sockaddr_ptoa.c File Reference

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Detailed Description

For internal use only.

brief Implementation of sockaddr_ptoa().

This file contains the implementation of the sockaddr_ptoa() function.

Definition in file sockaddr_ptoa.c.

#include "event_int.h"
#include <string.h>

Include dependency graph for sockaddr_ptoa.c:

Go to the source code of this file.

Data Structures
struct	partaddr
	Parse state. More...
Defines
#define	VALMASK
	Mask to retrieve character value.
#define	DIGIT
	Character is a digit.
#define	XDIGIT
	Character is a hexadecimal digit.
#define	COLON
	Character is a colon.
#define	PERIOD
	Character is a period.
#define	TYPEMASK
	Character type mask.
#define	ctype(c)
	Obtain character type.
#define	cval(c)
	Obtain character value.
#define	_bcd(num, digit)
	Obtain specified digit.
#define	bcd(num)
	Convert a BCD number to an ordinary integer.
#define	bcd_isquad(num)
	Test a BCD number for IPv4 quad constraints.
#define	hex_accum(accum, c)
	Add another digit to a hexadecimal (or BCD) number.
#define	dec_accum(accum, c)
	Add another digit to a decimal number.
#define	partaddr_init(pa, res)
	Initialize a struct partaddr.
#define	accumulate(pa, accum)
	Accumulate an address part.
#define	test_v6(pa)
	Test if an address is a fully specified IPv6 address.
Functions
ev_err_t	sockaddr_ptoa (ev_sockaddr_t *sa, const char *address, int alen)
	Fill an ev_sockaddr_t from a presentation format.
Variables
static unsigned char	cmap []
	Mapping of characters to type and value.

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Define Documentation

#define _bcd (  num, digit   )

For internal use only. This macro retrieves the specified digit--counting from zero--of a hexadecimal or binary-coded-decimal number. Parameters: [in]  num  The number to obtain the digit of. [in]  digit  The digit, counted from zero, to obtain. Returns: The value of the digit specified. Definition at line 158 of file sockaddr_ptoa.c.

#define accumulate (  pa, accum   )

For internal use only. This macro accumulates a given value onto a partial address in a struct partaddr. Parameters: [in]  pa  A pointer to a struct partaddr. [in]  accum  The 16-bit value to be accumulated onto the partial address. Definition at line 283 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define bcd (  num   )

For internal use only. This macro takes the num, which is assumed to be a binary-coded-decimal number, and converts it to an ordinary integer. Warning: This macro evaluates the num parameter multiple times. Parameters: [in]  num  The number to convert from BCD. Returns: The value of num converted to an ordinary integer. Definition at line 173 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define bcd_isquad (  num   )

For internal use only. This macro tests the num to determine whether it is a valid IPv4 quad (i.e., less than 255). Warning: This macro evaluates the num parameter multiple times. Parameters: [in]  num  The number to test. Returns: Boolean true if num contains a valid IPv4 quad, false otherwise. Definition at line 191 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define COLON

For internal use only. This type value, when set in the cmap character map entry for a character, indicates that the character plays the part of the colon in an IPv6 address. Definition at line 69 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define ctype (  c   )

For internal use only. This macro retrieves the type of the character c. Parameters: [in]  c  The character to retrieve the type of. Return values: DIGIT  The character is a numeric digit. XDIGIT  The character is an alphabetic hexadecimal digit. COLON  The character is a colon. PERIOD  The character is a period. Definition at line 103 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define cval (  c   )

For internal use only. This macro retrieves the value of the given decimal or hexadecimal character. Parameters: [in]  c  The character to retrieve the value of. Returns: The value of the character c. Definition at line 116 of file sockaddr_ptoa.c.

#define dec_accum (  accum, c   )

For internal use only. This macro is used to add another digit to the accum accumulator. The number in accum is assumed to be a decimal number. Warning: This macro evaluates the accum parameter multiple times. Parameters: [in]  accum  The accumulator containing the number. [in]  c  The character to be added to the accumulator. Note that this is a character value, which will be converted by cval() to an actual numerical value. Definition at line 232 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define DIGIT

For internal use only. This type value, when set in the cmap character map entry for a character, indicates that the character is a decimal (or hexadecimal) digit. The value may be obtained by ANDing the cmap entry with VALMASK. Definition at line 50 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define hex_accum (  accum, c   )

For internal use only. This macro is used to add another digit to the accum accumulator. The number in accum is assumed to be a hexadecimal or BCD number. Warning: This macro evaluates the accum parameter multiple times. Parameters: [in]  accum  The accumulator containing the number. [in]  c  The character to be added to the accumulator. Note that this is a character value, which will be converted by cval() to an actual numerical value. Definition at line 212 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define partaddr_init (  pa, res   )

For internal use only. This macro initializes pa given the address of the ev_sockaddr_t to be filled in. Parameters: [in]  pa  A pointer to a struct partaddr to be initialized. [in]  res  A pointer to the ev_sockaddr_t to be filled in. Definition at line 260 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define PERIOD

For internal use only. This type value, when set in the cmap character map entry for a character, indicates that the character plays the part of the period in an IPv4 address, or plays the part of the port separator character. Definition at line 79 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define test_v6 (  pa   )

For internal use only. This macro will check to see if an address is a fully specified IPv6 address, returning an error to the function caller if it is not. Parameters: [in]  pa  A pointer to a struct partaddr to test. Definition at line 305 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

#define TYPEMASK

For internal use only. This mask may be ANDed with the cmap character map entry to obtain the character type. Definition at line 87 of file sockaddr_ptoa.c.

#define VALMASK

For internal use only. This mask may be ANDed with the value associated with a character in cmap in order to obtain the value of that character--for conversion of decimal and hexadecimal numbers. Definition at line 40 of file sockaddr_ptoa.c.

#define XDIGIT

For internal use only. This type value, when set in the cmap character map entry for a character, indicates that the character is a alphabetic hexadecimal digit (i.e., a-fA-F). The value may be obtained by ANDing the cmap entry with VALMASK. Definition at line 60 of file sockaddr_ptoa.c. Referenced by sockaddr_ptoa().

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Variable Documentation

unsigned char cmap[] [static]

For internal use only. This variable maps character values to character type and value. Definition at line 123 of file sockaddr_ptoa.c.

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