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/*
* debug.c
*
* Authors: Dirk Meyer <dmeyer@tzi.de>
* Andreas Büsching <crunchy@tzi.de>
*
* $Id: debug.c,v 1.1 2002/08/28 16:10:51 salmoon Exp $
*/
#include "debug.h"
#include <ctype.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#define DCOLOR "_color"
#define DFILE "_file"
#define DSUFFIX "_debug"
#define LEVEL_HEXDUMP 5
char *__debug_color = NULL;
int __debug_level = 0;
FILE *__debug_fd;
void
debug_init(void) {
char *env_var = malloc(strlen(DPACKAGE) + strlen(DFILE) + 1);
const char *env;
/* check debug output file */
strcpy(env_var, DPACKAGE);
strcat(env_var, DFILE);
if ((env = getenv(env_var))) {
if (__debug_fd && fileno(__debug_fd) != -1) {
fclose(__debug_fd);
}
__debug_fd = fopen(env, "a");
if (!__debug_fd) {
__debug_fd = stderr;
}
} else {
__debug_fd = stderr;
}
free(env_var);
/* check debug level */
env_var = malloc(strlen(DPACKAGE) + strlen(DSUFFIX) + 1);
strcpy(env_var, DPACKAGE);
strcat(env_var, DSUFFIX);
if ((env = getenv(env_var)))
if (isdigit(env[0]))
__debug_level = strtol(env, NULL, 10);
else
__debug_level = 1;
else
__debug_level = -1;
free(env_var);
/* check debug color */
env_var = malloc(strlen(DPACKAGE) + strlen(DCOLOR) + 1);
strcpy(env_var, DPACKAGE);
strcat(env_var, DCOLOR);
if (__debug_color) free(__debug_color);
__debug_color = NULL;
if ((env = getenv(env_var))) {
if (env[0] != '\0') {
__debug_color = malloc(4 + strlen(env));
sprintf(__debug_color, "\033[%sm", env);
} else
__debug_color = malloc(6);
strcpy(__debug_color, "\033[32m");
} else {
__debug_color = NULL;
}
free(env_var);
}
int
debug_file(char *filename)
{
if (__debug_fd && fileno(__debug_fd) != -1) {
fclose(__debug_fd);
}
__debug_fd = fopen(filename, "a");
if (!__debug_fd) {
perror("fopen:");
__debug_fd = stderr;
return 0;
}
return 1;
}
int
debug_level(int level)
{
int tmp = __debug_level;
__debug_level = level;
return tmp;
}
int
debug_level_get(void)
{
return __debug_level;
}
void
_hexdump (const char *package, const char* file, int line,
const char* function, const char* data, int len)
{
char buf[17];
int i;
if (_use_debug(LEVEL_HEXDUMP)) {
fprintf (__debug_fd, "%s%s:\033[m %s(%d): %s: data=%p len=%d\n",
__debug_color, package, file, line, function, data, len);
for (i = 0; data != NULL && i < len; i++) {
if (i % 16 == 0)
fprintf(__debug_fd, "\033[30m%s:\033[m %04x: ", package, i);
fprintf(__debug_fd, "%02x ", (unsigned int)(unsigned char)data[i]);
buf[i % 16] = (data[i] >= 32 && data[i] <= 126) ? data[i] : '.';
buf[i % 16 + 1] = '\0';
if (i % 4 == 3) fprintf(__debug_fd, " ");
if (i % 16 == 15) fprintf(__debug_fd, "%s\n", buf);
}
if (i % 16 != 0) {
for (; i % 16 != 0; i++)
fprintf (__debug_fd, (i % 4 == 3) ? " " : " ");
fprintf(__debug_fd, "%s\n", buf);
}
}
}
void
_hexdump_n (const char *package, const int n, const char* file, int line,
const char* function, const char* data, int len)
{
char buf[17];
int i;
if (_use_debug(n)) {
fprintf (__debug_fd, "%s%s:\033[m %s(%d): %s: data=%p len=%d\n",
__debug_color, package, file, line, function, data, len);
for (i = 0; data != NULL && i < len; i++) {
if (i % 16 == 0)
fprintf(__debug_fd, "\033[30m%s:\033[m %04x: ", package, i);
fprintf(__debug_fd, "%02x ", (unsigned int)(unsigned char)data[i]);
buf[i % 16] = (data[i] >= 32 && data[i] <= 126) ? data[i] : '.';
buf[i % 16 + 1] = '\0';
if (i % 4 == 3) fprintf(__debug_fd, " ");
if (i % 16 == 15) fprintf(__debug_fd, "%s\n", buf);
}
if (i % 16 != 0) {
for (; i % 16 != 0; i++)
fprintf (__debug_fd, (i % 4 == 3) ? " " : " ");
fprintf(__debug_fd, "%s\n", buf);
}
}
}
void
_hexdump_text (const char *text,
const char *package, const char *file, int line,
const char *function, const char *data, int len)
{
if (_use_debug(LEVEL_HEXDUMP)) {
fprintf(__debug_fd, "%s%s: %s(%d): %s: %s\033[m", __debug_color,
package, file, line, function, text);
_hexdump(package, file, line, function, data, len);
}
}
void
_error(const char *package, const char *file, int line,
const char *function, int fatal, const char *format, ...)
{
char foo[2048];
va_list ap;
va_start(ap, format);
vsnprintf(foo, sizeof(foo) - strlen(format) - 1, format, ap);
if (_use_debug(0))
fprintf(__debug_fd, "\033[31m%s: %s(%d): %s: %s\033[m",
package, file, line, function, foo);
else
fprintf(__debug_fd, "%s: %s(%d): %s: %s",
package, file, line, function, foo);
fflush(__debug_fd);
if (fatal) {
fprintf(__debug_fd, "\033[31mfatal error -- exit programm\033[m\n");
exit(1);
}
va_end(ap);
}
void
_debug(const char *package, const char *file, int line,
const char *function, const char *format, ...)
{
char foo[2048];
va_list ap;
va_start(ap, format);
vsnprintf(foo, sizeof(foo) - strlen(format) - 1, format, ap);
if (_use_debug(0)) {
fprintf(__debug_fd, "%s%s: %s(%d): %s: %s\033[m",
( __debug_color ? __debug_color : ""),
package, file, line, function, foo);
fflush(__debug_fd);
}
va_end(ap);
}
void
_debug_n(const char *package, const int n, const char *file,
int line, const char *function, const char *format, ...)
{
char foo[2048];
va_list ap;
va_start(ap, format);
vsnprintf(foo, sizeof(foo) - strlen(format) - 1, format, ap);
if (_use_debug(n)) {
fprintf(__debug_fd, "%s%s: %s(%d): %s: %s\033[m",
( __debug_color ? __debug_color : ""),
package, file, line, function, foo);
fflush(__debug_fd);
}
va_end(ap);
}
void
_octetstr(const char *package, const char *file, int line,
const char *function, const uint8_t *str,
const unsigned int len, const char *what)
{
if (_use_debug(LEVEL_HEXDUMP)) {
unsigned int i;
fprintf(__debug_fd, "%s%s: %s(%d): %s: ",
package, file, function, line, (what?what:""));
for (i = 0; i < len; i++) {
if (i < (len - 1))
fprintf(__debug_fd, "%03d.", str [i]);
else
fprintf(__debug_fd, "%03d", str [i]);
}
}
}
int
_use_debug(int level)
{
if (__debug_level == -1) return 0;
if (level <= __debug_level) {
return 1;
}
return 0;
}
/* end of debug.c */
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