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Allow IP address to be passed into gethostbyname().

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Ensure xNetworkBuffersInitialise() doesn't use a semaphore before it has been tested against NULL.
This commit is contained in:
Richard Barry 2018-02-18 19:58:26 +00:00
parent 7ddb8b342d
commit ff74e7aa63
2 changed files with 35 additions and 23 deletions
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33
FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/portable/BufferManagement/BufferAllocation_2.c
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@ -103,24 +103,25 @@ BaseType_t xReturn, x;
{
xNetworkBufferSemaphore = xSemaphoreCreateCounting( ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS, ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS );
configASSERT( xNetworkBufferSemaphore );
#if ( configQUEUE_REGISTRY_SIZE > 0 )
{
vQueueAddToRegistry( xNetworkBufferSemaphore, "NetBufSem" );
}
#endif /* configQUEUE_REGISTRY_SIZE */
/* If the trace recorder code is included name the semaphore for viewing
in FreeRTOS+Trace. */
#if( ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS == 1 )
{
extern QueueHandle_t xNetworkEventQueue;
vTraceSetQueueName( xNetworkEventQueue, "IPStackEvent" );
vTraceSetQueueName( xNetworkBufferSemaphore, "NetworkBufferCount" );
}
#endif /* ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS == 1 */
if( xNetworkBufferSemaphore != NULL )
{
#if ( configQUEUE_REGISTRY_SIZE > 0 )
{
vQueueAddToRegistry( xNetworkBufferSemaphore, "NetBufSem" );
}
#endif /* configQUEUE_REGISTRY_SIZE */
/* If the trace recorder code is included name the semaphore for viewing
in FreeRTOS+Trace. */
#if( ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS == 1 )
{
extern QueueHandle_t xNetworkEventQueue;
vTraceSetQueueName( xNetworkEventQueue, "IPStackEvent" );
vTraceSetQueueName( xNetworkBufferSemaphore, "NetworkBufferCount" );
}
#endif /* ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS == 1 */
vListInitialise( &xFreeBuffersList );
/* Initialise all the network buffers. No storage is allocated to
@ -374,7 +375,7 @@ uint8_t *pucBuffer;
vReleaseNetworkBuffer( pxNetworkBuffer->pucEthernetBuffer );
pxNetworkBuffer->pucEthernetBuffer = pucBuffer;
}
return pxNetworkBuffer;
}