diff options
Diffstat (limited to 'usr/src/lib/libresolv2_joy/common/irs/gen_ng.c')
| -rw-r--r-- | usr/src/lib/libresolv2_joy/common/irs/gen_ng.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/usr/src/lib/libresolv2_joy/common/irs/gen_ng.c b/usr/src/lib/libresolv2_joy/common/irs/gen_ng.c new file mode 100644 index 0000000000..05c7d4dfb7 --- /dev/null +++ b/usr/src/lib/libresolv2_joy/common/irs/gen_ng.c @@ -0,0 +1,170 @@ +/* + * 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. + */ + +/* Imports */ + +#include "port_before.h" + +#include <sys/types.h> + +#include <netinet/in.h> +#include <arpa/nameser.h> +#include <resolv_joy.h> + +#include <errno.h> +#include <stdlib.h> +#include <string.h> + +#include <isc/memcluster.h> +#include <irs.h> + +#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 */ |