1 #include <sys/socket.h> 2 #include "syscall.h" 3 getsockopt(int fd,int level,int optname,void * restrict optval,socklen_t * restrict optlen)4int getsockopt(int fd, int level, int optname, void *restrict optval, socklen_t *restrict optlen) 5 { 6 return socketcall(getsockopt, fd, level, optname, optval, optlen, 0); 7 } 8