CursorWindow.cpp: replace dup() with fcntl(F_DUPFD_CLOEXEC)
Replace calls to dup() with fcntl(F_DUPFD_CLOEXEC). The only difference
between the two is that O_CLOEXEC is set on the newly duped file
descriptor. This helps address file descriptor leaks crossing an exec()
boundary.
Test: compiles and boots
Bug: 120983106
Change-Id: Icc2ff2f7f398905aa8283c8797898114d34a9829
diff --git a/libs/androidfw/CursorWindow.cpp b/libs/androidfw/CursorWindow.cpp
index 5694115..a99e77f 100644
--- a/libs/androidfw/CursorWindow.cpp
+++ b/libs/androidfw/CursorWindow.cpp
@@ -94,7 +94,7 @@
if (size < 0) {
result = UNKNOWN_ERROR;
} else {
- int dupAshmemFd = ::dup(ashmemFd);
+ int dupAshmemFd = ::fcntl(ashmemFd, F_DUPFD_CLOEXEC, 0);
if (dupAshmemFd < 0) {
result = -errno;
} else {