bit-release/bit.c

/* SPDX-License-Identifier: Apache-2.0 */

/* INCLUDES ==================================================================*/

/* 
 */
//#include <stdlib.h>

/* printf()
 */
#include <stdio.h>

/* bswap_32(x) 
 */
#include <byteswap.h>

#include "bit.h"

/* MACROS ====================================================================*/

/* ENUMERATIONS ==============================================================*/

/* STRUCTS ===================================================================*/

/* GLOBAL VARIABLES ==========================================================*/

/* PROTOTYPES ================================================================*/

/* FUNCTIONS =================================================================*/

/*
 * Print a unsigned char buffer 
 */
void bit_print_buffer_u8(void *buf, unsigned long len, unsigned long width, int print_header)
{
	unsigned long i, j, k, rows;
	__u8 *ptr;

	/* STEP 1: Verify Inputs */
	if ( buf == NULL) 
		return;

	if ( len == 0 )
		return;
	
	if ( width == 0 )
		width = BIT_DEFAULT_WIDTH;
	
	if ( width < BIT_MIN_WIDTH )
		width = BIT_MIN_WIDTH;

	ptr = (__u8*) buf;

	/* Compute the number of rows to print */
	rows = len / width;
	if ( (len % width) > 0)
		rows++;

	/* Print index '0x0000: ' */
	if (print_header) {
		printf("            ");
		for ( i = 0 ; i < width ; i++ )
			printf("%02lu ", i);
		printf("\n");
	}

	k = 0;
	for ( i = 0 ; i < rows ; i++ ) {
		printf("0x%08lx: ", i * width);
		for ( j = 0 ; j < width ; j++ ) {
			if (k >= len)
				break;

			printf("%02x ", ptr[i*width + j]);

			k++;
		}
		printf("\n");
	}

	return;
}

/*
 * Print a unsigned long buffer 
 */
void bit_print_buffer_u32(void *buf, unsigned long len, int print_header, int byteswap)
{
	unsigned long i, rows;
	__u32 *ptr;

	/* STEP 1: Verify Inputs */
	if ( buf == NULL) 
		return;

	if ( len == 0 )
		return;
	
	ptr = (__u32*) buf;

	/* Compute the number of rows to print */
	rows = len;

	/* Print index '0x0000: ' */
	if (print_header) {
		printf("            ");
		for ( i = 0 ; i < sizeof(__u32) ; i++ )
			printf("%02lu", i);
		printf("\n");
	}

	/* Print data */
	for ( i = 0 ; i < rows ; i++ ) {
		if (byteswap) 
			printf("0x%08lx: %08x\n", i, bswap_32(ptr[i]));
		else 
			printf("0x%08lx: %08x\n", i, ptr[i]);
	}

	return;
}