FreeCalypso > hg > freecalypso-reveng
annotate mpffs/cat.c @ 79:8f4996bff904
tiobjd: profile operation implemented
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Wed, 26 Mar 2014 02:00:44 +0000 |
parents | 7ceab8bfacb3 |
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1 /* |
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2 * This module contains the main function and other code specific to mpffs-cat |
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3 */ |
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4 |
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5 #include <sys/types.h> |
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6 #include <ctype.h> |
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7 #include <stdio.h> |
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8 #include <string.h> |
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9 #include <strings.h> |
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10 #include <stdlib.h> |
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11 #include <unistd.h> |
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12 #include "types.h" |
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13 #include "struct.h" |
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14 |
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15 extern char *imgfile; |
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16 extern int verbose; |
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17 |
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18 int cat_v; |
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19 |
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20 cat_chunk(chi) |
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21 struct chunkinfo *chi; |
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22 { |
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23 u8 *dp; |
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24 size_t len; |
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25 int c; |
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26 |
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27 dp = chi->start; |
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28 len = chi->len; |
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29 while (len) { |
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30 c = *dp++; |
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31 if (!cat_v || c >= ' ' && c <= '~' || c == '\n') |
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32 putchar(c); |
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33 else { |
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34 if (c & 0x80) { |
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35 putchar('M'); |
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36 putchar('-'); |
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37 c &= 0x7F; |
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38 } |
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39 putchar('^'); |
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40 if (c == 0x7F) |
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41 putchar('?'); |
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42 else |
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43 putchar(c + '@'); |
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44 } |
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45 len--; |
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46 } |
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47 } |
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48 |
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49 void |
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50 extra_chunk_callback(obj, opaque) |
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51 struct objinfo *obj; |
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52 u_long opaque; |
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53 { |
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54 struct chunkinfo chi; |
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55 |
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56 size_extra_chunk(obj, &chi); |
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57 cat_chunk(&chi); |
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58 } |
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59 |
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60 cat_file(headidx) |
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61 { |
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62 struct objinfo obj; |
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63 struct chunkinfo chi; |
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64 |
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65 obj.entryno = headidx; |
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66 get_index_entry(&obj); |
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67 if (obj.type != 0xF1) { |
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68 fprintf(stderr, |
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69 "mpffs-cat: the requested FFS object is not a regular file\n"); |
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70 exit(1); |
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71 } |
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72 validate_chunk(&obj); |
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73 size_head_chunk(&obj, &chi); |
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74 cat_chunk(&chi); |
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75 iterate_extra_chunks(obj.descend, extra_chunk_callback, (u_long) 0); |
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76 if (cat_v) |
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77 putchar('\n'); |
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78 } |
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79 |
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80 usage() |
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81 { |
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82 fprintf(stderr, "usage: mpffs-cat [options] ffs-image pathname\n"); |
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83 exit(1); |
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84 } |
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85 |
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86 main(argc, argv) |
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87 char **argv; |
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88 { |
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89 extern int optind; |
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90 int idx; |
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91 |
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92 parse_cmdline_options(argc, argv); |
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93 if (argc - optind != 2) |
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94 usage(); |
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95 if (verbose) { |
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96 cat_v = 1; |
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97 verbose--; |
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98 } |
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99 imgfile = argv[optind]; |
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100 preliminaries(); |
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101 idx = find_pathname(argv[optind+1]); |
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102 cat_file(idx); |
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103 exit(0); |
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104 } |