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SocketAddress.h
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1 /*
2  * Copyright (c) 2015 ARM Limited
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 /** @file SocketAddress.h SocketAddress class */
18 /** \addtogroup netsocket
19  * @{*/
20 
21 #ifndef SOCKET_ADDRESS_H
22 #define SOCKET_ADDRESS_H
23 
24 #include "nsapi_types.h"
25 #include "mbed_toolchain.h"
26 
27 // Predeclared classes
28 class NetworkStack;
29 class NetworkInterface;
30 
31 /** SocketAddress class
32  *
33  * Representation of an IP address and port pair.
34  */
36 public:
37  /** Create a SocketAddress from a hostname and port
38  *
39  * The hostname may be either a domain name or an IP address. If the
40  * hostname is an IP address, no network transactions will be performed.
41  *
42  * On failure, the IP address and port will be set to zero
43  *
44  * @tparam S Type of the Network stack
45  * @param stack Network stack to use for DNS resolution
46  * @param host Hostname to resolve
47  * @param port Optional 16-bit port, defaults to 0
48  * @deprecated
49  * Constructors hide possible errors. Replaced by
50  * NetworkInterface::gethostbyname.
51  */
52  template <typename S>
53  MBED_DEPRECATED_SINCE("mbed-os-5.1.3",
54  "Constructors hide possible errors. Replaced by "
55  "NetworkInterface::gethostbyname.")
56  SocketAddress(S *stack, const char *host, uint16_t port = 0)
57  {
58  _SocketAddress(nsapi_create_stack(stack), host, port);
59  }
60 
61  /** Create a SocketAddress from a raw IP address and port
62  *
63  * @note To construct from a host name, use NetworkInterface::gethostbyname
64  *
65  * @param addr Raw IP address
66  * @param port Optional 16-bit port, defaults to 0
67  */
68  SocketAddress(nsapi_addr_t addr = nsapi_addr_t(), uint16_t port = 0);
69 
70  /** Create a SocketAddress from an IP address and port
71  *
72  * @param addr Null-terminated representation of the IP address
73  * @param port Optional 16-bit port, defaults to 0
74  */
75  SocketAddress(const char *addr, uint16_t port = 0);
76 
77  /** Create a SocketAddress from raw IP bytes, IP version, and port
78  *
79  * @param bytes Raw IP address in big-endian order
80  * @param version IP address version, NSAPI_IPv4 or NSAPI_IPv6
81  * @param port Optional 16-bit port, defaults to 0
82  */
83  SocketAddress(const void *bytes, nsapi_version_t version, uint16_t port = 0);
84 
85  /** Create a SocketAddress from another SocketAddress
86  *
87  * @param addr SocketAddress to copy
88  */
89  SocketAddress(const SocketAddress &addr);
90 
91  /** Destructor */
93 
94  /** Set the IP address
95  *
96  * @param addr Null-terminated represention of the IP address
97  * @return True if address is a valid representation of an IP address,
98  * otherwise False and SocketAddress is set to null
99  */
100  bool set_ip_address(const char *addr);
101 
102  /** Set the raw IP bytes and IP version
103  *
104  * @param bytes Raw IP address in big-endian order
105  * @param version IP address version, NSAPI_IPv4 or NSAPI_IPv6
106  */
107  void set_ip_bytes(const void *bytes, nsapi_version_t version);
108 
109  /** Set the raw IP address
110  *
111  * @param addr Raw IP address
112  */
113  void set_addr(nsapi_addr_t addr);
114 
115  /** Set the port
116  *
117  * @param port 16-bit port
118  */
119  void set_port(uint16_t port);
120 
121  /** Get the human-readable IP address
122  *
123  * Allocates memory for a string and converts binary address to
124  * human-readable format. String is freed in the destructor.
125  *
126  * @return Null-terminated representation of the IP Address
127  */
128  const char *get_ip_address() const;
129 
130  /** Get the raw IP bytes
131  *
132  * @return Raw IP address in big-endian order
133  */
134  const void *get_ip_bytes() const;
135 
136  /** Get the IP address version
137  *
138  * @return IP address version, NSAPI_IPv4 or NSAPI_IPv6
139  */
140  nsapi_version_t get_ip_version() const;
141 
142  /** Get the raw IP address
143  *
144  * @return Raw IP address
145  */
146  nsapi_addr_t get_addr() const;
147 
148  /** Get the port
149  *
150  * @return The 16-bit port
151  */
152  uint16_t get_port() const;
153 
154  /** Test if address is zero
155  *
156  * @return True if address is not zero
157  */
158  operator bool() const;
159 
160  /** Copy address from another SocketAddress
161  *
162  * @param addr SocketAddress to copy
163  */
164  SocketAddress &operator=(const SocketAddress &addr);
165 
166  /** Compare two addresses for equality
167  *
168  * @return True if both addresses are equal
169  */
170  friend bool operator==(const SocketAddress &a, const SocketAddress &b);
171 
172  /** Compare two addresses for equality
173  *
174  * @return True if both addresses are not equal
175  */
176  friend bool operator!=(const SocketAddress &a, const SocketAddress &b);
177 
178 private:
179  void _SocketAddress(NetworkStack *iface, const char *host, uint16_t port);
180 
181  /** Initialize memory */
182  void mem_init(void);
183 
184  mutable char *_ip_address;
185  nsapi_addr_t _addr;
186  uint16_t _port;
187 };
188 
189 
190 #endif
191 
192 /** @}*/
NetworkStack * nsapi_create_stack(nsapi_stack_t *stack)
Convert a raw nsapi_stack_t object into a C++ NetworkStack object.
friend bool operator==(const SocketAddress &a, const SocketAddress &b)
Compare two addresses for equality.
NetworkStack class.
Definition: NetworkStack.h:40
friend bool operator!=(const SocketAddress &a, const SocketAddress &b)
Compare two addresses for equality.
void set_addr(nsapi_addr_t addr)
Set the raw IP address.
bool set_ip_address(const char *addr)
Set the IP address.
~SocketAddress()
Destructor.
void set_ip_bytes(const void *bytes, nsapi_version_t version)
Set the raw IP bytes and IP version.
const char * get_ip_address() const
Get the human-readable IP address.
void set_port(uint16_t port)
Set the port.
struct nsapi_addr nsapi_addr_t
IP address structure for passing IP addresses by value.
SocketAddress & operator=(const SocketAddress &addr)
Copy address from another SocketAddress.
nsapi_version_t get_ip_version() const
Get the IP address version.
SocketAddress class.
Definition: SocketAddress.h:35
Common interface that is shared between network devices.
uint16_t get_port() const
Get the port.
IP address structure for passing IP addresses by value.
Definition: nsapi_types.h:188
nsapi_addr_t get_addr() const
Get the raw IP address.
SocketAddress(S *stack, const char *host, uint16_t port=0)
Create a SocketAddress from a hostname and port.
Definition: SocketAddress.h:56
const void * get_ip_bytes() const
Get the raw IP bytes.
#define MBED_DEPRECATED_SINCE(D, M)
MBED_DEPRECATED("message string") Mark a function declaration as deprecated, if it used then a warnin...
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