| /* |
| * Copyright (c) 2001-2003 Swedish Institute of Computer Science. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| * OF SUCH DAMAGE. |
| * |
| * This file is part of the lwIP TCP/IP stack. |
| * |
| * Author: Adam Dunkels <adam@sics.se> |
| * |
| * Improved by Marc Boucher <marc@mbsi.ca> and David Haas <dhaas@alum.rpi.edu> |
| * |
| */ |
| |
| #include "lwip/opt.h" |
| #include "lwip/api.h" |
| #include "lwip/arch.h" |
| #include "lwip/sys.h" |
| |
| #include "lwip/sockets.h" |
| |
| #define NUM_SOCKETS MEMP_NUM_NETCONN |
| |
| struct lwip_socket { |
| struct netconn *conn; |
| struct netbuf *lastdata; |
| u16_t lastoffset; |
| u16_t rcvevent; |
| u16_t sendevent; |
| u16_t flags; |
| int err; |
| }; |
| |
| struct lwip_select_cb |
| { |
| struct lwip_select_cb *next; |
| fd_set *readset; |
| fd_set *writeset; |
| fd_set *exceptset; |
| int sem_signalled; |
| sys_sem_t sem; |
| }; |
| |
| static struct lwip_socket sockets[NUM_SOCKETS]; |
| static struct lwip_select_cb *select_cb_list = 0; |
| |
| static sys_sem_t socksem = 0; |
| static sys_sem_t selectsem = 0; |
| |
| static void |
| event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len); |
| |
| static int err_to_errno_table[11] = { |
| 0, /* ERR_OK 0 No error, everything OK. */ |
| ENOMEM, /* ERR_MEM -1 Out of memory error. */ |
| ENOBUFS, /* ERR_BUF -2 Buffer error. */ |
| ECONNABORTED, /* ERR_ABRT -3 Connection aborted. */ |
| ECONNRESET, /* ERR_RST -4 Connection reset. */ |
| ESHUTDOWN, /* ERR_CLSD -5 Connection closed. */ |
| ENOTCONN, /* ERR_CONN -6 Not connected. */ |
| EINVAL, /* ERR_VAL -7 Illegal value. */ |
| EIO, /* ERR_ARG -8 Illegal argument. */ |
| EHOSTUNREACH, /* ERR_RTE -9 Routing problem. */ |
| EADDRINUSE /* ERR_USE -10 Address in use. */ |
| }; |
| |
| #define err_to_errno(err) \ |
| ((err) < (sizeof(err_to_errno_table)/sizeof(int))) ? \ |
| err_to_errno_table[-(err)] : EIO |
| |
| #ifdef ERRNO |
| #define set_errno(err) errno = (err) |
| #else |
| #define set_errno(err) |
| #endif |
| |
| #define sock_set_errno(sk, e) do { \ |
| sk->err = (e); \ |
| set_errno(sk->err); \ |
| } while (0) |
| |
| |
| static struct lwip_socket * |
| get_socket(int s) |
| { |
| struct lwip_socket *sock; |
| |
| if ((s < 0) || (s > NUM_SOCKETS)) { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", s)); |
| set_errno(EBADF); |
| return NULL; |
| } |
| |
| sock = &sockets[s]; |
| |
| if (!sock->conn) { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): not active\n", s)); |
| set_errno(EBADF); |
| return NULL; |
| } |
| |
| return sock; |
| } |
| |
| static int |
| alloc_socket(struct netconn *newconn) |
| { |
| int i; |
| |
| if (!socksem) |
| socksem = sys_sem_new(1); |
| |
| /* Protect socket array */ |
| sys_sem_wait(socksem); |
| |
| /* allocate a new socket identifier */ |
| for(i = 0; i < NUM_SOCKETS; ++i) { |
| if (!sockets[i].conn) { |
| sockets[i].conn = newconn; |
| sockets[i].lastdata = NULL; |
| sockets[i].lastoffset = 0; |
| sockets[i].rcvevent = 0; |
| sockets[i].sendevent = 1; /* TCP send buf is empty */ |
| sockets[i].flags = 0; |
| sockets[i].err = 0; |
| sys_sem_signal(socksem); |
| return i; |
| } |
| } |
| sys_sem_signal(socksem); |
| return -1; |
| } |
| |
| int |
| lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen) |
| { |
| struct lwip_socket *sock; |
| struct netconn *newconn; |
| struct ip_addr naddr; |
| u16_t port; |
| int newsock; |
| struct sockaddr_in sin; |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d)...\n", s)); |
| sock = get_socket(s); |
| if (!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| newconn = netconn_accept(sock->conn); |
| |
| /* get the IP address and port of the remote host */ |
| netconn_peer(newconn, &naddr, &port); |
| |
| memset(&sin, 0, sizeof(sin)); |
| sin.sin_len = sizeof(sin); |
| sin.sin_family = AF_INET; |
| sin.sin_port = htons(port); |
| sin.sin_addr.s_addr = naddr.addr; |
| |
| if (*addrlen > sizeof(sin)) |
| *addrlen = sizeof(sin); |
| |
| memcpy(addr, &sin, *addrlen); |
| |
| newsock = alloc_socket(newconn); |
| if (newsock == -1) { |
| netconn_delete(newconn); |
| sock_set_errno(sock, ENOBUFS); |
| return -1; |
| } |
| newconn->callback = event_callback; |
| sock = get_socket(newsock); |
| |
| sys_sem_wait(socksem); |
| sock->rcvevent += -1 - newconn->socket; |
