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/*
* Copyright (C) 2020-2021 Tomasz Kramkowski <tk@the-tk.com>
* SPDX-License-Identifier: MIT
*/
#ifndef PACK_H
#define PACK_H
#include <stddef.h>
enum pack_status {
PACK_OK,
PACK_FMTINVAL,
PACK_TOOSMALL,
};
extern enum pack_trace {
PACK_TRACE_OFF,
PACK_TRACE_CALL,
PACK_TRACE_DEBUG,
PACK_TRACE_ALL,
} pack_trace;
enum pack_type {
PACK_TYPE_SCHAR = 'b',
PACK_TYPE_UCHAR = 'B',
PACK_TYPE_SHORT = 'h',
PACK_TYPE_USHORT = 'H',
PACK_TYPE_INT = 'i',
PACK_TYPE_UINT = 'I',
PACK_TYPE_LONG = 'l',
PACK_TYPE_ULONG = 'L',
PACK_TYPE_LLONG = 'q',
PACK_TYPE_ULLONG = 'Q',
PACK_TYPE_FLOAT = 'f',
PACK_TYPE_DOUBLE = 'd',
PACK_TYPE_PADDING = 'x',
PACK_TYPE_COUNT = '*',
};
enum pack_endian {
PACK_ENDIAN_BIG,
PACK_ENDIAN_LITTLE
};
struct pack_field {
enum pack_type type;
size_t count;
size_t offset;
};
struct pack_args {
enum pack_endian endian;
struct pack_field *fields;
size_t num_fields;
};
enum pack_status pack(void *dest, size_t size, const char *fmt, ...);
enum pack_status unpack(const void *src, size_t size, const char *fmt, ...);
enum pack_status unpack_struct(const void *src, size_t size, const struct pack_args *args, void *dest);
const char *pack_strerror(enum pack_status status);
#endif // !PACK_H
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