246 lines
6.4 KiB
C
246 lines
6.4 KiB
C
/*
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** Resource record structures.
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**
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** These define the various resource record fields after decoding
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** from the internal representation in the nameserver answer buffer.
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**
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** @(#)rrec.h e07@nikhef.nl (Eric Wassenaar) 941205
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*/
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#define MAXSTRING 255 /* maximum size of single encoded string */
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#define MAXSTRLEN MAXDLEN /* maximum size of total encoded string */
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typedef struct rr_data {
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u_char databuf[MAXDLEN]; /* generic data buffer */
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} rr_data_t;
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/*
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** Record-specific data fields.
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*/
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/* traditional records */
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typedef struct a_data {
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ipaddr_t address; /* internet address of host */
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} a_data_t;
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typedef struct ns_data {
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char nameserver[MAXDNAME+1]; /* name of domain nameserver */
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} ns_data_t;
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typedef struct md_data {
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char destination[MAXDNAME+1]; /* name of mail destination */
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} md_data_t;
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typedef struct mf_data {
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char forwarder[MAXDNAME+1]; /* name of mail forwarder */
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} mf_data_t;
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typedef struct cname_data {
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char canonical[MAXDNAME+1]; /* canonical domain name */
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} cname_data_t;
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typedef struct soa_data {
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char primary[MAXDNAME+1]; /* name of primary nameserver */
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char hostmaster[MAXDNAME+1]; /* name of hostmaster mailbox */
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int serial; /* serial (version) number */
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int refresh; /* refresh time in seconds */
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int retry; /* refresh retry time in seconds */
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int expire; /* expiration time in seconds */
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int defttl; /* default time_to_live */
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} soa_data_t;
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typedef struct mb_data {
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char mailhost[MAXDNAME+1]; /* name of mailbox host */
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} mb_data_t;
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typedef struct mg_data {
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char memberbox[MAXDNAME+1]; /* mailbox of mail group member */
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} mg_data_t;
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typedef struct mr_data {
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char aliasbox[MAXDNAME+1]; /* mailbox of mail alias */
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} mr_data_t;
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typedef struct null_data {
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u_char nullbuf[MAXDLEN]; /* generic data buffer */
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} null_data_t;
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typedef struct wks_data {
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ipaddr_t servaddress; /* internet address of host */
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int protocol; /* protocol number */
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u_char services[32]; /* ports 0-255 */
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} wks_data_t;
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typedef struct ptr_data {
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char domain[MAXDNAME+1]; /* domain name of pointer */
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} ptr_data_t;
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typedef struct hinfo_data {
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char cputype[MAXSTRING+1]; /* machine description */
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char ostype[MAXSTRING+1]; /* operating system type */
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} hinfo_data_t;
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typedef struct minfo_data {
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char ownerbox[MAXDNAME+1]; /* name of owner mailbox */
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char errorbox[MAXDNAME+1]; /* name of error mailbox */
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} minfo_data_t;
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typedef struct mx_data {
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int preference; /* preference value */
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char mxhost[MAXDNAME+1]; /* name of mx host */
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} mx_data_t;
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typedef struct txt_data {
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char text[MAXSTRLEN+1]; /* concatenated substrings */
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} txt_data_t;
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/* later additions */
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typedef struct rp_data {
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char mailbox[MAXDNAME+1]; /* name of person mailbox */
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char txtinfo[MAXDNAME+1]; /* name of description txt record */
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} rp_data_t;
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typedef struct afsdb_data {
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int afstype; /* type of afs server */
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char afshost[MAXDNAME+1]; /* name of afs server */
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} afsdb_data_t;
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typedef struct x25_data {
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char psdnaddress[MAXSTRING+1]; /* x25 psdn address */
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} x25_data_t;
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typedef struct isdn_data {
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char isdnaddress[MAXSTRING+1]; /* isdn address */
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char isdnsubaddr[MAXSTRING+1]; /* isdn subaddress */
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} isdn_data_t;
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typedef struct rt_data {
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int routepref; /* preference value */
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char routehost[MAXDNAME+1]; /* name of route-through host */
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} rt_data_t;
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typedef struct nsap_data {
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u_char nsapaddr[MAXNSAP]; /* binary nsap address */
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} nsap_data_t;
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typedef struct nsapptr_data {
