lnag-utils.h File Reference

libnagios helper and compatibility macros that lack a "real" home. More...

#include <unistd.h>
#include <stdlib.h>

Go to the source code of this file.

Macros
#define	NAGIOS_MKVERSION(a, b, c)
#define	NAGIOS_BEGIN_DECL   /* nothing */
	C++ compatibility macro that avoids confusing indentation programs.
#define	NAGIOS_END_DECL   /* more of nothing */
	C++ compatibility macro that avoid confusing indentation programs.
#define	NAGIOS_DEPRECATED(version, hint)
#define	OK   0
	Indicates successful function call in Nagios.
#define	ERROR   -2
	Non-successful function call in Nagios.
#define	FALSE   0
	Not true.
#define	TRUE   (!FALSE)
	Not false.
#define	my_free(ptr)
	Useful macro to safely avoid double-free memory corruption.
#define	ARRAY_SIZE(x)
	Useful for iterating over all elements in a static array.
#define	veclen   ARRAY_SIZE
	useful for iterating over all elements in a static array
#define	offsetof(t, f)
	standard offsetof macro
#define	CHAR_MAP_INIT(k)
	character map initialization for .bss-allocated char maps

Detailed Description

libnagios helper and compatibility macros that lack a "real" home.

This is the home of random macros that must be present for compilation to succeed but are missing on some platforms.

Macro Definition Documentation

ARRAY_SIZE

#define ARRAY_SIZE

(

x

)

Value:

(sizeof(x) / sizeof(x[0]))

Useful for iterating over all elements in a static array.

CHAR_MAP_INIT

#define CHAR_MAP_INIT

(

k

)

Value:

    { \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, k, \
    }

character map initialization for .bss-allocated char maps

my_free

#define my_free

(

ptr

)

Value:

do { if(ptr) { free(ptr); ptr = NULL; } } while(0)

Useful macro to safely avoid double-free memory corruption.

NAGIOS_DEPRECATED

#define NAGIOS_DEPRECATED	(		version,
			hint )

Value:

    __attribute__((deprecated("This function will be removed in Nagios v" #version ". Please use " #hint " instead")))

NAGIOS_MKVERSION

#define NAGIOS_MKVERSION	(		a,
			b,
			c )

Value:

    (((a) * 10000) + ((b) * 100) + (c))

offsetof

#define offsetof	(		t,
			f )

Value:

((unsigned long)&((t *)0)->f)

standard offsetof macro