diff options
Diffstat (limited to 'adns-0.6/src/types.c')
| -rw-r--r-- | adns-0.6/src/types.c | 1034 |
1 files changed, 0 insertions, 1034 deletions
diff --git a/adns-0.6/src/types.c b/adns-0.6/src/types.c deleted file mode 100644 index 668986f..0000000 --- a/adns-0.6/src/types.c +++ /dev/null @@ -1,1034 +0,0 @@ -/* - * types.c - * - RR-type-specific code, and the machinery to call it - */ -/* - * This file is - * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk> - * - * It is part of adns, which is - * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk> - * Copyright (C) 1999 Tony Finch <dot@dotat.at> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#include <stdlib.h> - -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -#include "internal.h" - -#define R_NOMEM return adns_s_nomemory -#define CSP_ADDSTR(s) do { if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; } while (0) - -/* - * order of sections: - * - * _string (pap) - * _textdata, _qstring (csp) - * _str (mf,cs) - * _intstr (mf,csp,cs) - * _manyistr (mf,cs) - * _txt (pa) - * _inaddr (pa,dip,di) - * _addr (pa,di,csp,cs) - * _domain (pap) - * _host_raw (pa) - * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs) - * _mx_raw (pa,di) - * _mx (pa,di) - * _inthostaddr (mf,cs) - * _ptr (pa) - * _strpair (mf,cs) - * _intstrpair (mf,cs) - * _hinfo (pa) - * _mailbox (pap +pap_mailbox822) - * _rp (pa) - * _soa (pa,mf,cs) - * _flat (mf) - * - * within each section: - * pap_* - * pa_* - * dip_* - * di_* - * mfp_* - * mf_* - * csp_* - * cs_* - */ - -/* - * _qstring (pap,csp) - */ - -static adns_status pap_qstring(const parseinfo *pai, int *cbyte_io, int max, - int *len_r, char **str_r) { - /* Neither len_r nor str_r may be null. - * End of datagram (overrun) is indicated by returning adns_s_invaliddata; - */ - const byte *dgram= pai->dgram; - int l, cbyte; - char *str; - - cbyte= *cbyte_io; - - if (cbyte >= max) return adns_s_invaliddata; - GET_B(cbyte,l); - if (cbyte+l > max) return adns_s_invaliddata; - - str= adns__alloc_interim(pai->qu, l+1); - if (!str) R_NOMEM; - - str[l]= 0; - memcpy(str,dgram+cbyte,l); - - *len_r= l; - *str_r= str; - *cbyte_io= cbyte+l; - - return adns_s_ok; -} - -static adns_status csp_qstring(vbuf *vb, const char *dp, int len) { - unsigned char ch; - char buf[10]; - int cn; - - CSP_ADDSTR("\""); - for (cn=0; cn<len; cn++) { - ch= *dp++; - if (ch == '\\') { - CSP_ADDSTR("\\\\"); - } else if (ch == '"') { - CSP_ADDSTR("\\\""); - } else if (ch >= 32 && ch <= 126) { - if (!adns__vbuf_append(vb,&ch,1)) R_NOMEM; - } else { - sprintf(buf,"\\x%02x",ch); - CSP_ADDSTR(buf); - } - } - CSP_ADDSTR("\""); - - return adns_s_ok; -} - -/* - * _str (mf) - */ - -static void mf_str(adns_query qu, void *datap) { - char **rrp= datap; - - adns__makefinal_str(qu,rrp); -} - -/* - * _intstr (mf) - */ - -static void mf_intstr(adns_query qu, void *datap) { - adns_rr_intstr *rrp= datap; - - adns__makefinal_str(qu,&rrp->str); -} - -/* - * _manyistr (mf) - */ - -static void mf_manyistr(adns_query qu, void *datap) { - adns_rr_intstr **rrp= datap; - adns_rr_intstr *te, *table; - void *tablev; - int tc; - - for (tc=0, te= *rrp; te->i >= 0; te++, tc++); - tablev= *rrp; - adns__makefinal_block(qu,&tablev,sizeof(*te)*(tc+1)); - *rrp= table= tablev; - for (te= *rrp; te->i >= 0; te++) - adns__makefinal_str(qu,&te->str); -} - -/* - * _txt (pa,cs) - */ - -static adns_status pa_txt(const parseinfo *pai, int cbyte, int max, void *datap) { - adns_rr_intstr **rrp= datap, *table, *te; - const byte *dgram= pai->dgram; - int ti, tc, l, startbyte; - adns_status st; - - startbyte= cbyte; - if (cbyte >= max) return adns_s_invaliddata; - tc= 0; - while (cbyte < max) { - GET_B(cbyte,l); - cbyte+= l; - tc++; - } - if (cbyte != max || !tc) return adns_s_invaliddata; - - table= adns__alloc_interim(pai->qu,sizeof(*table)*(tc+1)); - if (!table) R_NOMEM; - - for (cbyte=startbyte, ti=0, te=table; ti<tc; ti++, te++) { - st= pap_qstring(pai, &cbyte, max, &te->i, &te->str); - if (st) return st; - } - assert(cbyte == max); - - te->i= -1; - te->str= 0; - - *rrp= table; - return adns_s_ok; -} - -static adns_status cs_txt(vbuf *vb, const void *datap) { - const adns_rr_intstr *const *rrp= datap; - const adns_rr_intstr *current; - adns_status st; - int spc; - - for (current= *rrp, spc=0; current->i >= 0; current++, spc=1) { - if (spc) CSP_ADDSTR(" "); - st= csp_qstring(vb,current->str,current->i); if (st) return st; - } - return adns_s_ok; -} - -/* - * _hinfo (cs) - */ - -static adns_status cs_hinfo(vbuf *vb, const void *datap) { - const adns_rr_intstrpair *rrp= datap; - adns_status st; - - st= csp_qstring(vb,rrp->array[0].str,rrp->array[0].i); if (st) return st; - CSP_ADDSTR(" "); - st= csp_qstring(vb,rrp->array[1].str,rrp->array[1].i); if (st) return st; - return adns_s_ok; -} - -/* - * _inaddr (pa,dip,di) - */ - -static adns_status pa_inaddr(const parseinfo *pai, int cbyte, int max, void *datap) { - struct in_addr *storeto= datap; - - if (max-cbyte != 4) return adns_s_invaliddata; - memcpy(storeto, pai->dgram + cbyte, 4); - return adns_s_ok; -} - -static int search_sortlist(adns_state ads, struct in_addr ad) { - const struct sortlist *slp; - int i; - - for (i=0, slp=ads->sortlist; - i<ads->nsortlist && !((ad.s_addr & slp->mask.s_addr) == slp->base.s_addr); - i++, slp++); - return i; -} - -static int dip_inaddr(adns_state ads, struct in_addr a, struct in_addr b) { - int ai, bi; - - if (!ads->nsortlist) return 0; - - ai= search_sortlist(ads,a); - bi= search_sortlist(ads,b); - return bi<ai; -} - -static int di_inaddr(adns_state ads, const void *datap_a, const void *datap_b) { - const struct in_addr *ap= datap_a, *bp= datap_b; - - return dip_inaddr(ads,*ap,*bp); -} - -static adns_status cs_inaddr(vbuf *vb, const void *datap) { - const struct in_addr *rrp= datap, rr= *rrp; - const char *ia; - - ia= inet_ntoa(rr); assert(ia); - CSP_ADDSTR(ia); - return adns_s_ok; -} - -/* - * _addr (pa,di,csp,cs) - */ - -static adns_status pa_addr(const parseinfo *pai, int cbyte, int max, void *datap) { - adns_rr_addr *storeto= datap; - const byte *dgram= pai->dgram; - - if (max-cbyte != 4) return adns_s_invaliddata; - storeto->len= sizeof(storeto->addr.inet); - memset(&storeto->addr,0,sizeof(storeto->addr.inet)); - storeto->addr.inet.sin_family= AF_INET; - memcpy(&storeto->addr.inet.sin_addr,dgram+cbyte,4); - return