Last change
on this file since 3126 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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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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