1 files changed, 79 insertions, 0 deletions
diff --git a/rtrlib/lib/ipv4_private.h b/rtrlib/lib/ipv4_private.h
new file mode 100644
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+++ b/rtrlib/lib/ipv4_private.h
@@ -0,0 +1,79 @@
+/*
+ * This file is part of RTRlib.
+ *
+ * This file is subject to the terms and conditions of the MIT license.
+ * See the file LICENSE in the top level directory for more details.
+ *
+ * Website: http://rtrlib.realmv6.org/
+ */
+
+#ifndef LRTR_IPV4_PRIVATE_H
+#define LRTR_IPV4_PRIVATE_H
+
+#include "ipv4.h"
+
+#include "rtrlib/lib/convert_byte_order_private.h"
+
+#include <inttypes.h>
+#include <stdbool.h>
+
+/**
+ * @brief Extracts number bits from the passed ipv4_addr,
+ *
+ * Starting at bit number from. The bit with the highest significance is bit 0.
+ * All bits that aren't in the specified range will be 0.
+ *
+ * @param[in] val ipv4_addr
+ * @param[in] from Position of the first bit that is extracted.
+ * @param[in] number How many bits will be extracted.
+ *
+ * @returns An ipv4_addr, with all bits not in the specified range set to 0.
+ */
+struct lrtr_ipv4_addr lrtr_ipv4_get_bits(const struct lrtr_ipv4_addr *val, const uint8_t from, const uint8_t number);
+
+/**
+ * @brief Converts ab IPv4 address from string to ipv4_addr struct.
+ *
+ * @param[in] str Pointer to a string buffer.
+ * @param[out] ip ipv4_addr
+ *
+ * @result 0 on success
+ * @result -1 on error
+ */
+int lrtr_ipv4_str_to_addr(const char *str, struct lrtr_ipv4_addr *ip);
+
+/**
+ * @brief Converts an ipv4_addr struct to its string representation.
+ *
+ * @param[in] ip ipv4_addr
+ * @param[out] str Pointer to a string buffer, of at least INET_ADDRSTRLEN.
+ * @param[in] length of *str
+ *
+ * @result 0 on success
+ * @result -1 on error
+ */
+int lrtr_ipv4_addr_to_str(const struct lrtr_ipv4_addr *ip, char *str, const unsigned int len);
+
+/**
+ * @brief Compares two ipv4_addr structs.
+ *
+ * @param[in] a ipv4_addr
+ * @param[in] b ipv4_addr
+ *
+ * @return true if a == b
+ * @return false if a != b
+ */
+bool lrtr_ipv4_addr_equal(const struct lrtr_ipv4_addr *a, const struct lrtr_ipv4_addr *b);
+
+/**
+ * @ingroup util_h[{
+ * @brief Converts the passed IPv4 address to given byte order.
+ *
+ * @param[in] src       IPv4 address in source byte order.
+ * @param[out] dest     IPv4 address in target byte order.
+ * @param[in] tbo       Target byte order for address conversion.
+ * }
+ */
+void lrtr_ipv4_addr_convert_byte_order(const uint32_t src, uint32_t *dest, const enum target_byte_order tbo);
+
+#endif