Imported Upstream version 1.23

[tar] / lib / full-write.c

diff --git a/lib/full-write.c b/lib/full-write.c
deleted file mode 100644 (file)
index 51f2d38..0000000
--- a/lib/full-write.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/* An interface to read and write that retries (if necessary) until complete.
-
-   Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-   2004, 2005, 2006 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 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
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   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, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#ifdef FULL_READ
-# include "full-read.h"
-#else
-# include "full-write.h"
-#endif
-
-#include <errno.h>
-
-#ifdef FULL_READ
-# include "safe-read.h"
-# define safe_rw safe_read
-# define full_rw full_read
-# undef const
-# define const /* empty */
-#else
-# include "safe-write.h"
-# define safe_rw safe_write
-# define full_rw full_write
-#endif
-
-#ifdef FULL_READ
-/* Set errno to zero upon EOF.  */
-# define ZERO_BYTE_TRANSFER_ERRNO 0
-#else
-/* Some buggy drivers return 0 when one tries to write beyond
-   a device's end.  (Example: Linux 1.2.13 on /dev/fd0.)
-   Set errno to ENOSPC so they get a sensible diagnostic.  */
-# define ZERO_BYTE_TRANSFER_ERRNO ENOSPC
-#endif
-
-/* Write(read) COUNT bytes at BUF to(from) descriptor FD, retrying if
-   interrupted or if a partial write(read) occurs.  Return the number
-   of bytes transferred.
-   When writing, set errno if fewer than COUNT bytes are written.
-   When reading, if fewer than COUNT bytes are read, you must examine
-   errno to distinguish failure from EOF (errno == 0).  */
-size_t
-full_rw (int fd, const void *buf, size_t count)
-{
-  size_t total = 0;
-  const char *ptr = (const char *) buf;
-
-  while (count > 0)
-    {
-      size_t n_rw = safe_rw (fd, ptr, count);
-      if (n_rw == (size_t) -1)
-       break;
-      if (n_rw == 0)
-       {
-         errno = ZERO_BYTE_TRANSFER_ERRNO;
-         break;
-       }
-      total += n_rw;
-      ptr += n_rw;
-      count -= n_rw;
-    }
-
-  return total;
-}