getdata.c File Reference

Functions to read data from dhcpd.conf and dhcdp.leases files. More...

#include <config.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include "error.h"
#include "xalloc.h"
#include "dhcpd-pools.h"

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Enumerations
enum	dhcpd_magic_numbers { MAXLEN = 1024 }
	MAXLEN is maximum expected line length in dhcpd.conf and dhcpd.leases. More...
enum	isc_conf_parser {   ITS_NOTHING_INTERESTING, ITS_A_RANGE_FIRST_IP, ITS_A_RANGE_SECOND_IP, ITS_A_SHAREDNET,   ITS_AN_INCLUDE, ITS_A_SUBNET, ITS_A_NETMASK }
	Configuration file parsing state flags. More...

Functions
int	parse_leases (struct conf_t *state, const int print_mac_addreses)
	Lease file parser. More...
static int	is_interesting_config_clause (struct conf_t *state, char const *restrict s)
	Keyword search in dhcpd.conf file. More...
static void	reorder_last_first (struct range_t *range_p)
	Flip first and last IP in range if they are in unusual order. More...
void	parse_config (struct conf_t *state, const int is_include, const char *restrict config_file, struct shared_network_t *restrict shared_p)
	The dhcpd.conf file parser. More...

Detailed Description

Functions to read data from dhcpd.conf and dhcdp.leases files.

Enumeration Type Documentation

dhcpd_magic_numbers

enum dhcpd_magic_numbers

MAXLEN is maximum expected line length in dhcpd.conf and dhcpd.leases.

Enumerator
MAXLEN

isc_conf_parser

enum isc_conf_parser

Configuration file parsing state flags.

The is_interesting_config_clause() will return one of these to parse_config().

Enumerator
ITS_NOTHING_INTERESTING
ITS_A_RANGE_FIRST_IP
ITS_A_RANGE_SECOND_IP
ITS_A_SHAREDNET
ITS_AN_INCLUDE
ITS_A_SUBNET
ITS_A_NETMASK

Function Documentation

is_interesting_config_clause()

static int is_interesting_config_clause ( struct conf_t *  state, char const *restrict  s  )

static

Keyword search in dhcpd.conf file.

Parameters

s	A line from the dhcpd.conf file.

Returns

Indicator what configuration was found.

Referenced by parse_config().

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parse_config()

void parse_config	(	struct conf_t *	state,
		const int	is_include,
		const char *restrict	config_file,
		struct shared_network_t *restrict	shared_p
	)

The dhcpd.conf file parser.

FIXME: This spaghetti monster function needs to be rewrote at least ones more.

Referenced by main().

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parse_leases()

int parse_leases	(	struct conf_t *	state,
		const int	print_mac_addreses
	)

Lease file parser.

The parser can only read ISC DHCPD dhcpd.leases file format.

Referenced by main().

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reorder_last_first()

static void reorder_last_first ( struct range_t *  range_p )

static

Flip first and last IP in range if they are in unusual order.

Referenced by parse_config().