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/* Copyright (c) David Hammerton 2003
*
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#include <ctype.h>
#include <memory.h>
#include "debug.h"
#define DEFAULT_DEBUG_CHANNEL "debug"
static int tracesEnabled = 0;
static int errEnabled = 1;
static int fixmeEnabled = 1;
/* returns -1 on failure, 0 on success */
int daap_debug_init(const char *const debug_init_string)
{
const char *p = debug_init_string;
while (*p)
{
char *class_or_channel;
int class_or_channel_size;
const char *end;
int the_switch;
switch (*p)
{
case '+': the_switch = 1;
break;
case '-': the_switch = 0;
break;
default:
goto err;
}
p++;
if (!p) goto err;
end = strchr(p, ',');
if (end) end--;
else end = p + strlen(p);
class_or_channel_size = end - p + 1;
class_or_channel = (char*)malloc(class_or_channel_size + 1);
strncpy(class_or_channel, p, class_or_channel_size);
class_or_channel[class_or_channel_size] = 0;
/* now check if it is a class */
if (strcmp(class_or_channel, "err") == 0)
errEnabled = the_switch;
else if (strcmp(class_or_channel, "fixme") == 0)
fixmeEnabled = the_switch;
else if (strcmp(class_or_channel, "trace") == 0)
tracesEnabled = the_switch;
else /* check channels */
{
FIXME("sorry, but currently you can only toggle debug classes. Not switching '%s'.\n",
class_or_channel);
}
p = end + 1;
if (*p == ',') p++;
};
return 0;
err:
return -1;
}
static char *get_debug_class_str(enum __DEBUG_CLASS debug_class)
{
switch (debug_class)
{
case __DEBUG_TRACE: return "trace";
case __DEBUG_ERR: return "err";
case __DEBUG_FIXME: return "fixme";
default: return "";
}
}
/* FIXME: don't care about channel for now */
int debug_get_debugging(enum __DEBUG_CLASS debug_class, const char *debug_channel)
{
switch (debug_class)
{
case __DEBUG_TRACE: return tracesEnabled;
case __DEBUG_ERR: return errEnabled;
case __DEBUG_FIXME: return fixmeEnabled;
default: return 0;
}
}
int debug_log(enum __DEBUG_CLASS debug_class, const char *module,
const char *function,
const int line, const char *format, ...)
{
va_list valist;
int ret = 0;
char *debug_class_str = get_debug_class_str(debug_class);
va_start(valist, format);
ret += fprintf(stderr, "%s:%s:", debug_class_str, module);
ret += fprintf(stderr, "%s:%i ", function, line);
ret += vfprintf(stderr, format, valist);
va_end(valist);
return ret;
}
int debug_printf(const char *format, ...)
{
va_list valist;
int ret = 0;
va_start(valist, format);
ret += vfprintf(stderr, format, valist);
va_end(valist);
return ret;
}
void debug_hexdump(void *data, unsigned long len)
{
unsigned int i;
char *cdata = (char *)data;
char textout[16];
for (i = 0; i < len; i++)
{
if ((i % 8) == 0 && i) fprintf(stderr, " ");
if ((i % 16) == 0 && i) fprintf(stderr, " '%.8s' '%.8s'\n", &textout[0], &textout[8]);
textout[i % 16] = (cdata[i] && isprint(cdata[i])) ? cdata[i] : '.';
fprintf(stderr, "%02hhx ", cdata[i]);
}
if (i % 16)
{
unsigned int j;
for (j = 0; j < (16 - (i % 16)); j++)
{
if (((16 - (i % 16)) - j) == 8) fprintf(stderr, " ");
fprintf(stderr, ".. ");
}
fprintf(stderr, " '");
for (j = 0; j < (i % 16); j++)
{
fprintf(stderr, "%c", textout[j]);
if (j == 8) fprintf(stderr, "' '");
}
fprintf(stderr, "'\n");
}
fprintf(stderr, "\n");
}
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