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Merge "fs_mgr: trim the terminating '\0' when reading from device tree"

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am: b76158d56a

Change-Id: I8498667cfdd266827a936a9e9a0bac50dc9699f4
This commit is contained in:
Bowgo Tsai 2017-07-14 05:18:04 +00:00 committed by android-build-merger
commit 3205cd6cc4
1 changed files with 6 additions and 2 deletions
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8
fs_mgr/fs_mgr_boot_config.cpp
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@ -14,6 +14,8 @@
* limitations under the License.
*/
#include <string>
#include <android-base/file.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
@ -51,9 +53,11 @@ bool fs_mgr_get_boot_config(const std::string& key, std::string* out_val) {
// lastly, check the device tree
if (is_dt_compatible()) {
std::string file_name = kAndroidDtDir + "/" + key;
// DT entries terminate with '\0' but so do the properties
if (android::base::ReadFileToString(file_name, out_val)) {
return true;
if (!out_val->empty()) {
out_val->pop_back(); // Trims the trailing '\0' out.
return true;
}
}
}