Added framework for getsockopt() setsockopt()

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@332 42af7a65-404d-4744-a932-0658087f49c3

4 files changed, 252 insertions, 1 deletions

diff --git a/nuttx/net/Makefile b/nuttx/net/Makefile
index 089d45513..2b514fe5e 100644
--- a/nuttx/net/Makefile
+++ b/nuttx/net/Makefile
@@ -41,7 +41,7 @@ MKDEP		= $(TOPDIR)/tools/mkdeps.sh
 ifeq ($(CONFIG_NET),y)
 STD_ASRCS	=
 STD_CSRCS	= socket.c bind.c connect.c send.c sendto.c recv.c recvfrom.c \
-		  net_sockets.c net-close.c
+		  setsockopt.c getsockopt.c net_sockets.c net-close.c
 include uip/Make.defs
 endif
 
diff --git a/nuttx/net/getsockopt.c b/nuttx/net/getsockopt.c
new file mode 100644
index 000000000..369c9201d
--- /dev/null
+++ b/nuttx/net/getsockopt.c
@@ -0,0 +1,102 @@
+/****************************************************************************
+ * net/getsockopt.c
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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
+ * COPYRIGHT OWNER OR CONTRIBUTORS 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#ifdef CONFIG_NET
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <errno.h>
+
+#include "net_internal.h"
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: getsockopt
+ *
+ * Description:
+ *   getsockopt() retrieve thse value for the option specified by the
+ *   'option' argument for the socket specified by the 'sockfd' argument. If
+ *   the size of the option value is greater than 'value_len', the value
+ *   stored in the object pointed to by the 'value' argument will be silently
+ *   truncated. Otherwise, the length pointed to by the 'value_len' argument
+ *   will be modified to indicate the actual length of the'value'.
+ *
+ *   The 'level' argument specifies the protocol level of the option. To
+ *   retrieve options at the socket level, specify the level argument as
+ *   SOL_SOCKET.
+ *
+ *   See <sys/socket.h> a complete list of values for the 'option' argument.
+ *
+ * Parameters:
+ *   sockfd    Socket descriptor of socket
+ *   level     Protocol level to set the option
+ *   option    identifies the option to get
+ *   value     Points to the argument value
+ *   value_len The length of the argument value
+ *
+ * Returned Value:
+ *
+ *  EBADF
+ *    The 'sockfd' argument is not a valid socket descriptor.
+ *  EINVAL
+ *    The specified option is invalid at the specified socket 'level' or the
+ *    socket has been shutdown.
+ *  ENOPROTOOPT
+ *    The 'option' is not supported by the protocol.
+ *  ENOTSOCK
+ *    The 'sockfd' argument does not refer to a socket.
+ *  ENOBUFS
+ *    Insufficient resources are available in the system to complete the
+ *    call.
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+int getsockopt(int sockfd, int level, int option, void *value, socklen_t *value_len)
+{
+  *get_errno_ptr() = ENOPROTOOPT;
+  return ERROR;
+}
+
+#endif /* CONFIG_NET */
diff --git a/nuttx/net/net_internal.h b/nuttx/net/net_internal.h
index 2bc7e4d7d..584c49c76 100644
--- a/nuttx/net/net_internal.h
+++ b/nuttx/net/net_internal.h
@@ -51,6 +51,47 @@
  * Definitions
  ****************************************************************************/
 
