/* closeout.c - close standard output
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004 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
# include <config.h>
#endif
-#if ENABLE_NLS
-# include <libintl.h>
-# define _(Text) gettext (Text)
-#else
-# define _(Text) Text
-#endif
-
-#if HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-#ifndef EXIT_FAILURE
-# define EXIT_FAILURE 1
-#endif
+#include "closeout.h"
+#include <stdio.h>
#include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
-#include <stdio.h>
-#include "closeout.h"
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
#include "error.h"
+#include "exitfail.h"
+#include "quotearg.h"
+#include "unlocked-io.h"
+#include "__fpending.h"
+
+static const char *file_name;
-/* Close standard output, exiting with status STATUS on failure.
+/* Set the file name to be reported in the event an error is detected
+ by close_stdout. */
+void
+close_stdout_set_file_name (const char *file)
+{
+ file_name = file;
+}
+
+/* Close standard output, exiting with status 'exit_failure' on failure.
If a program writes *anything* to stdout, that program should `fflush'
stdout and make sure that it succeeds before exiting. Otherwise,
suppose that you go to the extreme of checking the return status
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_stdout_status (int status)
-{
- if (ferror (stdout))
- error (status, 0, _("write error"));
- if (fclose (stdout) != 0)
- error (status, errno, _("write error"));
-}
-/* Close standard output, exiting with status EXIT_FAILURE on failure. */
void
close_stdout (void)
{
- close_stdout_status (EXIT_FAILURE);
+ int e = ferror (stdout) ? 0 : -1;
+
+ /* If the stream's error bit is clear and there is nothing to flush,
+ then return right away. */
+ if (e && __fpending (stdout) == 0)
+ return;
+
+ if (fclose (stdout) != 0)
+ e = errno;
+
+ if (0 <= e)
+ {
+ char const *write_error = _("write error");
+ if (file_name)
+ error (exit_failure, e, "%s: %s", quotearg_colon (file_name),
+ write_error);
+ else
+ error (exit_failure, e, "%s", write_error);
+ }
}