1 files changed, 101 insertions, 0 deletions

diff --git a/src/log.c b/src/log.c
new file mode 100644
index 0000000..cd7c2d5
--- /dev/null
+++ b/src/log.c
@@ -0,0 +1,101 @@
+/*
+ * log.c
+ *
+ * Copyright (C) 2009 Hector Martin <hector@marcansoft.com>
+ * Copyright (C) 2009 Nikias Bassen <nikias@gmx.li>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  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"
+#include "utils.h"
+
+unsigned 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;
+
+        if(level > log_level)
+                return;
+
+        fs = malloc(20 + strlen(fmt));
+
+        if(log_syslog) {
+                sprintf(fs, "[%d] %s\n", level, fmt);
+        } else {
+                struct timeval ts;
+                struct tm tp_;
+                struct tm *tp;
+
+                gettimeofday(&ts, NULL);
+#ifdef HAVE_LOCALTIME_R
+                tp = localtime_r(&ts.tv_sec, &tp_);
+#else
+                tp = localtime(&ts.tv_sec);
+#endif
+
+                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);
+}