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/*
Copyright 2022-2023 Gabriel 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_hdr
#define agb_hdr
#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_rel ((uint64_t)+0xEu)
#define agb_iptsrt ((size_t)+0xA0u) // The part of the header used for calculating the checksum.
#define agb_sumoff ((size_t)+0xBDu - agb_iptsrt)
enum agb_cnd {
agb_cnd_err,
agb_cnd_oky,
};
struct agb_dat {
bool dopat;
char const* pth;
bool sil;
FILE* img;
};
uint8_t
agb_getsum (void const* restrict img);
void
agb_pat (FILE* restrict img, char unsigned sum);
void
agb_cpy (void);
void
agb_hlp (void);
void
agb_chkpar (struct agb_dat* restrict dat, int argc, char const* const* restrict argv);
void
agb_inidat (struct agb_dat* restrict dat);
FILE*
agb_opn (char const* restrict pth);
void
agb_red (void* restrict buf, FILE* restrict img);
noreturn void
agb_exi (enum agb_cnd stat, FILE* img);
#endif
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