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/*
** $Id: log.c,v 1.7 2002/03/11 16:23:51 paul Exp $
**
** Copyright (C) 1996, 1997 Michael 'Ghandi' Herold
*/
#include "config.h"
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include "log.h"
#include "vboxgetty.h"
#include "libvbox.h"
/** Variables ************************************************************/
static FILE *logsio = NULL;
static long logdbg = L_DEFAULT;
/** Structures ***********************************************************/
static struct logsequence logsequence[] =
{
{ ETX , "<ETX>" }, { NL , "<NL>" }, { CR , "<CR>" },
{ DLE , "<DLE>" }, { XON , "<XON>" }, { XOFF, "<XOFF>" },
{ DC4 , "<DC4>" }, { CAN , "<CAN>" }, { 0 , NULL }
};
/**************************************************************************/
/** log_init(): Initialize the log functions. **/
/**************************************************************************/
int log_init(void)
{
char *device;
size_t size;
if (!(device = rindex(setup.modem.device, '/')))
device = setup.modem.device;
else
device++;
size = (strlen(LOGFILEDIR) + strlen("vboxgetty-.log") + strlen(device) + 2);
if ((setup.logname = (char *)malloc(size))) {
printstring(setup.logname, "%s/vboxgetty-%s.log", LOGFILEDIR, device);
if ((logsio = fopen(setup.logname, "a"))) {
log_debuglevel(L_DEFAULT);
returnok();
} else {
log(L_STDERR, "%s: Can't open log '%s'.\n", vbasename, setup.logname);
}
} else {
log(L_STDERR, "%s: Not enough memory to allocate logname.\n", vbasename);
}
returnerror();
}
/**************************************************************************/
/** log_exit(): Exits the log functions. **/
/**************************************************************************/
void log_exit(void)
{
if (logsio) {
fclose(logsio);
logsio = NULL;
}
if (setup.logname) {
free(setup.logname);
setup.logname = NULL;
}
}
/*************************************************************************/
/** log_debuglevel(): Sets the log debug level. **/
/*************************************************************************/
void log_debuglevel(long level)
{
logdbg = level;
}
/*************************************************************************/
/** log_line(): Writes a line to the log including the current date & **/
/** time and the log level. **/
/*************************************************************************/
void log_line(long level, char *fmt, ...)
{
struct tm *timel;
time_t timec;
va_list arg;
char logsign;
char timeline[20];
if ((logdbg & level) || (level == L_FATAL) || (level == L_STDERR)) {
if (!logsio) level = L_STDERR;
if (level == L_STDERR) {
va_start(arg, fmt);
vfprintf(stderr, fmt, arg);
va_end(arg);
}
else {
timec = time(NULL);
if ((timel = localtime(&timec))) {
if (strftime(timeline, 20, "%d-%b %H:%M:%S", timel) != 15) {
strcpy(timeline, "??" "-??" "? ??" ":??" ":??");
}
}
switch (level) {
case L_FATAL:
logsign = 'F';
break;
case L_ERROR:
logsign = 'E';
break;
case L_WARN:
logsign = 'W';
break;
case L_INFO:
logsign = 'I';
break;
case L_DEBUG:
logsign = 'D';
break;
case L_JUNK:
logsign = 'J';
break;
default:
logsign = '?';
break;
}
fprintf(logsio, "%s <%c> ", timeline, logsign);
va_start(arg, fmt);
vfprintf(logsio, fmt, arg);
va_end(arg);
fflush(logsio);
}
}
}
/*************************************************************************/
/** log_char(): Writes a char to the log. **/
/*************************************************************************/
void log_char(long level, char c)
{
int i;
if ((logdbg & level) || (level == L_FATAL) || (level == L_STDERR)) {
if (!isprint(c)) {
i = 0;
while (logsequence[i].text) {
if (logsequence[i].code == c) {
log_text(level, "%s", logsequence[i].text);
return;
}
i++;
}
log_text(level, "[0x%02X]", (unsigned char)c);
} else {
log_text(level, "%c", c);
}
}
}
/*************************************************************************/
/** log_text(): Writes a line to the log. **/
/*************************************************************************/
void log_text(long level, char *fmt, ...)
{
FILE *useio;
va_list arg;
if ((logdbg & level) || (level == L_FATAL) || (level == L_STDERR)) {
if ((!logsio) || (level == L_STDERR)) {
useio = stderr;
level = L_STDERR;
} else {
useio = logsio;
}
va_start(arg, fmt);
vfprintf(useio, fmt, arg);
va_end(arg);
fflush(useio);
}
}
/*************************************************************************/
/** log_code(): Writes a line with log_char() to the log. **/
/*************************************************************************/
void log_code(long level, char *sequence)
{
int i;
if ((logdbg & level) || (level == L_FATAL) || (level == L_STDERR)) {
for (i = 0; i < strlen(sequence); i++) {
log_char(level, sequence[i]);
}
}
}
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