solaris' function by the same name.
<http://www.google.com/search?q=fdopendir+site:docs.sun.com>
Simulate it by doing save_cwd/fchdir/opendir(".")/restore_cwd.
If either the save_cwd or the restore_cwd fails (relatively unlikely,
and usually indicative of a problem that deserves close attention),
then give a diagnostic and exit nonzero.
- Otherwise, this function works just like Solaris' fdopendir. */
+ Otherwise, this function works just like Solaris' fdopendir.
+
+ W A R N I N G:
+ Unlike the other fd-related functions here, this one
+ effectively consumes its FD parameter. The caller should not
+ close or otherwise manipulate FD if this function returns successfully. */
DIR *
fdopendir (int fd)
{
@@ -106,12 +110,8 @@
int saved_errno;
DIR *dir;
- if (fd == AT_FDCWD)
- return opendir (".");
-
if (save_cwd (&saved_cwd) != 0)
- error (exit_failure, errno,
- _("fdopendir: unable to record current working directory"));
+ openat_save_fail (errno);
if (fchdir (fd) != 0)
{
@@ -125,15 +125,18 @@
saved_errno = errno;
if (restore_cwd (&saved_cwd) != 0)
- error (exit_failure, errno,
- _("fdopendir: unable to restore working directory"));
+ openat_restore_fail (errno);
free_cwd (&saved_cwd);
+ if (dir)
+ close (fd);
errno = saved_errno;
return dir;
}
+#endif
+
/* Replacement for Solaris' function by the same name.
<http://www.google.com/search?q=fstatat+site:docs.sun.com>
Simulate it by doing save_cwd/fchdir/(stat|lstat)/restore_cwd.
@@ -154,8 +157,7 @@
: stat (file, st));
if (save_cwd (&saved_cwd) != 0)
- error (exit_failure, errno,
- _("fstatat: unable to record current working directory"));
+ openat_save_fail (errno);
if (fchdir (fd) != 0)
{
@@ -171,8 +173,47 @@
saved_errno = errno;
if (restore_cwd (&saved_cwd) != 0)
- error (exit_failure, errno,
- _("fstatat: unable to restore working directory"));
+ openat_restore_fail (errno);
+
+ free_cwd (&saved_cwd);
+
+ errno = saved_errno;
+ return err;
+}
+
+/* Replacement for Solaris' function by the same name.
+ <http://www.google.com/search?q=unlinkat+site:docs.sun.com>
+ Simulate it by doing save_cwd/fchdir/(unlink|rmdir)/restore_cwd.
+ If either the save_cwd or the restore_cwd fails (relatively unlikely,
+ and usually indicative of a problem that deserves close attention),
+ then give a diagnostic and exit nonzero.
+ Otherwise, this function works just like Solaris' unlinkat. */
+int
+unlinkat (int fd, char const *file, int flag)
+{
+ struct saved_cwd saved_cwd;
+ int saved_errno;
+ int err;
+
+ if (fd == AT_FDCWD)
+ return (flag == AT_REMOVEDIR ? rmdir (file) : unlink (file));
+
+ if (save_cwd (&saved_cwd) != 0)
+ openat_save_fail (errno);
+
+ if (fchdir (fd) != 0)
+ {
+ saved_errno = errno;
+ free_cwd (&saved_cwd);
+ errno = saved_errno;
+ return -1;
+ }
+
+ err = (flag == AT_REMOVEDIR ? rmdir (file) : unlink (file));
+ saved_errno = errno;
+
+ if (restore_cwd (&saved_cwd) != 0)
+ openat_restore_fail (errno);
free_cwd (&saved_cwd);
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Cvs-cvs] Changes to ccvs/lib/openat.c,
Derek Robert Price <=