net: Remove the empty si_getpeername implementation

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

net/can/can_sockif.c

@@ -53,8 +53,6 @@ static sockcaps_t can_sockcaps(FAR struct socket *psock);
 static void can_addref(FAR struct socket *psock);
 static int  can_bind(FAR struct socket *psock,
               FAR const struct sockaddr *addr, socklen_t addrlen);
-static int  can_getpeername(FAR struct socket *psock,
-              FAR struct sockaddr *addr, FAR socklen_t *addrlen);
 static int  can_listen(FAR struct socket *psock, int backlog);
 static int  can_connect(FAR struct socket *psock,
               FAR const struct sockaddr *addr, socklen_t addrlen);
@@ -75,7 +73,7 @@ const struct sock_intf_s g_can_sockif =
   can_addref,       /* si_addref */
   can_bind,         /* si_bind */
   NULL,             /* si_getsockname */
-  can_getpeername,  /* si_getpeername */
+  NULL,             /* si_getpeername */
   can_listen,       /* si_listen */
   can_connect,      /* si_connect */
   can_accept,       /* si_accept */
@@ -340,41 +338,6 @@ static int can_bind(FAR struct socket *psock,
   return OK;
 }
 
-/****************************************************************************
- * Name: can_getpeername
- *
- * Description:
- *   The can_getpeername() function retrieves the remote-connected name
- *   of the specified packet socket, stores this address in the sockaddr
- *   structure pointed to by the 'addr' argument, and stores the length of
- *   this address in the object pointed to by the 'addrlen' argument.
- *
- *   If the actual length of the address is greater than the length of the
- *   supplied sockaddr structure, the stored address will be truncated.
- *
- *   If the socket has not been bound to a local name, the value stored in
- *   the object pointed to by address is unspecified.
- *
- * Parameters:
- *   psock    Socket structure of the socket to be queried
- *   addr     sockaddr structure to receive data [out]
- *   addrlen  Length of sockaddr structure [in/out]
- *
- * Returned Value:
- *   On success, 0 is returned, the 'addr' argument points to the address
- *   of the socket, and the 'addrlen' argument points to the length of the
- *   address.  Otherwise, a negated errno value is returned.  See
- *   getpeername() for the list of appropriate error numbers.
- *
- ****************************************************************************/
-
-static int can_getpeername(FAR struct socket *psock,
-                           FAR struct sockaddr *addr,
-                           FAR socklen_t *addrlen)
-{
-  return -EOPNOTSUPP;
-}
-
 /****************************************************************************
  * Name: can_listen
  *

net/icmp/icmp_sockif.c

@@ -47,8 +47,6 @@
 static int        icmp_setup(FAR struct socket *psock);
 static sockcaps_t icmp_sockcaps(FAR struct socket *psock);
 static void       icmp_addref(FAR struct socket *psock);
-static int        icmp_getpeername(FAR struct socket *psock,
-                    FAR struct sockaddr *addr, FAR socklen_t *addrlen);
 static int        icmp_listen(FAR struct socket *psock, int backlog);
 static int        icmp_connect(FAR struct socket *psock,
                     FAR const struct sockaddr *addr, socklen_t addrlen);
@@ -70,7 +68,7 @@ const struct sock_intf_s g_icmp_sockif =
   icmp_addref,      /* si_addref */
   NULL,             /* si_bind */
   NULL,             /* si_getsockname */
-  icmp_getpeername, /* si_getpeername */
+  NULL,             /* si_getpeername */
   icmp_listen,      /* si_listen */
   icmp_connect,     /* si_connect */
   icmp_accept,      /* si_accept */
@@ -275,40 +273,6 @@ static int icmp_accept(FAR struct socket *psock, FAR struct sockaddr *addr,
   return -EAFNOSUPPORT;
 }
 
-/****************************************************************************
- * Name: icmp_getpeername
- *
- * Description:
- *   The icmp_getpeername() function retrieves the remote-connected name of
- *   the specified packet socket, stores this address in the sockaddr
- *   structure pointed to by the 'addr' argument, and stores the length of
- *   this address in the object pointed to by the 'addrlen' argument.
- *
- *   If the actual length of the address is greater than the length of the
- *   supplied sockaddr structure, the stored address will be truncated.
- *
- *   If the socket has not been bound to a local name, the value stored in
- *   the object pointed to by address is unspecified.
- *
- * Parameters:
- *   psock    Socket structure of the socket to be queried
- *   addr     sockaddr structure to receive data [out]
- *   addrlen  Length of sockaddr structure [in/out]
- *
- * Returned Value:
- *   On success, 0 is returned, the 'addr' argument points to the address
- *   of the socket, and the 'addrlen' argument points to the length of the
- *   address.  Otherwise, a negated errno value is returned.  See
- *   getpeername() for the list of appropriate error numbers.
- *
- ****************************************************************************/
-
-static int icmp_getpeername(FAR struct socket *psock,
-                           FAR struct sockaddr *addr, FAR socklen_t *addrlen)
-{
-  return -EAFNOSUPPORT;
-}
-
 /****************************************************************************
  * Name: icmp_listen
  *

