Nagios Support Forum

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A look at the CVS HEAD of the nagios plugins would find that
full AF-independent support is already available at this time.

Regards,
Jeremy

On Fri, Aug 08, 2003 at 04:36:38PM +0100, Colm MacCarthaigh wrote:
>=20
> I don't know if a patch exists already, but since the version of nagios
> plugins I downloaded today (1.3.1) doesnt support IPv6 I've patched=20
> plugins/netutils.c to be ipv6 compatible. Patch is attached
>=20
> This makes many of the check_ plugins for netsaint/nagios work with
> ipv6/v4 , it also handles things like round-robin DNS more properly.
>=20
> Please CC on any mails, I'm not on the list
>=20
> --=20
> Colm MacC?rthaigh / HEAnet, Teach Brooklawn, / Innealt?ir Ghr?as?in
> +353 1 6609040 / B?thar Shelbourne, B?C, IE / http://www.hea.net/

> diff -ru nagios-plugins-1.3.1/plugins/netutils.c nagios-plugins-1.3.1.hea=
net/plugins/netutils.c
> --- nagios-plugins-1.3.1/plugins/netutils.c Thu Feb 28 06:42:59 2002
> +++ nagios-plugins-1.3.1.heanet/plugins/netutils.c Fri Aug 8 16:28:22 20=
03
> @@ -48,8 +48,6 @@
> int my_udp_connect (char *, int, int *);
> int my_connect (char *, int, int *, char *);
> =20
> -int my_inet_aton (register const char *, struct in_addr *);
> -
> /* handles socket timeouts */
> void
> socket_timeout_alarm_handler (int sig)
> @@ -265,45 +263,53 @@
> int
> my_connect (char *host_name, int port, int *sd, char *proto)
> {
> - struct sockaddr_in servaddr;
> - struct hostent *hp;
> - struct protoent *ptrp;
> - int result;
> + struct addrinfo * res, hints;
> + char str_port[6];
> + int result;
> +
> + bzero ((char *) &hints, sizeof(hints));
> + hints.ai_family =3D PF_UNSPEC;
> + hints.ai_socktype =3D (!strcmp (proto, "udp")) ? SOCK_DGRAM : SOCK_STRE=
AM;
> + snprintf(str_port, sizeof(str_port), "%d", port);
> =20
> - bzero ((char *) &servaddr, sizeof (servaddr));
> - servaddr.sin_family =3D AF_INET;
> - servaddr.sin_port =3D htons (port);
> + /* map transport protocol name to protocol number */
> + if (getprotobyname (proto) =3D=3D NULL) {
> + printf ("Cannot map \"%s\" to protocol number\n", proto);
> + return STATE_UNKNOWN;
> + }
> =20
> /* try to bypass using a DNS lookup if this is just an IP address */
> - if (!my_inet_aton (host_name, &servaddr.sin_addr)) {
> -
> - /* else do a DNS lookup */
> - hp =3D gethostbyname ((const char *) host_name);
> - if (hp =3D=3D NULL) {
> + hints.ai_flags =3D AI_NUMERICHOST;
> + if ( getaddrinfo( host_name, str_port, &hints, &res ) + =09
> + hints.ai_flags =3D 0x0;
> + =09
> + if (getaddrinfo( host_name, str_port, &hints, &res) printf ("Invalid host name '%s'\n", host_name);
> return STATE_UNKNOWN;
> }
> -
> - memcpy (&servaddr.sin_addr, hp->h_addr, hp->h_length);
> - }
> -
> - /* map transport protocol name to protocol number */
> - if ((ptrp =3D getprotobyname (proto)) =3D=3D NULL) {
> - printf ("Cannot map \"%s\" to protocol number\n", proto);
> - return STATE_UNKNOWN;
> }
> =20
> /* create a socket */
> - *sd =3D
> - socket (PF_INET, (!strcmp (proto, "udp")) ? SOCK_DGRAM : SOCK_STREAM,
> - ptrp->p_proto);
> - if (*sd - printf ("Socket creation failed\n");
> - return STATE_UNKNOWN;
> - }
> + do {
> + *sd =3D socket (res->ai_family, res->ai_socktype, res->ai_protocol);
> +
> + if (*sd + printf ("Socket creation failed\n");
> + return STATE_UNKNOWN;
> + }
> +
> + /* open a connection */
> + if ( (result =3D connect (*sd, (struct sockaddr *) res->ai_addr,=20
> + res->ai_addrlen )) >=3D 0) {
> + /* Success */
> + break;
> + }
> +
> + res =3D res->ai_next;
> + } while (res);
> =20
> - /* open a connection */
> - result =3D connect (*sd, (struct sockaddr *) &servaddr, sizeof (servadd=
r));
> + /* None of the records matched */
> if (result switch (errno) {
> case ECONNREFUSED:
> @@ -323,109 +329,4 @@
> }
> =20
> return STATE_OK;
> -}
> -
> -
> -
> -/* This code was taken fro

...[email truncated]...


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