Merge pull request #1737 from chenyong111/master

Add query and unregistered protocol family functions，format code

6 files changed, 47 insertions, 6 deletions

diff --git a/components/net/sal_socket/include/dfs_net/dfs_net.h b/components/net/sal_socket/include/dfs_net/dfs_net.h
index 2a21fe3858..242d3c5334 100644
--- a/components/net/sal_socket/include/dfs_net/dfs_net.h
+++ b/components/net/sal_socket/include/dfs_net/dfs_net.h
@@ -26,12 +26,12 @@
 #ifndef DFS_NET_H__
 #define DFS_NET_H__
 
+#include <dfs_file.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include <dfs_file.h>
-
 const struct dfs_file_ops* dfs_net_get_fops(void);
 int dfs_net_getsocket(int fd);
 
diff --git a/components/net/sal_socket/include/sal.h b/components/net/sal_socket/include/sal.h
index 8a9dd61b67..62ffaa303e 100644
--- a/components/net/sal_socket/include/sal.h
+++ b/components/net/sal_socket/include/sal.h
@@ -28,6 +28,10 @@
 #include <dfs_file.h>
 #include <rtdevice.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED)
 typedef uint32_t socklen_t;
 #endif
@@ -82,8 +86,9 @@ struct sal_socket
 
 struct proto_family
 {
-    int family;                        /* primary protocol families type*/
-    int sec_family;                    /* secondary protocol families type*/
+    char name[RT_NAME_MAX];
+    int family;                        /* primary protocol families type */
+    int sec_family;                    /* secondary protocol families type */
     int             (*create)(struct sal_socket *sal_socket, int type, int protocol);   /* register socket options */
 
     struct hostent* (*gethostbyname)  (const char *name);
@@ -92,10 +97,18 @@ struct proto_family
     int             (*getaddrinfo)    (const char *nodename, const char *servname, const struct addrinfo *hints, struct addrinfo **res);
 };
 
-/* SAL socket initialization */
+/* SAL(Socket Abstraction Layer) initialize */
 int sal_init(void);
 
-int sal_proto_family_register(const struct proto_family *pf);
 struct sal_socket *sal_get_socket(int sock);
 
+/* protocol family register and unregister operate */
+int sal_proto_family_register(const struct proto_family *pf);
+int sal_proto_family_unregister(const struct proto_family *pf);
+struct proto_family *sal_proto_family_find(const char *name);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* SAL_H__ */
diff --git a/components/net/sal_socket/include/sal_ipaddr.h b/components/net/sal_socket/include/sal_ipaddr.h
index 814d1d16e9..c40fc18374 100644
--- a/components/net/sal_socket/include/sal_ipaddr.h
+++ b/components/net/sal_socket/include/sal_ipaddr.h
@@ -26,6 +26,10 @@
 
 #include "sal_type.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** IPv4 only: set the IP address given as an u32_t */
 #define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32))
 /** IPv4 only: get the IP address as an u32_t */
diff --git a/components/net/sal_socket/include/sal_netdb.h b/components/net/sal_socket/include/sal_netdb.h
index 12f7abe6b7..0a31f26fae 100644
--- a/components/net/sal_socket/include/sal_netdb.h
+++ b/components/net/sal_socket/include/sal_netdb.h
@@ -26,6 +26,10 @@
 
 #include <sal_socket.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define EAI_NONAME      200
 #define EAI_SERVICE     201
 #define EAI_FAIL        202
@@ -88,4 +92,8 @@ int sal_getaddrinfo(const char *nodename,
        const struct addrinfo *hints,
        struct addrinfo **res);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* SAL_NETDB_H__ */
diff --git a/components/net/sal_socket/include/sal_socket.h b/components/net/sal_socket/include/sal_socket.h
index 872fd5ca95..477112392c 100644
--- a/components/net/sal_socket/include/sal_socket.h
+++ b/components/net/sal_socket/include/sal_socket.h
@@ -27,6 +27,10 @@
 
 #include "sal_ipaddr.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED)
 typedef uint32_t socklen_t;
 #endif
@@ -175,4 +179,8 @@ int sal_socket(int domain, int type, int protocol);
 int sal_closesocket(int socket);
 int sal_ioctlsocket(int socket, long cmd, void *arg);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* SAL_SOCKET_H__ */
diff --git a/components/net/sal_socket/include/sal_type.h b/components/net/sal_socket/include/sal_type.h
index 0446d5f4e1..907b3d02b4 100644
--- a/components/net/sal_socket/include/sal_type.h
+++ b/components/net/sal_socket/include/sal_type.h
@@ -28,6 +28,10 @@
 #include <stdlib.h>
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef int8_t    err_t;
 typedef uint8_t   u8_t;
 typedef int8_t    s8_t;
@@ -37,4 +41,8 @@ typedef uint32_t  u32_t;
 typedef int32_t   s32_t;
 typedef uintptr_t mem_ptr_t;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* SAL_TYPE_H__ */