adns_s_ok; -} - -static int di_addr(adns_state ads, const void *datap_a, const void *datap_b) { - const adns_rr_addr *ap= datap_a, *bp= datap_b; - - assert(ap->addr.sa.sa_family == AF_INET); - return dip_inaddr(ads, ap->addr.inet.sin_addr, bp->addr.inet.sin_addr); -} - -static int div_addr(void *context, const void *datap_a, const void *datap_b) { - const adns_state ads= context; - - return di_addr(ads, datap_a, datap_b); -} - -static adns_status csp_addr(vbuf *vb, const adns_rr_addr *rrp) { - const char *ia; - static char buf[30]; - - switch (rrp->addr.inet.sin_family) { - case AF_INET: - CSP_ADDSTR("INET "); - ia= inet_ntoa(rrp->addr.inet.sin_addr); assert(ia); - CSP_ADDSTR(ia); - break; - default: - sprintf(buf,"AF=%u",rrp->addr.sa.sa_family); - CSP_ADDSTR(buf); - break; - } - return adns_s_ok; -} - -static adns_status cs_addr(vbuf *vb, const void *datap) { - const adns_rr_addr *rrp= datap; - - return csp_addr(vb,rrp); -} - -/* - * _domain (pap,csp,cs) - * _dom_raw (pa) - */ - -static adns_status pap_domain(const parseinfo *pai, int *cbyte_io, int max, - char **domain_r, parsedomain_flags flags) { - adns_status st; - char *dm; - - st= adns__parse_domain(pai->qu->ads, pai->serv, pai->qu, &pai->qu->vb, flags, - pai->dgram,pai->dglen, cbyte_io, max); - if (st) return st; - if (!pai->qu->vb.used) return adns_s_invaliddata; - - dm= adns__alloc_interim(pai->qu, pai->qu->vb.used+1); - if (!dm) R_NOMEM; - - dm[pai->qu->vb.used]= 0; - memcpy(dm,pai->qu->vb.buf,pai->qu->vb.used); - - *domain_r= dm; - return adns_s_ok; -} - -static adns_status csp_domain(vbuf *vb, const char *domain) { - CSP_ADDSTR(domain); - if (!*domain) CSP_ADDSTR("."); - return adns_s_ok; -} - -static adns_status cs_domain(vbuf *vb, const void *datap) { - const char *const *domainp= datap; - return csp_domain(vb,*domainp); -} - -static adns_status pa_dom_raw(const parseinfo *pai, int cbyte, int max, void *datap) { - char **rrp= datap; - adns_status st; - - st= pap_domain(pai, &cbyte, max, rrp, pdf_quoteok); - if (st) return st; - - if (cbyte != max) return adns_s_invaliddata; - return adns_s_ok; -} - -/* - * _host_raw (pa) - */ - -static adns_status pa_host_raw(const parseinfo *pai, int cbyte, int max, void *datap) { - char **rrp= datap; - adns_status st; - - st= pap_domain(pai, &cbyte, max, rrp, - pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); - if (st) return st; - - if (cbyte != max) return adns_s_invaliddata; - return adns_s_ok; -} - -/* - * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +icb_hostaddr, pap_findaddrs) - */ - -static adns_status pap_findaddrs(const parseinfo *pai, adns_rr_hostaddr *ha, - int *cbyte_io, int count, int dmstart) { - int rri, naddrs; - int type, class, rdlen, rdstart, ownermatched; - unsigned long ttl; - adns_status st; - - for (rri=0, naddrs=-1; rri<count; rri++) { - st= adns__findrr_anychk(pai->qu, pai->serv, pai->dgram, pai->dglen, cbyte_io, - &type, &class, &ttl, &rdlen, &rdstart, - pai->dgram, pai->dglen, dmstart, &ownermatched); - if (st) return st; - if (!ownermatched || class != DNS_CLASS_IN || type != adns_r_a) { - if (naddrs>0) break; else continue; - } - if (naddrs == -1) { - naddrs= 0; - } - if (!adns__vbuf_ensure(&pai->qu->vb, (naddrs+1)*sizeof(adns_rr_addr))) R_NOMEM; - adns__update_expires(pai->qu,ttl,pai->now); - st= pa_addr(pai, rdstart,rdstart+rdlen, - pai->qu->vb.buf + naddrs*sizeof(adns_rr_addr)); - if (st) return st; - naddrs++; - } - if (naddrs >= 0) { - ha->addrs= adns__alloc_interim(pai->qu, naddrs*sizeof(adns_rr_addr)); - if (!ha->addrs) R_NOMEM; - memcpy(ha->addrs, pai->qu->vb.buf, naddrs*sizeof(adns_rr_addr)); - ha->naddrs= naddrs; - ha->astatus= adns_s_ok; - - adns__isort(ha->addrs, naddrs, sizeof(adns_rr_addr), pai->qu->vb.buf, - div_addr, pai->ads); - } - return adns_s_ok; -} - -static void icb_hostaddr(adns_query parent, adns_query child) { - adns_answer *cans= child->answer; - adns_rr_hostaddr *rrp= child->ctx.info.hostaddr; - adns_state ads= parent->ads; - adns_status st; - - st= cans->status; - rrp->astatus= st; - rrp->naddrs= (st>0 && st<=adns_s_max_tempfail) ? -1 : cans->nrrs; - rrp->addrs= cans->rrs.addr; - adns__transfer_interim(child, parent, rrp->addrs, rrp->naddrs*sizeof(adns_rr_addr)); - - if (parent->children.head) { - LIST_LINK_TAIL(ads->childw,parent); - } else { - adns__query_done(parent); - } -} - -static adns_status pap_hostaddr(const parseinfo *pai, int *cbyte_io, - int max, adns_rr_hostaddr *rrp) { - adns_status st; - int dmstart, cbyte; - qcontext ctx; - int id; - adns_query nqu; - adns_queryflags nflags; - - dmstart= cbyte= *cbyte_io; - st= pap_domain(pai, &cbyte, max, &rrp->host, - pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); - if (st) return st; - *cbyte_io= cbyte; - - rrp->astatus= adns_s_ok; - rrp->naddrs= -1; - rrp->addrs= 0; - - cbyte= pai->nsstart; - - st= pap_findaddrs(pai, rrp, &cbyte, pai->nscount, dmstart); - if (st) return st; - if (rrp->naddrs != -1) return adns_s_ok; - - st= pap_findaddrs(pai, rrp, &cbyte, pai->arcount, dmstart); - if (st) return st; - if (rrp->naddrs != -1) return adns_s_ok; - - st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id, - pai->dgram, pai->dglen, dmstart, - adns_r_addr, adns_qf_quoteok_query); - if (st) return st; - - ctx.ext= 0; - ctx.callback= icb_hostaddr; - ctx.info.hostaddr= rrp; - - nflags= adns_qf_quoteok_query; - if (!(pai->qu->flags & adns_qf_cname_loose)) nflags |= adns_qf_cname_forbid; - - st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr), - &pai->qu->vb, id, nflags, pai->now, &ctx); - if (st) return st; - - nqu->parent= pai->qu; - LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.); - - return adns_s_ok; -} - -static adns_status pa_hostaddr(const parseinfo *pai, int cbyte, int max, void *datap) { - adns_rr_hostaddr *rrp= datap; - adns_status st; - - st= pap_hostaddr(pai, &cbyte, max, rrp); - if (st) return st; - if (cbyte != max) return adns_s_invaliddata; - - return adns_s_ok; -} - -static int dip_hostaddr(adns_state ads, const adns_rr_hostaddr *ap, const adns_rr_hostaddr *bp) { - if (ap->astatus != bp->astatus) return ap->astatus; - if (ap->astatus) return 0; - - assert(ap->addrs[0].addr.sa.sa_family == AF_INET); - assert(bp->addrs[0].addr.sa.sa_family == AF_INET); - return dip_inaddr(ads, - ap->addrs[0].addr.inet.sin_addr, - bp->addrs[0].addr.inet.sin_addr); -} - -static int di_hostaddr(adns_state ads, const void *datap_a, const void *datap_b) { - const adns_rr_hostaddr *ap= datap_a, *bp= datap_b; - - return dip_hostaddr(ads, ap,bp); -} - -static void mfp_hostaddr(adns_query qu, adns_rr_hostaddr *rrp) { - void *tablev; - - adns__makefinal_str(qu,&rrp->host); - tablev= rrp->addrs; - adns__makefinal_block(qu, &tablev, rrp->naddrs*sizeof(*rrp->addrs)); - rrp->addrs= tablev; -} - -static void mf_hostaddr(adns_query qu, void *datap) { - adns_rr_hostaddr *rrp= datap; - - mfp_hostaddr(qu,rrp); -} - -static adns_status csp_hostaddr(vbuf *vb, const adns_rr_hostaddr *rrp) { - const char *errstr; - adns_status st; - char buf[20]; - int i; - - st= csp_domain(vb,rrp->host); if (st) return st; - - CSP_ADDSTR(" "); - CSP_ADDSTR(adns_errtypeabbrev(rrp->astatus)); - - sprintf(buf," %d ",rrp->astatus); - CSP_ADDSTR(buf); - - CSP_ADDSTR(adns_errabbrev(rrp->astatus)); - CSP_ADDSTR(" "); - - errstr= adns_strerror(rrp->astatus); - st= csp_qstring(vb,errstr,strlen(errstr)); if (st) return st; - - if (rrp->naddrs >= 0) { - CSP_ADDSTR(" ("); - for (i=0; i<rrp->naddrs; i++) { - CSP_ADDSTR(" "); - st= csp_addr(vb,&rrp->addrs[i]); - } - CSP_ADDSTR(" )"); - } else { - CSP_ADDSTR(" ?"); - } - return adns_s_ok; -} - -static adns_status cs_hostaddr(vbuf *vb, const void *datap) { - const adns_rr_hostaddr *rrp= datap; - - return csp_hostaddr(vb,rrp); -} - -/* - * _mx_raw (pa,di) - */ - -static adns_status pa_mx_raw(const parseinfo *pai, int cbyte, int max, void *datap) { - const byte *dgram= pai->dgram; - adns_rr_intstr *rrp= datap; - adns_status st; - int pref; - - if (cbyte+2 > max) return adns_s_invaliddata; - GET_W(cbyte,pref); - rrp->i= pref; - st= pap_domain(pai, &cbyte, max, &rrp->str, - pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); - if (st) return st; - - if (cbyte != max) return adns_s_invaliddata; - return adns_s_ok; -} - -static int di_mx_raw(adns_state ads, const void *datap_a, const void *datap_b) { - const adns_rr_intstr *ap= datap_a, *bp= datap_b; - - if (ap->i < bp->i) return 0; - if (ap->i > bp->i) return 1; - return 0; -} - -/* - * _mx (pa,di) - */ - -static adns_status pa_mx(const parseinfo *pai, int cbyte, int max, void *datap) { - const byte *dgram= pai->dgram; - adns_rr_inthostaddr *rrp= datap; - adns_status st; - int pref; - - if (cbyte+2 > max) return adns_s_invaliddata; - GET_W(cbyte,pref); - rrp->i= pref; - st= pap_hostaddr(pai, &cbyte, max, &rrp->ha); - if (st) return st; - - if (cbyte != max) return adns_s_invaliddata; - return adns_s_ok; -} - -static int di_mx(adns_state ads, const void *datap_a, const void *datap_b) { - const adns_rr_inthostaddr *ap= datap_a, *bp= datap_b; - - if (ap->i < bp->i) return 0; - if (ap->i > bp->i) return 1; - return dip_hostaddr(ads, &ap->ha, &bp->ha); -} - -/* - * _inthostaddr (mf,cs) - */ - -static void mf_inthostaddr(adns_query qu, void *datap) { - adns_rr_inthostaddr *rrp= datap; - - mfp_hostaddr(qu,&rrp->ha); -} - -static adns_status cs_inthostaddr(vbuf *vb, const void *datap) { - const