Add missing function getSocketOption (#7807)

* Update WiFiClient.h

Added missing getSocketOption() with full access to level and option

* Update WiFiClient.h

* Handle timeout settings below 1 second

Fix error with connect timeout settings below 1000ms.
Add getsocketoptions function.

* Add cast for setsockopt length

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Co-authored-by: Me No Dev <[email protected]>

Author: rtpmsys

Diff for: libraries/WiFi/src/WiFiClient.cpp

@@ -322,6 +322,16 @@ int WiFiClient::setSocketOption(int level, int option, const void* value, size_t
     return res;
 }
 
+int WiFiClient::getSocketOption(int level, int option, const void* value, size_t size)
+{
+    int res = getsockopt(fd(), level, option, (char *)value, (socklen_t*)&size);
+    if(res < 0) {
+        log_e("fail on fd %d, errno: %d, \"%s\"", fd(), errno, strerror(errno));
+    }
+    return res;
+}
+
+
 int WiFiClient::setTimeout(uint32_t seconds)
 {
     Client::setTimeout(seconds * 1000); // This should be here?

Diff for: libraries/WiFi/src/WiFiClient.h

@@ -88,6 +88,7 @@ class WiFiClient : public ESPLwIPClient
 
     int setSocketOption(int option, char* value, size_t len);
     int setSocketOption(int level, int option, const void* value, size_t len);
+    int getSocketOption(int level, int option, const void* value, size_t size);
     int setOption(int option, int *value);
     int getOption(int option, int *value);
     int setTimeout(uint32_t seconds);