1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/builtin_openssl2/crypto/bio/b_dump.c b/drivers/builtin_openssl2/crypto/bio/b_dump.c
index 87c8162c5e..ccf0e287c4 100644
--- a/drivers/builtin_openssl2/crypto/bio/b_dump.c
+++ b/drivers/builtin_openssl2/crypto/bio/b_dump.c
@@ -181,3 +181,28 @@ int BIO_dump_indent(BIO *bp, const char *s, int len, int indent)
 {
     return BIO_dump_indent_cb(write_bio, bp, s, len, indent);
 }
+
+int BIO_hex_string(BIO *out, int indent, int width, unsigned char *data,
+                   int datalen)
+{
+    int i, j = 0;
+
+    if (datalen < 1)
+        return 1;
+
+    for (i = 0; i < datalen - 1; i++) {
+        if (i && !j)
+            BIO_printf(out, "%*s", indent, "");
+
+        BIO_printf(out, "%02X:", data[i]);
+
+        j = (j + 1) % width;
+        if (!j)
+            BIO_printf(out, "\n");
+    }
+
+    if (i && !j)
+        BIO_printf(out, "%*s", indent, "");
+    BIO_printf(out, "%02X", data[datalen - 1]);
+    return 1;
+}