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-rw-r--r--util/broadcom/secimage/io.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/util/broadcom/secimage/io.c b/util/broadcom/secimage/io.c
new file mode 100644
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+++ b/util/broadcom/secimage/io.c
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+/*
+ * Copyright (C) 2015 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include "secimage.h"
+
+/*----------------------------------------------------------------------
+ * Name : ReadBinaryFile
+ * Purpose : Read some data from file of raw binary
+ * Input : fname : file to be read
+ * buf : buffer which is the data desitnation
+ * maxlen : maiximum length of data to be read
+ * Output : none
+ *---------------------------------------------------------------------*/
+int ReadBinaryFile(char *fname, uint8_t *buf, int maxlen)
+{
+ FILE *fp = NULL;
+ int len = 0;
+
+ fp = fopen(fname, "rb");
+ if (fp == NULL)
+ return 0;
+ printf("fname=%s, len=%d\n", fname, maxlen);
+ len = fread(buf, 1, maxlen, fp);
+ fclose(fp);
+
+ return len;
+}
+
+
+/*----------------------------------------------------------------------
+ * Name : FileSizeGet
+ * Purpose : Return the size of the file
+ * Input : file: FILE * to the file to be processed
+ * Output : none
+ *---------------------------------------------------------------------*/
+size_t FileSizeGet(FILE *file)
+{
+ long length;
+
+ fseek(file, 0, SEEK_END);
+ length = ftell(file);
+ rewind(file);
+ return (size_t)length;
+}
+
+
+/*----------------------------------------------------------------------
+ * Name : DataRead
+ * Purpose : Read all the data from a file
+ * Input : filename : file to be read
+ * buf : buffer which is the data destination
+ * length : length of data to be read
+ * Output : none
+ *---------------------------------------------------------------------*/
+int DataRead(char *filename, uint8_t *buf, int *length)
+{
+ FILE *file;
+ int len = *length;
+
+ file = fopen(filename, "rb");
+ if (file == NULL) {
+ printf("Unable to open file: %s\n", filename);
+ return -1;
+ }
+ len = FileSizeGet(file);
+ if (len < *length)
+ *length = len;
+ else
+ /* Do not exceed the maximum length of the buffer */
+ len = *length;
+ if (fread((uint8_t *)buf, 1, len, file) != len) {
+ printf("Error reading data (%d bytes) from file: %s\n",
+ len, filename);
+ return -1;
+ }
+ fclose(file);
+ return 0;
+}
+
+
+/*----------------------------------------------------------------------
+ * Name : DataWrite
+ * Purpose : Write some binary data to a file
+ * Input : filename : file to be written
+ * buf : buffer which is the data source
+ * length : length of data to be written
+ * Output : none
+ *---------------------------------------------------------------------*/
+int DataWrite(char *filename, char *buf, int length)
+{
+ FILE *file;
+
+ file = fopen(filename, "wb");
+ if (file == NULL) {
+ printf("Unable to open output file %s\n", filename);
+ return -1;
+ }
+ if (fwrite(buf, 1, length, file) < length) {
+ printf("Unable to write %d bytes to output file %s (0x%X).\n",
+ length, filename, ferror(file));
+ fclose(file);
+ return -1;
+ }
+
+ fflush(file);
+ fclose(file);
+ return 0;
+}