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/*
* Copyright (C) 2022, 2023 Leah Rowe <info@minifree.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
void readGbeFile(int *fd, const char *path, int flags,
size_t nr);
void cmd_setmac(const char *strMac);
int invalidMacAddress(const char *strMac, uint16_t *mac);
uint8_t hextonum(char chs);
uint8_t rhex(void);
void cmd_dump(void);
void showmac(int partnum);
void hexdump(int partnum);
void cmd_setchecksum(void);
void cmd_brick(void);
void cmd_swap(void);
void cmd_copy(void);
int validChecksum(int partnum);
void setWord(int pos16, int partnum, uint16_t val16);
void xorswap_buf(int n, int partnum);
void writeGbeFile(int *fd, const char *filename, size_t nw);
void xpledge(const char *promises, const char *execpromises);
void xunveil(const char *path, const char *permissions);
#define FILENAME argv[1]
#define COMMAND argv[2]
#define MAC_ADDRESS argv[3]
#define PARTNUM argv[3]
#define SIZE_4KB 0x1000
#define SIZE_8KB 0x2000
uint16_t buf16[SIZE_4KB];
uint8_t *buf;
size_t gbe[2];
uint8_t skipread[2] = {0, 0};
int part, gbeFileModified = 0;
uint8_t nvmPartModified[2] = {0, 0};
uint16_t test;
uint8_t big_endian;
#define word(pos16, partnum) buf16[pos16 + (partnum << 11)]
#define ERR() errno = errno ? errno : ECANCELED
#define xorswap(x, y) x ^= y, y ^= x, x ^= y
#define xopen(fd, loc, p) if ((fd = open(loc, p)) == -1) err(ERR(), "%s", loc)
#define err_if(x) if (x) err(ERR(), NULL)
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