6b6ac9438f
package does have BXA export approval, but the licensing strings on the dnssafe code are a bit unpleasant. The crypto is easy to restore and bind will run without it - just without full dnssec support. Obtained from: The Internet Software Consortium (www.isc.org)
376 lines
6.7 KiB
C
376 lines
6.7 KiB
C
/*
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* Portions Copyright (c) 1996,1998 by Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static const char rcsid[] = "$Id: irp_nw.c,v 8.1 1999/01/18 07:46:54 vixie Exp $";
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#endif /* LIBC_SCCS and not lint */
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#if 0
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#endif
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/* Imports */
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#include "port_before.h"
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#include <syslog.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <arpa/nameser.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <resolv.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <syslog.h>
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#include <irs.h>
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#include <irp.h>
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#include <isc/irpmarshall.h>
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#include <isc/memcluster.h>
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#include <isc/misc.h>
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#include "irs_p.h"
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#include "lcl_p.h"
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#include "irp_p.h"
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#include "port_after.h"
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#define MAXALIASES 35
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#define MAXADDRSIZE 4
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struct pvt {
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struct irp_p *girpdata;
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int warned;
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struct nwent net;
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};
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/* Forward */
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static void nw_close(struct irs_nw *);
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static struct nwent * nw_byname(struct irs_nw *, const char *, int);
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static struct nwent * nw_byaddr(struct irs_nw *, void *, int, int);
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static struct nwent * nw_next(struct irs_nw *);
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static void nw_rewind(struct irs_nw *);
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static void nw_minimize(struct irs_nw *);
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static void free_nw(struct nwent *nw);
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/* Public */
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/*
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* struct irs_nw * irs_irp_nw(struct irs_acc *this)
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*
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*/
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struct irs_nw *
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irs_irp_nw(struct irs_acc *this) {
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struct irs_nw *nw;
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struct pvt *pvt;
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if (!(pvt = memget(sizeof *pvt))) {
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errno = ENOMEM;
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return (NULL);
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}
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memset(pvt, 0, sizeof *pvt);
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if (!(nw = memget(sizeof *nw))) {
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memput(pvt, sizeof *pvt);
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errno = ENOMEM;
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return (NULL);
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}
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memset(nw, 0x0, sizeof *nw);
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pvt->girpdata = this->private;
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nw->private = pvt;
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nw->close = nw_close;
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nw->byname = nw_byname;
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nw->byaddr = nw_byaddr;
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nw->next = nw_next;
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nw->rewind = nw_rewind;
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nw->minimize = nw_minimize;
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return (nw);
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}
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/* Methods */
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/*
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* void nw_close(struct irs_nw *this)
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*
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*/
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static void
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nw_close(struct irs_nw *this) {
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struct pvt *pvt = (struct pvt *)this->private;
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nw_minimize(this);
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free_nw(&pvt->net);
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memput(pvt, sizeof *pvt);
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memput(this, sizeof *this);
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}
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/*
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* struct nwent * nw_byaddr(struct irs_nw *this, void *net,
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* int length, int type)
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*
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*/
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static struct nwent *
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nw_byaddr(struct irs_nw *this, void *net, int length, int type) {
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struct pvt *pvt = (struct pvt *)this->private;
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struct nwent *nw = &pvt->net;
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char *body = NULL;
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size_t bodylen;
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int code;
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char paddr[24]; /* bigenough for ip4 w/ cidr spec. */
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char text[256];
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if (inet_net_ntop(type, net, length, paddr, sizeof paddr) == NULL) {
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return (NULL);
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}
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if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
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return (NULL);
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}
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if (irs_irp_send_command(pvt->girpdata, "getnetbyaddr %s %s",
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paddr, ADDR_T_STR(type)) != 0)
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return (NULL);
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if (irs_irp_get_full_response(pvt->girpdata, &code,
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text, sizeof text,
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&body, &bodylen) != 0) {
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return (NULL);
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}
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if (code == IRPD_GETNET_OK) {
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free_nw(nw);
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if (irp_unmarshall_nw(nw, body) != 0) {
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nw = NULL;
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}
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} else {
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nw = NULL;
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}
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if (body != NULL) {
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memput(body, bodylen);
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}
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return (nw);
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}
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/*
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* struct nwent * nw_byname(struct irs_nw *this, const char *name, int type)
