Adding upstream version 1:9.18.19.upstream/1%9.18.19upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 466 insertions, 0 deletions

diff --git a/bin/dig/dighost.h b/bin/dig/dighost.h
new file mode 100644
index 0000000..227c315
--- /dev/null
+++ b/bin/dig/dighost.h
@@ -0,0 +1,466 @@
+/*
+ * 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
+
+/*! \file */
+
+#include <inttypes.h>
+#include <stdbool.h>
+
+#include <isc/attributes.h>
+#include <isc/buffer.h>
+#include <isc/formatcheck.h>
+#include <isc/lang.h>
+#include <isc/list.h>
+#include <isc/magic.h>
+#include <isc/mem.h>
+#include <isc/netmgr.h>
+#include <isc/print.h>
+#include <isc/refcount.h>
+#include <isc/sockaddr.h>
+#include <isc/time.h>
+
+#include <dns/rdatalist.h>
+
+#include <dst/dst.h>
+
+#ifdef __APPLE__
+#include <TargetConditionals.h>
+#endif /* ifdef __APPLE__ */
+
+#define MXSERV 20
+#define MXNAME (DNS_NAME_MAXTEXT + 1)
+#define MXRD   32
+/*% Buffer Size */
+#define BUFSIZE	 512
+#define COMMSIZE 0xffff
+#ifndef RESOLV_CONF
+/*% location of resolve.conf */
+#define RESOLV_CONF "/etc/resolv.conf"
+#endif /* ifndef RESOLV_CONF */
+/*% output buffer */
+#define OUTPUTBUF 32767
+/*% Max RR Limit */
+#define MAXRRLIMIT 0xffffffff
+#define MAXTIMEOUT 0xffff
+/*% Max number of tries */
+#define MAXTRIES 0xffffffff
+/*% Max number of dots */
+#define MAXNDOTS 0xffff
+/*% Max number of ports */
+#define MAXPORT 0xffff
+/*% Max serial number */
+#define MAXSERIAL 0xffffffff
+/*% Max query ID */
+#define MAXQID 0xffff
+
+/*% Default TCP Timeout */
+#define TCP_TIMEOUT 10
+/*% Default UDP Timeout */
+#define UDP_TIMEOUT 5
+
+#define SERVER_TIMEOUT 1
+
+#define LOOKUP_LIMIT 64
+
+#define DEFAULT_EDNS_VERSION 0
+#define DEFAULT_EDNS_BUFSIZE 1232
+
+#define DEFAULT_HTTPS_QUERY "?dns="
+
+/*%
+ * Lookup_limit is just a limiter, keeping too many lookups from being
+ * created.  It's job is mainly to prevent the program from running away
+ * in a tight loop of constant lookups.  It's value is arbitrary.
+ */
+
+ISC_LANG_BEGINDECLS
+
+typedef struct dig_lookup dig_lookup_t;
+typedef struct dig_query dig_query_t;
+typedef struct dig_server dig_server_t;
+typedef ISC_LIST(dig_server_t) dig_serverlist_t;
+typedef struct dig_searchlist dig_searchlist_t;
+
+#define DIG_LOOKUP_MAGIC ISC_MAGIC('D', 'i', 'g', 'l')
+
+#define DIG_VALID_LOOKUP(x) ISC_MAGIC_VALID((x), DIG_LOOKUP_MAGIC)
+
+#define DIG_QUERY_MAGIC ISC_MAGIC('D', 'i', 'g', 'q')
+
+#define DIG_VALID_QUERY(x) ISC_MAGIC_VALID((x), DIG_QUERY_MAGIC)
+
+/*% The dig_lookup structure */
+struct dig_lookup {
+	unsigned int magic;
+	isc_refcount_t references;
+	bool aaonly, adflag, badcookie, besteffort, cdflag, cleared, comments,
+		dns64prefix, dnssec, doing_xfr, done_as_is, ednsneg, expandaaaa,
+		expire, fuzzing, header_only, identify, /*%< Append an "on
+							   server <foo>" message
+							 */
+		identify_previous_line, /*% Prepend a "Nameserver <foo>:"
+					   message, with newline and tab */
+		idnin, idnout, ignore, multiline, need_search, new_search,
+		noclass, nocrypto, nottl, ns_search_only, /*%< dig +nssearch,
+							     host -C */
+		ns_search_success, nsid, /*% Name Server ID (RFC 5001) */
+		onesoa, pending,	 /*%< Pending a successful answer */
+		print_unknown_format, qr, raflag, recurse, section_additional,
+		section_answer, section_authority, section_question,
+		seenbadcookie, sendcookie, servfail_stops,
+		setqid, /*% use a speciied query ID */
+		showbadcookie, stats, tcflag, tcp_keepalive, tcp_mode,
+		tcp_mode_set, tls_mode, /*% connect using TLS */
+		trace,			/*% dig +trace */
+		trace_root, /*% initial query for either +trace or +nssearch */
