1 files changed, 119 insertions, 0 deletions
diff --git a/workspace/networkDiscovery/dhcpcd/logger.c b/workspace/networkDiscovery/dhcpcd/logger.c
new file mode 100644
index 0000000..99f845f
--- /dev/null
+++ b/workspace/networkDiscovery/dhcpcd/logger.c
@@ -0,0 +1,119 @@
+/* 
+ * dhcpcd - DHCP client daemon
+ * Copyright 2006-2008 Roy Marples <roy@marples.name>
+ * All rights reserved
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#define SYSLOG_NAMES
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+
+#include "common.h"
+#include "logger.h"
+
+static int loglevel = LOG_WARNING;
+static char logprefix[12] = {0};
+
+int logtolevel (const char *priority)
+{
+	CODE *c;
+
+	if (isdigit ((int) *priority))
+		return (atoi (priority));
+
+	for (c = prioritynames; c->c_name; c++)
+		if (! strcasecmp (priority, c->c_name))
+			return (c->c_val);
+
+	return (-1);
+}
+
+static const char *leveltolog (int level) {
+	CODE *c;
+
+	for (c = prioritynames; c->c_name; c++)
+		if (c->c_val == level)
+			return (c->c_name);
+
+	return (NULL);
+}
+
+void setloglevel (int level)
+{
+	loglevel = level;
+}
+
+void setlogprefix (const char *prefix)
+{
+	snprintf (logprefix, sizeof (logprefix), "%s", prefix);
+}
+
+void logger (int level, const char *fmt, ...)
+{
+	va_list p;
+	va_list p2;
+	FILE *f = stderr;
+
+	va_start (p, fmt);
+	va_copy (p2, p);
+
+	if (level <= LOG_ERR || level <= loglevel) {
+		if (level == LOG_DEBUG || level == LOG_INFO)
+			f = stdout;
+		fprintf (f, "%s, %s", leveltolog (level), logprefix);
+		vfprintf (f, fmt, p);
+		fputc ('\n', f);
+
+		/* stdout, stderr may be re-directed to some kind of buffer.
+		 * So we always flush to ensure it's written. */
+		fflush (f);
+	}
+
+	if (level < LOG_DEBUG || level <= loglevel) {
+		size_t len = strlen (logprefix);
+		size_t fmt2len = strlen (fmt) + len + 1;
+		char *fmt2 = malloc (sizeof (char) * fmt2len);
+		char *pf = fmt2;
+		if (fmt2) {
+			memcpy (pf, logprefix, len);
+			pf += len;
+			strlcpy (pf, fmt, fmt2len - len);
+			vsyslog (level, fmt2, p2);
+			free (fmt2);
+		} else {
+			vsyslog (level, fmt, p2);
+			syslog (LOG_ERR, "logger: memory exhausted");
+			exit (EXIT_FAILURE);
+		}
+	}
+
+	va_end (p2);
+	va_end (p);
+}
+