net/icmpv6/icmpv6_sockif.c

@@ -47,8 +47,6 @@
 static int        icmpv6_setup(FAR struct socket *psock);
 static sockcaps_t icmpv6_sockcaps(FAR struct socket *psock);
 static void       icmpv6_addref(FAR struct socket *psock);
-static int        icmpv6_getpeername(FAR struct socket *psock,
-                    FAR struct sockaddr *addr, FAR socklen_t *addrlen);
 static int        icmpv6_listen(FAR struct socket *psock, int backlog);
 static int        icmpv6_connect(FAR struct socket *psock,
                     FAR const struct sockaddr *addr, socklen_t addrlen);
@@ -70,7 +68,7 @@ const struct sock_intf_s g_icmpv6_sockif =
   icmpv6_addref,      /* si_addref */
   NULL,               /* si_bind */
   NULL,               /* si_getsockname */
-  icmpv6_getpeername, /* si_getpeername */
+  NULL,               /* si_getpeername */
   icmpv6_listen,      /* si_listen */
   icmpv6_connect,     /* si_connect */
   icmpv6_accept,      /* si_accept */
@@ -275,40 +273,6 @@ static int icmpv6_accept(FAR struct socket *psock, FAR struct sockaddr *addr,
   return -EAFNOSUPPORT;
 }
 
-/****************************************************************************
- * Name: icmpv6_getpeername
- *
- * Description:
- *   The icmpv6_getpeername() function retrieves the remote-connected name of
- *   the specified packet socket, stores this address in the sockaddr
- *   structure pointed to by the 'addr' argument, and stores the length of
- *   this address in the object pointed to by the 'addrlen' argument.
- *
- *   If the actual length of the address is greater than the length of the
- *   supplied sockaddr structure, the stored address will be truncated.
- *
- *   If the socket has not been bound to a local name, the value stored in
- *   the object pointed to by address is unspecified.
- *
- * Parameters:
- *   psock    Socket structure of the socket to be queried
- *   addr     sockaddr structure to receive data [out]
- *   addrlen  Length of sockaddr structure [in/out]
- *
- * Returned Value:
- *   On success, 0 is returned, the 'addr' argument points to the address
- *   of the socket, and the 'addrlen' argument points to the length of the
- *   address.  Otherwise, a negated errno value is returned.  See
- *   getpeername() for the list of appropriate error numbers.
- *
- ****************************************************************************/
-
-static int icmpv6_getpeername(FAR struct socket *psock,
-                           FAR struct sockaddr *addr, FAR socklen_t *addrlen)
-{
-  return -EAFNOSUPPORT;
-}
-
 /****************************************************************************
  * Name: icmpv6_listen
  *

net/pkt/pkt_sockif.c

@@ -52,8 +52,6 @@ static sockcaps_t pkt_sockcaps(FAR struct socket *psock);
 static void       pkt_addref(FAR struct socket *psock);
 static int        pkt_bind(FAR struct socket *psock,
                     FAR const struct sockaddr *addr, socklen_t addrlen);
-static int        pkt_getpeername(FAR struct socket *psock,
-                    FAR struct sockaddr *addr, FAR socklen_t *addrlen);
 static int        pkt_listen(FAR struct socket *psock, int backlog);
 static int        pkt_connect(FAR struct socket *psock,
                     FAR const struct sockaddr *addr, socklen_t addrlen);
@@ -75,7 +73,7 @@ const struct sock_intf_s g_pkt_sockif =
   pkt_addref,      /* si_addref */
   pkt_bind,        /* si_bind */
   NULL,            /* si_getsockname */
-  pkt_getpeername, /* si_getpeername */
+  NULL,            /* si_getpeername */
   pkt_listen,      /* si_listen */
   pkt_connect,     /* si_connect */
   pkt_accept,      /* si_accept */
@@ -370,40 +368,6 @@ static int pkt_bind(FAR struct socket *psock,
     }
 }
 
-/****************************************************************************
- * Name: pkt_getpeername
- *
- * Description:
- *   The pkt_getpeername() function retrieves the remote-connected name of
- *   the specified packet socket, stores this address in the sockaddr
- *   structure pointed to by the 'addr' argument, and stores the length of
- *   this address in the object pointed to by the 'addrlen' argument.
- *
- *   If the actual length of the address is greater than the length of the
- *   supplied sockaddr structure, the stored address will be truncated.
- *
- *   If the socket has not been bound to a local name, the value stored in
- *   the object pointed to by address is unspecified.
- *
- * Parameters:
- *   psock    Socket structure of the socket to be queried
- *   addr     sockaddr structure to receive data [out]
- *   addrlen  Length of sockaddr structure [in/out]
- *
- * Returned Value:
- *   On success, 0 is returned, the 'addr' argument points to the address
- *   of the socket, and the 'addrlen' argument points to the length of the
- *   address.  Otherwise, a negated errno value is returned.  See
- *   getpeername() for the list of appropriate error numbers.
- *
- ****************************************************************************/
-
-static int pkt_getpeername(FAR struct socket *psock,
-                           FAR struct sockaddr *addr, FAR socklen_t *addrlen)
-{
-  return -EAFNOSUPPORT;
-}
-
 /****************************************************************************
  * Name: pkt_listen
  *

net/socket/getpeername.c

@@ -98,7 +98,6 @@ int psock_getpeername(FAR struct socket *psock, FAR struct sockaddr *addr,
   /* Let the address family's send() method handle the operation */
 
   DEBUGASSERT(psock->s_sockif != NULL);
-
   if (psock->s_sockif->si_getpeername == NULL)
     {
       return -EOPNOTSUPP;