diff options
Diffstat (limited to '')
-rw-r--r-- | updater/install.cpp | 72 |
1 files changed, 52 insertions, 20 deletions
diff --git a/updater/install.cpp b/updater/install.cpp index b885f864e..6c110732a 100644 --- a/updater/install.cpp +++ b/updater/install.cpp @@ -39,11 +39,12 @@ #include <string> #include <vector> -#include <android-base/parseint.h> +#include <android-base/file.h> #include <android-base/parsedouble.h> +#include <android-base/parseint.h> #include <android-base/properties.h> -#include <android-base/strings.h> #include <android-base/stringprintf.h> +#include <android-base/strings.h> #include <cutils/android_reboot.h> #include <ext4_utils/make_ext4fs.h> #include <ext4_utils/wipe.h> @@ -453,28 +454,32 @@ Value* SetProgressFn(const char* name, State* state, int argc, Expr* argv[]) { return StringValue(frac_str); } -// package_extract_dir(package_path, destination_path) -Value* PackageExtractDirFn(const char* name, State* state, - int argc, Expr* argv[]) { - if (argc != 2) { - return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc); - } +// package_extract_dir(package_dir, dest_dir) +// Extracts all files from the package underneath package_dir and writes them to the +// corresponding tree beneath dest_dir. Any existing files are overwritten. +// Example: package_extract_dir("system", "/system") +// +// Note: package_dir needs to be a relative path; dest_dir needs to be an absolute path. +Value* PackageExtractDirFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 2) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc); + } - std::vector<std::string> args; - if (!ReadArgs(state, 2, argv, &args)) { - return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); - } - const std::string& zip_path = args[0]; - const std::string& dest_path = args[1]; + std::vector<std::string> args; + if (!ReadArgs(state, 2, argv, &args)) { + return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name); + } + const std::string& zip_path = args[0]; + const std::string& dest_path = args[1]; - ZipArchiveHandle za = ((UpdaterInfo*)(state->cookie))->package_zip; + ZipArchiveHandle za = static_cast<UpdaterInfo*>(state->cookie)->package_zip; - // To create a consistent system image, never use the clock for timestamps. - struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default + // To create a consistent system image, never use the clock for timestamps. + constexpr struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default - bool success = ExtractPackageRecursive(za, zip_path, dest_path, ×tamp, sehandle); + bool success = ExtractPackageRecursive(za, zip_path, dest_path, ×tamp, sehandle); - return StringValue(success ? "t" : ""); + return StringValue(success ? "t" : ""); } // package_extract_file(package_file[, dest_file]) @@ -861,7 +866,6 @@ Value* GetPropFn(const char* name, State* state, int argc, Expr* argv[]) { return StringValue(value); } - // file_getprop(file, key) // // interprets 'file' as a getprop-style file (key=value pairs, one @@ -1155,6 +1159,33 @@ Value* ReadFileFn(const char* name, State* state, int argc, Expr* argv[]) { return v; } +// write_value(value, filename) +// Writes 'value' to 'filename'. +// Example: write_value("960000", "/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq") +Value* WriteValueFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 2) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc); + } + + std::vector<std::string> args; + if (!ReadArgs(state, 2, argv, &args)) { + return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name); + } + + const std::string& filename = args[1]; + if (filename.empty()) { + return ErrorAbort(state, kArgsParsingFailure, "%s(): Filename cannot be empty", name); + } + + const std::string& value = args[0]; + if (!android::base::WriteStringToFile(value, filename)) { + printf("%s: Failed to write to \"%s\": %s\n", name, filename.c_str(), strerror(errno)); + return StringValue(""); + } else { + return StringValue("t"); + } +} + // Immediately reboot the device. Recovery is not finished normally, // so if you reboot into recovery it will re-start applying the // current package (because nothing has cleared the copy of the @@ -1363,6 +1394,7 @@ void RegisterInstallFunctions() { RegisterFunction("read_file", ReadFileFn); RegisterFunction("sha1_check", Sha1CheckFn); RegisterFunction("rename", RenameFn); + RegisterFunction("write_value", WriteValueFn); RegisterFunction("wipe_cache", WipeCacheFn); |