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*
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*/
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static struct nwent *
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nw_byname(struct irs_nw *this, const char *name, int type) {
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struct pvt *pvt = (struct pvt *)this->private;
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struct nwent *nw = &pvt->net;
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char *body = NULL;
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size_t bodylen;
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int code;
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char text[256];
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if (nw->n_name != NULL &&
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strcmp(name, nw->n_name) == 0 &&
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nw->n_addrtype == type) {
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return (nw);
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}
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if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
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return (NULL);
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}
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if (irs_irp_send_command(pvt->girpdata, "getnetbyname %s", name) != 0)
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return (NULL);
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if (irs_irp_get_full_response(pvt->girpdata, &code,
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text, sizeof text,
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&body, &bodylen) != 0) {
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return (NULL);
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}
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if (code == IRPD_GETNET_OK) {
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free_nw(nw);
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if (irp_unmarshall_nw(nw, body) != 0) {
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nw = NULL;
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}
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} else {
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nw = NULL;
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}
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if (body != NULL) {
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memput(body, bodylen);
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}
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return (nw);
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}
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/*
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* void nw_rewind(struct irs_nw *this)
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*
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*/
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static void
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nw_rewind(struct irs_nw *this) {
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struct pvt *pvt = (struct pvt *)this->private;
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char text[256];
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int code;
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if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
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return;
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}
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if (irs_irp_send_command(pvt->girpdata, "setnetent") != 0) {
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return;
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}
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code = irs_irp_read_response(pvt->girpdata, text, sizeof text);
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if (code != IRPD_GETNET_SETOK) {
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if (irp_log_errors) {
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syslog(LOG_WARNING, "setnetent failed: %s", text);
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}
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}
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return;
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}
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/*
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* struct nwent * nw_next(struct irs_nw *this)
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*
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* Notes:
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*
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* Prepares the cache if necessary and returns the first, or
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* next item from it.
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*/
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static struct nwent *
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nw_next(struct irs_nw *this) {
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struct pvt *pvt = (struct pvt *)this->private;
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struct nwent *nw = &pvt->net;
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char *body;
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size_t bodylen;
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int code;
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char text[256];
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if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
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return (NULL);
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}
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if (irs_irp_send_command(pvt->girpdata, "getnetent") != 0) {
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return (NULL);
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}
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if (irs_irp_get_full_response(pvt->girpdata, &code,
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text, sizeof text,
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&body, &bodylen) != 0) {
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return (NULL);
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}
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if (code == IRPD_GETNET_OK) {
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free_nw(nw);
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if (irp_unmarshall_nw(nw, body) != 0) {
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nw = NULL;
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}
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} else {
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nw = NULL;
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}
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return (nw);
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}
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/*
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* void nw_minimize(struct irs_nw *this)
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*
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*/
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static void
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nw_minimize(struct irs_nw *this) {
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struct pvt *pvt = (struct pvt *)this->private;
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irs_irp_disconnect(pvt->girpdata);
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}
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/* private. */
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/*
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* static void free_passwd(struct passwd *pw);
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*
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* deallocate all the memory irp_unmarshall_pw allocated.
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*
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*/
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static void
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free_nw(struct nwent *nw) {
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char **p;
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if (nw == NULL)
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return;
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if (nw->n_name != NULL)
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free(nw->n_name);
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if (nw->n_aliases != NULL) {
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for (p = nw->n_aliases ; *p != NULL ; p++) {
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free(*p);
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}
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free(nw->n_aliases);
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}
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if (nw->n_addr != NULL)
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free(nw->n_addr);
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}
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