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Annotation of 43BSDTahoe/usr.bin/rev.c, revision 1.1

1.1     ! root        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
        !             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.
        !            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 */
        !            23: 
        !            24: #ifndef lint
        !            25: static char sccsid[] = "@(#)rev.c      4.4 (Berkeley) 6/29/88";
        !            26: #endif /* not lint */
        !            27: 
        !            28: #include <stdio.h>
        !            29: 
        !            30: main(argc, argv)
        !            31:        int argc;
        !            32:        char **argv;
        !            33: {
        !            34:        register char *t, *bp;
        !            35:        char buf[BUFSIZ];
        !            36: 
        !            37:        bp = buf;
        !            38:        do {
        !            39:                if (argc > 1 && !freopen(*++argv, "r", stdin)) {
        !            40:                        fprintf(stderr, "rev: cannot open %s.\n", *argv);
        !            41:                        exit(1);
        !            42:                }
        !            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');
        !            50:                }
        !            51:        } while(--argc > 1);
        !            52:        exit(0);
        !            53: }

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