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MQTT C Client Libraries Internals
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Functions dealing with the MQTT protocol exchanges. More...
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "MQTTProtocolOut.h"
#include "StackTrace.h"
#include "Heap.h"
#include "WebSocket.h"
#include "Base64.h"
Functions | |
size_t | MQTTProtocol_addressPort (const char *uri, int *port, const char **topic, int default_port) |
Separates an address:port into two separate values. More... | |
void | MQTTProtocol_specialChars (char *p0, char *p1, b64_size_t *basic_auth_in_len) |
Allow user or password characters to be expressed in the form of XX, XX being the hexadecimal value of the character. More... | |
int | MQTTProtocol_setHTTPProxy (Clients *aClient, char *source, char **dest, char **auth_dest, char *prefix) |
int | MQTTProtocol_connect (const char *ip_address, Clients *aClient, int websocket, int MQTTVersion, MQTTProperties *connectProperties, MQTTProperties *willProperties) |
MQTT outgoing connect processing for a client. More... | |
int | MQTTProtocol_handlePingresps (void *pack, int sock) |
Process an incoming pingresp packet for a socket. More... | |
int | MQTTProtocol_subscribe (Clients *client, List *topics, List *qoss, int msgID, MQTTSubscribe_options *opts, MQTTProperties *props) |
MQTT outgoing subscribe processing for a client. More... | |
int | MQTTProtocol_handleSubacks (void *pack, int sock) |
Process an incoming suback packet for a socket. More... | |
int | MQTTProtocol_unsubscribe (Clients *client, List *topics, int msgID, MQTTProperties *props) |
MQTT outgoing unsubscribe processing for a client. More... | |
int | MQTTProtocol_handleUnsubacks (void *pack, int sock) |
Process an incoming unsuback packet for a socket. More... | |
Variables | |
ClientStates * | bstate |
Functions dealing with the MQTT protocol exchanges.
Some other related functions are in the MQTTProtocolClient module
size_t MQTTProtocol_addressPort | ( | const char * | uri, |
int * | port, | ||
const char ** | topic, | ||
int | default_port | ||
) |
Separates an address:port into two separate values.
[in] | uri | the input string - hostname:port |
[out] | port | the returned port integer |
[out] | topic | optional topic portion of the address starting with '/' |
int MQTTProtocol_connect | ( | const char * | ip_address, |
Clients * | aClient, | ||
int | websocket, | ||
int | MQTTVersion, | ||
MQTTProperties * | connectProperties, | ||
MQTTProperties * | willProperties | ||
) |
MQTT outgoing connect processing for a client.
ip_address | the TCP address:port to connect to |
aClient | a structure with all MQTT data needed |
int | ssl |
int | MQTTVersion the MQTT version to connect with (3 or 4) |
long | timeout how long to wait for a new socket to be created |
int MQTTProtocol_handlePingresps | ( | void * | pack, |
int | sock | ||
) |
Process an incoming pingresp packet for a socket.
pack | pointer to the publish packet |
sock | the socket on which the packet was received |
int MQTTProtocol_handleSubacks | ( | void * | pack, |
int | sock | ||
) |
Process an incoming suback packet for a socket.
pack | pointer to the publish packet |
sock | the socket on which the packet was received |
int MQTTProtocol_handleUnsubacks | ( | void * | pack, |
int | sock | ||
) |
Process an incoming unsuback packet for a socket.
pack | pointer to the publish packet |
sock | the socket on which the packet was received |
void MQTTProtocol_specialChars | ( | char * | p0, |
char * | p1, | ||
b64_size_t * | basic_auth_in_len | ||
) |
Allow user or password characters to be expressed in the form of XX, XX being the hexadecimal value of the character.
This will avoid problems when a user code or a password contains a '@' or another special character ('' included)
p0 | output string |
p1 | input string |
basic_auth_in_len |
int MQTTProtocol_subscribe | ( | Clients * | client, |
List * | topics, | ||
List * | qoss, | ||
int | msgID, | ||
MQTTSubscribe_options * | opts, | ||
MQTTProperties * | props | ||
) |
MQTT outgoing subscribe processing for a client.
client | the client structure |
topics | list of topics |
qoss | corresponding list of QoSs |
opts | MQTT 5.0 subscribe options |
props | MQTT 5.0 subscribe properties |
int MQTTProtocol_unsubscribe | ( | Clients * | client, |
List * | topics, | ||
int | msgID, | ||
MQTTProperties * | props | ||
) |
MQTT outgoing unsubscribe processing for a client.
client | the client structure |
topics | list of topics |