| newconn->socket = newsock; |
| sys_sem_signal(socksem); |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d addr=", s, newsock)); |
| ip_addr_debug_print(SOCKETS_DEBUG, &naddr); |
| LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u\n", port)); |
| |
| sock_set_errno(sock, 0); |
| return newsock; |
| } |
| |
| int |
| lwip_bind(int s, struct sockaddr *name, socklen_t namelen) |
| { |
| struct lwip_socket *sock; |
| struct ip_addr local_addr; |
| u16_t local_port; |
| err_t err; |
| |
| sock = get_socket(s); |
| if (!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| local_addr.addr = ((struct sockaddr_in *)name)->sin_addr.s_addr; |
| local_port = ((struct sockaddr_in *)name)->sin_port; |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d, addr=", s)); |
| ip_addr_debug_print(SOCKETS_DEBUG, &local_addr); |
| LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u)\n", ntohs(local_port))); |
| |
| err = netconn_bind(sock->conn, &local_addr, ntohs(local_port)); |
| |
| if (err != ERR_OK) { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) failed, err=%d\n", s, err)); |
| sock_set_errno(sock, err_to_errno(err)); |
| return -1; |
| } |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) succeeded\n", s)); |
| sock_set_errno(sock, 0); |
| return 0; |
| } |
| |
| int |
| lwip_close(int s) |
| { |
| struct lwip_socket *sock; |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_close(%d)\n", s)); |
| if (!socksem) |
| socksem = sys_sem_new(1); |
| |
| /* We cannot allow multiple closes of the same socket. */ |
| sys_sem_wait(socksem); |
| |
| sock = get_socket(s); |
| if (!sock) { |
| sys_sem_signal(socksem); |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| netconn_delete(sock->conn); |
| if (sock->lastdata) { |
| netbuf_delete(sock->lastdata); |
| } |
| sock->lastdata = NULL; |
| sock->lastoffset = 0; |
| sock->conn = NULL; |
| sys_sem_signal(socksem); |
| sock_set_errno(sock, 0); |
| return 0; |
| } |
| |
| int |
| lwip_connect(int s, struct sockaddr *name, socklen_t namelen) |
| { |
| struct lwip_socket *sock; |
| err_t err; |
| |
| sock = get_socket(s); |
| if (!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| if (((struct sockaddr_in *)name)->sin_family == AF_UNSPEC) { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, AF_UNSPEC)\n", s)); |
| err = netconn_disconnect(sock->conn); |
| } else { |
| struct ip_addr remote_addr; |
| u16_t remote_port; |
| |
| remote_addr.addr = ((struct sockaddr_in *)name)->sin_addr.s_addr; |
| remote_port = ((struct sockaddr_in *)name)->sin_port; |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, addr=", s)); |
| ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr); |
| LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u)\n", ntohs(remote_port))); |
| |
| err = netconn_connect(sock->conn, &remote_addr, ntohs(remote_port)); |
| } |
| |
| if (err != ERR_OK) { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) failed, err=%d\n", s, err)); |
| sock_set_errno(sock, err_to_errno(err)); |
| return -1; |
| } |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) succeeded\n", s)); |
| sock_set_errno(sock, 0); |
| return 0; |
| } |
| |
| int |
| lwip_listen(int s, int backlog) |
| { |
| struct lwip_socket *sock; |
| err_t err; |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d, backlog=%d)\n", s, backlog)); |
| sock = get_socket(s); |
| if (!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| err = netconn_listen(sock->conn); |
| |
| if (err != ERR_OK) { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d) failed, err=%d\n", s, err)); |
| sock_set_errno(sock, err_to_errno(err)); |
| return -1; |
| } |
| |
| sock_set_errno(sock, 0); |
| return 0; |
| } |
| |
| int |
| lwip_recvfrom(int s, void *mem, int len, unsigned int flags, |
| struct sockaddr *from, socklen_t *fromlen) |
| { |
| struct lwip_socket *sock; |
| struct netbuf *buf; |
| u16_t buflen, copylen; |
| struct ip_addr *addr; |
| u16_t port; |
| |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d, %p, %d, 0x%x, ..)\n", s, mem, len, flags)); |
| sock = get_socket(s); |
| if (!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| /* Check if there is data left from the last recv operation. */ |
| if (sock->lastdata) { |
| buf = sock->lastdata; |
| } else { |
