2 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (c) 1996,1999 by Internet Software Consortium.
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
15 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #if !defined(LINT) && !defined(CODECENTER)
19 static const char rcsid[] = "$Id: gen_ng.c,v 1.2.18.1 2005/04/27 05:00:56 sra Exp $";
24 #include "port_before.h"
26 #include <sys/types.h>
28 #include <netinet/in.h>
29 #include <arpa/nameser.h>
36 #include <isc/memcluster.h>
39 #include "port_after.h"
47 struct irs_rule * rules;
48 struct irs_rule * rule;
54 static void ng_close(struct irs_ng *);
55 static int ng_next(struct irs_ng *, const char **,
56 const char **, const char **);
57 static int ng_test(struct irs_ng *, const char *,
58 const char *, const char *,
60 static void ng_rewind(struct irs_ng *, const char *);
61 static void ng_minimize(struct irs_ng *);
66 irs_gen_ng(struct irs_acc *this) {
67 struct gen_p *accpvt = (struct gen_p *)this->private;
71 if (!(ng = memget(sizeof *ng))) {
75 memset(ng, 0x5e, sizeof *ng);
76 if (!(pvt = memget(sizeof *pvt))) {
77 memput(ng, sizeof *ng);
81 memset(pvt, 0, sizeof *pvt);
82 pvt->rules = accpvt->map_rules[irs_ng];
83 pvt->rule = pvt->rules;
88 ng->rewind = ng_rewind;
89 ng->minimize = ng_minimize;
96 ng_close(struct irs_ng *this) {
97 struct pvt *pvt = (struct pvt *)this->private;
102 memput(pvt, sizeof *pvt);
103 memput(this, sizeof *this);
107 ng_next(struct irs_ng *this, const char **host, const char **user,
110 struct pvt *pvt = (struct pvt *)this->private;
114 ng = pvt->rule->inst->ng;
115 if ((*ng->next)(ng, host, user, domain) == 1)
117 if (!(pvt->rule->flags & IRS_CONTINUE))
119 pvt->rule = pvt->rule->next;
121 ng = pvt->rule->inst->ng;
122 (*ng->rewind)(ng, pvt->curgroup);
129 ng_test(struct irs_ng *this, const char *name,
130 const char *user, const char *host, const char *domain)
132 struct pvt *pvt = (struct pvt *)this->private;
133 struct irs_rule *rule;
138 for (rule = pvt->rules; rule; rule = rule->next) {
140 rval = (*ng->test)(ng, name, user, host, domain);
141 if (rval || !(rule->flags & IRS_CONTINUE))
148 ng_rewind(struct irs_ng *this, const char *group) {
149 struct pvt *pvt = (struct pvt *)this->private;
152 pvt->rule = pvt->rules;
156 pvt->curgroup = strdup(group);
157 ng = pvt->rule->inst->ng;
158 (*ng->rewind)(ng, pvt->curgroup);
163 ng_minimize(struct irs_ng *this) {
164 struct pvt *pvt = (struct pvt *)this->private;
165 struct irs_rule *rule;
167 for (rule = pvt->rules; rule != NULL; rule = rule->next) {
168 struct irs_ng *ng = rule->inst->ng;