X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=lib%2Fclosein.c;fp=lib%2Fclosein.c;h=0000000000000000000000000000000000000000;hb=20fcfc81ece044b8b0a6768ec6cf47be4e22a2e6;hp=20d5035eec0bcff85471d5024f4358a4baa60446;hpb=d57728a6ca2413a7c564d8b7bb13d9e5a5a180f3;p=debian%2Fgzip

diff --git a/lib/closein.c b/lib/closein.c
deleted file mode 100644
index 20d5035..0000000
--- a/lib/closein.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/* Close standard input, rewinding seekable stdin if necessary.
-
-   Copyright (C) 2007, 2009-2013 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>
-
-#include "closein.h"
-
-#include <errno.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <unistd.h>
-
-#include "gettext.h"
-#define _(msgid) gettext (msgid)
-
-#include "close-stream.h"
-#include "closeout.h"
-#include "error.h"
-#include "exitfail.h"
-#include "freadahead.h"
-#include "quotearg.h"
-
-static const char *file_name;
-
-/* Set the file name to be reported in the event an error is detected
-   on stdin by close_stdin.  See also close_stdout_set_file_name, if
-   an error is detected when closing stdout.  */
-void
-close_stdin_set_file_name (const char *file)
-{
-  file_name = file;
-}
-
-/* Close standard input, rewinding any unused input if stdin is
-   seekable.  On error, issue a diagnostic and _exit with status
-   'exit_failure'.  Then call close_stdout.
-
-   Most programs can get by with close_stdout.  close_stdin is only
-   needed when a program wants to guarantee that partially read input
-   from seekable stdin is not consumed, for any subsequent clients.
-   For example, POSIX requires that these two commands behave alike:
-
-     (sed -ne 1q; cat) < file
-     tail -n +2 file
-
-   Since close_stdin is commonly registered via 'atexit', POSIX
-   and the C standard both say that it should not call 'exit',
-   because the behavior is undefined if 'exit' is called more than
-   once.  So it calls '_exit' instead of 'exit'.  If close_stdin
-   is registered via atexit before other functions are registered,
-   the other functions can act before this _exit is invoked.
-
-   Applications that use close_stdout should flush any streams other
-   than stdin, stdout, and stderr before exiting, since the call to
-   _exit will bypass other buffer flushing.  Applications should be
-   flushing and closing other streams anyway, to check for I/O errors.
-   Also, applications should not use tmpfile, since _exit can bypass
-   the removal of these files.
-
-   It's important to detect such failures and exit nonzero because many
-   tools (most notably 'make' and other build-management systems) depend
-   on being able to detect failure in other tools via their exit status.  */
-
-void
-close_stdin (void)
-{
-  bool fail = false;
-
-  /* There is no need to flush stdin if we can determine quickly that stdin's
-     input buffer is empty; in this case we know that if stdin is seekable,
-     (fseeko (stdin, 0, SEEK_CUR), ftello (stdin))
-     == lseek (0, 0, SEEK_CUR).  */
-  if (freadahead (stdin) > 0)
-    {
-      /* Only attempt flush if stdin is seekable, as fflush is entitled to
-         fail on non-seekable streams.  */
-      if (fseeko (stdin, 0, SEEK_CUR) == 0 && fflush (stdin) != 0)
-        fail = true;
-    }
-  if (close_stream (stdin) != 0)
-    fail = true;
-  if (fail)
-    {
-      /* Report failure, but defer exit until after closing stdout,
-         since the failure report should still be flushed.  */
-      char const *close_error = _("error closing file");
-      if (file_name)
-        error (0, errno, "%s: %s", quotearg_colon (file_name),
-               close_error);
-      else
-        error (0, errno, "%s", close_error);
-    }
-
-  close_stdout ();
-
-  if (fail)
-    _exit (exit_failure);
-}