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1 | /* |
2 | * Copyright (c) 1987 Regents of the University of California. | |
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. | |
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16 | */ |
17 | ||
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 */ | |
e04fe8e4 | 23 | |
4391e8e5 | 24 | #ifndef lint |
5e8b0e60 | 25 | static char sccsid[] = "@(#)rev.c 4.4 (Berkeley) %G%"; |
4391e8e5 | 26 | #endif /* not lint */ |
e04fe8e4 | 27 | |
4391e8e5 | 28 | #include <stdio.h> |
e04fe8e4 | 29 | |
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30 | main(argc, argv) |
31 | int argc; | |
32 | char **argv; | |
e04fe8e4 | 33 | { |
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34 | register char *t, *bp; |
35 | char buf[BUFSIZ]; | |
36 | ||
37 | bp = buf; | |
e04fe8e4 | 38 | do { |
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39 | if (argc > 1 && !freopen(*++argv, "r", stdin)) { |
40 | fprintf(stderr, "rev: cannot open %s.\n", *argv); | |
41 | exit(1); | |
e04fe8e4 | 42 | } |
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43 | while (fgets(bp, sizeof(buf), stdin)) { |
44 | for (t = bp; *t; ++t); | |
45 | if (*--t == '\n') | |
46 | --t; | |
47 | for (; t >= bp; --t) | |
48 | putchar(*t); | |
49 | putchar('\n'); | |
e04fe8e4 | 50 | } |
4391e8e5 | 51 | } while(--argc > 1); |
d8d7b75f | 52 | exit(0); |
e04fe8e4 | 53 | } |