/* $NetBSD: gen_ng.c,v 1.1.1.2 2012/09/09 16:07:51 christos Exp $ */ /* * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") * 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 ISC DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC 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_ng.c,v 1.3 2005/04/27 04:56:23 sra Exp "; #endif /* Imports */ #include "port_before.h" #include #include #include #include #include #include #include #include #include #include "port_after.h" #include "irs_p.h" #include "gen_p.h" /* Types */ struct pvt { struct irs_rule * rules; struct irs_rule * rule; char * curgroup; }; /* Forward */ static void ng_close(struct irs_ng *); static int ng_next(struct irs_ng *, const char **, const char **, const char **); static int ng_test(struct irs_ng *, const char *, const char *, const char *, const char *); static void ng_rewind(struct irs_ng *, const char *); static void ng_minimize(struct irs_ng *); /* Public */ struct irs_ng * irs_gen_ng(struct irs_acc *this) { struct gen_p *accpvt = (struct gen_p *)this->private; struct irs_ng *ng; struct pvt *pvt; if (!(ng = memget(sizeof *ng))) { errno = ENOMEM; return (NULL); } memset(ng, 0x5e, sizeof *ng); if (!(pvt = memget(sizeof *pvt))) { memput(ng, sizeof *ng); errno = ENOMEM; return (NULL); } memset(pvt, 0, sizeof *pvt); pvt->rules = accpvt->map_rules[irs_ng]; pvt->rule = pvt->rules; ng->private = pvt; ng->close = ng_close; ng->next = ng_next; ng->test = ng_test; ng->rewind = ng_rewind; ng->minimize = ng_minimize; return (ng); } /* Methods */ static void ng_close(struct irs_ng *this) { struct pvt *pvt = (struct pvt *)this->private; ng_minimize(this); if (pvt->curgroup) free(pvt->curgroup); memput(pvt, sizeof *pvt); memput(this, sizeof *this); } static int ng_next(struct irs_ng *this, const char **host, const char **user, const char **domain) { struct pvt *pvt = (struct pvt *)this->private; struct irs_ng *ng; while (pvt->rule) { ng = pvt->rule->inst->ng; if ((*ng->next)(ng, host, user, domain) == 1) return (1); if (!(pvt->rule->flags & IRS_CONTINUE)) break; pvt->rule = pvt->rule->next; if (pvt->rule) { ng = pvt->rule->inst->ng; (*ng->rewind)(ng, pvt->curgroup); } } return (0); } static int ng_test(struct irs_ng *this, const char *name, const char *user, const char *host, const char *domain) { struct pvt *pvt = (struct pvt *)this->private; struct irs_rule *rule; struct irs_ng *ng; int rval; rval = 0; for (rule = pvt->rules; rule; rule = rule->next) { ng = rule->inst->ng; rval = (*ng->test)(ng, name, user, host, domain); if (rval || !(rule->flags & IRS_CONTINUE)) break; } return (rval); } static void ng_rewind(struct irs_ng *this, const char *group) { struct pvt *pvt = (struct pvt *)this->private; struct irs_ng *ng; pvt->rule = pvt->rules; if (pvt->rule) { if (pvt->curgroup) free(pvt->curgroup); pvt->curgroup = strdup(group); ng = pvt->rule->inst->ng; (*ng->rewind)(ng, pvt->curgroup); } } static void ng_minimize(struct irs_ng *this) { struct pvt *pvt = (struct pvt *)this->private; struct irs_rule *rule; for (rule = pvt->rules; rule != NULL; rule = rule->next) { struct irs_ng *ng = rule->inst->ng; (*ng->minimize)(ng); } } /*! \file */