SYS_EXIT = 1
SYS_READ = 3
SYS_WRITE = 4
SYS_OPEN = 5
SYS_CLOSE = 6
SYS_LSEEK = 19
SEEK_SET = 0
SEEK_CUR = 1
SEEK_END = 2
O_RDONLY = 0
O_LARGEFILE = 0x8000
STDIN = 0
STDOUT = 1
STDERR = 2
ENOENT = 2