74 lines
2.8 KiB
C
74 lines
2.8 KiB
C
////////////////////////////////////////////////////////////////////////
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// COMP1521 24T2 --- Assignment 2: `rbuoy', a simple file synchroniser
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// <https://cgi.cse.unsw.edu.au/~cs1521/24T2/assignments/ass2/index.html>
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//
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// Written by YOUR-NAME-HERE (z5555555) on INSERT-DATE-HERE.
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// INSERT-DESCRIPTION-OF-PROGAM-HERE
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//
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// 2023-07-12 v1.0 Team COMP1521 <cs1521 at cse.unsw.edu.au>
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#include <assert.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "rbuoy.h"
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/// @brief Create a TABI file from an array of pathnames.
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/// @param out_pathname A path to where the new TABI file should be created.
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/// @param in_pathnames An array of strings containing, in order, the files
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// that should be placed in the new TABI file.
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/// @param num_in_pathnames The length of the `in_pathnames` array. In
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/// subset 5, when this is zero, you should include
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/// everything in the current directory.
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void stage_1(char *out_pathname, char *in_pathnames[], size_t num_in_pathnames) {
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// TODO: implement this.
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// Hint: you will need to:
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// * Open `out_pathname` using fopen, which will be the output TABI file.
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// * For each pathname in `in_pathnames`:
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// * Write the length of the pathname as a 2 byte little endian integer
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// * Write the pathname
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// * Check the size of the input file, e.g. using stat
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// * Compute the number of blocks using number_of_blocks_in_file
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// * Write the number of blocks as a 3 byte little endian integer
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// * Open the input file, and read in blocks of size BLOCK_SIZE, and
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// * For each block call hash_black to compute the hash
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// * Write out that hash as an 8 byte little endian integer
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// Each time you need to write out a little endian integer you should
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// compute each byte using bitwise operations like <<, &, or |
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}
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/// @brief Create a TBBI file from a TABI file.
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/// @param out_pathname A path to where the new TBBI file should be created.
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/// @param in_pathname A path to where the existing TABI file is located.
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void stage_2(char *out_pathname, char *in_pathname) {
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// TODO: implement this.
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}
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/// @brief Create a TCBI file from a TBBI file.
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/// @param out_pathname A path to where the new TCBI file should be created.
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/// @param in_pathname A path to where the existing TBBI file is located.
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void stage_3(char *out_pathname, char *in_pathname) {
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// TODO: implement this.
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}
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/// @brief Apply a TCBI file to the filesystem.
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/// @param in_pathname A path to where the existing TCBI file is located.
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void stage_4(char *in_pathname) {
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// TODO: implement this.
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}
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