| /* If this is non-blocking call, then check first */ |
| if (((flags & MSG_DONTWAIT) || (sock->flags & O_NONBLOCK)) |
| && !sock->rcvevent) |
| { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): returning EWOULDBLOCK\n", s)); |
| sock_set_errno(sock, EWOULDBLOCK); |
| return -1; |
| } |
| |
| /* No data was left from the previous operation, so we try to get |
| some from the network. */ |
| buf = netconn_recv(sock->conn); |
| |
| if (!buf) { |
| /* We should really do some error checking here. */ |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL!\n", s)); |
| sock_set_errno(sock, 0); |
| return 0; |
| } |
| } |
| |
| buflen = netbuf_len(buf); |
| |
| buflen -= sock->lastoffset; |
| |
| if (len > buflen) { |
| copylen = buflen; |
| } else { |
| copylen = len; |
| } |
| |
| /* copy the contents of the received buffer into |
| the supplied memory pointer mem */ |
| netbuf_copy_partial(buf, mem, copylen, sock->lastoffset); |
| |
| /* Check to see from where the data was. */ |
| if (from && fromlen) { |
| struct sockaddr_in sin; |
| |
| addr = netbuf_fromaddr(buf); |
| port = netbuf_fromport(buf); |
| |
| memset(&sin, 0, sizeof(sin)); |
| sin.sin_len = sizeof(sin); |
| sin.sin_family = AF_INET; |
| sin.sin_port = htons(port); |
| sin.sin_addr.s_addr = addr->addr; |
| |
| if (*fromlen > sizeof(sin)) |
| *fromlen = sizeof(sin); |
| |
| memcpy(from, &sin, *fromlen); |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s)); |
| ip_addr_debug_print(SOCKETS_DEBUG, addr); |
| LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u len=%u\n", port, copylen)); |
| } else { |
| #if SOCKETS_DEBUG > 0 |
| addr = netbuf_fromaddr(buf); |
| port = netbuf_fromport(buf); |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s)); |
| ip_addr_debug_print(SOCKETS_DEBUG, addr); |
| LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u len=%u\n", port, copylen)); |
| #endif |
| |
| } |
| |
| /* If this is a TCP socket, check if there is data left in the |
| buffer. If so, it should be saved in the sock structure for next |
| time around. */ |
| if (netconn_type(sock->conn) == NETCONN_TCP && buflen - copylen > 0) { |
| sock->lastdata = buf; |
| sock->lastoffset += copylen; |
| } else { |
| sock->lastdata = NULL; |
| sock->lastoffset = 0; |
| netbuf_delete(buf); |
| } |
| |
| |
| sock_set_errno(sock, 0); |
| return copylen; |
| } |
| |
| int |
| lwip_read(int s, void *mem, int len) |
| { |
| return lwip_recvfrom(s, mem, len, 0, NULL, NULL); |
| } |
| |
| int |
| lwip_recv(int s, void *mem, int len, unsigned int flags) |
| { |
| return lwip_recvfrom(s, mem, len, flags, NULL, NULL); |
| } |
| |
| int |
| lwip_send(int s, void *data, int size, unsigned int flags) |
| { |
| struct lwip_socket *sock; |
| struct netbuf *buf; |
| err_t err; |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%d, flags=0x%x)\n", s, data, size, flags)); |
| |
| sock = get_socket(s); |
| if (!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| switch (netconn_type(sock->conn)) { |
| case NETCONN_RAW: |
| case NETCONN_UDP: |
| case NETCONN_UDPLITE: |
| case NETCONN_UDPNOCHKSUM: |
| /* create a buffer */ |
| buf = netbuf_new(); |
| |
| if (!buf) { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) ENOBUFS\n", s)); |
| sock_set_errno(sock, ENOBUFS); |
| return -1; |
| } |
| |
| /* make the buffer point to the data that should |
| be sent */ |
| netbuf_ref(buf, data, size); |
| |
| /* send the data */ |
| err = netconn_send(sock->conn, buf); |
| |
| /* deallocated the buffer */ |
| netbuf_delete(buf); |
| break; |
| case NETCONN_TCP: |
| err = netconn_write(sock->conn, data, size, NETCONN_COPY); |
| break; |
| default: |
| err = ERR_ARG; |
| break; |
| } |
| if (err != ERR_OK) { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d\n", s, err)); |
| sock_set_errno(sock, err_to_errno(err)); |
| return -1; |
| } |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) ok size=%d\n", s, size)); |
| sock_set_errno(sock, 0); |
| return size; |
| } |
| |
| int |
| lwip_sendto(int s, void *data, int size, unsigned int flags, |
| struct sockaddr *to, socklen_t tolen) |
| { |
| struct lwip_socket *sock; |
| struct ip_addr remote_addr, addr; |
| u16_t remote_port, port; |
| int ret,connected; |
| |
| sock = get_socket(s); |
