mirror of https://github.com/xfarrow/dircomp.git
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*
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dircomp - A directory comparison tool
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THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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*/
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# ifndef DIRCOMP_GUARD
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# define DIRCOMP_GUARD
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdbool.h>
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#include <dirent.h>
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#include <string.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <openssl/sha.h>
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#include <openssl/evp.h>
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#include <sys/stat.h>
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#define BYTES_TO_READ_AT_ONCE 512000 // 500KiB
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#if BYTES_TO_READ_AT_ONCE > SIZE_MAX
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#error Compile-time error: The specified value of BYTES_TO_READ_AT_ONCE is too large for this system.
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#endif
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struct arguments{
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char* directory1;
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char* directory2;
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bool r; // recursive
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bool v; // verbose
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bool h; // help
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bool f; // fast
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bool d; // comparison by digest
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};
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struct arguments get_arguments(int, char**);
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// Reference: https://www.gnu.org/software/libc/manual/html_node/Directory-Entries.html
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bool analyze_directories(char*, char*, struct arguments*);
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int byte_by_byte_file_comparison(char*, char*);
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int hash_by_hash_file_comparison(char*, char*);
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unsigned char* sha1(char*);
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unsigned char* sha1_legacy(char*);
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char* combine_path(char*, char*);
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void print_help(void);
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#endif
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