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/*
* debug.c
* contains utilitary functions for debugging
*
* Copyright (c) 2008 Jonathan Beck All Rights Reserved.
* Copyright (c) 2010 Martin S. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdarg.h>
#define _GNU_SOURCE 1
#define __USE_GNU 1
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <time.h>
#include "debug.h"
#include "libimobiledevice/libimobiledevice.h"
#ifndef STRIP_DEBUG_CODE
#include "asprintf.h"
#endif
int debug_level = 0;
/**
* Sets the level of debugging. Currently the only acceptable values are 0 and
* 1.
*
* @param level Set to 0 for no debugging or 1 for debugging.
*/
void idevice_set_debug_level(int level)
{
debug_level = level;
}
#ifndef STRIP_DEBUG_CODE
static void debug_print_line(const char *func, const char *file, int line, const char *buffer)
{
char *str_time = NULL;
char *header = NULL;
time_t the_time;
time(&the_time);
str_time = (char*)malloc(255);
strftime(str_time, 254, "%H:%M:%S", localtime (&the_time));
/* generate header text */
(void)asprintf(&header, "%s %s:%d %s()", str_time, file, line, func);
free (str_time);
/* trim ending newlines */
/* print header */
printf ("%s: ", header);
/* print actual debug content */
printf ("%s\n", buffer);
/* flush this output, as we need to debug */
fflush (stdout);
free (header);
}
#endif
inline void debug_info_real(const char *func, const char *file, int line, const char *format, ...)
{
#ifndef STRIP_DEBUG_CODE
va_list args;
char *buffer = NULL;
if (!debug_level)
return;
/* run the real fprintf */
va_start(args, format);
(void)vasprintf(&buffer, format, args);
va_end(args);
debug_print_line(func, file, line, buffer);
free(buffer);
#endif
}
inline void debug_buffer(const char *data, const int length)
{
#ifndef STRIP_DEBUG_CODE
int i;
int j;
unsigned char c;
if (debug_level) {
for (i = 0; i < length; i += 16) {
fprintf(stderr, "%04x: ", i);
for (j = 0; j < 16; j++) {
if (i + j >= length) {
fprintf(stderr, " ");
continue;
}
fprintf(stderr, "%02hhx ", *(data + i + j));
}
fprintf(stderr, " | ");
for (j = 0; j < 16; j++) {
if (i + j >= length)
break;
c = *(data + i + j);
if ((c < 32) || (c > 127)) {
fprintf(stderr, ".");
continue;
}
fprintf(stderr, "%c", c);
}
fprintf(stderr, "\n");
}
fprintf(stderr, "\n");
}
#endif
}
inline void debug_buffer_to_file(const char *file, const char *data, const int length)
{
#ifndef STRIP_DEBUG_CODE
if (debug_level) {
FILE *f = fopen(file, "wb");
fwrite(data, 1, length, f);
fflush(f);
fclose(f);
}
#endif
}
inline void debug_plist_real(const char *func, const char *file, int line, plist_t plist)
{
#ifndef STRIP_DEBUG_CODE
if (!plist)
return;
char *buffer = NULL;
uint32_t length = 0;
plist_to_xml(plist, &buffer, &length);
/* get rid of ending newline as one is already added in the debug line */
if (buffer[length-1] == '\n')
buffer[length-1] = '\0';
debug_info_real(func, file, line, "printing %i bytes plist:\n%s", length, buffer);
free(buffer);
#endif
}
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