xref: /illumos-gate/usr/src/ucbcmd/basename/basename.c (revision 18fdaaef96cf74126ff84be8aa0b50a701a3f374)
1 /*
2  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
3  * Use is subject to license terms.
4  */
5 
6 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
7 /*	  All Rights Reserved  	*/
8 
9 
10 /*
11  * Copyright (c) 1980 Regents of the University of California.
12  * All rights reserved. The Berkeley software License Agreement
13  * specifies the terms and conditions for redistribution.
14  */
15 
16 #pragma ident	"%Z%%M%	%I%	%E% SMI"
17 
18 #include <stdio.h>
19 #include <stdlib.h>
20 
21 int
22 main(int argc, char **argv)
23 {
24 	char *p1, *p2, *p3;
25 
26 	if (argc < 2) {
27 		(void) putchar('\n');
28 		exit(1);
29 	}
30 	p1 = argv[1];
31 	p2 = p1;
32 	while (*p1) {
33 		if (*p1++ == '/')
34 			p2 = p1;
35 	}
36 	if (argc > 2) {
37 		p3 = argv[2];
38 		while (*p3)
39 			p3++;
40 
41 		while (p3 > argv[2])
42 			if (p1 <= p2 || *--p3 != *--p1)
43 				goto output;
44 		*p1 = '\0';
45 	}
46 output:
47 
48 	(void) fputs(p2, stdout);
49 	(void) putc('\n', stdout);
50 	return (0);
51 }
52