_IOFBF            549 src/filemanager/ext.c         if (setvbuf (f, NULL, _IOFBF, 0) != 0)
_IOFBF           1779 src/vfs/smbfs/helpers/lib/util.c     setvbuf (f, buf, _IOFBF, bufsize);
_IOFBF            147 src/vfs/smbfs/helpers/lib/util_file.c     setvbuf (fp, s_readbuf, _IOFBF, bufsize);