632f93e084
Link to libmd for cryptographic hash functions and implement comparing checksums when loading a file from an archive;
121 lines
3 KiB
C
121 lines
3 KiB
C
/* _,.---._ .-._ .--.-. ,--.--------.
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* _,..---._ ,-.' , - `. /==/ \ .-._/==/ //==/, - , -\
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* /==/, - \ /==/_, , - \|==|, \/ /, |==\ -\\==\.-. - ,-./
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* |==| _ _\==| .=. |==|- \| | \==\- \`--`\==\- \
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* |==| .=. |==|_ : ;=: - |==| , | -| `--`-' \==\_ \
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* |==|,| | -|==| , '=' |==| - _ | |==|- |
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* |==| '=' /\==\ - ,_ /|==| /\ , | |==|, |
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* |==|-, _`/ '.='. - .' /==/, | |- | /==/ -/
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* `-.`.____.' `--`--'' `--`./ `--` `--`--`
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* _ __ ,---. .-._ .=-.-. _,.----.
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* .-`.' ,`..--.' \ /==/ \ .-._ /==/_ /.' .' - \
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* /==/, - \==\-/\ \ |==|, \/ /, /==|, |/==/ , ,-'
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* |==| _ .=. /==/-|_\ | |==|- \| ||==| ||==|- | .
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* |==| , '=',\==\, - \ |==| , | -||==|- ||==|_ `-' \
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* |==|- '..'/==/ - ,| |==| - _ ||==| ,||==| _ , |
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* |==|, | /==/- /\ - \|==| /\ , ||==|- |\==\. /
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* /==/ - | \==\ _.\=\.-'/==/, | |- |/==/. / `-.`.___.-'
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* `--`---' `--` `--`./ `--``--`-`
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*
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* @(#)Copyright (c) 2023, Nathan D. Fisher.
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*
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* This is free software. It comes with NO WARRANTY.
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* Permission to use, modify and distribute this source code
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* is granted subject to the following conditions.
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* 1/ that the above copyright notice and this notice
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* are preserved in all copies and that due credit be given
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* to the author.
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* 2/ that any changes to this code are clearly commented
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* as such so that the author does not get blamed for bugs
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* other than his own.
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*/
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#ifndef HAGGIS_H
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#define HAGGIS_H
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#include <stdint.h>
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#include <stdio.h>
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typedef uint8_t u8;
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union u16 {
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uint16_t val;
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u8 bytes[2];
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};
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union u32 {
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uint32_t val;
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u8 bytes[4];
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};
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union u64 {
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uint64_t val;
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u8 bytes[8];
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};
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struct haggis_device {
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union u32 major;
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union u32 minor;
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};
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enum haggis_algorithm {
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md5,
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sha1,
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sha256,
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skip,
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};
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union haggis_sum {
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u8 md5[16];
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u8 sha1[20];
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u8 sha256[32];
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};
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struct haggis_checksum {
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enum haggis_algorithm tag;
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union haggis_sum *sum;
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};
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struct haggis_file {
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union u64 len;
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struct haggis_checksum *cksum;
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u8 *data[];
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};
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struct haggis_filename {
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union u16 len;
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u8 name[4096];
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};
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enum haggis_typeflag {
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normal,
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hardlink,
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softlink,
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directory,
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character,
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block,
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fifo,
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eof,
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};
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union haggis_ft {
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struct haggis_file *file;
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struct haggis_filename *target;
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struct haggis_device *dev;
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};
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struct haggis_filetype {
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enum haggis_typeflag tag;
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union haggis_ft *f_type;
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};
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struct haggis_node {
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union u32 uid;
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union u32 gid;
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union u64 mtime;
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union u16 mode;
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struct haggis_filetype *filetype;
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char *name[];
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};
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#endif // !HAGGIS_H
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