_IONBF             41 usr/lib/libc/stdio/setbuf.c 	(void) setvbuf(fp, buf, buf ? _IOFBF : _IONBF, BUFSIZ);
_IONBF             42 usr/lib/libc/stdio/setbuffer.c 	(void)setvbuf(fp, buf, buf ? _IOFBF : _IONBF, size);
_IONBF             56 usr/lib/libc/stdio/setvbuf.c 	if (mode != _IONBF)