utils.h File Reference

#include <stdio.h>

Go to the source code of this file.

Data Structures
struct	dir_list

Macros
#define	SIZE_T_FORMAT   "%zu"
#define	KB   1024
#define	MB   (1024 * KB)
#define	DIM(S_ARR_)   (sizeof(S_ARR_) / sizeof(S_ARR_[0]))
#define	MIN(A_, B_)   ((A_) < (B_) ? (A_) : (B_))
#define	MAX(A_, B_)   ((A_) > (B_) ? (A_) : (B_))
#define	ALIGN(VAL_, ALIGNMENT_)   (((VAL_) + ((ALIGNMENT_) - 1)) & ~((ALIGNMENT_) - 1))
#define	read_u32_be(buf)   (unsigned int)(((buf)[0] << 24) + ((buf)[1] << 16) + ((buf)[2] << 8) + ((buf)[3]))
#define	read_u32_le(buf)   (unsigned int)(((buf)[1] << 24) + ((buf)[0] << 16) + ((buf)[3] << 8) + ((buf)[2]))
#define	write_u32_be(buf, val)
#define	read_u16_be(buf)   (((buf)[0] << 8) + ((buf)[1]))
#define	write_u16_be(buf, val)
#define	fprint_nibble(FP, NIB_)   fputc((NIB_) < 10 ? ('0' + (NIB_)) : ('A' + (NIB_) - 0xA), FP)
#define	fprint_byte(FP, BYTE_)
#define	print_nibble(NIB_)   fprint_nibble(stdout, NIB_)
#define	print_byte(BYTE_)   fprint_byte(stdout, BYTE_)
#define	MAX_DIR_FILES   128
#define	ERROR(...)   fprintf(stderr, __VA_ARGS__)
#define	INFO(...)   if (g_verbosity) printf(__VA_ARGS__)
#define	INFO_HEX(...)   if (g_verbosity) print_hex(__VA_ARGS__)

Functions
int	read_s16_be (unsigned char *buf)
float	read_f32_be (unsigned char *buf)
int	is_power2 (unsigned int val)
void	fprint_hex (FILE *fp, const unsigned char *buf, int length)
void	fprint_hex_source (FILE *fp, const unsigned char *buf, int length)
void	print_hex (const unsigned char *buf, int length)
void	swap_bytes (unsigned char *data, long length)
void	reverse_endian (unsigned char *data, long length)
long	filesize (const char *file_name)
void	touch_file (const char *filename)
long	read_file (const char *file_name, unsigned char **data)
long	write_file (const char *file_name, unsigned char *data, long length)
void	generate_filename (const char *in_name, char *out_name, char *extension)
char *	basename (const char *name)
void	make_dir (const char *dir_name)
long	copy_file (const char *src_name, const char *dst_name)
void	dir_list_ext (const char *dir, const char *extension, dir_list *list)
void	dir_list_free (dir_list *list)
int	str_ends_with (const char *str, const char *suffix)

Variables
int	g_verbosity

Macro Definition Documentation

ALIGN

#define ALIGN	(		VAL_,
			ALIGNMENT_
	)		(((VAL_) + ((ALIGNMENT_) - 1)) & ~((ALIGNMENT_) - 1))

DIM

#define DIM

(

S_ARR_

)

(sizeof(S_ARR_) / sizeof(S_ARR_[0]))

ERROR

#define ERROR

(

...

)

fprintf(stderr, __VA_ARGS__)

fprint_byte

#define fprint_byte	(		FP,
			BYTE_
	)

Value:

do { \
    fprint_nibble(FP, (BYTE_) >> 4); \
    fprint_nibble(FP, (BYTE_) & 0x0F); \
  } while(0)

fprint_nibble

#define fprint_nibble	(		FP,
			NIB_
	)		fputc((NIB_) < 10 ? ('0' + (NIB_)) : ('A' + (NIB_) - 0xA), FP)

INFO

#define INFO

(

...

)

if (g_verbosity) printf(__VA_ARGS__)

INFO_HEX

#define INFO_HEX

(

...

)

if (g_verbosity) print_hex(__VA_ARGS__)

KB

#define KB   1024

MAX

#define MAX	(		A_,
			B_
	)		((A_) > (B_) ? (A_) : (B_))

MAX_DIR_FILES

#define MAX_DIR_FILES   128

MB

#define MB   (1024 * KB)

MIN

#define MIN	(		A_,
			B_
	)		((A_) < (B_) ? (A_) : (B_))

print_byte

#define print_byte

(

BYTE_

)

fprint_byte(stdout, BYTE_)

print_nibble

#define print_nibble

(

NIB_

)

fprint_nibble(stdout, NIB_)

read_u16_be

#define read_u16_be

(

buf

)

(((buf)[0] << 8) + ((buf)[1]))

read_u32_be

#define read_u32_be

(

buf

)

(unsigned int)(((buf)[0] << 24) + ((buf)[1] << 16) + ((buf)[2] << 8) + ((buf)[3]))

read_u32_le

#define read_u32_le

(

buf

)

(unsigned int)(((buf)[1] << 24) + ((buf)[0] << 16) + ((buf)[3] << 8) + ((buf)[2]))

SIZE_T_FORMAT

#define SIZE_T_FORMAT   "%zu"

write_u16_be

#define write_u16_be	(		buf,
			val
	)

Value:

do { \
   (buf)[0] = ((val) >> 8) & 0xFF; \
   (buf)[1] = ((val)) & 0xFF; \
} while(0)

write_u32_be

#define write_u32_be	(		buf,
			val
	)

Value:

do { \
   (buf)[0] = ((val) >> 24) & 0xFF; \
   (buf)[1] = ((val) >> 16) & 0xFF; \
   (buf)[2] = ((val) >> 8) & 0xFF; \
   (buf)[3] = (val) & 0xFF; \
} while(0)

Function Documentation

basename()

char* basename

(

const char *

name

)

copy_file()

long copy_file	(	const char *	src_name,
		const char *	dst_name
	)

dir_list_ext()

void dir_list_ext	(	const char *	dir,
		const char *	extension,
		dir_list *	list
	)

dir_list_free()

void dir_list_free

(

dir_list *

list

)

filesize()

long filesize

(

const char *

file_name

)

fprint_hex()

void fprint_hex	(	FILE *	fp,
		const unsigned char *	buf,
		int	length
	)

fprint_hex_source()

void fprint_hex_source	(	FILE *	fp,
		const unsigned char *	buf,
		int	length
	)

generate_filename()

void generate_filename	(	const char *	in_name,
		char *	out_name,
		char *	extension
	)

is_power2()

int is_power2

(

unsigned int

val

)

make_dir()

void make_dir

(

const char *

dir_name

)

print_hex()

void print_hex	(	const unsigned char *	buf,
		int	length
	)

read_f32_be()

float read_f32_be

(

unsigned char *

buf

)

read_file()

long read_file	(	const char *	file_name,
		unsigned char **	data
	)

read_s16_be()

int read_s16_be

(

unsigned char *

buf

)

reverse_endian()

void reverse_endian	(	unsigned char *	data,
		long	length
	)

str_ends_with()

int str_ends_with	(	const char *	str,
		const char *	suffix
	)

swap_bytes()

void swap_bytes	(	unsigned char *	data,
		long	length
	)

touch_file()

void touch_file

(

const char *

filename

)

write_file()

long write_file	(	const char *	file_name,
		unsigned char *	data,
		long	length
	)

Variable Documentation

g_verbosity

int g_verbosity