Changeset 60424 in vbox

Timestamp:

Apr 11, 2016 12:55:57 PM (8 years ago)

Author:

vboxsync

Message:

Runtime/linux/sysfs: RTLinuxSysFsReadStr() has to be return VERR_BUFFER_OVERFLOW like RTLinuxSysFsReadFile()

File:

• trunk/src/VBox/Runtime/r3/linux/sysfs.cpp (modified) (2 diffs)

trunk/src/VBox/Runtime/r3/linux/sysfs.cpp

@@ -234 +234 @@
         && pcchRead)
         *pcchRead = cchRead;
-
+    if (RT_SUCCESS(rc))
+    {
+        /* Check for EOF */
+        uint64_t offCur = 0;
+        uint64_t offEnd = 0;
+        rc = RTFileSeek(hFile, 0, RTFILE_SEEK_CURRENT, &offCur);
+        if (RT_SUCCESS(rc))
+            rc = RTFileSeek(hFile, 0, RTFILE_SEEK_END, &offEnd);
+        if (   RT_SUCCESS(rc)
+            && offEnd > offCur)
+            rc = VERR_BUFFER_OVERFLOW;
+    }
     return rc;
 }
@@ -262 +273 @@
         {
             /* Check for EOF */
-            char     ch;
             uint64_t offCur = 0;
             uint64_t offEnd = 0;