| /* Copyright (c) 2015 Google, Inc. |
| * Barret Rhoden <brho@cs.berkeley.edu> |
| * See LICENSE for details. */ |
| |
| #include <errno.h> |
| #include <sys/socket.h> |
| |
| #include <sys/plan9_helpers.h> |
| |
| static int sol_socket_gso(Rock *r, int optname, void *optval, socklen_t *optlen) |
| { |
| switch (optname) { |
| case (SO_TYPE): |
| if (*optlen < 4) { |
| __set_errno(EINVAL); |
| return -1; |
| } |
| *(int*)optval = r->stype; |
| *optlen = 4; |
| break; |
| case (SO_ERROR): |
| *(int*)optval = 0; |
| *optlen = 4; |
| break; |
| default: |
| __set_errno(ENOPROTOOPT); |
| return -1; |
| }; |
| return 0; |
| } |
| |
| int __getsockopt(int sockfd, int level, int optname, void *optval, |
| socklen_t *optlen) |
| { |
| Rock *r = _sock_findrock(sockfd, 0); |
| if (!r) { |
| /* could be EBADF too, we can't tell */ |
| __set_errno(ENOTSOCK); |
| return -1; |
| } |
| switch (level) { |
| case (SOL_SOCKET): |
| return sol_socket_gso(r, optname, optval, optlen); |
| default: |
| __set_errno(ENOPROTOOPT); |
| return -1; |
| }; |
| } |
| weak_alias(__getsockopt, getsockopt) |
