File: [local] / src / usr.bin / dig / dig.h (download)
Revision 1.16, Fri May 17 23:56:19 2024 UTC (3 weeks, 2 days ago) by jsg
Branch: MAIN
CVS Tags: HEAD Changes since 1.15: +0 -3 lines
remove prototypes with no matching function; ok florian@
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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* Permission to use, copy, modify, and/or 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.
*/
#ifndef DIG_H
#define DIG_H
/*! \file */
#include <time.h>
#include <dst/dst.h>
#include <isc/buffer.h>
#include <isc/list.h>
#include <isc/sockaddr.h>
#include <isc/socket.h>
#define MXSERV 20
#define MXNAME (DNS_NAME_MAXTEXT+1)
#define MXRD 32
/*% Buffer Size */
#define BUFSIZE 512
#define COMMSIZE 0xffff
/*% 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
/*% Default TCP Timeout */
#define TCP_TIMEOUT 10
/*% Default UDP Timeout */
#define UDP_TIMEOUT 5
#define SERVER_TIMEOUT 1
#define LOOKUP_LIMIT 64
/*%
* 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.
*/
/*
* Defaults for the sigchase suboptions. Consolidated here because
* these control the layout of dig_lookup_t (among other things).
*/
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;
/*% The dig_lookup structure */
struct dig_lookup {
int
pending, /*%< Pending a successful answer */
waiting_connect,
doing_xfr,
ns_search_only, /*%< dig +nssearch, host -C */
identify, /*%< Append an "on server <foo>" message */
identify_previous_line, /*% Prepend a "Nameserver <foo>:"
message, with newline and tab */
ignore,
recurse,
aaonly,
adflag,
cdflag,
trace, /*% dig +trace */
trace_root, /*% initial query for either +trace or +nssearch */
tcp_mode,
tcp_mode_set,
ip6_int,
comments,
stats,
section_question,
section_answer,
section_authority,
section_additional,
servfail_stops,
new_search,
need_search,
done_as_is,
besteffort,
dnssec,
expire,
sit,
nsid, /*% Name Server ID (RFC 5001) */
ednsneg,
mapped,
idnout;
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;
int rdtypeset;
int 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;
struct timespec 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;
uint16_t udpsize;
int16_t edns;
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;
struct sockaddr_storage *ecs_addr;
int ecs_plen;
char *sitvalue;
dns_ednsopt_t *ednsopts;
unsigned int ednsoptscnt;
unsigned int ednsflags;
dns_opcode_t opcode;
unsigned int eoferr;
};
/*% The dig_query structure */
struct dig_query {
dig_lookup_t *lookup;
int waiting_connect,
pending_free,
waiting_senddone,
first_pass,
first_soa_rcvd,
second_rr_rcvd,
first_repeat_rcvd,
recv_made,
warn_id,
timedout;
uint32_t first_rr_serial;
uint32_t second_rr_serial;
uint32_t msg_count;
uint32_t rr_count;
int ixfr_axfr;
char *servname;
char *userarg;
isc_bufferlist_t sendlist,
recvlist,
lengthlist;
isc_buffer_t recvbuf,
lengthbuf,
slbuf;
char *recvspace,
lengthspace[4],
slspace[4];
isc_socket_t *sock;
ISC_LINK(dig_query_t) link;
ISC_LINK(dig_query_t) clink;
struct sockaddr_storage sockaddr;
struct timespec time_sent;
struct timespec time_recv;
uint64_t byte_count;
isc_buffer_t sendbuf;
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_serverlist_t root_hints_server_list;
extern dig_searchlistlist_t search_list;
extern unsigned int extrabytes;
extern int check_ra, have_ipv4, have_ipv6, specified_source,
usesearch, showsearch, qr;
extern in_port_t port;
extern unsigned int timeout;
extern int sendcount;
extern int ndots;
extern int lookup_counter;
extern int exitcode;
extern struct sockaddr_storage bind_address;
extern char keynametext[MXNAME];
extern char keyfile[MXNAME];
extern char keysecret[MXNAME];
extern dns_name_t *hmacname;
extern unsigned int digestbits;
extern dns_tsigkey_t *tsigkey;
extern int validated;
extern isc_taskmgr_t *taskmgr;
extern isc_task_t *global_task;
extern int free_now;
extern int debugging, debugtiming;
extern int keep_open;
extern char *progname;
extern int tries;
extern int fatalexit;
int host_main(int, char **);
int nslookup_main(int, char **);
/*
* Routines in dighost.c.
*/
isc_result_t
get_address(char *host, in_port_t port, struct sockaddr_storage *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, int ip6_int,
int strict);
__dead void
fatal(const char *format, ...)
__attribute__((__format__(__printf__, 1, 2)));
void
debug(const char *format, ...) __attribute__((__format__(__printf__, 1, 2)));
void
check_result(isc_result_t result, const char *msg);
int
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);
void
setup_libs(void);
void
setup_system(int ipv4only, int ipv6only);
isc_result_t
parse_netprefix(struct sockaddr_storage **sap, int *plen, const char *value);
void
parse_hmac(const char *hmacstr);
dig_lookup_t *
requeue_lookup(dig_lookup_t *lookold, int servers);
dig_lookup_t *
make_empty_lookup(void);
dig_lookup_t *
clone_lookup(dig_lookup_t *lookold, int servers);
dig_server_t *
make_server(const char *servname, const char *userarg);
void
flush_server_list(void);
isc_result_t
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);
char *
next_token(char **stringp, const char *delim);
int64_t
uelapsed(const struct timespec *t1, const struct timespec *t2);
/*
* 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, dns_message_t *msg, int headers);
/*%<
* Print the final result of the lookup.
*/
extern void
(*dighost_received)(unsigned int bytes, struct sockaddr_storage *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);
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(int, int, int argc, char **argv);
/*%<
* set the main application event cycle running
*/
void
dig_startup(void);
/*%<
* Cleans up the application
*/
void
dig_shutdown(void);
#endif