spfdnsip.c File Reference

#include <unistd.h>
#include "stralloc.h"
#include "alloc.h"
#include "ip.h"
#include "ipalloc.h"
#include "ipme.h"
#include "str.h"
#include "fmt.h"
#include "scan.h"
#include "byte.h"
#include "now.h"
#include "dns.h"
#include "case.h"
#include "spf.h"

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Functions
int	match_ip4 (unsigned char ip1[4], int prefix, char ip2[4])
	match_ip compares IPv4/IPv6 addreses up to prefix length
int	match_ip6 (unsigned char ip1[16], int prefix, char ip2[16])
int	get_prefix (char *prefix)
	get_prefix return integer value of prefix length
int	spf_records (stralloc *spfrec, stralloc *domain)
	spf_records get TXT records for domain and extract SPF information
int	spf_a (char *spfspec, char *prefix)
	spf_a (a; a:fqdns; a:fqdns/56) compares A + AAAA records for SPF info and client host
int	spf_mx (char *spfspec, char *prefix)
	spf_mx (mx; mx:domain; mx:domain/24) compares MX records for SPF info and client host
int	spf_ptr (char *spfspec, char *prefix)
	spf_ptr (ptr; ptr:fqdn) compares PTR records from SPF info and client host
int	spf_ip4 (char *spfspec, char *prefix)
	spf_ip4 (ip4; ip4:fqdn; ip4:fqdn/24) compares A records for SPF info and client host
int	spf_ip6 (char *spfspec, char *prefix)
	spf_ip6 (ip6; ip6:fqdn; ip6:fqdn/56) compares AAAA records for SPF info and client host
int	spf_exists (char *spfspec, char *prefix)
	spf_exists (exists; exists:fqdn) simply looks for a A records only for SPF info and client host

Variables
stralloc	dnsname
char	ip4remote [4]
char	ip6remote [16]
int	flagip6

Function Documentation

get_prefix()

int get_prefix

(

char *

prefix

)

get_prefix return integer value of prefix length

Parameters

input

pointer to prefix

Returns

(int) length of prefix

Definition at line 65 of file spfdnsip.c.

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match_ip4()

int match_ip4	(	unsigned char	ip1[4],
		int	prefix,
		char	ip2[4] )

match_ip compares IPv4/IPv6 addreses up to prefix length

Parameters

input

ip_address1,prefix length, ip_address2

Returns

1 ok; 0 failure

Definition at line 30 of file spfdnsip.c.

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match_ip6()

int match_ip6	(	unsigned char	ip1[16],
		int	prefix,
		char	ip2[16] )

Definition at line 44 of file spfdnsip.c.

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spf_a()

int spf_a	(	char *	spfspec,
		char *	prefix )

spf_a (a; a:fqdns; a:fqdns/56) compares A + AAAA records for SPF info and client host

Parameters

input

pointer to spfspecification, pointer to prefix

Returns

SPF_OK, SPF_NONE; SPF_DNSSOFT, SPF_NOMEM

Definition at line 145 of file spfdnsip.c.

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spf_exists()

int spf_exists	(	char *	spfspec,
		char *	prefix )

spf_exists (exists; exists:fqdn) simply looks for a A records only for SPF info and client host

Parameters

input

pointer to spfspecification, prefix not used

Returns

SPF_OK, SPF_NONE; SPF_DNSSOFT, SPF_NOMEM

Definition at line 391 of file spfdnsip.c.

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spf_ip4()

int spf_ip4	(	char *	spfspec,
		char *	prefix )

spf_ip4 (ip4; ip4:fqdn; ip4:fqdn/24) compares A records for SPF info and client host

Parameters

input

pointer to spfspecification, pointer to prefix

Returns

SPF_OK, SPF_NONE; SPF_DNSSOFT, SPF_NOMEM

Definition at line 345 of file spfdnsip.c.

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spf_ip6()

int spf_ip6	(	char *	spfspec,
		char *	prefix )

spf_ip6 (ip6; ip6:fqdn; ip6:fqdn/56) compares AAAA records for SPF info and client host

Parameters

input

pointer to spfspecification, pointer to prefix

Returns

SPF_OK, SPF_NONE; SPF_DNSSOFT, SPF_NOMEM

Definition at line 368 of file spfdnsip.c.

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spf_mx()

int spf_mx	(	char *	spfspec,
		char *	prefix )

spf_mx (mx; mx:domain; mx:domain/24) compares MX records for SPF info and client host

Parameters

input

pointer to spfspecification, pointer to prefix

Returns

SPF_OK, SPF_NONE; SPF_DNSSOFT, SPF_NOMEM

Definition at line 192 of file spfdnsip.c.

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spf_ptr()

int spf_ptr	(	char *	spfspec,
		char *	prefix )

spf_ptr (ptr; ptr:fqdn) compares PTR records from SPF info and client host

Parameters

input

pointer to spfspecification; prefix not used

Returns

SPF_OK, SPF_NONE; SPF_DNSSOFT, SPF_NOMEM

Definition at line 235 of file spfdnsip.c.

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spf_records()

int spf_records	(	stralloc *	spfrec,
		stralloc *	domain )

spf_records get TXT records for domain and extract SPF information

Parameters

input

pointer stralloc domain output: pointer to stralloc spf records

Returns

SPF_OK, SPF_NONE; SPF_MULTIRR, SPF_DNSSOFT, SPF_NOMEM

Definition at line 93 of file spfdnsip.c.

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Variable Documentation

dnsname

stralloc dnsname

extern

Definition at line 27 of file spf.c.

flagip6

int flagip6

extern

Definition at line 32 of file spf.c.

ip4remote

char ip4remote[4]

extern

Definition at line 38 of file spf.c.

ip6remote

char ip6remote[16]

extern

Definition at line 39 of file spf.c.