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2435 | jelen | 1 | /* |
2 | * Copyright (c) 2007 Konopa-Jelen-Majer |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
2434 | jelen | 29 | /** @addtogroup FSDemo |
30 | * @{ |
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31 | */ |
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32 | |||
33 | /** |
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2435 | jelen | 34 | * @file cat.standard.c |
35 | * @brief A file system demonstration task - standard library version |
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2434 | jelen | 36 | */ |
37 | |||
38 | |||
39 | #include <err.h> |
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40 | #include <stdio.h> |
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41 | #include <stdlib.h> |
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42 | #include <string.h> |
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43 | #include <unistd.h> |
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44 | #include <async.h> |
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45 | #include "../console/console.h" |
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46 | #include <io/file.h> |
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47 | #include <io/stat.h> |
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48 | |||
2435 | jelen | 49 | |
50 | /** |
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51 | * This is a very basic linear demonstration script of the standard file library |
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52 | */ |
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2434 | jelen | 53 | int main(int argc, char *argv[]) |
54 | { |
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55 | |||
56 | file_t * file; |
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57 | unsigned int dir_items_length; |
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58 | dir_item_t* dir_items; |
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59 | char buffer[256]; |
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60 | int retval; |
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61 | |||
62 | printf("Cat task\n"); |
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63 | |||
64 | /* File list in working directory. */ |
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2435 | jelen | 65 | printf("File list:\n"); |
2434 | jelen | 66 | dir_items = ls(&dir_items_length); |
67 | printf("Got a list\n"); |
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68 | |||
69 | int entry; |
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70 | for (entry = 0; entry < dir_items_length; entry++) { |
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71 | printf("Inode number: %u\t\t", dir_items[entry].inode_num); |
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72 | printf("File name: %s\n", dir_items[entry].name); |
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73 | |||
74 | } |
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2435 | jelen | 75 | |
2434 | jelen | 76 | /* We want to change working directory */ |
77 | retval = chdir("uspace/fs"); |
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78 | |||
79 | /* We want to work with specified file. */ |
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2435 | jelen | 80 | file = fopen("fs.c", F_MODE_READ); |
2434 | jelen | 81 | retval = fstat( file ); |
82 | |||
83 | printf("Info about file: %s\n", file->base_info.name); |
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84 | printf("Inode number: %d\n", file->stat.st_ino); |
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85 | printf("Mode: %d\n", file->stat.st_mode); |
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86 | printf("Links: %d\n", file->stat.st_nlink); |
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87 | printf("Size: %d\n", file->stat.st_size); |
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88 | |||
89 | retval = fseek( file, 100, 1); |
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90 | retval = fread( file, buffer, 100); |
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91 | buffer[100]=0; |
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92 | |||
93 | printf("%d bytes was read into buffer\n", retval); |
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94 | printf("\nContent of the buffer:\n"); |
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95 | printf(buffer); |
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96 | printf("\n\n"); |
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97 | |||
98 | retval = fseek( file, 0, 0); |
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99 | retval = fread( file, buffer, 50); |
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100 | buffer[50]=0; |
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101 | |||
102 | printf("%d bytes was read into buffer\n", retval); |
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103 | printf("\nContent of the buffer:\n"); |
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104 | printf(buffer); |
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105 | printf("\n\n"); |
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2435 | jelen | 106 | /*close the file */ |
107 | retval = fclose( file ); |
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2434 | jelen | 108 | |
2435 | jelen | 109 | return 0; |
2434 | jelen | 110 | } |
111 | |||
112 | /** |
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113 | * } |
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114 | */ |