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-rw-r--r--daemon/log.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/daemon/log.c b/daemon/log.c
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+++ b/daemon/log.c
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+/*
+ usbmuxd - iPhone/iPod Touch USB multiplex server daemon
+
+Copyright (C) 2009 Hector Martin "marcan" <hector@marcansoft.com>
+
+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 or version 3.
+
+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
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <time.h>
+#include <sys/time.h>
+#include <syslog.h>
+
+#include "log.h"
+
+int log_level = LL_WARNING;
+
+int log_syslog = 0;
+
+void log_enable_syslog()
+{
+ if (!log_syslog) {
+ openlog("usbmuxd", LOG_PID, 0);
+ log_syslog = 1;
+ }
+}
+
+void log_disable_syslog()
+{
+ if (log_syslog) {
+ closelog();
+ }
+}
+
+static int level_to_syslog_level(int level)
+{
+ int result = level + LOG_CRIT;
+ if (result > LOG_DEBUG) {
+ result = LOG_DEBUG;
+ }
+ return result;
+}
+
+void usbmuxd_log(enum loglevel level, const char *fmt, ...)
+{
+ va_list ap;
+ char *fs;
+ struct timeval ts;
+ struct tm *tp;
+
+ gettimeofday(&ts, NULL);
+ tp = localtime(&ts.tv_sec);
+
+ if(level > log_level)
+ return;
+
+ fs = malloc(20 + strlen(fmt));
+
+ if(log_syslog) {
+ sprintf(fs, "[%d] %s\n", level, fmt);
+ } else {
+ strftime(fs, 10, "[%H:%M:%S", tp);
+ sprintf(fs+9, ".%03d][%d] %s\n", (int)(ts.tv_usec / 1000), level, fmt);
+ }
+
+ va_start(ap, fmt);
+ if (log_syslog) {
+ vsyslog(level_to_syslog_level(level), fs, ap);
+ } else {
+ vfprintf(stderr, fs, ap);
+ }
+ va_end(ap);
+
+ free(fs);
+}