+		ttlunits, use_usec, waiting_connect, zflag;
+	char textname[MXNAME]; /*% Name we're going to be looking up */
+	char cmdline[MXNAME];
+	dns_rdatatype_t rdtype;
+	dns_rdatatype_t qrdtype;
+	dns_rdataclass_t rdclass;
+	bool rdtypeset;
+	bool rdclassset;
+	char name_space[BUFSIZE];
+	char oname_space[BUFSIZE];
+	isc_buffer_t namebuf;
+	isc_buffer_t onamebuf;
+	isc_buffer_t renderbuf;
+	char *sendspace;
+	dns_name_t *name;
+	isc_interval_t interval;
+	dns_message_t *sendmsg;
+	dns_name_t *oname;
+	ISC_LINK(dig_lookup_t) link;
+	ISC_LIST(dig_query_t) q;
+	ISC_LIST(dig_query_t) connecting;
+	dig_query_t *current_query;
+	dig_serverlist_t my_server_list;
+	dig_searchlist_t *origin;
+	dig_query_t *xfr_q;
+	uint32_t retries;
+	int nsfound;
+	int16_t udpsize;
+	int16_t edns;
+	int16_t padding;
+	uint32_t ixfr_serial;
+	isc_buffer_t rdatabuf;
+	char rdatastore[MXNAME];
+	dst_context_t *tsigctx;
+	isc_buffer_t *querysig;
+	uint32_t msgcounter;
+	dns_fixedname_t fdomain;
+	isc_sockaddr_t *ecs_addr;
+	char *cookie;
+	dns_ednsopt_t *ednsopts;
+	unsigned int ednsoptscnt;
+	unsigned int ednsflags;
+	dns_opcode_t opcode;
+	int rrcomments;
+	uint16_t qid;
+	struct {
+		bool http_plain;
+		bool https_mode;
+		bool https_get;
+		char *https_path;
+	};
+	struct {
+		bool tls_ca_set;
+		char *tls_ca_file;
+		bool tls_hostname_set;
+		char *tls_hostname;
+		bool tls_cert_file_set;
+		char *tls_cert_file;
+		bool tls_key_file_set;
+		char *tls_key_file;
+		isc_tlsctx_cache_t *tls_ctx_cache;
+	};
+	isc_stdtime_t fuzztime;
+};
+
+/*% The dig_query structure */
+struct dig_query {
+	unsigned int magic;
+	dig_lookup_t *lookup;
+	bool started;
+	bool first_soa_rcvd;
+	bool second_rr_rcvd;
+	bool first_repeat_rcvd;
+	bool warn_id;
+	bool canceled;
+	uint32_t first_rr_serial;
+	uint32_t second_rr_serial;
+	uint32_t msg_count;
+	uint32_t rr_count;
+	bool ixfr_axfr;
+	char *servname;
+	char *userarg;
+	isc_buffer_t sendbuf;
+	char *recvspace, *tmpsendspace, lengthspace[4];
+	isc_refcount_t references;
+	isc_nmhandle_t *handle;
+	isc_nmhandle_t *readhandle;
+	isc_nmhandle_t *sendhandle;
+	ISC_LINK(dig_query_t) link;
+	ISC_LINK(dig_query_t) clink;
+	isc_sockaddr_t sockaddr;
+	isc_time_t time_sent;
+	isc_time_t time_recv;
+	uint64_t byte_count;
+	isc_timer_t *timer;
+};
+
+struct dig_server {
+	char servername[MXNAME];
+	char userarg[MXNAME];
+	ISC_LINK(dig_server_t) link;
+};
+
+struct dig_searchlist {
+	char origin[MXNAME];
+	ISC_LINK(dig_searchlist_t) link;
+};
+
+typedef ISC_LIST(dig_searchlist_t) dig_searchlistlist_t;
+typedef ISC_LIST(dig_lookup_t) dig_lookuplist_t;
+
+/*
+ * Externals from dighost.c
+ */
+
+extern dig_lookuplist_t lookup_list;
+extern dig_serverlist_t server_list;
+extern dig_searchlistlist_t search_list;
+extern unsigned int extrabytes;
+
+extern bool check_ra, have_ipv4, have_ipv6, specified_source, usesearch,
+	showsearch, yaml;
+extern in_port_t port;
+extern bool port_set;
+extern unsigned int timeout;
+extern isc_mem_t *mctx;
+extern isc_refcount_t sendcount;
+extern int ndots;
+extern int lookup_counter;
+extern int exitcode;
+extern isc_sockaddr_t localaddr;
+extern char keynametext[MXNAME];
+extern char keyfile[MXNAME];
+extern char keysecret[MXNAME];
+extern const dns_name_t *hmacname;
+extern unsigned int digestbits;
+extern dns_tsigkey_t *tsigkey;
+extern bool validated;
+extern isc_taskmgr_t *taskmgr;
+extern isc_task_t *global_task;
+extern bool free_now;
+extern bool debugging, debugtiming, memdebugging;
+extern bool keep_open;
+
+extern char *progname;
+extern int tries;
+extern int fatalexit;
+extern bool verbose;
+
+/*
+ * Routines in dighost.c.
