initial commit

1 files changed, 72 insertions, 0 deletions

diff --git a/log.c b/log.c
new file mode 100644
index 0000000..29bd66f
--- /dev/null
+++ b/log.c
@@ -0,0 +1,72 @@
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <unistd.h>
+
+#include "log.h"
+
+static int verbose;
+
+void log_init(int v)
+{
+	verbose = v;
+	openlog("sntpd", LOG_PERROR | LOG_PID, LOG_DAEMON);
+}
+
+
+void log_error(const char *format, ...)
+{
+	va_list va;
+	va_start(va, format);
+	vsyslog(LOG_ERR, format, va);
+	va_end(va);
+}
+
+
+void log_perror(const char *message)
+{
+	log_error("%s: %s", message, strerror(errno));
+}
+
+
+void log_warning(const char *format, ...)
+{
+	va_list va;
+	va_start(va, format);
+	vsyslog(LOG_WARNING, format, va);
+	va_end(va);
+}
+
+void log_critical(const char *format, ...)
+{
+	va_list va;
+	va_start(va, format);
+	vsyslog(LOG_CRIT, format, va);
+	va_end(va);
+}
+
+void log_debug(const char *format, ...)
+{
+	if (verbose) {
+		va_list va;
+		va_start(va, format);
+		vsyslog(LOG_DEBUG, format, va);
+		va_end(va);
+	}
+}
+
+void fatal(const char *emsg)
+{
+	if (emsg == NULL)
+		log_critical("fatal: %s", strerror(errno));
+	else
+		if (errno)
+			log_critical("fatal: %s: %s", emsg, strerror(errno));
+		else
+			log_critical("fatal: %s", emsg);
+	exit(1);
+}
+