add vdioctl

[unix-history] / usr / src / old / whoami / whoami.c

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1980 Regents of the University of California.\n\
 All rights reserved.\n";
#endif not lint

#ifndef lint
static char sccsid[] = "@(#)whoami.c	5.1 (Berkeley) %G%";
#endif not lint

#include <pwd.h>
/*
 * whoami
 */
struct	passwd *getpwuid();

main()
{
	register struct passwd *pp;

	pp = getpwuid(geteuid());
	if (pp == 0) {
		printf("Intruder alert.\n");
		exit(1);
	}
	printf("%s\n", pp->pw_name);
	exit(0);
}