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/* log.c
*
* Copyright (C) 1999 by Judd Montgomery
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef USE_FLOCK
#include <sys/file.h>
#else
#include <fcntl.h>
#endif
#include <signal.h>
#include <utime.h>
#include "log.h"
#include "utils.h"
#include "sync.h"
extern int pipe_in, pipe_out;
int glob_log_file_mask;
int glob_log_stdout_mask;
int glob_log_gui_mask;
int jpilot_logf(int level, char *format, ...)
{
#define WRITE_MAX_BUF 4096
va_list val;
char buf[WRITE_MAX_BUF];
int size;
static FILE *fp=NULL;
static int err_count=0;
if (!((level & glob_log_file_mask) ||
(level & glob_log_stdout_mask) ||
(level & glob_log_gui_mask))) {
return 0;
}
buf[0] = '\0';
if ((!fp) && (err_count>10)) {
return -1;
}
if ((!fp) && (err_count==10)) {
fprintf(stderr, "Cannot open log file, giving up.\n");
err_count++;
return -1;
}
if ((!fp) && (err_count<10)) {
fp = open_file("jpilot.log", "w");
if (!fp) {
fprintf(stderr, "Cannot open log file\n");
err_count++;
}
}
va_start(val, format);
size = g_vsnprintf(buf, WRITE_MAX_BUF ,format, val);
/*just in case g_vsnprintf reached the max */
if (size == -1) {
buf[WRITE_MAX_BUF-1] = '\0';
size=WRITE_MAX_BUF-1;
}
va_end(val);
if ((fp) && (level & glob_log_file_mask)) {
fwrite(buf, size, 1, fp);
}
if (level & glob_log_stdout_mask) {
fputs(buf, stdout);
}
if ((pipe_out) && (level & glob_log_gui_mask)) {
write(pipe_out, buf, size);
}
return 0;
}
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