Strange pipe behaviour in the latest svn version

[Bernhard Fischer]

On Thu, Oct 19, 2006 at 07:30:56PM +0200, Denis Vlasenko wrote:
>On Wednesday 18 October 2006 07:41, Alexander Griesser wrote:

>Bingo! static busybox doesn't fflush stdout!
>This workaround made readlink work:

No! :)

>int readlink_main(int argc, char **argv)
>{
>        char *buf;
>        unsigned opt = ENABLE_FEATURE_READLINK_FOLLOW ?
>                        getopt32(argc, argv, "f") : 0;
>
>        if (argc != (ENABLE_FEATURE_READLINK_FOLLOW ? optind + 1 : 2))
>                        bb_show_usage();
>
>        if (opt & READLINK_FLAG_f)
>                buf = realpath(argv[optind], bb_common_bufsiz1);
>        else
>                buf = xreadlink(argv[ENABLE_FEATURE_READLINK_FOLLOW ? optind : 1]);
>
>        if (!buf)
>                return EXIT_FAILURE;
>        puts(buf);
->+       fflush(stdout);
>
>        if (ENABLE_FEATURE_CLEAN_UP && buf != bb_common_bufsiz1)
>                free(buf);
>
->        return EXIT_SUCCESS;
+	bb_fflush_stdout_and_exit(EXIT_SUCCESS);
>}
>
>Need to take a look how glibc managed to botch it...

Please don't botch busybox but reuse the stuff that is already there ;)
   text    data     bss     dec     hex filename
     98       0       0      98      62 debianutils/readlink.o.orig
    110       0       0     110      6e debianutils/readlink.o.vda
    103       0       0     103      67 debianutils/readlink.o.bb_fflush

cheers,