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1 | /* |
2 | * Copyright (c) 1987 Regents of the University of California. | |
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3 | * All rights reserved. |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
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6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
72aaa5de | 16 | */ |
38582a33 | 17 | |
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18 | #ifndef lint |
19 | char copyright[] = | |
20 | "@(#) Copyright (c) 1987 Regents of the University of California.\n\ | |
21 | All rights reserved.\n"; | |
22 | #endif /* not lint */ | |
23 | ||
24 | #ifndef lint | |
5e8b0e60 | 25 | static char sccsid[] = "@(#)basename.c 4.5 (Berkeley) %G%"; |
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26 | #endif /* not lint */ |
27 | ||
8c24706b | 28 | main(argc, argv) |
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29 | int argc; |
30 | char **argv; | |
8c24706b | 31 | { |
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32 | register char *p, *t; |
33 | char *base; | |
8c24706b | 34 | |
b00122c8 | 35 | if (argc <= 1) { /* backward compatible */ |
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36 | putchar('\n'); |
37 | exit(1); | |
38 | } | |
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39 | for (p = base = *++argv; *p;) |
40 | if (*p++ == '/') | |
41 | base = p; | |
42 | if (argc > 2) { /* original version allows any # of args */ | |
43 | for (t = *++argv; *t; ++t); | |
44 | do { | |
45 | if (t == *argv) { | |
46 | *p = '\0'; | |
47 | break; | |
48 | } | |
49 | } while (p >= base && *--t == *--p); | |
8c24706b | 50 | } |
b00122c8 | 51 | puts(base); |
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52 | exit(0); |
53 | } |