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-rw-r--r--recovery.cpp110
1 files changed, 53 insertions, 57 deletions
diff --git a/recovery.cpp b/recovery.cpp
index bb7a15b6c..02d460eb9 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -70,8 +70,6 @@
#include "screen_ui.h"
#include "ui.h"
-struct selabel_handle *sehandle;
-
static const struct option OPTIONS[] = {
{ "update_package", required_argument, NULL, 'u' },
{ "retry_count", required_argument, NULL, 'n' },
@@ -119,15 +117,18 @@ static const int BATTERY_READ_TIMEOUT_IN_SEC = 10;
// So we should check battery with a slightly lower limitation.
static const int BATTERY_OK_PERCENTAGE = 20;
static const int BATTERY_WITH_CHARGER_OK_PERCENTAGE = 15;
-constexpr const char* RECOVERY_WIPE = "/etc/recovery.wipe";
+static constexpr const char* RECOVERY_WIPE = "/etc/recovery.wipe";
+static constexpr const char* DEFAULT_LOCALE = "en_US";
-RecoveryUI* ui = NULL;
-static const char* locale = "en_US";
-char* stage = NULL;
-char* reason = NULL;
-bool modified_flash = false;
+static std::string locale;
static bool has_cache = false;
+RecoveryUI* ui = nullptr;
+bool modified_flash = false;
+const char* stage = nullptr;
+const char* reason = nullptr;
+struct selabel_handle* sehandle;
+
/*
* The recovery tool communicates with the main system through /cache files.
* /cache/recovery/command - INPUT - command line for tool, one arg per line
@@ -206,6 +207,9 @@ FILE* fopen_path(const char *path, const char *mode) {
// close a file, log an error if the error indicator is set
static void check_and_fclose(FILE *fp, const char *name) {
fflush(fp);
+ if (fsync(fileno(fp)) == -1) {
+ PLOG(ERROR) << "Failed to fsync " << name;
+ }
if (ferror(fp)) {
PLOG(ERROR) << "Error in " << name;
}
@@ -486,24 +490,18 @@ static void copy_logs() {
// clear the recovery command and prepare to boot a (hopefully working) system,
// copy our log file to cache as well (for the system to read). This function is
// idempotent: call it as many times as you like.
-static void
-finish_recovery() {
+static void finish_recovery() {
// Save the locale to cache, so if recovery is next started up
// without a --locale argument (eg, directly from the bootloader)
// it will use the last-known locale.
- if (locale != NULL) {
- size_t len = strlen(locale);
- __pmsg_write(LOCALE_FILE, locale, len);
- if (has_cache) {
- LOG(INFO) << "Saving locale \"" << locale << "\"";
- FILE* fp = fopen_path(LOCALE_FILE, "w");
- if (fp != NULL) {
- fwrite(locale, 1, len, fp);
- fflush(fp);
- fsync(fileno(fp));
- check_and_fclose(fp, LOCALE_FILE);
- }
+ if (!locale.empty() && has_cache) {
+ LOG(INFO) << "Saving locale \"" << locale << "\"";
+
+ FILE* fp = fopen_path(LOCALE_FILE, "w");
+ if (!android::base::WriteStringToFd(locale, fileno(fp))) {
+ PLOG(ERROR) << "Failed to save locale to " << LOCALE_FILE;
}
+ check_and_fclose(fp, LOCALE_FILE);
}
copy_logs();
@@ -1253,40 +1251,32 @@ print_property(const char *key, const char *name, void *cookie) {
printf("%s=%s\n", key, name);
}
-static void
-load_locale_from_cache() {
- FILE* fp = fopen_path(LOCALE_FILE, "r");
- char buffer[80];
- if (fp != NULL) {
- fgets(buffer, sizeof(buffer), fp);
