android-cloexec-accept4¶
accept4() should include SOCK_CLOEXEC in its type argument to avoid the file descriptor leakage. Without this flag, an opened sensitive file would remain open across a fork+exec to a lower-privileged SELinux domain.
Examples:
accept4(sockfd, addr, addrlen, SOCK_NONBLOCK);
// becomes
accept4(sockfd, addr, addrlen, SOCK_NONBLOCK | SOCK_CLOEXEC);