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-rw-r--r--contrib/bind/lib/irs/gen.c430
1 files changed, 0 insertions, 430 deletions
diff --git a/contrib/bind/lib/irs/gen.c b/contrib/bind/lib/irs/gen.c
deleted file mode 100644
index 5ba7d52..0000000
--- a/contrib/bind/lib/irs/gen.c
+++ /dev/null
@@ -1,430 +0,0 @@
-/*
- * Copyright (c) 1996-1999 by Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
- * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
- * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- */
-
-#if !defined(LINT) && !defined(CODECENTER)
-static const char rcsid[] = "$Id: gen.c,v 1.26 2001/05/29 05:48:35 marka Exp $";
-#endif
-
-/*
- * this is the top level dispatcher
- *
- * The dispatcher is implemented as an accessor class; it is an
- * accessor class that calls other accessor classes, as controlled by a
- * configuration file.
- *
- * A big difference between this accessor class and others is that the
- * map class initializers are NULL, and the map classes are already
- * filled in with method functions that will do the right thing.
- */
-
-/* Imports */
-
-#include "port_before.h"
-
-#include <isc/assertions.h>
-#include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <sys/types.h>
-#include <netinet/in.h>
-#include <arpa/nameser.h>
-#include <resolv.h>
-
-#include <isc/memcluster.h>
-#include <irs.h>
-
-#include "port_after.h"
-
-#include "irs_p.h"
-#include "gen_p.h"
-
-/* Definitions */
-
-struct nameval {
- const char * name;
- int val;
-};
-
-static const struct nameval acc_names[irs_nacc+1] = {
- { "local", irs_lcl },
- { "dns", irs_dns },
- { "nis", irs_nis },
- { "irp", irs_irp },
- { NULL, irs_nacc }
-};
-
-typedef struct irs_acc *(*accinit) __P((const char *options));
-
-static const accinit accs[irs_nacc+1] = {
- irs_lcl_acc,
- irs_dns_acc,
-#ifdef WANT_IRS_NIS
- irs_nis_acc,
-#else
- NULL,
-#endif
- irs_irp_acc,
- NULL
-};
-
-static const struct nameval map_names[irs_nmap+1] = {
- { "group", irs_gr },
- { "passwd", irs_pw },
- { "services", irs_sv },
- { "protocols", irs_pr },
- { "hosts", irs_ho },
- { "networks", irs_nw },
- { "netgroup", irs_ng },
- { NULL, irs_nmap }
-};
-
-static const struct nameval option_names[] = {
- { "merge", IRS_MERGE },
- { "continue", IRS_CONTINUE },
- { NULL, 0 }
-};
-
-/* Forward */
-
-static void gen_close(struct irs_acc *);
-static struct __res_state * gen_res_get(struct irs_acc *);
-static void gen_res_set(struct irs_acc *, struct __res_state *,
- void (*)(void *));
-static int find_name(const char *, const struct nameval nv[]);
-static void init_map_rules(struct gen_p *, const char *conf_file);
-static struct irs_rule *release_rule(struct irs_rule *);
-static int add_rule(struct gen_p *,
- enum irs_map_id, enum irs_acc_id,
- const char *);
-
-/* Public */
-
-struct irs_acc *
-irs_gen_acc(const char *options, const char *conf_file) {
- struct irs_acc *acc;
- struct gen_p *irs;
-
- if (!(acc = memget(sizeof *acc))) {
- errno = ENOMEM;
- return (NULL);
- }
- memset(acc, 0x5e, sizeof *acc);
- if (!(irs = memget(sizeof *irs))) {
- errno = ENOMEM;
- memput(acc, sizeof *acc);
- return (NULL);
- }
- memset(irs, 0x5e, sizeof *irs);
- irs->options = strdup(options);
- irs->res = NULL;
- irs->free_res = NULL;
- memset(irs->accessors, 0, sizeof irs->accessors);
- memset(irs->map_rules, 0, sizeof irs->map_rules);
- init_map_rules(irs, conf_file);
- acc->private = irs;
-#ifdef WANT_IRS_GR
- acc->gr_map = irs_gen_gr;
-#else
- acc->gr_map = NULL;
-#endif