| if (!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| /* get the peer if currently connected */ |
| connected = (netconn_peer(sock->conn, &addr, &port) == ERR_OK); |
| |
| remote_addr.addr = ((struct sockaddr_in *)to)->sin_addr.s_addr; |
| remote_port = ((struct sockaddr_in *)to)->sin_port; |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_sendto(%d, data=%p, size=%d, flags=0x%x to=", s, data, size, flags)); |
| ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr); |
| LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u\n", ntohs(remote_port))); |
| |
| netconn_connect(sock->conn, &remote_addr, ntohs(remote_port)); |
| |
| ret = lwip_send(s, data, size, flags); |
| |
| /* reset the remote address and port number |
| of the connection */ |
| if (connected) |
| netconn_connect(sock->conn, &addr, port); |
| else |
| netconn_disconnect(sock->conn); |
| return ret; |
| } |
| |
| int |
| lwip_socket(int domain, int type, int protocol) |
| { |
| struct netconn *conn; |
| int i; |
| |
| /* create a netconn */ |
| switch (type) { |
| case SOCK_RAW: |
| conn = netconn_new_with_proto_and_callback(NETCONN_RAW, protocol, event_callback); |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_RAW, %d) = ", domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol)); |
| break; |
| case SOCK_DGRAM: |
| conn = netconn_new_with_callback(NETCONN_UDP, event_callback); |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_DGRAM, %d) = ", domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol)); |
| break; |
| case SOCK_STREAM: |
| conn = netconn_new_with_callback(NETCONN_TCP, event_callback); |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_STREAM, %d) = ", domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol)); |
| break; |
| default: |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%d, %d/UNKNOWN, %d) = -1\n", domain, type, protocol)); |
| set_errno(EINVAL); |
| return -1; |
| } |
| |
| if (!conn) { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("-1 / ENOBUFS (could not create netconn)\n")); |
| set_errno(ENOBUFS); |
| return -1; |
| } |
| |
| i = alloc_socket(conn); |
| |
| if (i == -1) { |
| netconn_delete(conn); |
| set_errno(ENOBUFS); |
| return -1; |
| } |
| conn->socket = i; |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("%d\n", i)); |
| set_errno(0); |
| return i; |
| } |
| |
| int |
| lwip_write(int s, void *data, int size) |
| { |
| return lwip_send(s, data, size, 0); |
| } |
| |
| |
| static int |
| lwip_selscan(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset) |
| { |
| int i, nready = 0; |
| fd_set lreadset, lwriteset, lexceptset; |
| struct lwip_socket *p_sock; |
| |
| FD_ZERO(&lreadset); |
| FD_ZERO(&lwriteset); |
| FD_ZERO(&lexceptset); |
| |
| /* Go through each socket in each list to count number of sockets which |
| currently match */ |
| for(i = 0; i < maxfdp1; i++) |
| { |
| if (FD_ISSET(i, readset)) |
| { |
| /* See if netconn of this socket is ready for read */ |
| p_sock = get_socket(i); |
| if (p_sock && (p_sock->lastdata || p_sock->rcvevent)) |
| { |
| FD_SET(i, &lreadset); |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for reading\n", i)); |
| nready++; |
| } |
| } |
| if (FD_ISSET(i, writeset)) |
| { |
| /* See if netconn of this socket is ready for write */ |
| p_sock = get_socket(i); |
| if (p_sock && p_sock->sendevent) |
| { |
| FD_SET(i, &lwriteset); |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for writing\n", i)); |
| nready++; |
| } |
| } |
| } |
| *readset = lreadset; |
| *writeset = lwriteset; |
| FD_ZERO(exceptset); |
| |
| return nready; |
| } |
| |
| |
| |
| int |
| lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset, |
| struct timeval *timeout) |
| { |
| int i; |
| int nready; |
| fd_set lreadset, lwriteset, lexceptset; |
| u32_t msectimeout; |
| struct lwip_select_cb select_cb; |
| struct lwip_select_cb *p_selcb; |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select(%d, %p, %p, %p, tvsec=%ld tvusec=%ld)\n", maxfdp1, (void *)readset, (void *) writeset, (void *) exceptset, timeout ? timeout->tv_sec : -1L, timeout ? timeout->tv_usec : -1L)); |
| |
| select_cb.next = 0; |
| select_cb.readset = readset; |
| select_cb.writeset = writeset; |
| select_cb.exceptset = exceptset; |
| select_cb.sem_signalled = 0; |
| |
