From: Alan T. DeKok <aland@freeradius.org>
Date: Tue, 13 Jan 2026 21:26:32 +0000 (-0500)
Subject: add function to get integer, etc. from memory
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=02a3e889d20c8bae16573b0415ae997e6ec28ac1;p=thirdparty%2Ffreeradius-server.git

add function to get integer, etc. from memory

which can then be used by the statistics functions
---

diff --git a/src/lib/util/value.c b/src/lib/util/value.c
index fe81ae305d7..c37c0f763a7 100644
--- a/src/lib/util/value.c
+++ b/src/lib/util/value.c
@@ -2421,6 +2421,77 @@ ssize_t fr_value_box_ipaddr_from_network(fr_value_box_t *dst, fr_type_t type, fr
 	return data_len;
 }
 
+/** Decode a #fr_value_box_t from a C type in memory
+ *
+ *  We ignore arrays
+ *
+ * @param[in] ctx	Where to allocate any talloc buffers required.
+ * @param[out] dst	value_box to write the result to.
+ * @param[in] type	to decode data to.
+ * @param[in] enumv	Aliases for values.
+ * @param[in] src	raw pointer to the (possibly unaligned) source
+ * @param[in] len	Length of data to decode.  For fixed length types we only
+ *			decode complete values.
+ * @return
+ *	- >= 0 The number of bytes consumed.
+ *	- <0 an error occured
+ */
+ssize_t	fr_value_box_from_memory(TALLOC_CTX *ctx,
+				 fr_value_box_t *dst, fr_type_t type, fr_dict_attr_t const *enumv,
+				 void const *src, size_t len)
+{
+	switch (type) {
+	case FR_TYPE_INTEGER_EXCEPT_BOOL:
+	case FR_TYPE_FLOAT32:
+	case FR_TYPE_FLOAT64:
+		if (len != fr_value_box_field_sizes[type]) {
+			fr_strerror_printf("Invalid size passed for type %s - expected %zu got %zu",
+					   fr_type_to_str(type), fr_value_box_field_sizes[type], len);
+				return -1;
+		}
+
+		fr_value_box_init(dst, type, enumv, false);
+		memcpy(&dst->datum, src, len);
+		break;
+
+	case FR_TYPE_IPV4_ADDR:
+		if (len != sizeof(struct in_addr)) {
+			fr_strerror_printf("Invalid size passed for type %s - expected %zu got %zu",
+					   fr_type_to_str(type), sizeof(struct in_addr), len);
+				return -1;
+		}
+
+		fr_value_box_init(dst, type, enumv, false);
+		memcpy(&dst->vb_ipv4addr, src, len);
+		break;
+
+	case FR_TYPE_IPV6_ADDR:
+		if (len != sizeof(struct in6_addr)) {
+			fr_strerror_printf("Invalid size passed for type %s - expected %zu got %zu",
+					   fr_type_to_str(type), sizeof(struct in6_addr), len);
+			return -1;
+		}
+
+		fr_value_box_init(dst, type, enumv, false);
+		memcpy(&dst->vb_ipv6addr, src, len);
+		break;
+
+	case FR_TYPE_STRING:
+		return fr_value_box_bstrndup(ctx, dst, enumv, src, len, false);
+
+	case FR_TYPE_OCTETS:
+		return fr_value_box_memdup(ctx, dst, enumv, src, len, false);
+
+	default:
+		fr_strerror_printf("Unsupported data type %s",
+				   fr_type_to_str(type));
+		return -1;
+	}
+
+	return len;
+}
+
+
 /** Get a key from a value box
  *
  * @param[in,out] out - set to a small buffer on input.  If the callback has more data
diff --git a/src/lib/util/value.h b/src/lib/util/value.h
index 8688d8a66e6..3c187f41fb4 100644
--- a/src/lib/util/value.h
+++ b/src/lib/util/value.h
@@ -1058,6 +1058,11 @@ ssize_t		fr_value_box_ipaddr_from_network(fr_value_box_t *dst, fr_type_t type, f
 						 int prefix_len, uint8_t const *data, size_t data_len, bool fixed, bool tainted)
 		CC_HINT(nonnull(1,5));
 
+ssize_t		fr_value_box_from_memory(TALLOC_CTX *ctx,
+					 fr_value_box_t *dst, fr_type_t type, fr_dict_attr_t const *enumv,
+					 void const *src, size_t len)
+		CC_HINT(nonnull(2,5));
+
 int		fr_value_box_cast(TALLOC_CTX *ctx, fr_value_box_t *dst,
 				  fr_type_t dst_type, fr_dict_attr_t const *dst_enumv,
 				  fr_value_box_t const *src)