addrsyntax.c File Reference

check syntax of email addresses and SMTP helos More...

#include <qsmtpd/addrparse.h>
#include <qdns.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>

Functions
static int	parselocalpart (const char *const addr)
static int	parseaddr (const char *addr)
int	checkaddr (const char *const addr)
int	addrspec_valid (const char *const addr)
int	addrsyntax (char *in, const int flags, string *addr, char **more)
	check an email address for syntax errors More...

Detailed Description

check syntax of email addresses and SMTP helos

Function Documentation

int addrspec_valid

(

const char *const

addr

)

check if the given string is a valid addr-spec

Parameters

addr	string to check

Returns

if string is valid addrspec

Return values

0	string is invalid
1	string is valid

int addrsyntax	(	char *	in,
		const int	flags,
		string *	addr,
		char **	more
	)

check an email address for syntax errors

Parameters

in	address to parse
flags	0: mail from checks, 1: rcpt to checks (e.g. source route is allowed), 2: checks for badmailfrom/goodmailfrom lists
addr	struct string to contain the address (memory will be malloced)
more	here starts the data behind the first '>' behind the first '<' (or NULL if none)

Returns

>0 on success

Return values

1	address is empty (only possible if flags is 0)
3	address is a full email address
4	address is a full email address with IPv4 or IPv6 address literal
0	in is invalid
-1	an error occured (e.g. ENOMEM)

int checkaddr

(

const char *const

addr

)

check an email address for validity, use as loadlistfd callback

Parameters

addr	the address to check

Returns

if address valid

Return values

0	address is valid
1	address is invalid

This is just !parseaddr(addr). This allows this to be used as callback.

static int parseaddr ( const char *  addr )

static

check type and correctness of mail address

Parameters

addr	address to check

Returns

status code indicating what type of address was found

Return values

0	address invalid
1	address only contains a domain name
2	address contains @domain
3	address is a full email address
4	address is a full email address with IPv4 or IPv6 address literal

static int parselocalpart ( const char *const  addr )

static

check syntax correctness of local part

Parameters

addr	address to check

Returns

-1 on syntax error, length of localpart otherwise. If no '@' in addr, length of addr

Return values

-1	syntax error in localpart