| /* Protect ourselves searching through the list */ |
| if (!selectsem) |
| selectsem = sys_sem_new(1); |
| sys_sem_wait(selectsem); |
| |
| if (readset) |
| lreadset = *readset; |
| else |
| FD_ZERO(&lreadset); |
| if (writeset) |
| lwriteset = *writeset; |
| else |
| FD_ZERO(&lwriteset); |
| if (exceptset) |
| lexceptset = *exceptset; |
| else |
| FD_ZERO(&lexceptset); |
| |
| /* Go through each socket in each list to count number of sockets which |
| currently match */ |
| nready = lwip_selscan(maxfdp1, &lreadset, &lwriteset, &lexceptset); |
| |
| /* If we don't have any current events, then suspend if we are supposed to */ |
| if (!nready) |
| { |
| if (timeout && timeout->tv_sec == 0 && timeout->tv_usec == 0) |
| { |
| sys_sem_signal(selectsem); |
| if (readset) |
| FD_ZERO(readset); |
| if (writeset) |
| FD_ZERO(writeset); |
| if (exceptset) |
| FD_ZERO(exceptset); |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: no timeout, returning 0\n")); |
| set_errno(0); |
| |
| return 0; |
| } |
| |
| /* add our semaphore to list */ |
| /* We don't actually need any dynamic memory. Our entry on the |
| * list is only valid while we are in this function, so it's ok |
| * to use local variables */ |
| |
| select_cb.sem = sys_sem_new(0); |
| /* Note that we are still protected */ |
| /* Put this select_cb on top of list */ |
| select_cb.next = select_cb_list; |
| select_cb_list = &select_cb; |
| |
| /* Now we can safely unprotect */ |
| sys_sem_signal(selectsem); |
| |
| /* Now just wait to be woken */ |
| if (timeout == 0) |
| /* Wait forever */ |
| msectimeout = 0; |
| else |
| msectimeout = ((timeout->tv_sec * 1000) + ((timeout->tv_usec + 500)/1000)); |
| |
| i = sys_sem_wait_timeout(select_cb.sem, msectimeout); |
| |
| /* Take us off the list */ |
| sys_sem_wait(selectsem); |
| if (select_cb_list == &select_cb) |
| select_cb_list = select_cb.next; |
| else |
| for (p_selcb = select_cb_list; p_selcb; p_selcb = p_selcb->next) |
| if (p_selcb->next == &select_cb) |
| { |
| p_selcb->next = select_cb.next; |
| break; |
| } |
| |
| sys_sem_signal(selectsem); |
| |
| sys_sem_free(select_cb.sem); |
| if (i == 0) /* Timeout */ |
| { |
| if (readset) |
| FD_ZERO(readset); |
| if (writeset) |
| FD_ZERO(writeset); |
| if (exceptset) |
| FD_ZERO(exceptset); |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: timeout expired\n")); |
| set_errno(0); |
| |
| return 0; |
| } |
| |
| if (readset) |
| lreadset = *readset; |
| else |
| FD_ZERO(&lreadset); |
| if (writeset) |
| lwriteset = *writeset; |
| else |
| FD_ZERO(&lwriteset); |
| if (exceptset) |
| lexceptset = *exceptset; |
| else |
| FD_ZERO(&lexceptset); |
| |
| /* See what's set */ |
| nready = lwip_selscan(maxfdp1, &lreadset, &lwriteset, &lexceptset); |
| } |
| else |
| sys_sem_signal(selectsem); |
| |
| if (readset) |
| *readset = lreadset; |
| if (writeset) |
| *writeset = lwriteset; |
| if (exceptset) |
| *exceptset = lexceptset; |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: nready=%d\n", nready)); |
| set_errno(0); |
| |
| return nready; |
| } |
| |
| |
| static void |
| event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len) |
| { |
| int s; |
| struct lwip_socket *sock; |
| struct lwip_select_cb *scb; |
| |
| /* Get socket */ |
| if (conn) |
| { |
| s = conn->socket; |
| if (s < 0) |
| { |
| /* Data comes in right away after an accept, even though |
| * the server task might not have created a new socket yet. |
| * Just count down (or up) if that's the case and we |
| * will use the data later. Note that only receive events |
| * can happen before the new socket is set up. */ |
| if (evt == NETCONN_EVT_RCVPLUS) |
| conn->socket--; |
| return; |
| } |
| |
| sock = get_socket(s); |
| if (!sock) |
| return; |
| } |
| else |
| return; |
| |
| if (!selectsem) |
| selectsem = sys_sem_new(1); |
| |
| sys_sem_wait(selectsem); |
| /* Set event as required */ |
| switch (evt) |
| { |
| case NETCONN_EVT_RCVPLUS: |
| sock->rcvevent++; |
| break; |
| case NETCONN_EVT_RCVMINUS: |
| sock->rcvevent--; |
| break; |
| case NETCONN_EVT_SENDPLUS: |
| sock->sendevent = 1; |
| break; |
| case NETCONN_EVT_SENDMINUS: |
| sock->sendevent = 0; |
| break; |
| } |
| sys_sem_signal(selectsem); |
| |
| /* Now decide if anyone is waiting for this socket */ |
