| #define _GNU_SOURCE |
| #include <sys/socket.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include "syscall.h" |
| |
| int accept4(int fd, struct sockaddr *restrict addr, socklen_t *restrict len, int flg) |
| { |
| if (!flg) return accept(fd, addr, len); |
| int ret = socketcall_cp(accept4, fd, addr, len, flg, 0, 0); |
| if (ret>=0 || (errno != ENOSYS && errno != EINVAL)) return ret; |
| ret = accept(fd, addr, len); |
| if (ret<0) return ret; |
| if (flg & SOCK_CLOEXEC) |
| __syscall(SYS_fcntl, ret, F_SETFD, FD_CLOEXEC); |
| if (flg & SOCK_NONBLOCK) |
| __syscall(SYS_fcntl, ret, F_SETFL, O_NONBLOCK); |
| return ret; |
| } |