Last change
on this file since 1402 was 821, checked in by Bruno Cornec, 18 years ago |
Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)
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File size:
1.3 KB
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Rev | Line | |
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[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * cat -v implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 2006 Rob Landley <rob@landley.net>
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| 6 | *
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| 7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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| 8 | */
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| 9 |
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| 10 | /* See "Cat -v considered harmful" at
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| 11 | * http://cm.bell-labs.com/cm/cs/doc/84/kp.ps.gz */
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| 12 |
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| 13 | #include "busybox.h"
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| 14 | #include <unistd.h>
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| 15 | #include <fcntl.h>
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| 16 |
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| 17 | int catv_main(int argc, char **argv)
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| 18 | {
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| 19 | int retval = EXIT_SUCCESS, fd, flags;
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| 20 |
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| 21 | flags = bb_getopt_ulflags(argc, argv, "etv");
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| 22 | flags ^= 4;
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| 23 |
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| 24 | // Loop through files.
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| 25 |
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| 26 | argv += optind;
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| 27 | do {
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| 28 | // Read from stdin if there's nothing else to do.
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| 29 |
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| 30 | fd = 0;
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| 31 | if (*argv && 0>(fd = bb_xopen(*argv, O_RDONLY))) retval = EXIT_FAILURE;
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| 32 | else for(;;) {
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| 33 | int i, res;
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| 34 |
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| 35 | res = read(fd, bb_common_bufsiz1, sizeof(bb_common_bufsiz1));
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| 36 | if (res < 0) retval = EXIT_FAILURE;
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| 37 | if (res <1) break;
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| 38 | for (i=0; i<res; i++) {
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| 39 | char c=bb_common_bufsiz1[i];
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| 40 |
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| 41 | if (c > 126 && (flags & 4)) {
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| 42 | if (c == 127) {
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| 43 | printf("^?");
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| 44 | continue;
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| 45 | } else {
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| 46 | printf("M-");
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| 47 | c -= 128;
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| 48 | }
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| 49 | }
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| 50 | if (c < 32) {
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| 51 | if (c == 10) {
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| 52 | if (flags & 1) putchar('$');
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| 53 | } else if (flags & (c==9 ? 2 : 4)) {
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| 54 | printf("^%c", c+'@');
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| 55 | continue;
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| 56 | }
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| 57 | }
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| 58 | putchar(c);
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| 59 | }
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| 60 | }
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| 61 | if (ENABLE_FEATURE_CLEAN_UP && fd) close(fd);
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| 62 | } while (*++argv);
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| 63 |
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| 64 | return retval;
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| 65 | }
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