MQTTVersion.c File Reference

MQTTVersion - display the version and build information strings for a library. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/types.h>
#include <ctype.h>
#include "MQTTAsync.h"
#include <dlfcn.h>
#include <sys/mman.h>
#include <unistd.h>

Include dependency graph for MQTTVersion.c:

Go to the source code of this file.

Macros
#define	ARRAY_SIZE(a)   (sizeof(a) / sizeof(a[0]))

Typedefs
typedef MQTTAsync_nameValue *(*	func_type) (void)

Functions
char *	FindString (char *filename, const char *eyecatcher_input)
int	loadandcall (const char *libname)
int	main (int argc, char **argv)
void	printEyecatchers (char *filename)
int	printVersionInfo (MQTTAsync_nameValue *info)

Variables
static const char *	eyecatchers []
static const char *	libraries [] = {"paho-mqtt3c", "paho-mqtt3cs", "paho-mqtt3a", "paho-mqtt3as"}

Detailed Description

MQTTVersion - display the version and build information strings for a library.

With no arguments, we try to load and call the version string for the libraries we know about: mqttv3c, mqttv3cs, mqttv3a, mqttv3as. With an argument: 1) we try to load the named library, call getVersionInfo and display those values. 2) If that doesn't work, we look through the binary for eyecatchers, and display those. This will work if the library is not executable in the current environment.

Definition in file MQTTVersion.c.

Macro Definition Documentation

#define ARRAY_SIZE

(

a

)

(sizeof(a) / sizeof(a[0]))

Definition at line 172 of file MQTTVersion.c.

Typedef Documentation

typedef MQTTAsync_nameValue*(* func_type) (void)

Definition at line 134 of file MQTTVersion.c.

Function Documentation

char * FindString	(	char *	filename,
		const char *	eyecatcher_input
	)

Finds an eyecatcher in a binary file and returns the following value.

Parameters

filename	the name of the file
eyecatcher_input	the eyecatcher string to look for

Returns

the value found - "" if not found

Definition at line 73 of file MQTTVersion.c.

int loadandcall

(

const char *

libname

)

Definition at line 136 of file MQTTVersion.c.

int main	(	int	argc,
		char **	argv
	)

Definition at line 188 of file MQTTVersion.c.

void printEyecatchers

(

char *

filename

)

Definition at line 175 of file MQTTVersion.c.

int printVersionInfo

(

MQTTAsync_nameValue *

info

)

Definition at line 121 of file MQTTVersion.c.

Variable Documentation

const char* eyecatchers[]

static

Initial value:

= {"MQTTAsyncV3_Version", "MQTTAsyncV3_Timestamp",
                                         "MQTTClientV3_Version", "MQTTClientV3_Timestamp"}

Definition at line 57 of file MQTTVersion.c.

const char* libraries[] = {"paho-mqtt3c", "paho-mqtt3cs", "paho-mqtt3a", "paho-mqtt3as"}

static

Definition at line 56 of file MQTTVersion.c.