adns_rr_inthostaddr *rrp= datap; - char buf[10]; - - sprintf(buf,"%u ",rrp->i); - CSP_ADDSTR(buf); - - return csp_hostaddr(vb,&rrp->ha); -} - -/* - * _inthost (cs) - */ - -static adns_status cs_inthost(vbuf *vb, const void *datap) { - const adns_rr_intstr *rrp= datap; - char buf[10]; - - sprintf(buf,"%u ",rrp->i); - CSP_ADDSTR(buf); - return csp_domain(vb,rrp->str); -} - -/* - * _ptr (pa, +icb_ptr) - */ - -static void icb_ptr(adns_query parent, adns_query child) { - adns_answer *cans= child->answer; - const adns_rr_addr *queried, *found; - adns_state ads= parent->ads; - int i; - - if (cans->status == adns_s_nxdomain || cans->status == adns_s_nodata) { - adns__query_fail(parent,adns_s_inconsistent); - return; - } else if (cans->status) { - adns__query_fail(parent,cans->status); - return; - } - - queried= &parent->ctx.info.ptr_parent_addr; - for (i=0, found=cans->rrs.addr; i<cans->nrrs; i++, found++) { - if (queried->len == found->len && - !memcmp(&queried->addr,&found->addr,queried->len)) { - if (!parent->children.head) { - adns__query_done(parent); - return; - } else { - LIST_LINK_TAIL(ads->childw,parent); - return; - } - } - } - - adns__query_fail(parent,adns_s_inconsistent); -} - -static adns_status pa_ptr(const parseinfo *pai, int dmstart, int max, void *datap) { - static const char *(expectdomain[])= { DNS_INADDR_ARPA }; - - char **rrp= datap; - adns_status st; - adns_rr_addr *ap; - findlabel_state fls; - char *ep; - byte ipv[4]; - char labbuf[4]; - int cbyte, i, lablen, labstart, l, id; - adns_query nqu; - qcontext ctx; - - cbyte= dmstart; - st= pap_domain(pai, &cbyte, max, rrp, - pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); - if (st) return st; - if (cbyte != max) return adns_s_invaliddata; - - ap= &pai->qu->ctx.info.ptr_parent_addr; - if (!ap->len) { - adns__findlabel_start(&fls, pai->ads, -1, pai->qu, - pai->qu->query_dgram, pai->qu->query_dglen, - pai->qu->query_dglen, DNS_HDRSIZE, 0); - for (i=0; i<4; i++) { - st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st); - if (lablen<=0 || lablen>3) return adns_s_querydomainwrong; - memcpy(labbuf, pai->qu->query_dgram + labstart, lablen); labbuf[lablen]= 0; - ipv[3-i]= strtoul(labbuf,&ep,10); if (*ep) return adns_s_querydomainwrong; - if (lablen>1 && pai->qu->query_dgram[labstart]=='0') - return adns_s_querydomainwrong; - } - for (i=0; i<sizeof(expectdomain)/sizeof(*expectdomain); i++) { - st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st); - l= strlen(expectdomain[i]); - if (lablen != l || memcmp(pai->qu->query_dgram + labstart, expectdomain[i], l)) - return adns_s_querydomainwrong; - } - st= adns__findlabel_next(&fls,&lablen,0); assert(!st); - if (lablen) return adns_s_querydomainwrong; - - ap->len= sizeof(struct sockaddr_in); - memset(&ap->addr,0,sizeof(ap->addr.inet)); - ap->addr.inet.sin_family= AF_INET; - ap->addr.inet.sin_addr.s_addr= - htonl((ipv[0]<<24) | (ipv[1]<<16) | (ipv[2]<<8) | (ipv[3])); - } - - st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id, - pai->dgram, pai->dglen, dmstart, - adns_r_addr, adns_qf_quoteok_query); - if (st) return st; - - ctx.ext= 