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diff --git a/lib/umberlog_preload.c b/lib/umberlog_preload.c
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+/* umberlog_preload.c -- CEE-enhanced syslog API, LD_PRELOAD version
+ *
+ * Copyright (c) 2012 BalaBit IT Security Ltd.
+ * 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 BALABIT 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 BALABIT 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 _GNU_SOURCE 1
+
+#define __UL_PRELOAD__ 1
+
+#include "umberlog.c"
+
+#if HAVE___SYSLOG_CHK
+void
+__syslog_chk (int __pri, int __flag, __const char *__fmt, ...)
+{
+ va_list ap;
+
+ va_start (ap, __fmt);
+ ul_legacy_vsyslog (__pri, __fmt, ap);
+ va_end (ap);
+}
+
+void
+__vsyslog_chk (int __pri, int __flag, __const char *__fmt, va_list ap)
+{
+ ul_legacy_vsyslog (__pri, __fmt, ap);
+}
+#endif
+
+void openlog (const char *ident, int option, int facility)
+ __attribute__((alias ("ul_openlog")));
+
+void closelog (void)
+ __attribute__((alias ("ul_closelog")));
+
+#undef syslog
+void syslog (int priority, const char *msg_format, ...)
+ __attribute__((alias ("ul_legacy_syslog")));
+
+#undef vsyslog
+void vsyslog (int priority, const char *msg_format, va_list ap)
+ __attribute__((alias ("ul_legacy_vsyslog")));