aslstatus/util.h

#include <stddef.h>
#include <stdint.h>
#include <stdarg.h>

#define BUFF_SZ 96
/*
 * buffer size for one commponent
 * if you are using `wifi.c` it must be at least 78 bytes
 */

#define LEN(S) (sizeof(S) / sizeof *(S))
#define ERRRET(B)                                                             \
	do {                                                                  \
		(B)[0] = '\0';                                                \
		return;                                                       \
	} while (0)

#define __unused	   __attribute__((__unused__))
#define typeof_field(S, F) __typeof__(((S *)0)->F)
#define TWICE(V)	   V, V

#define STRINGIFY_AUX(X) #X
#define STR(X)		 STRINGIFY_AUX(X)

void bprintf(char *, const char *, ...);
int  pscanf(const char *, const char *, ...);
int  esnprintf(char *, size_t, const char *, ...);
void fmt_human(char *, uintmax_t, unsigned short int);