lrand48() mrand48() nftw() nl_langinfo() ptsname() putc_unlocked() putchar_unlocked() putenv() pututxline() rand() readdir() setenv ... rwlock_timedwrlock() pthread_rwlock_wrlock()…ftrylockfile () funlockfile () getc_unlocked () getchar_unlocked () putc_unlocked () putchar_unlocked () rand_r () strerror_r () strtok