header: move to a dedicated pcapplusplus folder to follow install hie…

…rarchy

Common++/CMakeLists.txt

@@ -12,20 +12,20 @@ add_library(
   src/TablePrinter.cpp)
 
 set(public_headers
-    header/DeprecationUtils.h
-    header/GeneralUtils.h
-    header/IpAddress.h
-    header/IpAddressUtils.h
-    header/IpUtils.h
-    header/Logger.h
-    header/LRUList.h
-    header/MacAddress.h
-    header/OUILookup.h
-    header/PcapPlusPlusVersion.h
-    header/PointerVector.h
-    header/SystemUtils.h
-    header/TablePrinter.h
-    header/TimespecTimeval.h)
+    header/pcapplusplus/DeprecationUtils.h
+    header/pcapplusplus/GeneralUtils.h
+    header/pcapplusplus/IpAddress.h
+    header/pcapplusplus/IpAddressUtils.h
+    header/pcapplusplus/IpUtils.h
+    header/pcapplusplus/Logger.h
+    header/pcapplusplus/LRUList.h
+    header/pcapplusplus/MacAddress.h
+    header/pcapplusplus/OUILookup.h
+    header/pcapplusplus/PcapPlusPlusVersion.h
+    header/pcapplusplus/PointerVector.h
+    header/pcapplusplus/SystemUtils.h
+    header/pcapplusplus/TablePrinter.h
+    header/pcapplusplus/TimespecTimeval.h)
 
 # Set the public header that will be installed
 set_property(TARGET Common++ PROPERTY PUBLIC_HEADER ${public_headers})

Common++/header/pcapplusplus/DeprecationUtils.h

@@ -0,0 +1,39 @@
+#pragma once
+
+/// @file
+
+#ifndef PCPP_DEPRECATED
+#	if defined(__GNUC__) || defined(__clang__)
+#		define PCPP_DEPRECATED(msg) __attribute__((deprecated(msg)))
+#	elif defined(_MSC_VER)
+#		define PCPP_DEPRECATED(msg) __declspec(deprecated(msg))
+#	else
+#		pragma message("WARNING: DEPRECATED feature is not implemented for this compiler")
+#		define PCPP_DEPRECATED(msg)
+#	endif
+#endif
+
+#if !defined(DISABLE_WARNING_PUSH) || !defined(DISABLE_WARNING_POP)
+#	if defined(_MSC_VER)
+#		define DISABLE_WARNING_PUSH __pragma(warning(push))
+#		define DISABLE_WARNING_POP __pragma(warning(pop))
+#		define DISABLE_WARNING(warningNumber) __pragma(warning(disable : warningNumber))
+
+#		define DISABLE_WARNING_DEPRECATED DISABLE_WARNING(4996)
+#	elif defined(__GNUC__) || defined(__clang__)
+#		define DO_PRAGMA(X) _Pragma(#X)
+#		define DISABLE_WARNING_PUSH DO_PRAGMA(GCC diagnostic push)
+#		define DISABLE_WARNING_POP DO_PRAGMA(GCC diagnostic pop)
+#		define DISABLE_WARNING(warningName) DO_PRAGMA(GCC diagnostic ignored #warningName)
+
+// clang-format off
+#		define DISABLE_WARNING_DEPRECATED DISABLE_WARNING(-Wdeprecated-declarations)
+// clang-format on
+#	else
+#		pragma message("WARNING: Disabling of warnings is not implemented for this compiler")
+#		define DISABLE_WARNING_PUSH
+#		define DISABLE_WARNING_POP
+
+#		define DISABLE_WARNING_DEPRECATED
+#	endif
+#endif

Common++/header/pcapplusplus/GeneralUtils.h

@@ -0,0 +1,80 @@
+#pragma once
+
+#include <string>
+#include <stdint.h>
+#include <type_traits>
+
+/// @file
+
+/**
+ * \namespace pcpp
+ * \brief The main namespace for the PcapPlusPlus lib
+ */
+namespace pcpp
+{
+	/**
+	 * Convert a byte array into a string of hex characters. For example: for the array { 0xaa, 0x2b, 0x10 } the string
+	 * "aa2b10" will be returned
+	 * @param[in] byteArr A byte array
+	 * @param[in] byteArrSize The size of the byte array [in bytes]
+	 * @param[in] stringSizeLimit An optional parameter that enables to limit the returned string size. If set to a
+	 * positive integer value the returned string size will be equal or less than this value. If the string
+	 * representation of the whole array is longer than this size then only part of the array will be read. The default
+	 * value is -1 which means no string size limitation
+	 * @return A string of hex characters representing the byte array
+	 */
+	std::string byteArrayToHexString(const uint8_t* byteArr, size_t byteArrSize, int stringSizeLimit = -1);
+
+	/**
+	 * Convert a string of hex characters into a byte array. For example: for the string "aa2b10" an array of values
+	 * { 0xaa, 0x2b, 0x10 } will be returned
+	 * @param[in] hexString A string of hex characters
+	 * @param[out] resultByteArr A pre-allocated byte array where the result will be written to
+	 * @param[in] resultByteArrSize The size of the pre-allocated byte array
+	 * @return The size of the result array. If the string represents an array that is longer than the pre-allocated
+	 * size (resultByteArrSize) then the result array will contain only the part of the string that managed to fit into
+	 * the array, and the returned size will be resultByteArrSize. However if the string represents an array that is
+	 * shorter than the pre-allocated size then some of the cells will remain empty and contain zeros, and the returned
+	 * size will be the part of the array that contain data. If the input is an illegal hex string 0 will be returned.
+	 * Illegal hex string means odd number of characters or a string that contains non-hex characters
+	 */
+	size_t hexStringToByteArray(const std::string& hexString, uint8_t* resultByteArr, size_t resultByteArrSize);
+
+	/**
+	 * This is a cross platform version of memmem (https://man7.org/linux/man-pages/man3/memmem.3.html) which is not
+	 * supported on all platforms.
+	 * @param[in] haystack A pointer to the buffer to be searched
+	 * @param[in] haystackLen Length of the haystack buffer
+	 * @param[in] needle A pointer to a buffer that will be searched for
+	 * @param[in] needleLen Length of the needle buffer
+	 * @return A pointer to the beginning of the substring, or nullptr if the substring is not found
+	 */
+	char* cross_platform_memmem(const char* haystack, size_t haystackLen, const char* needle, size_t needleLen);
+
+	/**
+	 * Calculates alignment.
+	 * @param[in] number Given number
+	 * @return The aligned number
+	 */
+	template <int alignment> static int align(int number)
+	{
+		// Only works for alignment with power of 2
+		constexpr bool isPowerOfTwo = alignment && ((alignment & (alignment - 1)) == 0);
+		static_assert(isPowerOfTwo, "Alignment must be a power of 2");
+		int mask = alignment - 1;
+		return (number + mask) & ~mask;
+	}
+
+	/**
+	 * A template class to calculate enum class hash
+	 * @tparam EnumClass
+	 */
+	template <typename EnumClass, typename std::enable_if<std::is_enum<EnumClass>::value, bool>::type = false>
+	struct EnumClassHash
+	{
+		size_t operator()(EnumClass value) const
+		{
+			return static_cast<typename std::underlying_type<EnumClass>::type>(value);
+		}
+	};
+}  // namespace pcpp