60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
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/*
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* discard
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* Written in 2020 by Lucas
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* CC0 1.0 Universal/Public domain - No rights reserved
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*
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* To the extent possible under law, the author(s) have dedicated all
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* copyright and related and neighboring rights to this software to the
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* public domain worldwide. This software is distributed without any
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* warranty. You should have received a copy of the CC0 Public Domain
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* Dedication along with this software. If not, see
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* <http://creativecommons.org/publicdomain/zero/1.0/>.
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*/
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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static void
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usage(void)
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{
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fprintf(stderr, "Usage: %s -t | -u\n", getprogname());
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exit(1);
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}
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int
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main(int argc, char *argv[])
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{
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int ch, do_tcp, do_udp;
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do_tcp = do_udp = 0;
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while ((ch = getopt(argc, argv, "tu")) != -1) {
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switch (ch) {
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case 't':
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do_tcp = 1;
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break;
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case 'u':
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do_udp = 1;
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break;
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc > 0)
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usage();
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if (!do_tcp && !do_udp)
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errx(1, "one of -t or -u is needed");
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if (do_tcp && do_udp)
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errx(1, "-t and -u are mutually exclusive");
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if (do_udp)
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errx(1, "UDP unimplemented");
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if (do_tcp)
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errx(1, "TCP unimplemented");
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return 0;
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}
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