34 lines
590 B
C
34 lines
590 B
C
/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "util.h"
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static void
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usage(void)
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{
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eprintf("usage: %s [name]\n", argv0);
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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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char host[HOST_NAME_MAX + 1];
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argv0 = *argv, argv0 ? (argc--, argv++) : (void *)0;
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if (!argc) {
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if (gethostname(host, sizeof(host)) < 0)
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eprintf("gethostname:");
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puts(host);
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} else if (argc == 1) {
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if (sethostname(argv[0], strlen(argv[0])) < 0)
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eprintf("sethostname:");
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} else {
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usage();
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}
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return fshut(stdout, "<stdout>");
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}
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