+/* These define bit positions for each socket option (see sys/socket.h) */
+
+#define _SO_DEBUG        (1 << SO_DEBUG)
+#define _SO_ACCEPTCONN   (1 << SO_ACCEPTCONN)
+#define _SO_BROADCAST    (1 << SO_BROADCAST)
+#define _SO_REUSEADDR    (1 << SO_REUSEADDR)
+#define _SO_KEEPALIVE    (1 << SO_KEEPALIVE)
+#define _SO_LINGER       (1 << SO_LINGER)
+#define _SO_OOBINLINE    (1 << SO_OOBINLINE)
+#define _SO_SNDBUF       (1 << SO_SNDBUF)
+#define _SO_RCVBUF       (1 << SO_RCVBUF)
+#define _SO_ERROR        (1 << SO_ERROR)
+#define _SO_TYPE         (1 << SO_TYPE)
+#define _SO_DONTROUTE    (1 << SO_DONTROUTE)
+#define _SO_RCVLOWAT     (1 << SO_RCVLOWAT)
+#define _SO_RCVTIMEO     (1 << SO_RCVTIMEO)
+#define _SO_SNDLOWAT     (1 << SO_SNDLOWAT)
+#define _SO_SNDTIMEO     (1 << SO_SNDTIMEO)
+
+/* This idenfies the options that have been implemented.  Someday this
+ * should be 0xffff
+ */
+
+#define _SO_IMPLEMENTED  0x0000
+
+/* The set of all valid options is a subset of those that are implemented
+ * and those that can be supported within the kernel OS configuration.
+ */
+
+#ifdef CONFIG_DISABLE_CLOCK
+# define _SO_ALLOPTIONS  (_SO_IMPLEMENTED & ~(_SO_RCVTIMEO|_SO_SNDTIMEO)
+#else
+# define _SO_ALLOPTIONS  (_SO_IMPLEMENTED)
+#endif
+
+/* This is the set of options valid for getsockopt and setsockopt */
+
+#define _SO_GETONLY      (_SO_ACCEPTCONN|_SO_ERROR|_SO_TYPE)
+#define _SO_SETOPTS      (_SO_ALLOPTIONS & ~_SO_GETONLY)
+#define _SO_GETOTPS      _SO_ALLOPTIONS
+
 /****************************************************************************
  * Public Types
  ****************************************************************************/
diff --git a/nuttx/net/setsockopt.c b/nuttx/net/setsockopt.c
new file mode 100644
index 000000000..786b4da19
--- /dev/null
+++ b/nuttx/net/setsockopt.c
@@ -0,0 +1,108 @@
+/****************************************************************************
+ * net/setsockopt.c
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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
+ * COPYRIGHT OWNER OR CONTRIBUTORS 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#ifdef CONFIG_NET
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <errno.h>
+
+#include "net_internal.h"
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: setsockopt
+ *
+ * Description:
+ *   setsockopt() sets the option specified by the 'option' argument,
+ *   at the protocol level specified by the 'level' argument, to the value
+ *   pointed to by the 'value' argument for the socket associated with the
+ *   file descriptor specified by the 'sockfd' argument.
+ *
+ *   The 'level' argument specifies the protocol level of the option. To set
+ *   options at the socket level, specify the level argument as SOL_SOCKET.
+ *
+ *   See <sys/socket.h> a complete list of values for the 'option' argument.
+ *
+ * Parameters:
+ *   sockfd    Socket descriptor of socket
+ *   level     Protocol level to set the option
+ *   option    identifies the option to set
+ *   value     Points to the argument value
+ *   value_len The length of the argument value
+ *
+ * Returned Value:
+ *  0 on success; -1 on failure
+ *
+ *  EBADF
+ *    The 'sockfd' argument is not a valid socket descriptor.
+ *  EDOM
+ *    The send and receive timeout values are too big to fit into the
+ *    timeout fields in the socket structure.
+ *  EINVAL
+ *    The specified option is invalid at the specified socket 'level' or the
+ *    socket has been shut down.
+ *  EISCONN
+ *    The socket is already connected, and a specified option cannot be set
+ *    while the socket is connected.
+ *  ENOPROTOOPT
+ *    The 'option' is not supported by the protocol.
+ *  ENOTSOCK
+ *    The 'sockfd' argument does not refer to a socket.
+ *  ENOMEM
+ *    There was insufficient memory available for the operation to complete.
+ *  ENOBUFS
+ *    Insufficient resources are available in the system to complete the
+ *    call.
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+int setsockopt(int sockfd, int level, int option, const void *value, socklen_t value_len)
+{
+  *get_errno_ptr() = ENOPROTOOPT;
+  return ERROR;
+}
+
+#endif /* CONFIG_NET */