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-rw-r--r--workspace/customdhcpcd/src/logger.c126
1 files changed, 126 insertions, 0 deletions
diff --git a/workspace/customdhcpcd/src/logger.c b/workspace/customdhcpcd/src/logger.c
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+++ b/workspace/customdhcpcd/src/logger.c
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+/*
+ * 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
+
+#define COM_CH "/var/tmp/com.socket"
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#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);
+}
+