- int j = 0;
- unsigned int i;
- for (i = 0; i < sizeof(buffer) && buffer[i]; ++i) {
- if (!isspace(buffer[i])) {
- buffer[j++] = buffer[i];
- }
- }
- buffer[j] = 0;
- locale = strdup(buffer);
- check_and_fclose(fp, LOCALE_FILE);
+static std::string load_locale_from_cache() {
+ if (ensure_path_mounted(LOCALE_FILE) != 0) {
+ LOG(ERROR) << "Can't mount " << LOCALE_FILE;
+ return "";
}
-}
-static RecoveryUI* gCurrentUI = NULL;
+ std::string content;
+ if (!android::base::ReadFileToString(LOCALE_FILE, &content)) {
+ PLOG(ERROR) << "Can't read " << LOCALE_FILE;
+ return "";
+ }
-void
-ui_print(const char* format, ...) {
- char buffer[256];
+ return android::base::Trim(content);
+}
+void ui_print(const char* format, ...) {
+ std::string buffer;
va_list ap;
va_start(ap, format);
- vsnprintf(buffer, sizeof(buffer), format, ap);
+ android::base::StringAppendV(&buffer, format, ap);
va_end(ap);
- if (gCurrentUI != NULL) {
- gCurrentUI->Print("%s", buffer);
+ if (ui != nullptr) {
+ ui->Print("%s", buffer.c_str());
} else {
- fputs(buffer, stdout);
+ fputs(buffer.c_str(), stdout);
}
}
@@ -1295,8 +1285,8 @@ static constexpr char log_characters[] = "VDIWEF";
void UiLogger(android::base::LogId id, android::base::LogSeverity severity,
const char* tag, const char* file, unsigned int line,
const char* message) {
- if (severity >= android::base::ERROR && gCurrentUI != NULL) {
- gCurrentUI->Print("E:%s\n", message);
+ if (severity >= android::base::ERROR && ui != nullptr) {
+ ui->Print("E:%s\n", message);
} else {
fprintf(stdout, "%c:%s\n", log_characters[severity], message);
}
@@ -1392,7 +1382,7 @@ static void log_failure_code(ErrorCode code, const char *update_package) {
};
std::string log_content = android::base::Join(log_buffer, "\n");
if (!android::base::WriteStringToFile(log_content, TEMPORARY_INSTALL_FILE)) {
- PLOG(ERROR) << "failed to write " << TEMPORARY_INSTALL_FILE;
+ PLOG(ERROR) << "failed to write " << TEMPORARY_INSTALL_FILE;
}
// Also write the info into last_log.
@@ -1495,18 +1485,24 @@ int main(int argc, char **argv) {
}
}
- if (locale == nullptr && has_cache) {
- load_locale_from_cache();
+ if (locale.empty()) {
+ if (has_cache) {
+ locale = load_locale_from_cache();
+ }
+
+ if (locale.empty()) {
+ locale = DEFAULT_LOCALE;
+ }
}
- printf("locale is [%s]\n", locale);
+
+ printf("locale is [%s]\n", locale.c_str());
printf("stage is [%s]\n", stage);
printf("reason is [%s]\n", reason);
Device* device = make_device();
ui = device->GetUI();
- gCurrentUI = ui;
- ui->SetLocale(locale);
+ ui->SetLocale(locale.c_str());
ui->Init();
// Set background string to "installing security update" for security update,
// otherwise set it to "installing system update".
@@ -1521,7 +1517,7 @@ int main(int argc, char **argv) {
if (show_text) ui->ShowText(true);
struct selinux_opt seopts[] = {
- { SELABEL_OPT_PATH, "/file_contexts" }
+ { SELABEL_OPT_PATH, "/file_contexts" }
};
sehandle = selabel_open(SELABEL_CTX_FILE, seopts, 1);
@@ -1693,7 +1689,7 @@ int main(int argc, char **argv) {
break;
}
while (true) {
- pause();
+ pause();
}
// Should be unreachable.
return EXIT_SUCCESS;
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 18:03:39 +0100