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add wasip2 implementations of more socket APIs
This adds `wasm32-wasip2` implementations of `shutdown`, `getsockopt`, and `setsockopt`. It also extends the existing `ioctl` implementation to handle both p1 and p2 file descriptors since we can't know until runtime which kind we have. Co-authored-by: Dave Bakker <[email protected]> Signed-off-by: Joel Dice <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| #include <sys/socket.h> | ||
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| #include <errno.h> | ||
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| #include <wasi/api.h> | ||
| #include <wasi/descriptor_table.h> | ||
| #include <wasi/sockets_utils.h> | ||
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| int tcp_shutdown(tcp_socket_t *socket, int posix_how) | ||
| { | ||
| tcp_shutdown_type_t wasi_how; | ||
| switch (posix_how) { | ||
| case SHUT_RD: | ||
| wasi_how = TCP_SHUTDOWN_TYPE_RECEIVE; | ||
| break; | ||
| case SHUT_WR: | ||
| wasi_how = TCP_SHUTDOWN_TYPE_SEND; | ||
| break; | ||
| case SHUT_RDWR: | ||
| wasi_how = TCP_SHUTDOWN_TYPE_BOTH; | ||
| break; | ||
| default: | ||
| errno = EINVAL; | ||
| return -1; | ||
| } | ||
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| tcp_socket_state_connected_t connection; | ||
| if (socket->state.tag == TCP_SOCKET_STATE_CONNECTED) { | ||
| connection = socket->state.connected; | ||
| } else { | ||
| errno = ENOTCONN; | ||
| return -1; | ||
| } | ||
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| network_error_code_t error; | ||
| tcp_borrow_tcp_socket_t socket_borrow = | ||
| tcp_borrow_tcp_socket(socket->socket); | ||
| if (!tcp_method_tcp_socket_shutdown(socket_borrow, wasi_how, &error)) { | ||
| errno = __wasi_sockets_utils__map_error(error); | ||
| return -1; | ||
| } | ||
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| if (posix_how == SHUT_RD || posix_how == SHUT_RDWR) { | ||
| // TODO wasi-sockets: drop input stream (if not already). And | ||
| // update `recv` to take dropped input streams into account. | ||
| } | ||
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| if (posix_how == SHUT_WR || posix_how == SHUT_RDWR) { | ||
| // TODO wasi-sockets: drop output stream (if not already). And | ||
| // update `send` to take dropped output streams into account. | ||
| } | ||
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| return 0; | ||
| } | ||
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| int udp_shutdown(udp_socket_t *socket, int posix_how) | ||
| { | ||
| // UDP has nothing to shut down. | ||
| errno = EOPNOTSUPP; | ||
| return -1; | ||
| } | ||
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| int shutdown(int socket, int how) | ||
| { | ||
| descriptor_table_entry_t *entry; | ||
| if (!descriptor_table_get_ref(socket, &entry)) { | ||
| errno = EBADF; | ||
| return -1; | ||
| } | ||
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| switch (entry->tag) { | ||
| case DESCRIPTOR_TABLE_ENTRY_TCP_SOCKET: | ||
| return tcp_shutdown(&entry->tcp_socket, how); | ||
| case DESCRIPTOR_TABLE_ENTRY_UDP_SOCKET: | ||
| return udp_shutdown(&entry->udp_socket, how); | ||
| default: | ||
| errno = EOPNOTSUPP; | ||
| return -1; | ||
| } | ||
| } |
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