+ */
+isc_result_t
+get_address(char *host, in_port_t myport, isc_sockaddr_t *sockaddr);
+
+int
+getaddresses(dig_lookup_t *lookup, const char *host, isc_result_t *resultp);
+
+isc_result_t
+get_reverse(char *reverse, size_t len, char *value, bool strict);
+
+noreturn void
+fatal(const char *format, ...) ISC_FORMAT_PRINTF(1, 2);
+
+void
+warn(const char *format, ...) ISC_FORMAT_PRINTF(1, 2);
+
+noreturn void
+digexit(void);
+
+void
+cleanup_openssl_refs(void);
+
+void
+debug(const char *format, ...) ISC_FORMAT_PRINTF(1, 2);
+
+void
+check_result(isc_result_t result, const char *msg);
+
+bool
+setup_lookup(dig_lookup_t *lookup);
+
+void
+destroy_lookup(dig_lookup_t *lookup);
+
+void
+do_lookup(dig_lookup_t *lookup);
+
+void
+start_lookup(void);
+
+void
+onrun_callback(isc_task_t *task, isc_event_t *event);
+
+int
+dhmain(int argc, char **argv);
+
+void
+setup_libs(void);
+
+void
+setup_system(bool ipv4only, bool ipv6only);
+
+isc_result_t
+parse_uint(uint32_t *uip, const char *value, uint32_t max, const char *desc);
+
+isc_result_t
+parse_xint(uint32_t *uip, const char *value, uint32_t max, const char *desc);
+
+isc_result_t
+parse_netprefix(isc_sockaddr_t **sap, const char *value);
+
+void
+parse_hmac(const char *hmacstr);
+
+dig_lookup_t *
+requeue_lookup(dig_lookup_t *lookold, bool servers);
+
+dig_lookup_t *
+make_empty_lookup(void);
+
+dig_lookup_t *
+clone_lookup(dig_lookup_t *lookold, bool servers);
+
+dig_server_t *
+make_server(const char *servname, const char *userarg);
+
+void
+flush_server_list(void);
+
+void
+set_nameserver(char *opt);
+
+void
+clone_server_list(dig_serverlist_t src, dig_serverlist_t *dest);
+
+void
+cancel_all(void);
+
+void
+destroy_libs(void);
+
+void
+set_search_domain(char *domain);
+
+/*
+ * Routines to be defined in dig.c, host.c, and nslookup.c. and
+ * then assigned to the appropriate function pointer
+ */
+extern isc_result_t (*dighost_printmessage)(dig_query_t *query,
+					    const isc_buffer_t *msgbuf,
+					    dns_message_t *msg, bool headers);
+
+/*
+ * Print an error message in the appropriate format.
+ */
+extern void (*dighost_error)(const char *format, ...);
+
+/*
+ * Print a warning message in the appropriate format.
+ */
+extern void (*dighost_warning)(const char *format, ...);
+
+/*
+ * Print a comment in the appropriate format.
+ */
+extern void (*dighost_comments)(dig_lookup_t *lookup, const char *format, ...);
+
+/*%<
+ * Print the final result of the lookup.
+ */
+
+extern void (*dighost_received)(unsigned int bytes, isc_sockaddr_t *from,
+				dig_query_t *query);
+/*%<
+ * Print a message about where and when the response
+ * was received from, like the final comment in the
+ * output of "dig".
+ */
+
+extern void (*dighost_trying)(char *frm, dig_lookup_t *lookup);
+
+extern void (*dighost_shutdown)(void);
+
+extern void (*dighost_pre_exit_hook)(void);
+
+void
+save_opt(dig_lookup_t *lookup, char *code, char *value);
+
+void
+setup_file_key(void);
+void
+setup_text_key(void);
+
+/*
+ * Routines exported from dig.c for use by dig for iOS
+ */
+
+/*%
+ * Call once only to set up libraries, parse global
+ * parameters and initial command line query parameters
+ */
+void
+dig_setup(int argc, char **argv);
+
+/*%
+ * Call to supply new parameters for the next lookup
+ */
+void
+dig_query_setup(bool, bool, int argc, char **argv);
+
+/*%
+ * set the main application event cycle running
+ */
+void
+dig_startup(void);
+
+/*%
+ * Initiates the next lookup cycle
+ */
+void
+dig_query_start(void);
+
+/*%
+ * Activate/deactivate IDN filtering of output.
+ */
+void
+dig_idnsetup(dig_lookup_t *lookup, bool active);
+
+/*%
+ * Cleans up the application
+ */
+void
+dig_shutdown(void);
+
+bool
+dig_lookup_is_tls(const dig_lookup_t *lookup);
+
+ISC_LANG_ENDDECLS