Created handler for AtomicWriteFile service. Added it to the demo/server example.

bacnet-stack/demo/object/bacfile.c

@@ -374,3 +374,30 @@ bool bacfile_read_data(BACNET_ATOMIC_READ_FILE_DATA * data)
 
     return found;
 }
+
+bool bacfile_write_stream_data(BACNET_ATOMIC_WRITE_FILE_DATA * data)
+{
+    char *pFilename = NULL;
+    bool found = false;
+    FILE *pFile = NULL;
+
+    pFilename = bacfile_name(data->object_instance);
+    if (pFilename) {
+        found = true;
+        /* open the file as a clean slate when starting at 0 */
+        if (data->type.stream.fileStartPosition == 0)
+          pFile = fopen(pFilename, "wb");
+        else
+          pFile = fopen(pFilename, "rb+");
+        if (pFile) {
+            (void)fseek(pFile, data->type.stream.fileStartPosition, SEEK_SET);
+            if (fwrite(octetstring_value(&data->fileData),
+	        octetstring_length(&data->fileData),1,pFile) != 1) {
+			
+	    }
+            fclose(pFile);
+        }
+    }
+
+    return found;
+}

bacnet-stack/demo/object/bacfile.h

@@ -40,6 +40,7 @@
 #include "bacenum.h"
 #include "apdu.h"
 #include "arf.h"
+#include "awf.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -51,16 +52,17 @@ extern "C" {
     uint32_t bacfile_index_to_instance(unsigned find_index);
     uint32_t bacfile_instance(char *filename);
 #if TSM_ENABLED
-/* this is one way to match up the invoke ID with */
-/* the file ID from the AtomicReadFile request. */
-/* Another way would be to store the */
-/* invokeID and file instance in a list or table */
-/* when the request was sent */
+    /* this is one way to match up the invoke ID with */
+    /* the file ID from the AtomicReadFile request. */
+    /* Another way would be to store the */
+    /* invokeID and file instance in a list or table */
+    /* when the request was sent */
     uint32_t bacfile_instance_from_tsm(uint8_t invokeID);
 #endif
 
-/* AtomicReadFile ACK helper */
+    /* handler ACK helper */
     bool bacfile_read_data(BACNET_ATOMIC_READ_FILE_DATA * data);
+    bool bacfile_write_stream_data(BACNET_ATOMIC_WRITE_FILE_DATA * data);
 
 /* handling for read property service */
     int bacfile_encode_property_apdu(uint8_t * apdu,