-#ifdef WANT_IRS_PW
- acc->pw_map = irs_gen_pw;
-#else
- acc->pw_map = NULL;
-#endif
- acc->sv_map = irs_gen_sv;
- acc->pr_map = irs_gen_pr;
- acc->ho_map = irs_gen_ho;
- acc->nw_map = irs_gen_nw;
- acc->ng_map = irs_gen_ng;
- acc->res_get = gen_res_get;
- acc->res_set = gen_res_set;
- acc->close = gen_close;
- return (acc);
-}
-
-/* Methods */
-
-static struct __res_state *
-gen_res_get(struct irs_acc *this) {
- struct gen_p *irs = (struct gen_p *)this->private;
-
- if (irs->res == NULL) {
- struct __res_state *res;
- res = (struct __res_state *)malloc(sizeof *res);
- if (res == NULL)
- return (NULL);
- memset(res, 0, sizeof *res);
- gen_res_set(this, res, free);
- }
-
- if (((irs->res->options & RES_INIT) == 0) && res_ninit(irs->res) < 0)
- return (NULL);
-
- return (irs->res);
-}
-
-static void
-gen_res_set(struct irs_acc *this, struct __res_state *res,
- void (*free_res)(void *)) {
- struct gen_p *irs = (struct gen_p *)this->private;
-#if 0
- struct irs_rule *rule;
- struct irs_ho *ho;
- struct irs_nw *nw;
-#endif
-
- if (irs->res && irs->free_res) {
- res_nclose(irs->res);
- (*irs->free_res)(irs->res);
- }
-
- irs->res = res;
- irs->free_res = free_res;
-
-#if 0
- for (rule = irs->map_rules[irs_ho]; rule; rule = rule->next) {
- ho = rule->inst->ho;
-
- (*ho->res_set)(ho, res, NULL);
- }
- for (rule = irs->map_rules[irs_nw]; rule; rule = rule->next) {
- nw = rule->inst->nw;
-
- (*nw->res_set)(nw, res, NULL);
- }
-#endif
-}
-
-static void
-gen_close(struct irs_acc *this) {
- struct gen_p *irs = (struct gen_p *)this->private;
- int n;
-
- /* Search rules. */
- for (n = 0; n < irs_nmap; n++)
- while (irs->map_rules[n] != NULL)
- irs->map_rules[n] = release_rule(irs->map_rules[n]);
-
- /* Access methods. */
- for (n = 0; n < irs_nacc; n++) {
- /* Map objects. */
- if (irs->accessors[n].gr != NULL)
- (*irs->accessors[n].gr->close)(irs->accessors[n].gr);
- if (irs->accessors[n].pw != NULL)
- (*irs->accessors[n].pw->close)(irs->accessors[n].pw);
- if (irs->accessors[n].sv != NULL)
- (*irs->accessors[n].sv->close)(irs->accessors[n].sv);
- if (irs->accessors[n].pr != NULL)
- (*irs->accessors[n].pr->close)(irs->accessors[n].pr);
- if (irs->accessors[n].ho != NULL)
- (*irs->accessors[n].ho->close)(irs->accessors[n].ho);
- if (irs->accessors[n].nw != NULL)
- (*irs->accessors[n].nw->close)(irs->accessors[n].nw);
- if (irs->accessors[n].ng != NULL)
- (*irs->accessors[n].ng->close)(irs->accessors[n].ng);
- /* Enclosing accessor. */
- if (irs->accessors[n].acc != NULL)
- (*irs->accessors[n].acc->close)(irs->accessors[n].acc);
- }
-
- /* The options string was strdup'd. */
- free((void*)irs->options);
-
- if (irs->res && irs->free_res)
- (*irs->free_res)(irs->res);
-
- /* The private data container. */
- memput(irs, sizeof *irs);
-
- /* The object. */
- memput(this, sizeof *this);
-}
-
-/* Private */
-
-static int
-find_name(const char *name, const struct nameval names[]) {
- int n;
-
- for (n = 0; names[n].name != NULL; n++)
- if (strcmp(name, names[n].name) == 0)
- return (names[n].val);
- return (-1);
-}
-
-static struct irs_rule *
-release_rule(struct irs_rule *rule) {
- struct irs_rule *next = rule->next;
-
- memput(rule, sizeof *rule);
- return (next);
-}
-
-static int
-add_rule(struct gen_p *irs,
- enum irs_map_id map, enum irs_acc_id acc,
- const char *options)
-{
- struct irs_rule **rules, *last, *tmp, *new;
- struct irs_inst *inst;
- const char *cp;
- int n;
-
-#ifndef WANT_IRS_GR
- if (map == irs_gr)
- return (-1);
-#endif
-#ifndef WANT_IRS_PW
