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authorFrederic Peters <fpeters@entrouvert.com>2004-07-25 13:52:22 +0000
committerFrederic Peters <fpeters@entrouvert.com>2004-07-25 13:52:22 +0000
commit110851e9d73a98cf56e6677cdc057eb0035bc6b5 (patch)
treedcbefe6ddcc4b3f9c705238648eca0a288d797b8 /python/INSTALL
parent58666f93a17c1d9c05c1211ee7bd5713a1b96996 (diff)
downloadlasso-110851e9d73a98cf56e6677cdc057eb0035bc6b5.tar.gz
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fixed tabulations in python files (oh the horror; they were mixed with space
indendations). Also installed a test on commits to catch this (and check xml files)
Diffstat (limited to 'python/INSTALL')
0 files changed, 0 insertions, 0 deletions
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// SPDX-License-Identifier: GPL-2.0+
/*
 * lib/hexdump.c
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation. See README and COPYING for
 * more details.
 */

#include <common.h>
#include <hexdump.h>
#include <linux/ctype.h>
#include <linux/compat.h>
#include <linux/log2.h>
#include <asm/unaligned.h>

const char hex_asc[] = "0123456789abcdef";
const char hex_asc_upper[] = "0123456789ABCDEF";

#if CONFIG_IS_ENABLED(HEXDUMP)
/**
 * hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
 * @buf: data blob to dump
 * @len: number of bytes in the @buf
 * @rowsize: number of bytes to print per line; must be 16 or 32
 * @groupsize: number of bytes to print at a time (1, 2, 4, 8; default = 1)
 * @linebuf: where to put the converted data
 * @linebuflen: total size of @linebuf, including space for terminating NUL
 * @ascii: include ASCII after the hex output
 *
 * hex_dump_to_buffer() works on one "line" of output at a time, i.e.,
 * 16 or 32 bytes of input data converted to hex + ASCII output.
 *
 * Given a buffer of u8 data, hex_dump_to_buffer() converts the input data
 * to a hex + ASCII dump at the supplied memory location.
 * The converted output is always NUL-terminated.
 *
 * E.g.:
 *   hex_dump_to_buffer(frame->data, frame->len, 16, 1,
 *			linebuf, sizeof(linebuf), true);
 *
 * example output buffer:
 * 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f  @ABCDEFGHIJKLMNO
 *
 * Return:
 * The amount of bytes placed in the buffer without terminating NUL. If the
 * output was truncated, then the return value is the number of bytes
 * (excluding the terminating NUL) which would have been written to the final
 * string if enough space had been available.
 */
int hex_dump_to_buffer(const void *buf, size_t len, int rowsize, int groupsize,
		       char *linebuf, size_t linebuflen, bool ascii)
{
	const u8 *ptr = buf;
	int ngroups;
	u8 ch;
	int j, lx = 0;
	int ascii_column;
	int ret;

	if (rowsize != 16 && rowsize != 32)
		rowsize = 16;

	if (len > rowsize)		/* limit to one line at a time */
		len = rowsize;
	if (!is_power_of_2(groupsize) || groupsize > 8)
		groupsize = 1;
	if ((len % groupsize) != 0)	/* no mixed size output */
		groupsize = 1;

	ngroups = len / groupsize;
	ascii_column = rowsize * 2 + rowsize / groupsize + 1;

	if (!linebuflen)
		goto overflow1;

	if (!len)
		goto nil;

	if (groupsize == 8) {
		const u64 *ptr8 = buf;

		for (j = 0; j < ngroups; j++) {
			ret = snprintf(linebuf + lx, linebuflen - lx,
				       "%s%16.16llx", j ? " " : "",
				       get_unaligned(ptr8 + j));