| /* NOTE: This code is written this way to protect the select link list |
| but to avoid a deadlock situation by releasing socksem before |
| signalling for the select. This means we need to go through the list |
| multiple times ONLY IF a select was actually waiting. We go through |
| the list the number of waiting select calls + 1. This list is |
| expected to be small. */ |
| while (1) |
| { |
| sys_sem_wait(selectsem); |
| for (scb = select_cb_list; scb; scb = scb->next) |
| { |
| if (scb->sem_signalled == 0) |
| { |
| /* Test this select call for our socket */ |
| if (scb->readset && FD_ISSET(s, scb->readset)) |
| if (sock->rcvevent) |
| break; |
| if (scb->writeset && FD_ISSET(s, scb->writeset)) |
| if (sock->sendevent) |
| break; |
| } |
| } |
| if (scb) |
| { |
| scb->sem_signalled = 1; |
| sys_sem_signal(selectsem); |
| sys_sem_signal(scb->sem); |
| } else { |
| sys_sem_signal(selectsem); |
| break; |
| } |
| } |
| |
| } |
| |
| |
| |
| |
| int lwip_shutdown(int s, int how) |
| { |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_shutdown(%d, how=%d)\n", s, how)); |
| return lwip_close(s); /* XXX temporary hack until proper implementation */ |
| } |
| |
| int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen) |
| { |
| struct lwip_socket *sock; |
| struct sockaddr_in sin; |
| struct ip_addr naddr; |
| |
| sock = get_socket(s); |
| if (!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| memset(&sin, 0, sizeof(sin)); |
| sin.sin_len = sizeof(sin); |
| sin.sin_family = AF_INET; |
| |
| /* get the IP address and port of the remote host */ |
| netconn_peer(sock->conn, &naddr, &sin.sin_port); |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getpeername(%d, addr=", s)); |
| ip_addr_debug_print(SOCKETS_DEBUG, &naddr); |
| LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%d)\n", sin.sin_port)); |
| |
| sin.sin_port = htons(sin.sin_port); |
| sin.sin_addr.s_addr = naddr.addr; |
| |
| if (*namelen > sizeof(sin)) |
| *namelen = sizeof(sin); |
| |
| memcpy(name, &sin, *namelen); |
| sock_set_errno(sock, 0); |
| return 0; |
| } |
| |
| int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen) |
| { |
| struct lwip_socket *sock; |
| struct sockaddr_in sin; |
| struct ip_addr *naddr; |
| |
| sock = get_socket(s); |
| if (!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| memset(&sin, 0, sizeof(sin)); |
| sin.sin_len = sizeof(sin); |
| sin.sin_family = AF_INET; |
| |
| /* get the IP address and port of the remote host */ |
| netconn_addr(sock->conn, &naddr, &sin.sin_port); |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockname(%d, addr=", s)); |
| ip_addr_debug_print(SOCKETS_DEBUG, naddr); |
| LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%d)\n", sin.sin_port)); |
| |
| sin.sin_port = htons(sin.sin_port); |
| sin.sin_addr.s_addr = naddr->addr; |
| |
| if (*namelen > sizeof(sin)) |
| *namelen = sizeof(sin); |
| |
| memcpy(name, &sin, *namelen); |
| sock_set_errno(sock, 0); |
| return 0; |
| } |
| |
| int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen) |
| { |
| int err = 0; |
| struct lwip_socket *sock = get_socket(s); |
| |
| if(!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| if( NULL == optval || NULL == optlen ) { |
| sock_set_errno( sock, EFAULT ); |
| return -1; |
| } |
| |
| /* Do length and type checks for the various options first, to keep it readable. */ |
| switch( level ) { |
| |
| /* Level: SOL_SOCKET */ |
| case SOL_SOCKET: |
| switch(optname) { |
| |
| case SO_ACCEPTCONN: |
| case SO_BROADCAST: |
| /* UNIMPL case SO_DEBUG: */ |
| /* UNIMPL case SO_DONTROUTE: */ |
| case SO_ERROR: |
| case SO_KEEPALIVE: |
| /* UNIMPL case SO_OOBINLINE: */ |
| /* UNIMPL case SO_RCVBUF: */ |
| /* UNIMPL case SO_SNDBUF: */ |
| /* UNIMPL case SO_RCVLOWAT: */ |
| /* UNIMPL case SO_SNDLOWAT: */ |
| #ifdef SO_REUSE |
| case SO_REUSEADDR: |
| case SO_REUSEPORT: |
| #endif /* SO_REUSE */ |
| case SO_TYPE: |
| /* UNIMPL case SO_USELOOPBACK: */ |
| if( *optlen < sizeof(int) ) { |
| err = EINVAL; |
| } |
| break; |
| |
| default: |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n", s, optname)); |
| err = ENOPROTOOPT; |
| } /* switch */ |
| break; |
| |
| /* Level: IPPROTO_IP */ |
| case IPPROTO_IP: |
| switch(optname) { |
| /* UNIMPL case IP_HDRINCL: */ |
| /* UNIMPL case IP_RCVDSTADDR: */ |
| /* UNIMPL case IP_RCVIF: */ |
