74c7807af1
sparse_file_len is not actually infallible; on Windows it's pretty easy to make it fail by embedding large files in the stream. fastboot didn't handle this anywhere, leading to bad sparse images when libsparse runs out of address space. Bug: 273933042 Bug: 268872725 Test: fastboot flashall on Windows Change-Id: Ie68aed2f1970e820350d9f97aa89a6c0242229b8
120 lines
3.8 KiB
C++
120 lines
3.8 KiB
C++
/*
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* Copyright (C) 2013 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stdarg.h>
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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 <sys/stat.h>
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#include <sys/time.h>
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#include <android-base/parseint.h>
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#include <android-base/strings.h>
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#include "util.h"
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using android::base::borrowed_fd;
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static bool g_verbose = false;
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double now() {
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return (double)tv.tv_sec + (double)tv.tv_usec / 1000000;
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}
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void die(const char* fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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fprintf(stderr, "fastboot: error: ");
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, "\n");
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va_end(ap);
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exit(EXIT_FAILURE);
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}
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void die(const std::string& str) {
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die("%s", str.c_str());
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}
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void set_verbose() {
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g_verbose = true;
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}
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void verbose(const char* fmt, ...) {
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if (!g_verbose) return;
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if (*fmt != '\n') {
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va_list ap;
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va_start(ap, fmt);
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fprintf(stderr, "fastboot: verbose: ");
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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}
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fprintf(stderr, "\n");
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}
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bool should_flash_in_userspace(const android::fs_mgr::LpMetadata& metadata,
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const std::string& partition_name) {
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for (const auto& partition : metadata.partitions) {
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auto candidate = android::fs_mgr::GetPartitionName(partition);
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if (partition.attributes & LP_PARTITION_ATTR_SLOT_SUFFIXED) {
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// On retrofit devices, we don't know if, or whether, the A or B
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// slot has been flashed for dynamic partitions. Instead we add
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// both names to the list as a conservative guess.
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if (candidate + "_a" == partition_name || candidate + "_b" == partition_name) {
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return true;
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}
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} else if (candidate == partition_name) {
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return true;
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}
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}
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return false;
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}
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bool is_sparse_file(borrowed_fd fd) {
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SparsePtr s(sparse_file_import(fd.get(), false, false), sparse_file_destroy);
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return !!s;
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}
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int64_t get_file_size(borrowed_fd fd) {
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struct stat sb;
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if (fstat(fd.get(), &sb) == -1) {
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die("could not get file size");
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}
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return sb.st_size;
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}
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std::string fb_fix_numeric_var(std::string var) {
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// Some bootloaders (angler, for example), send spurious leading whitespace.
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var = android::base::Trim(var);
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// Some bootloaders (hammerhead, for example) use implicit hex.
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// This code used to use strtol with base 16.
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if (!android::base::StartsWith(var, "0x")) var = "0x" + var;
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return var;
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}
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