-/* Work around the bug in some systems whereby rename fails when the source
- path has a trailing slash. The rename from SunOS 4.1.1_U1 has this bug.
- Copyright (C) 2001 Free Software Foundation, Inc.
+/* Work around rename bugs in some systems. On SunOS 4.1.1_U1
+ and mips-dec-ultrix4.4, rename fails when the source file has
+ a trailing slash. On mingw, rename fails when the destination
+ exists.
- This program is free software; you can redistribute it and/or modify
+ Copyright (C) 2001, 2002, 2003, 2005, 2006, 2009 Free Software Foundation, Inc.
+
+ 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
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* written by Volker Borchert */
#include <config.h>
-#include <stdio.h>
-#if HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
+#undef rename
+
+#if RENAME_DEST_EXISTS_BUG
+/* This replacement must come first, otherwise when cross
+ * compiling to Windows we will guess that it has the trailing
+ * slash bug and entirely miss this one. */
+#include <errno.h>
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+/* Rename the file SRC to DST. This replacement is necessary on
+ Windows, on which the system rename function will not replace
+ an existing DST. */
+int
+rpl_rename (char const *src, char const *dst)
+{
+ int error;
+
+ /* MoveFileEx works if SRC is a directory without any flags,
+ but fails with MOVEFILE_REPLACE_EXISTING, so try without
+ flags first. */
+ if (MoveFileEx (src, dst, 0))
+ return 0;
+
+ /* Retry with MOVEFILE_REPLACE_EXISTING if the move failed
+ * due to the destination already existing. */
+ error = GetLastError ();
+ if (error == ERROR_FILE_EXISTS || error == ERROR_ALREADY_EXISTS)
+ {
+ if (MoveFileEx (src, dst, MOVEFILE_REPLACE_EXISTING))
+ return 0;
+
+ error = GetLastError ();
+ }
+
+ switch (error)
+ {
+ case ERROR_FILE_NOT_FOUND:
+ case ERROR_PATH_NOT_FOUND:
+ case ERROR_BAD_PATHNAME:
+ case ERROR_DIRECTORY:
+ errno = ENOENT;
+ break;
+
+ case ERROR_ACCESS_DENIED:
+ case ERROR_SHARING_VIOLATION:
+ errno = EACCES;
+ break;
+
+ case ERROR_OUTOFMEMORY:
+ errno = ENOMEM;
+ break;
-#if HAVE_STRING_H
-# include <string.h>
-#else
-# include <strings.h>
+ case ERROR_CURRENT_DIRECTORY:
+ errno = EBUSY;
+ break;
+
+ case ERROR_NOT_SAME_DEVICE:
+ errno = EXDEV;
+ break;
+
+ case ERROR_WRITE_PROTECT:
+ errno = EROFS;
+ break;
+
+ case ERROR_WRITE_FAULT:
+ case ERROR_READ_FAULT:
+ case ERROR_GEN_FAILURE:
+ errno = EIO;
+ break;
+
+ case ERROR_HANDLE_DISK_FULL:
+ case ERROR_DISK_FULL:
+ case ERROR_DISK_TOO_FRAGMENTED:
+ errno = ENOSPC;
+ break;
+
+ case ERROR_FILE_EXISTS:
+ case ERROR_ALREADY_EXISTS:
+ errno = EEXIST;
+ break;
+
+ case ERROR_BUFFER_OVERFLOW:
+ case ERROR_FILENAME_EXCED_RANGE:
+ errno = ENAMETOOLONG;
+ break;
+
+ case ERROR_INVALID_NAME:
+ case ERROR_DELETE_PENDING:
+ errno = EPERM; /* ? */
+ break;
+
+#ifndef ERROR_FILE_TOO_LARGE
+/* This value is documented but not defined in all versions of windows.h. */
+#define ERROR_FILE_TOO_LARGE 223
#endif
+ case ERROR_FILE_TOO_LARGE:
+ errno = EFBIG;
+ break;
+
+ default:
+ errno = EINVAL;
+ break;
+ }
+
+ return -1;
+}
+#elif RENAME_TRAILING_SLASH_BUG
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
#include "dirname.h"
#include "xalloc.h"
-#ifndef HAVE_DECL_FREE
-"this configure-time declaration test was not run"
-#endif
-#if !HAVE_DECL_FREE
-void free ();
-#endif
-
-/* Rename the file SRC_PATH to DST_PATH, removing any trailing
- slashes from SRC_PATH. Needed for SunOS 4.1.1_U1. */
+/* Rename the file SRC to DST, removing any trailing
+ slashes from SRC. Needed for SunOS 4.1.1_U1. */
int
-rpl_rename (const char *src_path, const char *dst_path)
+rpl_rename (char const *src, char const *dst)
{
char *src_temp;
int ret_val;
- size_t s_len = strlen (src_path);
+ size_t s_len = strlen (src);
- if (s_len && src_path[s_len - 1] == '/')
+ if (s_len && src[s_len - 1] == '/')
{
- src_temp = xstrdup (src_path);
+ src_temp = xstrdup (src);
strip_trailing_slashes (src_temp);
}
else
- src_temp = (char *) src_path;
+ src_temp = (char *) src;
- ret_val = rename (src_temp, dst_path);
+ ret_val = rename (src_temp, dst);
- if (src_temp != src_path)
+ if (src_temp != src)
free (src_temp);
return ret_val;
}
+#endif /* RENAME_TRAILING_SLASH_BUG */
projects / gnulib.git / blobdiff