| case IP_TTL: |
| case IP_TOS: |
| if( *optlen < sizeof(int) ) { |
| err = EINVAL; |
| } |
| break; |
| |
| default: |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n", s, optname)); |
| err = ENOPROTOOPT; |
| } /* switch */ |
| break; |
| |
| /* Level: IPPROTO_TCP */ |
| case IPPROTO_TCP: |
| if( *optlen < sizeof(int) ) { |
| err = EINVAL; |
| break; |
| } |
| |
| /* If this is no TCP socket, ignore any options. */ |
| if ( sock->conn->type != NETCONN_TCP ) return 0; |
| |
| switch( optname ) { |
| case TCP_NODELAY: |
| case TCP_KEEPALIVE: |
| break; |
| |
| default: |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n", s, optname)); |
| err = ENOPROTOOPT; |
| } /* switch */ |
| break; |
| |
| /* UNDEFINED LEVEL */ |
| default: |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n", s, level, optname)); |
| err = ENOPROTOOPT; |
| } /* switch */ |
| |
| |
| if( 0 != err ) { |
| sock_set_errno(sock, err); |
| return -1; |
| } |
| |
| |
| |
| /* Now do the actual option processing */ |
| |
| switch(level) { |
| |
| /* Level: SOL_SOCKET */ |
| case SOL_SOCKET: |
| switch( optname ) { |
| |
| /* The option flags */ |
| case SO_ACCEPTCONN: |
| case SO_BROADCAST: |
| /* UNIMPL case SO_DEBUG: */ |
| /* UNIMPL case SO_DONTROUTE: */ |
| case SO_KEEPALIVE: |
| /* UNIMPL case SO_OOBINCLUDE: */ |
| #ifdef SO_REUSE |
| case SO_REUSEADDR: |
| case SO_REUSEPORT: |
| #endif /* SO_REUSE */ |
| /*case SO_USELOOPBACK: UNIMPL */ |
| *(int*)optval = sock->conn->pcb.tcp->so_options & optname; |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, optname=0x%x, ..) = %s\n", s, optname, (*(int*)optval?"on":"off"))); |
| break; |
| |
| case SO_TYPE: |
| switch (sock->conn->type) { |
| case NETCONN_RAW: |
| *(int*)optval = SOCK_RAW; |
| break; |
| case NETCONN_TCP: |
| *(int*)optval = SOCK_STREAM; |
| break; |
| case NETCONN_UDP: |
| case NETCONN_UDPLITE: |
| case NETCONN_UDPNOCHKSUM: |
| *(int*)optval = SOCK_DGRAM; |
| break; |
| default: /* unrecognized socket type */ |
| *(int*)optval = sock->conn->type; |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE): unrecognized socket type %d\n", s, *(int *)optval)); |
| } /* switch */ |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE) = %d\n", s, *(int *)optval)); |
| break; |
| |
| case SO_ERROR: |
| *(int *)optval = sock->err; |
| sock->err = 0; |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_ERROR) = %d\n", s, *(int *)optval)); |
| break; |
| } /* switch */ |
| break; |
| |
| /* Level: IPPROTO_IP */ |
| case IPPROTO_IP: |
| switch( optname ) { |
| case IP_TTL: |
| *(int*)optval = sock->conn->pcb.tcp->ttl; |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TTL) = %d\n", s, *(int *)optval)); |
| break; |
| case IP_TOS: |
| *(int*)optval = sock->conn->pcb.tcp->tos; |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TOS) = %d\n", s, *(int *)optval)); |
| break; |
| } /* switch */ |
| break; |
| |
| /* Level: IPPROTO_TCP */ |
| case IPPROTO_TCP: |
| switch( optname ) { |
| case TCP_NODELAY: |
| *(int*)optval = (sock->conn->pcb.tcp->flags & TF_NODELAY); |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_NODELAY) = %s\n", s, (*(int*)optval)?"on":"off") ); |
| break; |
| case TCP_KEEPALIVE: |
| *(int*)optval = sock->conn->pcb.tcp->keepalive; |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPALIVE) = %d\n", s, *(int *)optval)); |
| break; |
| } /* switch */ |
| break; |
| } |
| |
| |
| sock_set_errno(sock, err); |
| return err ? -1 : 0; |
| } |
| |
| int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen) |
| { |
| struct lwip_socket *sock = get_socket(s); |
| int err = 0; |
| |
| if(!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| if( NULL == optval ) { |
| sock_set_errno( sock, EFAULT ); |
| return -1; |
| } |
| |
| |
| /* Do length and type checks for the various options first, to keep it readable. */ |
| switch( level ) { |
| |
| /* Level: SOL_SOCKET */ |
| case SOL_SOCKET: |
| switch(optname) { |
| |
| case SO_BROADCAST: |
| /* UNIMPL case SO_DEBUG: */ |
| /* UNIMPL case SO_DONTROUTE: */ |
| case SO_KEEPALIVE: |
| /* UNIMPL case SO_OOBINLINE: */ |
| /* UNIMPL case SO_RCVBUF: */ |
| /* UNIMPL case SO_SNDBUF: */ |
| /* UNIMPL case SO_RCVLOWAT: */ |
| /* UNIMPL case SO_SNDLOWAT: */ |
| #ifdef SO_REUSE |
| case SO_REUSEADDR: |
