FILEARGS_MAGIC
fa->fa_magic = FILEARGS_MAGIC;
assert(fa->fa_magic == FILEARGS_MAGIC);
assert(fa->fa_magic == FILEARGS_MAGIC);
assert(fa->fa_magic == FILEARGS_MAGIC);
assert(fa->fa_magic == FILEARGS_MAGIC);
assert(fa->fa_magic == FILEARGS_MAGIC);
assert(fa->fa_magic == FILEARGS_MAGIC);
assert(fa->fa_magic == FILEARGS_MAGIC);