mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-11-24 18:25:10 +00:00
72e344d5cd
This started out as a simple fix for a minor bug and turned into a nearly complete rewrite. Now that it's done I'm not sure it really matters. This version is a lot cleaner about handling command-line args, but isn't otherwise noticeably better. Sigh. BUG=none TEST=manual make make runtests Change-Id: I9c194e9c0e6418488635989ef666bc83c6e39816 Reviewed-on: https://gerrit.chromium.org/gerrit/18268 Commit-Ready: Bill Richardson <wfrichar@chromium.org> Tested-by: Bill Richardson <wfrichar@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org>
127 lines
2.5 KiB
C
127 lines
2.5 KiB
C
/* Copyright (c) 2011 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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/* TODO: change all 'return 0', 'return 1' into meaningful return codes */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "cryptolib.h"
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#include "host_common.h"
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#include "vboot_common.h"
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char* StrCopy(char* dest, const char* src, int dest_size) {
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strncpy(dest, src, dest_size);
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dest[dest_size - 1] = '\0';
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return dest;
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}
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uint8_t* ReadFile(const char* filename, uint64_t* sizeptr) {
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FILE* f;
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uint8_t* buf;
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uint64_t size;
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f = fopen(filename, "rb");
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if (!f) {
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VBDEBUG(("Unable to open file %s\n", filename));
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return NULL;
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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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buf = malloc(size);
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if (!buf) {
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fclose(f);
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return NULL;
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}
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if(1 != fread(buf, size, 1, f)) {
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VBDEBUG(("Unable to read from file %s\n", filename));
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fclose(f);
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free(buf);
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return NULL;
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}
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fclose(f);
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if (sizeptr)
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*sizeptr = size;
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return buf;
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}
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char* ReadFileString(char* dest, int size, const char* filename) {
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char* got;
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FILE* f;
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f = fopen(filename, "rt");
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if (!f)
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return NULL;
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got = fgets(dest, size, f);
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fclose(f);
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return got;
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}
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int ReadFileInt(const char* filename) {
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char buf[64];
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int value;
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char* e = NULL;
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if (!ReadFileString(buf, sizeof(buf), filename))
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return -1;
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/* Convert to integer. Allow characters after the int ("123 blah"). */
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value = strtol(buf, &e, 0);
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if (e == buf)
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return -1; /* No characters consumed, so conversion failed */
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return value;
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}
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int ReadFileBit(const char* filename, int bitmask) {
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int value = ReadFileInt(filename);
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if (value == -1)
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return -1;
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else return (value & bitmask ? 1 : 0);
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}
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int WriteFile(const char* filename, const void *data, uint64_t size) {
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FILE *f = fopen(filename, "wb");
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if (!f) {
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VBDEBUG(("Unable to open file %s\n", filename));
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return 1;
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}
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if (1 != fwrite(data, size, 1, f)) {
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VBDEBUG(("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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}
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fclose(f);
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return 0;
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}
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void PrintPubKeySha1Sum(VbPublicKey* key) {
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uint8_t* buf = ((uint8_t *)key) + key->key_offset;
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uint64_t buflen = key->key_size;
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uint8_t* digest = DigestBuf(buf, buflen, SHA1_DIGEST_ALGORITHM);
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int i;
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for (i=0; i<SHA1_DIGEST_SIZE; i++)
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printf("%02x", digest[i]);
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free(digest);
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}
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