- if (map == irs_pw)
- return (-1);
-#endif
-#ifndef WANT_IRS_NIS
- if (acc == irs_nis)
- return (-1);
-#endif
- new = memget(sizeof *new);
- if (new == NULL)
- return (-1);
- memset(new, 0x5e, sizeof *new);
- new->next = NULL;
-
- new->inst = &irs->accessors[acc];
-
- new->flags = 0;
- cp = options;
- while (cp && *cp) {
- char option[50], *next;
-
- next = strchr(cp, ',');
- if (next)
- n = next++ - cp;
- else
- n = strlen(cp);
- if ((size_t)n > sizeof option - 1)
- n = sizeof option - 1;
- strncpy(option, cp, n);
- option[n] = '\0';
-
- n = find_name(option, option_names);
- if (n >= 0)
- new->flags |= n;
-
- cp = next;
- }
-
- rules = &irs->map_rules[map];
- for (last = NULL, tmp = *rules;
- tmp != NULL;
- last = tmp, tmp = tmp->next)
- (void)NULL;
- if (last == NULL)
- *rules = new;
- else
- last->next = new;
-
- /* Try to instantiate map accessors for this if necessary & approp. */
- inst = &irs->accessors[acc];
- if (inst->acc == NULL && accs[acc] != NULL)
- inst->acc = (*accs[acc])(irs->options);
- if (inst->acc != NULL) {
- if (inst->gr == NULL && inst->acc->gr_map != NULL)
- inst->gr = (*inst->acc->gr_map)(inst->acc);
- if (inst->pw == NULL && inst->acc->pw_map != NULL)
- inst->pw = (*inst->acc->pw_map)(inst->acc);
- if (inst->sv == NULL && inst->acc->sv_map != NULL)
- inst->sv = (*inst->acc->sv_map)(inst->acc);
- if (inst->pr == NULL && inst->acc->pr_map != NULL)
- inst->pr = (*inst->acc->pr_map)(inst->acc);
- if (inst->ho == NULL && inst->acc->ho_map != NULL)
- inst->ho = (*inst->acc->ho_map)(inst->acc);
- if (inst->nw == NULL && inst->acc->nw_map != NULL)
- inst->nw = (*inst->acc->nw_map)(inst->acc);
- if (inst->ng == NULL && inst->acc->ng_map != NULL)
- inst->ng = (*inst->acc->ng_map)(inst->acc);
- }
-
- return (0);
-}
-
-static void
-default_map_rules(struct gen_p *irs) {
- /* Install time honoured and proved BSD style rules as default. */
- add_rule(irs, irs_gr, irs_lcl, "");
- add_rule(irs, irs_pw, irs_lcl, "");
- add_rule(irs, irs_sv, irs_lcl, "");
- add_rule(irs, irs_pr, irs_lcl, "");
- add_rule(irs, irs_ho, irs_dns, "continue");
- add_rule(irs, irs_ho, irs_lcl, "");
- add_rule(irs, irs_nw, irs_dns, "continue");
- add_rule(irs, irs_nw, irs_lcl, "");
- add_rule(irs, irs_ng, irs_lcl, "");
-}
-
-static void
-init_map_rules(struct gen_p *irs, const char *conf_file) {
- char line[1024], pattern[40], mapname[20], accname[20], options[100];
- FILE *conf;
-
- if (conf_file == NULL)
- conf_file = _PATH_IRS_CONF ;
-
- /* A conf file of "" means compiled in defaults. Irpd wants this */
- if (conf_file[0] == '\0' || (conf = fopen(conf_file, "r")) == NULL) {
- default_map_rules(irs);
- return;
- }
- (void) sprintf(pattern, "%%%ds %%%ds %%%ds\n",
- sizeof mapname, sizeof accname, sizeof options);
- while (fgets(line, sizeof line, conf)) {
- enum irs_map_id map;
- enum irs_acc_id acc;
- char *tmp;
- int n;
-
- for (tmp = line;
- isascii((unsigned char)*tmp) &&
- isspace((unsigned char)*tmp);
- tmp++)
- (void)NULL;
- if (*tmp == '#' || *tmp == '\n' || *tmp == '\0')
- continue;
- n = sscanf(tmp, pattern, mapname, accname, options);
- if (n < 2)
- continue;
- if (n < 3)
- options[0] = '\0';
-
- n = find_name(mapname, map_names);
- INSIST(n < irs_nmap);
- if (n < 0)
- continue;
- map = (enum irs_map_id) n;
-
- n = find_name(accname, acc_names);
- INSIST(n < irs_nacc);
- if (n < 0)
- continue;
- acc = (enum irs_acc_id) n;
-
- add_rule(irs, map, acc, options);
- }
- fclose(conf);
-}
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