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Man Pages


Manual Reference Pages  -  FIREDNS_DNSBL_LOOKUP (3)

NAME

firedns_dnsbl_lookup - Create a query to look up an IP in a DNS-based blacklist

CONTENTS

Synopsis
Description
Return Value
Author
See Also

SYNOPSIS

#include <firedns.h>
-lfiredns

int firedns_dnsbl_lookup(const struct in_addr *ip, const char * const name)

DESCRIPTION

firedns_dnsbl_lookup() creates and sends a request to resolve the TXT record of the entry of ip in the DNS-based blacklist name. It returns a file descriptor that should be select(2)’ed upon (read set). When the file descriptor shows ready for reading call firedns_getresult(3) to retrieve the results. The result will be a char * with the message from the listing server, or NULL if the IP address is not listed.

RETURN VALUE

Returns an integer file descriptor that can be used the same as any other file descriptor. Returns -1 on error.

AUTHOR

Ian Gulliver <ian@penguinhosting.net>

SEE ALSO

libfiredns(3), firedns_getresult(3), select(2)
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--> FIREDNS_DNSBL_LOOKUP (3) 2002-03-31

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