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diff --git a/src/util-misc.h b/src/util-misc.h
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+++ b/src/util-misc.h
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+/* Copyright (C) 2007-2022 Open Information Security Foundation
+ *
+ * You can copy, redistribute or modify this Program under the terms of
+ * the GNU General Public License version 2 as published by the Free
+ * Software Foundation.
+ *
+ * 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
+ * version 2 along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * \file
+ *
+ * \author Anoop Saldanha <anoopsaldanha@gmail.com>
+ */
+
+#ifndef __UTIL_MISC_H__
+#define __UTIL_MISC_H__
+
+
+/**
+ * \brief Generic API that can be used by all to log an
+ *        invalid conf entry.
+ * \param param_name A string specifying the param name.
+ * \param format Format for the below value.  For example "%s", "%"PRIu32,
+                 etc.
+ * \param value Default value to be printed.
+ */
+#define WarnInvalidConfEntry(param_name, format, value)                                            \
+    do {                                                                                           \
+        SCLogWarning("Invalid conf entry found for "                                               \
+                     "\"%s\".  Using default value of \"" format "\".",                            \
+                param_name, value);                                                                \
+    } while (0)
+
+/* size string parsing API */
+
+int ParseSizeStringU8(const char *, uint8_t *);
+int ParseSizeStringU16(const char *, uint16_t *);
+int ParseSizeStringU32(const char *, uint32_t *);
+int ParseSizeStringU64(const char *, uint64_t *);
+
+#ifdef UNITTESTS
+void UtilMiscRegisterTests(void);
+#endif /* UNITTESTS */
+
+void ParseSizeInit(void);
+void ParseSizeDeinit(void);
+
+void ShortenString(const char *input,
+    char *output, size_t output_size, char c);
+
+#endif /* __UTIL_MISC_H__ */