Fix Prevent issue

- Incorrect usage of TEMP_FAILURE_RETRY

[Issue#]   CID: 22993, 22996, LINUXWRT-906
[Problem]  closedir() repeated if EINTR occurrs
[Cause]    Same as Prevent CID: 22995
           https://review.tizendev.org/gerrit/#/c/83449/

  * For POSIX closedir() specifies two possible errno values: EBADF, EINTR
    (see closedir(3p)).
  * For Linux, on the other hand, only one errno value is specified: EBADF
    (see closedir(3)).
  * In fact, closedir() implementation in GNU C Library may set other errno
    values as well, e.g. EINVAL if value NULL is passed to the function
    (verified for glibc 2.15, source file sysdeps/unix/closedir.c).

  * Assuming that closedir() is just a wrapper around a call to close()
    system call and having in mind that it was decided (and confirmed by
    Linus Torvalds) that repeating close() even for EINTR is unsafe which I have
    decided to not repeat closedir() in such case as well.

  * What's more, implementation of closedir() in GNU C Library calls free()
    on the stream handle, so repeating closedir() may lead to memory
    corruption (as reported by Prevent).

[Solution] Do not repeat closedir() on error (even EINTR).

[SCMRequest] N/A
[Verification] Build repository.

Change-Id: I857861d1f10954d4c199bf8d54fc5ea13cb00d44

diff --git a/src/jobs/widget_install/task_manifest_file.cpp b/src/jobs/widget_install/task_manifest_file.cpp
index abd3d02..d89b7a2 100644 (file)
--- a/src/jobs/widget_install/task_manifest_file.cpp
+++ b/src/jobs/widget_install/task_manifest_file.cpp
@@ -595,7 +595,7 @@ void TaskManifestFile::getFileList(const char* path,
         _E("readdir_r() failed with %s", DPL::GetErrnoString().c_str());
     }
 
-    if (-1 == TEMP_FAILURE_RETRY(closedir(dir))) {
+    if (-1 == closedir(dir)) {
         _E("Failed to close dir: %s with error: %s", path, DPL::GetErrnoString().c_str());
     }
 }

diff --git a/src/jobs/widget_install/task_widget_config.cpp b/src/jobs/widget_install/task_widget_config.cpp
index 4f5785e..b01067e 100755 (executable)
--- a/src/jobs/widget_install/task_widget_config.cpp
+++ b/src/jobs/widget_install/task_widget_config.cpp
@@ -154,7 +154,7 @@ void TaskWidgetConfig::ReadLocaleFolders()
         _E("readdir_r() failed with %s", DPL::GetErrnoString().c_str());
     }
 
-    if (-1 == TEMP_FAILURE_RETRY(closedir(localeDir))) {
+    if (-1 == closedir(localeDir)) {
         _E("Failed to close dir: %s with error: %s", localePath.c_str(), DPL::GetErrnoString().c_str());
     }
 }