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/*
Copyright 2022-2023 Gabriel Bjørnager Jensen.
This file is part of agbsum.
agbsum is free software: you can redistribute it
and/or modify it under the terms of the GNU
Affero General Public License as published by
the Free Software Foundation, either version 3
of the License, or (at your option) any later
version.
agbsum is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more
details.
You should have received a copy of the GNU
Affero General Public License along with agbsum.
If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef agb_header
#define agb_header
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#if __STDC_VERSION__ >= 201112
#include <stdnoreturn.h>
#elif defined(__GNUC__)
#define noreturn __attribute__ ((__noreturn__))
#elif defined (_MSC_VER)
#define noreturn __declspec (noreturn)
#else
#define noreturn
#endif
#define agb_release ((uint64_t)UINT64_C(+0xF))
#define agb_sumDataStart ((size_t)+0xA0u) // The part of the header used for calculating the checksum.
#define agb_sumOffset ((size_t)+0xBDu - agb_sumDataStart)
enum agb_Condition {
agb_Cnd_Error,
agb_Cnd_Ok,
};
struct agb_Data {
bool doPatch;
char const* path;
bool silent;
FILE* image;
};
uint8_t
agb_getSum (void const* restrict image);
void
agb_patch (FILE* restrict image, char unsigned sum);
void
agb_copyright (void);
void
agb_help (void);
void
agb_checkParams (struct agb_Data* restrict dat, int argc, char const* const* restrict argv);
void
agb_initdata (struct agb_Data* restrict dat);
FILE*
agb_open (char const* restrict path);
void
agb_read (void* restrict buf, FILE* restrict image);
noreturn void
agb_exit (enum agb_Condition stat, FILE* image);
#endif
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