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char nsapdomain[MAXDNAME+1]; /* domain name of nsap pointer */
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} nsapptr_data_t;
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typedef struct px_data {
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int mappref; /* preference value */
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char map822[MAXDNAME+1]; /* rfc822 domain name */
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char mapx400[MAXDNAME+1]; /* x400 domain name */
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} px_data_t;
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typedef struct gpos_data {
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char longpos[MAXSTRING+1]; /* geographical longitude */
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char latpos[MAXSTRING+1]; /* geographical latitude */
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char altpos[MAXSTRING+1]; /* geographical altitude */
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} gpos_data_t;
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typedef struct loc_data {
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int locversion; /* version number */
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int objectsize; /* size of object */
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int hprecision; /* horizontal precision */
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int vprecision; /* vertical precision */
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int longitude; /* geographical longitude */
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int latitude; /* geographical latitude */
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int altitude; /* geographical altitude */
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} loc_data_t;
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/* nonstandard records */
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typedef struct uinfo_data {
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char userinfo[MAXSTRLEN+1]; /* user description */
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} uinfo_data_t;
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typedef struct uid_data {
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int userid; /* user uid */
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} uid_data_t;
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typedef struct gid_data {
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int groupid; /* user gid */
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} gid_data_t;
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typedef struct unspec_data {
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u_char unspecbuf[MAXDLEN]; /* generic data buffer */
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} unspec_data_t;
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/*
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** Generic resource record description.
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*/
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typedef struct rrecord {
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char name[MAXDNAME+1]; /* resource record name */
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int type; /* resource record type */
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int class; /* resource record class */
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int ttl; /* time_to_live value */
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union {
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rr_data_t data_rr;
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a_data_t data_a;
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ns_data_t data_ns;
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md_data_t data_md;
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mf_data_t data_mf;
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cname_data_t data_cname;
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soa_data_t data_soa;
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mb_data_t data_mb;
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mg_data_t data_mg;
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mr_data_t data_mr;
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null_data_t data_null;
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wks_data_t data_wks;
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ptr_data_t data_ptr;
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hinfo_data_t data_hinfo;
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minfo_data_t data_minfo;
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mx_data_t data_mx;
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txt_data_t data_txt;
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rp_data_t data_rp;
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afsdb_data_t data_afsdb;
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x25_data_t data_x25;
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isdn_data_t data_isdn;
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rt_data_t data_rt;
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nsap_data_t data_nsap;
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nsapptr_data_t data_nsapptr;
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px_data_t data_px;
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gpos_data_t data_gpos;
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loc_data_t data_loc;
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uinfo_data_t data_uinfo;
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uid_data_t data_uid;
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gid_data_t data_gid;
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unspec_data_t data_unspec;
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} data;
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} rrecord_t;
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#define t_rr data.data_rr
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#define t_a data.data_a
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#define t_ns data.data_ns
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#define t_md data.data_md
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#define t_mf data.data_mf
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#define t_cname data.data_cname
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#define t_soa data.data_soa
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#define t_mb data.data_mb
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#define t_mg data.data_mg
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#define t_mr data.data_mr
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#define t_null data.data_null
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#define t_wks data.data_wks
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#define t_ptr data.data_ptr
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#define t_hinfo data.data_hinfo
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#define t_minfo data.data_minfo
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#define t_mx data.data_mx
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#define t_txt data.data_txt
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#define t_rp data.data_rp
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#define t_afsdb data.data_afsdb
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#define t_x25 data.data_x25
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#define t_isdn data.data_isdn
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#define t_rt data.data_rt
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#define t_nsap data.data_nsap
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#define t_nsapptr data.data_nsapptr
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#define t_px data.data_px
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#define t_gpos data.data_gpos
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#define t_loc data.data_loc
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#define t_uinfo data.data_uinfo
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#define t_uid data.data_uid
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#define t_gid data.data_gid
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#define t_unspec data.data_unspec
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