52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/*
|
|
* Copyright 2011 Carl-Benedikt Krueger, Chair for Operating Systems,
|
|
* RWTH Aachen University
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* This file is part of MetalSVM.
|
|
*/
|
|
|
|
#include <metalsvm/stdio.h>
|
|
#include "util.h"
|
|
inline int isprint(unsigned char e)
|
|
{
|
|
if ((e < 0x30) || (e > 0x80))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
// hex_dumb display network packets in a good way
|
|
void hex_dump(unsigned n, const unsigned char *buf)
|
|
{
|
|
int on_this_line = 0;
|
|
|
|
while (n-- > 0)
|
|
{
|
|
kprintf("%02X ", *buf++);
|
|
on_this_line += 1;
|
|
|
|
if (on_this_line == 16 || n == 0)
|
|
{
|
|
int i;
|
|
|
|
kputs(" ");
|
|
for (i = on_this_line; i < 16; i++)
|
|
kputs(" ");
|
|
for (i = on_this_line; i > 0; i--)
|
|
kputchar(isprint(buf[-i]) ? buf[-i] : '.');
|
|
kputs("\n");
|
|
on_this_line = 0;
|
|
}
|
|
}
|
|
}
|