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Diffstat (limited to 'lib/irs/include')
| -rw-r--r-- | lib/irs/include/irs/resconf.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/lib/irs/include/irs/resconf.h b/lib/irs/include/irs/resconf.h new file mode 100644 index 0000000..3af1723 --- /dev/null +++ b/lib/irs/include/irs/resconf.h @@ -0,0 +1,140 @@ +/* + * Copyright (C) Internet Systems Consortium, Inc. ("ISC") + * + * SPDX-License-Identifier: MPL-2.0 + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, you can obtain one at https://mozilla.org/MPL/2.0/. + * + * See the COPYRIGHT file distributed with this work for additional + * information regarding copyright ownership. + */ + +#pragma once + +#include <isc/lang.h> +#include <isc/list.h> +#include <isc/types.h> + +/*! \file + * + * \brief + * The IRS resconf module parses the legacy "/etc/resolv.conf" file and + * creates the corresponding configuration objects for the DNS library + * modules. + */ + +/*%< resolv.conf configuration information */ +typedef struct irs_resconf irs_resconf_t; + +/*% + * A DNS search list specified in the 'domain' or 'search' statements + * in the "resolv.conf" file. + */ +typedef struct irs_resconf_search { + char *domain; + ISC_LINK(struct irs_resconf_search) link; +} irs_resconf_search_t; + +typedef ISC_LIST(irs_resconf_search_t) irs_resconf_searchlist_t; + +ISC_LANG_BEGINDECLS + +isc_result_t +irs_resconf_load(isc_mem_t *mctx, const char *filename, irs_resconf_t **confp); +/*%< + * Load the resolver configuration file 'filename' in the "resolv.conf" format, + * and create a new irs_resconf_t object from the configuration. If the file + * is not found ISC_R_FILENOTFOUND is returned with the structure initialized + * as if file contained only: + * + * nameserver ::1 + * nameserver 127.0.0.1 + * + * Notes: + * + *\li Currently, only the following options are supported: + * nameserver, domain, search, sortlist, ndots, and options. + * In addition, 'sortlist' is not actually effective; it's parsed, but + * the application cannot use the configuration. + * + * Returns: + * \li ISC_R_SUCCESS on success + * \li ISC_R_FILENOTFOUND if the file was not found. *confp will be valid. + * \li other on error. + * + * Requires: + * + *\li 'mctx' is a valid memory context. + * + *\li 'filename' != NULL + * + *\li 'confp' != NULL && '*confp' == NULL + */ + +void +irs_resconf_destroy(irs_resconf_t **confp); +/*%< + * Destroy the resconf object. + * + * Requires: + * + *\li '*confp' is a valid resconf object. + * + * Ensures: + * + *\li *confp == NULL + */ + +isc_sockaddrlist_t * +irs_resconf_getnameservers(irs_resconf_t *conf); +/*%< + * Return a list of name server addresses stored in 'conf'. + * + * Requires: + * + *\li 'conf' is a valid resconf object. + */ + +irs_resconf_searchlist_t * +irs_resconf_getsearchlist(irs_resconf_t *conf); +/*%< + * Return the search list stored in 'conf'. + * + * Requires: + * + *\li 'conf' is a valid resconf object. + */ + +unsigned int +irs_resconf_getndots(irs_resconf_t *conf); +/*%< + * Return the 'ndots' value stored in 'conf'. + * + * Requires: + * + *\li 'conf' is a valid resconf object. + */ + +unsigned int +irs_resconf_getattempts(irs_resconf_t *conf); +/*%< + * Return the 'attempts' value stored in 'conf'. + * + * Requires: + * + *\li 'conf' is a valid resconf object. + */ + +unsigned int +irs_resconf_gettimeout(irs_resconf_t *conf); +/*%< + * Return the 'timeout' value stored in 'conf'. + * + * Requires: + * + *\li 'conf' is a valid resconf object. + */ + +ISC_LANG_ENDDECLS |