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Wifi (Android): use yyjson to parse JSON string

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李通洲
2023-07-19 14:57:41 +08:00
committed by 李通洲
parent 8ef2bb788f
commit 396cec8033
1 changed files with 27 additions and 30 deletions
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src/detection/wifi/wifi_android.c
+27 -30
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@@ -6,6 +6,13 @@
#define FF_TERMUX_API_PATH FASTFETCH_TARGET_DIR_ROOT "/libexec/termux-api"
#define FF_TERMUX_API_PARAM "WifiConnectionInfo"
static inline void wrapYyjsonFree(yyjson_doc** doc)
{
assert(doc);
if (*doc)
yyjson_doc_free(*doc);
}
const char* ffDetectWifi(FFlist* result)
{
FF_STRBUF_AUTO_DESTROY buffer = ffStrbufCreate();
@@ -17,8 +24,13 @@ const char* ffDetectWifi(FFlist* result)
}))
return "Starting `" FF_TERMUX_API_PATH " " FF_TERMUX_API_PARAM "` failed";
if(buffer.chars[0] != '{')
return "`" FF_TERMUX_API_PATH " " FF_TERMUX_API_PARAM "` prints invalid result (not a JSON object)";
yyjson_doc* __attribute__((__cleanup__(wrapYyjsonFree))) doc = yyjson_read_opts(buffer.chars, buffer.length, 0, NULL, NULL);
if (!doc)
return "Failed to parse wifi connection info";
yyjson_val* root = yyjson_doc_get_root(doc);
if (!yyjson_is_obj(root))
return "Wifi info result is not a JSON object";
FFWifiResult* item = (FFWifiResult*)ffListAdd(result);
ffStrbufInit(&item->inf.description);
@@ -32,37 +44,22 @@ const char* ffDetectWifi(FFlist* result)
item->conn.rxRate = 0.0/0.0;
item->conn.txRate = 0.0/0.0;
if(!ffParsePropLines(buffer.chars, "\"supplicant_state\": ", &item->inf.status))
ffStrbufAppendS(&item->inf.status, yyjson_get_str(yyjson_obj_get(root, "supplicant_state")));
if(!item->inf.status.length)
{
ffStrbufAppendS(&item->inf.status, "Unknown");
{
ffStrbufTrimRight(&item->inf.status, ',');
ffStrbufTrim(&item->inf.status, '"');
if(!ffStrbufEqualS(&item->inf.status, "COMPLETED"))
return NULL;
return NULL;
}
if(ffParsePropLines(buffer.chars, "\"rssi\": ", &item->inf.description))
{
double rssi = ffStrbufToDouble(&item->inf.description);
item->conn.signalQuality = rssi >= -50 ? 100 : rssi <= -100 ? 0 : (rssi + 100) * 2;
ffStrbufClear(&item->inf.description);
}
if(ffParsePropLines(buffer.chars, "\"network_id\": ", &item->inf.description))
ffStrbufTrimRight(&item->inf.description, ',');
if(ffParsePropLines(buffer.chars, "\"bssid\": ", &item->conn.macAddress))
{
ffStrbufTrimRight(&item->conn.macAddress, ',');
ffStrbufTrim(&item->conn.macAddress, '"');
}
if(ffParsePropLines(buffer.chars, "\"ssid\": ", &item->conn.ssid))
{
ffStrbufTrimRight(&item->conn.ssid, ',');
ffStrbufTrim(&item->conn.ssid, '"');
}
if(!ffStrbufEqualS(&item->inf.status, "COMPLETED"))
return NULL;
double rssi = yyjson_get_num(yyjson_obj_get(root, "rssi"));
item->conn.signalQuality = rssi >= -50 ? 100 : rssi <= -100 ? 0 : (rssi + 100) * 2;
ffStrbufAppendS(&item->inf.description, yyjson_get_str(yyjson_obj_get(root, "ip")));
ffStrbufAppendS(&item->conn.macAddress, yyjson_get_str(yyjson_obj_get(root, "bssid")));
ffStrbufAppendS(&item->conn.ssid, yyjson_get_str(yyjson_obj_get(root, "ssid")));
return NULL;
}