| case SO_REUSEPORT: |
| #endif /* SO_REUSE */ |
| /* UNIMPL case SO_USELOOPBACK: */ |
| if( optlen < sizeof(int) ) { |
| err = EINVAL; |
| } |
| break; |
| default: |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n", s, optname)); |
| err = ENOPROTOOPT; |
| } /* switch */ |
| break; |
| |
| /* Level: IPPROTO_IP */ |
| case IPPROTO_IP: |
| switch(optname) { |
| /* UNIMPL case IP_HDRINCL: */ |
| /* UNIMPL case IP_RCVDSTADDR: */ |
| /* UNIMPL case IP_RCVIF: */ |
| case IP_TTL: |
| case IP_TOS: |
| if( optlen < sizeof(int) ) { |
| err = EINVAL; |
| } |
| break; |
| default: |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n", s, optname)); |
| err = ENOPROTOOPT; |
| } /* switch */ |
| break; |
| |
| /* Level: IPPROTO_TCP */ |
| case IPPROTO_TCP: |
| if( optlen < sizeof(int) ) { |
| err = EINVAL; |
| break; |
| } |
| |
| /* If this is no TCP socket, ignore any options. */ |
| if ( sock->conn->type != NETCONN_TCP ) return 0; |
| |
| switch( optname ) { |
| case TCP_NODELAY: |
| case TCP_KEEPALIVE: |
| break; |
| |
| default: |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n", s, optname)); |
| err = ENOPROTOOPT; |
| } /* switch */ |
| break; |
| |
| /* UNDEFINED LEVEL */ |
| default: |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n", s, level, optname)); |
| err = ENOPROTOOPT; |
| } /* switch */ |
| |
| |
| if( 0 != err ) { |
| sock_set_errno(sock, err); |
| return -1; |
| } |
| |
| |
| |
| /* Now do the actual option processing */ |
| |
| switch(level) { |
| |
| /* Level: SOL_SOCKET */ |
| case SOL_SOCKET: |
| switch(optname) { |
| |
| /* The option flags */ |
| case SO_BROADCAST: |
| /* UNIMPL case SO_DEBUG: */ |
| /* UNIMPL case SO_DONTROUTE: */ |
| case SO_KEEPALIVE: |
| /* UNIMPL case SO_OOBINCLUDE: */ |
| #ifdef SO_REUSE |
| case SO_REUSEADDR: |
| case SO_REUSEPORT: |
| #endif /* SO_REUSE */ |
| /* UNIMPL case SO_USELOOPBACK: */ |
| if ( *(int*)optval ) { |
| sock->conn->pcb.tcp->so_options |= optname; |
| } else { |
| sock->conn->pcb.tcp->so_options &= ~optname; |
| } |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, optname=0x%x, ..) -> %s\n", s, optname, (*(int*)optval?"on":"off"))); |
| break; |
| } /* switch */ |
| break; |
| |
| /* Level: IPPROTO_IP */ |
| case IPPROTO_IP: |
| switch( optname ) { |
| case IP_TTL: |
| sock->conn->pcb.tcp->ttl = (u8_t)(*(int*)optval); |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TTL, ..) -> %u\n", s, sock->conn->pcb.tcp->ttl)); |
| break; |
| case IP_TOS: |
| sock->conn->pcb.tcp->tos = (u8_t)(*(int*)optval); |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TOS, ..)-> %u\n", s, sock->conn->pcb.tcp->tos)); |
| break; |
| } /* switch */ |
| break; |
| |
| /* Level: IPPROTO_TCP */ |
| case IPPROTO_TCP: |
| switch( optname ) { |
| case TCP_NODELAY: |
| if ( *(int*)optval ) { |
| sock->conn->pcb.tcp->flags |= TF_NODELAY; |
| } else { |
| sock->conn->pcb.tcp->flags &= ~TF_NODELAY; |
| } |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n", s, (*(int *)optval)?"on":"off") ); |
| break; |
| case TCP_KEEPALIVE: |
| sock->conn->pcb.tcp->keepalive = (u32_t)(*(int*)optval); |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) -> %u\n", s, sock->conn->pcb.tcp->keepalive)); |
| break; |
| } /* switch */ |
| break; |
| } /* switch */ |
| |
| sock_set_errno(sock, err); |
| return err ? -1 : 0; |
| } |
| |
| int lwip_ioctl(int s, long cmd, void *argp) |
| { |
| struct lwip_socket *sock = get_socket(s); |
| |
| if(!sock) { |
| set_errno(EBADF); |
| return -1; |
| } |
| |
| switch (cmd) { |
| case FIONREAD: |
| if (!argp) { |
| sock_set_errno(sock, EINVAL); |
| return -1; |
| } |
| |
| *((u16_t*)argp) = sock->conn->recv_avail; |
| |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONREAD, %p) = %u\n", s, argp, *((u16_t*)argp))); |
| sock_set_errno(sock, 0); |
| return 0; |
| |
| case FIONBIO: |
| if (argp && *(u32_t*)argp) |
| sock->flags |= O_NONBLOCK; |
| else |
| sock->flags &= ~O_NONBLOCK; |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONBIO, %d)\n", s, !!(sock->flags & O_NONBLOCK))); |
| sock_set_errno(sock, 0); |
| return 0; |
| |
| default: |
| LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, UNIMPL: 0x%lx, %p)\n", s, cmd, argp)); |
| sock_set_errno(sock, ENOSYS); /* not yet implemented */ |
| return -1; |
| } |
| } |
| |