/* closeout.c - close standard output
- Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2001, 2002 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
+#include "closeout.h"
-#if HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-#ifndef EXIT_FAILURE
-# define EXIT_FAILURE 1
-#endif
+#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 int default_exit_status = EXIT_FAILURE;
+static const char *file_name;
-/* Set the value to be used for the exit status when close_stdout is called.
- This is useful when it is not convenient to call close_stdout_status,
- e.g., when close_stdout is called via atexit. */
+/* Set the file name to be reported in the event an error is detected
+ by close_stdout. */
void
-close_stdout_set_status (int status)
+close_stdout_set_file_name (const char *file)
{
- default_exit_status = status;
+ file_name = file;
}
-/* Close standard output, exiting with status STATUS on failure.
+/* 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 (default_exit_status);
+ 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);
+ }
}