683d108387
1) Add usage(). 2) Idiomatic argv0-setter. We don't use arg.h, as we do not process flags or arguments. 3) Remove program-name from eprintf-call. This is done in the eprintf- function itself when the DEBUG-define is set. We'll activate it by default later. 4) Add empty line before return.
30 lines
378 B
C
30 lines
378 B
C
/* See LICENSE file for copyright and license details. */
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#include <stdio.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\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 *login;
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argv0 = argv[0], argc--, argv++;
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if (argc)
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usage();
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if ((login = getlogin()))
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puts(login);
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else
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eprintf("no login name\n");
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return 0;
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}
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