1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <stdarg.h>
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <sys/stat.h>
34 #include <sys/time.h>
35
36 #include <android-base/parseint.h>
37 #include <android-base/strings.h>
38
39 #include "util.h"
40
41 using android::base::borrowed_fd;
42
43 static bool g_verbose = false;
44
now()45 double now() {
46 struct timeval tv;
47 gettimeofday(&tv, NULL);
48 return (double)tv.tv_sec + (double)tv.tv_usec / 1000000;
49 }
50
die(const char * fmt,...)51 void die(const char* fmt, ...) {
52 va_list ap;
53 va_start(ap, fmt);
54 fprintf(stderr, "fastboot: error: ");
55 vfprintf(stderr, fmt, ap);
56 fprintf(stderr, "\n");
57 va_end(ap);
58 exit(EXIT_FAILURE);
59 }
60
die(const std::string & str)61 void die(const std::string& str) {
62 die("%s", str.c_str());
63 }
64
set_verbose()65 void set_verbose() {
66 g_verbose = true;
67 }
68
verbose(const char * fmt,...)69 void verbose(const char* fmt, ...) {
70 if (!g_verbose) return;
71
72 if (*fmt != '\n') {
73 va_list ap;
74 va_start(ap, fmt);
75 fprintf(stderr, "fastboot: verbose: ");
76 vfprintf(stderr, fmt, ap);
77 va_end(ap);
78 }
79 fprintf(stderr, "\n");
80 }
81
should_flash_in_userspace(const android::fs_mgr::LpMetadata & metadata,const std::string & partition_name)82 bool should_flash_in_userspace(const android::fs_mgr::LpMetadata& metadata,
83 const std::string& partition_name) {
84 for (const auto& partition : metadata.partitions) {
85 auto candidate = android::fs_mgr::GetPartitionName(partition);
86 if (partition.attributes & LP_PARTITION_ATTR_SLOT_SUFFIXED) {
87 // On retrofit devices, we don't know if, or whether, the A or B
88 // slot has been flashed for dynamic partitions. Instead we add
89 // both names to the list as a conservative guess.
90 if (candidate + "_a" == partition_name || candidate + "_b" == partition_name) {
91 return true;
92 }
93 } else if (candidate == partition_name) {
94 return true;
95 }
96 }
97 return false;
98 }
99
is_sparse_file(borrowed_fd fd)100 bool is_sparse_file(borrowed_fd fd) {
101 SparsePtr s(sparse_file_import(fd.get(), false, false), sparse_file_destroy);
102 return !!s;
103 }
104
get_file_size(borrowed_fd fd)105 int64_t get_file_size(borrowed_fd fd) {
106 struct stat sb;
107 if (fstat(fd.get(), &sb) == -1) {
108 die("could not get file size");
109 }
110 return sb.st_size;
111 }
112
fb_fix_numeric_var(std::string var)113 std::string fb_fix_numeric_var(std::string var) {
114 // Some bootloaders (angler, for example), send spurious leading whitespace.
115 var = android::base::Trim(var);
116 // Some bootloaders (hammerhead, for example) use implicit hex.
117 // This code used to use strtol with base 16.
118 if (!android::base::StartsWith(var, "0x")) var = "0x" + var;
119 return var;
120 }
121