- remove unnecessary median buffers

- change some variable declaration locations
- use socket recv instead of read
  o do error handling after each socket operation

sdkconfig.old

@@ -286,9 +286,9 @@ CONFIG_ESP_DISPATCHER_DELEGATE_STACK_SIZE=4096
 #
 # Compiler options
 #
-CONFIG_COMPILER_OPTIMIZATION_DEFAULT=y
+# CONFIG_COMPILER_OPTIMIZATION_DEFAULT is not set
 # CONFIG_COMPILER_OPTIMIZATION_SIZE is not set
-# CONFIG_COMPILER_OPTIMIZATION_PERF is not set
+CONFIG_COMPILER_OPTIMIZATION_PERF=y
 # CONFIG_COMPILER_OPTIMIZATION_NONE is not set
 CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_ENABLE=y
 # CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_SILENT is not set
@@ -774,7 +774,6 @@ CONFIG_FREERTOS_TIMER_QUEUE_LENGTH=10
 CONFIG_FREERTOS_QUEUE_REGISTRY_SIZE=0
 # CONFIG_FREERTOS_USE_TRACE_FACILITY is not set
 # CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS is not set
-CONFIG_FREERTOS_TASK_FUNCTION_WRAPPER=y
 CONFIG_FREERTOS_CHECK_MUTEX_GIVEN_BY_OWNER=y
 # CONFIG_FREERTOS_CHECK_PORT_CRITICAL_COMPLIANCE is not set
 CONFIG_FREERTOS_DEBUG_OCDAWARE=y
@@ -1044,10 +1043,10 @@ CONFIG_MBEDTLS_ECP_NIST_OPTIM=y
 CONFIG_MDNS_MAX_SERVICES=10
 CONFIG_MDNS_TASK_PRIORITY=1
 CONFIG_MDNS_TASK_STACK_SIZE=4096
-# CONFIG_MDNS_TASK_AFFINITY_NO_AFFINITY is not set
-CONFIG_MDNS_TASK_AFFINITY_CPU0=y
+CONFIG_MDNS_TASK_AFFINITY_NO_AFFINITY=y
+# CONFIG_MDNS_TASK_AFFINITY_CPU0 is not set
 # CONFIG_MDNS_TASK_AFFINITY_CPU1 is not set
-CONFIG_MDNS_TASK_AFFINITY=0x0
+CONFIG_MDNS_TASK_AFFINITY=0x7FFFFFFF
 CONFIG_MDNS_SERVICE_ADD_TIMEOUT_MS=2000
 CONFIG_MDNS_TIMER_PERIOD_MS=100
 # end of mDNS
@@ -1258,7 +1257,7 @@ CONFIG_MONITOR_BAUD_115200B=y
 # CONFIG_MONITOR_BAUD_OTHER is not set
 CONFIG_MONITOR_BAUD_OTHER_VAL=115200
 CONFIG_MONITOR_BAUD=115200
-CONFIG_COMPILER_OPTIMIZATION_LEVEL_DEBUG=y
+# CONFIG_COMPILER_OPTIMIZATION_LEVEL_DEBUG is not set
 # CONFIG_COMPILER_OPTIMIZATION_LEVEL_RELEASE is not set
 CONFIG_OPTIMIZATION_ASSERTIONS_ENABLED=y
 # CONFIG_OPTIMIZATION_ASSERTIONS_SILENT is not set