accept4: don't fall back to accept if we got unknown flags
[musl] / src / conf /
drwxr-xr-x   ..
-rw-r--r-- 448 confstr.c
-rw-r--r-- 855 fpathconf.c
-rw-r--r-- 298 legacy.c
-rw-r--r-- 96 pathconf.c
-rw-r--r-- 6767 sysconf.c