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-rw-r--r--tpm-util/duplicate/util.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/tpm-util/duplicate/util.c b/tpm-util/duplicate/util.c
new file mode 100644
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+++ b/tpm-util/duplicate/util.c
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+/*
+ * Copyright 2018 Intel Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Author: Arun Kumar Sekar
+
+#include "util.h"
+
+TPM_RC ConcatSizedByteBuffer( TPM2B_MAX_BUFFER *result, TPM2B *addBuffer )
+{
+ int i;
+
+ if( ( result->t.size + addBuffer->size ) > MAX_DIGEST_BUFFER )
+ return TSS2_SYS_RC_BAD_VALUE;
+ else
+ {
+ for( i = 0; i < addBuffer->size; i++ )
+ result->t.buffer[i + result->t.size] = addBuffer->buffer[i];
+
+ result->t.size += addBuffer->size;
+
+ return TPM_RC_SUCCESS;
+ }
+}
+
+int saveDataToFile(const char *fileName, UINT8 *buf, UINT16 size)
+{
+ FILE *f;
+ UINT16 count = 1;
+ if( fileName == NULL || buf == NULL || size == 0 )
+ return -1;
+
+ f = fopen(fileName, "wb+");
+ if( f == NULL ) {
+ printf("File(%s) open error.\n", fileName);
+ return -2;
+ }
+
+ while( size > 0 && count > 0 ) {
+ count = fwrite(buf, 1, size, f);
+ size -= count;
+ buf += count;
+ }
+
+ if( size > 0 ) {
+ printf("File write error\n");
+ fclose(f);
+ return -3;
+ }
+
+ fclose(f);
+ return 0;
+}
+
+int loadDataFromFile(const char *fileName, UINT8 *buf, UINT16 *size)
+{
+ UINT16 count = 1, left;
+ FILE *f;
+ if ( size == NULL || buf == NULL || fileName == NULL )
+ return -1;
+
+ f = fopen(fileName, "rb+");
+ if( f == NULL ) {
+ printf("File(%s) open error.\n", fileName);
+ return -2;
+ }
+
+ left = *size;
+ *size = 0;
+ while( left > 0 && count > 0 ) {
+ count = fread(buf, 1, left, f);
+ *size += count;
+ left -= count;
+ buf += count;
+ }
+
+ if( *size == 0 ) {
+ printf("File read error\n");
+ fclose(f);
+ return -3;
+ }
+ fclose(f);
+ return 0;
+}
+
+