45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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* Copyright (c) 1988 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the University of California, Berkeley. The name of the
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* University may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef lint
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char copyright[] =
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"@(#) Copyright (c) 1988 Regents of the University of California.\n\
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All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)whoami.c 1.1 92/07/30 SMI"; /* from UCB 5.3 6/29/88 */
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#endif not lint
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#include <sys/types.h>
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#include <pwd.h>
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main()
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{
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struct passwd *p, *getpwuid();
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uid_t uid;
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uid = geteuid();
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if (!(p = getpwuid((int) uid))) {
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printf("whoami: no login associated with uid %u.\n", uid);
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exit(1);
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}
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printf("%s\n", p->pw_name);
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exit(0);
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/* NOTREACHED */
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}
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