On some operating systems, notices of output errors are sometimes
delayed until you close the file. However, in the normal case
coreutils 'cat' doesn't check the return value from
'close(STDOUT_FILENO)'. I installed this patch.
2005-12-13 Paul Eggert <[EMAIL PROTECTED]>
* src/cat.c (main): Check for close (STDOUT_FILENO) failure.
--- src/cat.c 11 Jul 2005 18:21:11 -0000 1.105
+++ src/cat.c 14 Dec 2005 01:39:46 -0000 1.106
@@ -555,7 +555,9 @@ main (int argc, char **argv)
textdomain (PACKAGE);
/* Arrange to close stdout if we exit via the
- case_GETOPT_HELP_CHAR or case_GETOPT_VERSION_CHAR code. */
+ case_GETOPT_HELP_CHAR or case_GETOPT_VERSION_CHAR code.
+ Normally STDOUT_FILENO is used rather than stdout, so
+ close_stdout does nothing. */
atexit (close_stdout);
/* Parse command line options. */
@@ -766,5 +768,8 @@ main (int argc, char **argv)
if (have_read_stdin && close (STDIN_FILENO) < 0)
error (EXIT_FAILURE, errno, _("closing standard input"));
+ if (close (STDOUT_FILENO) != 0)
+ error (EXIT_FAILURE, errno, _("write error"));
+
exit (ok ? EXIT_SUCCESS : EXIT_FAILURE);
}
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