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fb9a216dd6
And use them in the other vboot2 unit tests. BUG=chromium:423882 BRANCH=none TEST=VBOOT2=1 make runtests Change-Id: I0c3590649a0acf792e41e295ca4279ccba17a41f Reviewed-on: https://chromium-review.googlesource.com/231345 Tested-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Bill Richardson <wfrichar@chromium.org> Commit-Queue: Randall Spangler <rspangler@chromium.org>
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Host functions for verified boot.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include "2sysincludes.h"
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#include "2common.h"
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#include "2sha.h"
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#include "host_common.h"
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int vb2_read_file(const char *filename, uint8_t **data_ptr, uint32_t *size_ptr)
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{
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FILE *f;
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uint8_t *buf;
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long size;
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*data_ptr = NULL;
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*size_ptr = 0;
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f = fopen(filename, "rb");
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if (!f) {
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VB2_DEBUG("Unable to open file %s\n", filename);
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return VB2_ERROR_READ_FILE_OPEN;
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}
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fseek(f, 0, SEEK_END);
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size = ftell(f);
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rewind(f);
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if (size < 0 || size > UINT32_MAX) {
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fclose(f);
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return VB2_ERROR_READ_FILE_SIZE;
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}
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buf = malloc(size);
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if (!buf) {
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fclose(f);
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return VB2_ERROR_READ_FILE_ALLOC;
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}
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if(1 != fread(buf, size, 1, f)) {
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VB2_DEBUG("Unable to read file %s\n", filename);
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fclose(f);
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free(buf);
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return VB2_ERROR_READ_FILE_DATA;
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}
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fclose(f);
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*data_ptr = buf;
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*size_ptr = size;
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return VB2_SUCCESS;
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}
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int vb2_write_file(const char *filename, const void *buf, uint32_t size)
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{
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FILE *f = fopen(filename, "wb");
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if (!f) {
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VB2_DEBUG("Unable to open file %s\n", filename);
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return VB2_ERROR_WRITE_FILE_OPEN;
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}
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if (1 != fwrite(buf, size, 1, f)) {
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VB2_DEBUG("Unable to write to file %s\n", filename);
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fclose(f);
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unlink(filename); /* Delete any partial file */
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return VB2_ERROR_WRITE_FILE_DATA;
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}
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fclose(f);
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return VB2_SUCCESS;
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}
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int vb2_write_object(const char *filename, const void *buf)
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{
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const struct vb2_struct_common *cptr = buf;
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return vb2_write_file(filename, buf, cptr->total_size);
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}
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