9dd8f88841
Change-Id: Ibfa8b6b60b2b39212cef27bb2a5f8849218164bb Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/11133 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
/*
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* Copyright (C) 2015 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <stdio.h>
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#include <string.h>
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#include "secimage.h"
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/*----------------------------------------------------------------------
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* Name : ReadBinaryFile
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* Purpose : Read some data from file of raw binary
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* Input : fname : file to be read
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* buf : buffer which is the data desitnation
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* maxlen : maiximum length of data to be read
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* Output : none
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*---------------------------------------------------------------------*/
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int ReadBinaryFile(char *fname, uint8_t *buf, int maxlen)
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{
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FILE *fp = NULL;
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int len = 0;
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fp = fopen(fname, "rb");
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if (fp == NULL)
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return 0;
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printf("fname=%s, len=%d\n", fname, maxlen);
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len = fread(buf, 1, maxlen, fp);
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fclose(fp);
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return len;
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}
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/*----------------------------------------------------------------------
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* Name : FileSizeGet
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* Purpose : Return the size of the file
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* Input : file: FILE * to the file to be processed
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* Output : none
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*---------------------------------------------------------------------*/
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size_t FileSizeGet(FILE *file)
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{
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long length;
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fseek(file, 0, SEEK_END);
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length = ftell(file);
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rewind(file);
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return (size_t)length;
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}
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/*----------------------------------------------------------------------
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* Name : DataRead
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* Purpose : Read all the data from a file
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* Input : filename : file to be read
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* buf : buffer which is the data destination
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* length : length of data to be read
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* Output : none
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*---------------------------------------------------------------------*/
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int DataRead(char *filename, uint8_t *buf, int *length)
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{
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FILE *file;
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int len = *length;
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file = fopen(filename, "rb");
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if (file == NULL) {
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printf("Unable to open file: %s\n", filename);
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return -1;
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}
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len = FileSizeGet(file);
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if (len < *length)
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*length = len;
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else
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/* Do not exceed the maximum length of the buffer */
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len = *length;
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if (fread((uint8_t *)buf, 1, len, file) != len) {
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printf("Error reading data (%d bytes) from file: %s\n",
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len, filename);
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return -1;
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}
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fclose(file);
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return 0;
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}
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/*----------------------------------------------------------------------
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* Name : DataWrite
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* Purpose : Write some binary data to a file
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* Input : filename : file to be written
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* buf : buffer which is the data source
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* length : length of data to be written
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* Output : none
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*---------------------------------------------------------------------*/
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int DataWrite(char *filename, char *buf, int length)
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{
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FILE *file;
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file = fopen(filename, "wb");
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if (file == NULL) {
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printf("Unable to open output file %s\n", filename);
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return -1;
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}
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if (fwrite(buf, 1, length, file) < length) {
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printf("Unable to write %d bytes to output file %s (0x%X).\n",
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length, filename, ferror(file));
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fclose(file);
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return -1;
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}
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fflush(file);
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fclose(file);
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return 0;
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}
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