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/*
* lib/util/debug.c
*
* Copyright (C) 1997,1998 Russell King
*/
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
static int debug_level;
static FILE *debug_file;
/* Function: void dbg_level_up (void)
* Purpose : increase the indentation level of debugs
*/
void dbg_level_up (void)
{
debug_level += 2;
}
/* Function: void dbg_level_up (void)
* Purpose : decrease the indentation level of debugs
*/
void dbg_level_down (void)
{
if (debug_level > 0)
debug_level -= 2;
}
/* Function: void dbg_printf (const char *fmt, ...)
* Purpose : write some debugging information
* Params : fmt - printf-like format string
*/
void dbg_printf (const char *fmt, ...)
{
static char buffer[2048];
va_list ap;
va_start (ap, fmt);
vsprintf (buffer, fmt, ap);
va_end (ap);
if (!debug_file)
debug_file = fopen("/tmp/part.debug", "w+");
if (debug_file)
fprintf (debug_file, "%*s%s\n", debug_level, "", buffer);
}
/* Function: void dbg_memdump (void *data, int length)
* Purpose : dump out a block of memory
* Params : data - start of memory to dump
* : length - number of bytes to dump
*/
void dbg_memdump (void *data, int length)
{
const char *byte = (char *)data;
int offset, i;
for (offset = 0; offset < length; offset += 16) {
fprintf(debug_file, "%04X : ", offset);
for (i = offset; i < offset + 16; i++)
fprintf(debug_file, "%02X ", byte[i]);
fprintf(debug_file, ": ");
for (i = offset; i < offset + 16; i++)
if (isprint(byte[i]))
fprintf(debug_file, "%c", byte[i]);
else
fprintf(debug_file, ".");
fprintf(debug_file, "\n");
}
}
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