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Man Pages


Manual Reference Pages  -  FIREDNS_RESOLVEMXALIST (3)

NAME

firedns_resolvemxalist - Resolve a list of MX records of a hostname and their corresponding A records

CONTENTS

Synopsis
Description
Return Value
Author
See Also

SYNOPSIS

#include <firedns.h>
-lfiredns

struct firedns_mxlist *firedns_resolvemxalist(const char * const name)

DESCRIPTION

firedns_resolvemxalist() attempts to resolve a list of MX records for the hostname name. If it fails, it treats the host as having a priority 0 MX record, and attempts to resolve a list of A and AAAA records for the hostname. If the MX record lookup succeeds, it looks up the list of A and AAAA records for each MX record in parallel. It also checks for RFC-violating CNAMEs for each MX record.

RETURN VALUE

Returns a pointer to an internal static struct firedns_mxlist *. This structure is the first of a linked list. It contains:

        char *name;
        char *cname;
        struct firedns_ip4list *ip4list;
        struct firedns_ip6list *ip6list;
        unsigned int protocol; (FIREDNS_MX_SMTP or FIREDNS_MX_QMTP)
        unsigned int priority;
        struct firedns_mxlist *next;

This function returns NULL on error.

Any result return by this function should be freed with firedns_free_mxalist(3).

AUTHOR

Ian Gulliver <ian@penguinhosting.net>

SEE ALSO

libfiredns(3)
firedns_free_mxalist(3)
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--> FIREDNS_RESOLVEMXALIST (3) 2004-02-12

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