Only allow 'who' and 'who am i' as valid usages.
PR: 6294 Submitted by: Ruslan Ermilov <ru@ucb.crimea.ua>
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@ -45,7 +45,7 @@ static const char copyright[] =
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static char sccsid[] = "@(#)who.c 8.1 (Berkeley) 6/6/93";
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#endif
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static const char rcsid[] =
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"$Id: who.c,v 1.5 1997/08/26 11:14:57 charnier Exp $";
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"$Id: who.c,v 1.6 1998/04/26 19:10:51 des Exp $";
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#endif /* not lint */
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#include <sys/types.h>
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@ -54,6 +54,7 @@ static const char rcsid[] =
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#include <locale.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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@ -73,6 +74,9 @@ main(argc, argv)
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FILE *ufp, *file();
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char *t;
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if (getopt(argc, argv, "") != -1)
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usage();
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(void) setlocale(LC_TIME, "");
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switch (argc) {
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