From fe92ba7e68d80cc8a00bb48ae21a5c3573534910 Mon Sep 17 00:00:00 2001
From: zhaohe <h_zhaohe@163.com>
Date: Fri, 9 Feb 2024 03:17:05 +0800
Subject: [PATCH] change name scaner to name fuzzy scaner

---
 components/ble/common/ble_advdata.c | 55 +++++++++++++++++++++++++++++++++++++
 components/ble/common/ble_advdata.h |  4 ++-
 2 files changed, 58 insertions(+), 1 deletion(-)

diff --git a/components/ble/common/ble_advdata.c b/components/ble/common/ble_advdata.c
index 211d8ef..6b7e5e5 100644
--- a/components/ble/common/ble_advdata.c
+++ b/components/ble/common/ble_advdata.c
@@ -703,6 +703,61 @@ bool ble_advdata_name_find(uint8_t const * p_encoded_data,
     return false;
 }
 
+bool str_fuzzy_find(const char * target_name,const char* name,int namelen)
+{
+    if (name == NULL || target_name == NULL)
+    {
+        return false;
+    }
+    int len = namelen;
+    int target_len = strlen(target_name);
+    if (len < target_len)
+    {
+        return false;
+    }
+    for (int i = 0; i < len - target_len + 1; i++)
+    {
+        if (memcmp(name + i, target_name, target_len) == 0)
+        {
+            return true;
+        }
+    }
+    return false;
+
+}
+
+bool ble_advdata_name_fuzzy_find(uint8_t const * p_encoded_data,
+                           uint16_t        data_len,
+                           char    const * p_target_name)
+{
+    uint16_t        parsed_name_len;
+    uint8_t const * p_parsed_name;
+    uint16_t        data_offset          = 0;
+
+    if (p_target_name == NULL)
+    {
+        return false;
+    }
+
+
+    parsed_name_len = ble_advdata_search(p_encoded_data,
+                                         data_len,
+                                         &data_offset,
+                                         BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME);
+
+    p_parsed_name = &p_encoded_data[data_offset];
+
+    if (   (data_offset != 0)
+        && (parsed_name_len != 0)
+        && (str_fuzzy_find(p_target_name,p_parsed_name,parsed_name_len)))
+    {
+        return true;
+    }
+
+    return false;
+}
+
+
 
 bool ble_advdata_short_name_find(uint8_t const * p_encoded_data,
                                  uint16_t        data_len,
diff --git a/components/ble/common/ble_advdata.h b/components/ble/common/ble_advdata.h
index a254974..3f4c837 100644
--- a/components/ble/common/ble_advdata.h
+++ b/components/ble/common/ble_advdata.h
@@ -263,7 +263,9 @@ uint8_t * ble_advdata_parse(uint8_t  * p_encoded_data,
 bool ble_advdata_name_find(uint8_t const * p_encoded_data,
                            uint16_t        data_len,
                            char    const * p_target_name);
-
+bool ble_advdata_name_fuzzy_find(uint8_t const * p_encoded_data,
+                           uint16_t        data_len,
+                           char    const * p_target_name)
 
 /**@brief Function for searching through encoded Advertising data for a device shortened name.
  *