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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 |

1.8.17