0; - ctx.callback= icb_ptr; - memset(&ctx.info,0,sizeof(ctx.info)); - st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr), - &pai->qu->vb, id, - adns_qf_quoteok_query, pai->now, &ctx); - if (st) return st; - - nqu->parent= pai->qu; - LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.); - return adns_s_ok; -} - -/* - * _strpair (mf) - */ - -static void mf_strpair(adns_query qu, void *datap) { - adns_rr_strpair *rrp= datap; - - adns__makefinal_str(qu,&rrp->array[0]); - adns__makefinal_str(qu,&rrp->array[1]); -} - -/* - * _intstrpair (mf) - */ - -static void mf_intstrpair(adns_query qu, void *datap) { - adns_rr_intstrpair *rrp= datap; - - adns__makefinal_str(qu,&rrp->array[0].str); - adns__makefinal_str(qu,&rrp->array[1].str); -} - -/* - * _hinfo (pa) - */ - -static adns_status pa_hinfo(const parseinfo *pai, int cbyte, int max, void *datap) { - adns_rr_intstrpair *rrp= datap; - adns_status st; - int i; - - for (i=0; i<2; i++) { - st= pap_qstring(pai, &cbyte, max, &rrp->array[i].i, &rrp->array[i].str); - if (st) return st; - } - - if (cbyte != max) return adns_s_invaliddata; - - return adns_s_ok; -} - -/* - * _mailbox (pap,cs) - */ - -static adns_status pap_mailbox822(const parseinfo *pai, int *cbyte_io, int max, - char **mb_r) { - int lablen, labstart, i, needquote, c, r, neednorm; - const unsigned char *p; - char *str; - findlabel_state fls; - adns_status st; - vbuf *vb; - - vb= &pai->qu->vb; - vb->used= 0; - adns__findlabel_start(&fls, pai->ads, - -1, pai->qu, - pai->dgram, pai->dglen, max, - *cbyte_io, cbyte_io); - st= adns__findlabel_next(&fls,&lablen,&labstart); - if (!lablen) { - adns__vbuf_appendstr(vb,"."); - goto x_ok; - } - - neednorm= 1; - for (i=0, needquote=0, p= pai->dgram+labstart; i<lablen; i++) { - c= *p++; - if ((c&~128) < 32 || (c&~128) == 127) return adns_s_invaliddata; - if (c == '.' && !neednorm) neednorm= 1; - else if (c==' ' || ctype_822special(c)) needquote++; - else neednorm= 0; - } - - if (needquote || neednorm) { - r= adns__vbuf_ensure(vb, lablen+needquote+4); if (!r) R_NOMEM; - adns__vbuf_appendq(vb,"\"",1); - for (i=0, needquote=0, p= pai->dgram+labstart; i<lablen; i++, p++) { - c= *p; - if (c == '"' || c=='\\') adns__vbuf_appendq(vb,"\\",1); - adns__vbuf_appendq(vb,p,1); - } - adns__vbuf_appendq(vb,"\"",1); - } else { - r= adns__vbuf_append(vb, pai->dgram+labstart, lablen); if (!r) R_NOMEM; - } - - r= adns__vbuf_appendstr(vb,"@"); if (!r) R_NOMEM; - - st= adns__parse_domain_more(&fls,pai->ads, pai->qu,vb,0, pai->dgram); - if (st) return st; - - x_ok: - str= adns__alloc_interim(pai->qu, vb->used+1); if (!str) R_NOMEM; - memcpy(str,vb->buf,vb->used); - str[vb->used]= 0; - *mb_r= str; - return adns_s_ok; -} - -static adns_status pap_mailbox(const parseinfo *pai, int *cbyte_io, int max, - char **mb_r) { - if (pai->qu->typei->type & adns__qtf_mail822) { - return pap_mailbox822(pai, cbyte_io, max, mb_r); - } else { - return pap_domain(pai, cbyte_io, max, mb_r, pdf_quoteok); - } -} - -static adns_status csp_mailbox(vbuf *vb, const char *mailbox) { - return csp_domain(vb,mailbox); -} - -/* - * _rp (pa,cs) - */ - -static adns_status pa_rp(const parseinfo *pai, int cbyte, int max, void *datap) { - adns_rr_strpair *rrp= datap; - adns_status st; - - st= pap_mailbox(pai, &cbyte, max, &rrp->array[0]); - if (st) return st; - - st= pap_domain(pai, &cbyte, max, &rrp->array[1], pdf_quoteok); - if (st) return st; - - if (cbyte != max) return adns_s_invaliddata; - return adns_s_ok; -} - -static adns_status cs_rp(vbuf *vb, const void *datap) { - const adns_rr_strpair *rrp= datap; - adns_status st; - - st= csp_mailbox(vb,rrp->array[0]); if (st) return st; - CSP_ADDSTR(" "); - st= csp_domain(vb,rrp->array[1]); if (st) return st; - - return adns_s_ok; -} - -/* - * _soa (pa,mf,cs) - */ - -static adns_status pa_soa(const parseinfo *pai, int cbyte, int max, void *datap) { - adns_rr_soa *rrp= datap; - const byte *dgram= pai->dgram; - adns_status st; - int msw, lsw, i; - - st= pap_domain(pai, &cbyte, max, &rrp->mname, - pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); - if (st) return st; - - st= pap_mailbox(pai, &cbyte, max, &rrp->rname); - if (st) return st; - - if (cbyte+20 != max) return adns_s_invaliddata; - - for (i=0; i<5; i++) { - GET_W(cbyte,msw); - GET_W(cbyte,lsw); - (&rrp->serial)[i]= (msw<<16) | lsw; - } - - return adns_s_ok; -} - -static void mf_soa(adns_query qu, void *datap) { - adns_rr_soa *rrp= datap; - - adns__makefinal_str(qu,&rrp->mname); - adns__makefinal_str(qu,&rrp->rname); -} - -static adns_status cs_soa(vbuf *vb, const void *datap) { - const adns_rr_soa *rrp= datap; - char buf[20]; - int i; - adns_status st; - - st= csp_domain(vb,rrp->mname); if (st) return st; - CSP_ADDSTR(" "); - st= csp_mailbox(vb,rrp->rname); if (st) return st; - - for (i=0; i<5; i++) { - sprintf(buf," %lu",(&rrp->serial)[i]); - CSP_ADDSTR(buf); - } - - return adns_s_ok; -} - -/* - * _flat (mf) - */ - -static void mf_flat(adns_query qu, void *data) { } - -/* - * Now the table. - */ - -#define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member)) - -#define DEEP_MEMB(memb) TYPESZ_M(memb), mf_##memb, cs_##memb -#define FLAT_MEMB(memb) TYPESZ_M(memb), mf_flat, cs_##memb - -#define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \ - { adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_##memb, printer, parser, comparer } -#define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \ - { adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_flat, printer, parser, comparer } - -static const typeinfo typeinfos[] = { -/* Must be in ascending order of rrtype ! */ -/* mem-mgmt code rrt fmt member parser comparer printer */ - -FLAT_TYPE(a, "A", 0, inaddr, pa_inaddr, di_inaddr, cs_inaddr ), -DEEP_TYPE(ns_raw, "NS", "raw", str, pa_host_raw,0, cs_domain ), -DEEP_TYPE(cname, "CNAME", 0, str, pa_dom_raw, 0, cs_domain ), -DEEP_TYPE(soa_raw,"SOA", "raw", soa, pa_soa, 0, cs_soa ), -DEEP_TYPE(ptr_raw,"PTR", "raw", str, pa_host_raw,0, cs_domain ), -DEEP_TYPE(hinfo, "HINFO", 0, intstrpair, pa_hinfo, 0, cs_hinfo ), -DEEP_TYPE(mx_raw, "MX", "raw", intstr, pa_mx_raw, di_mx_raw, cs_inthost ), -DEEP_TYPE(txt, "TXT", 0, manyistr, pa_txt, 0, cs_txt ), -DEEP_TYPE(rp_raw, "RP", "raw", strpair, pa_rp, 0, cs_rp ), - -FLAT_TYPE(addr, "A", "addr", addr, pa_addr, di_addr, cs_addr ), -DEEP_TYPE(ns, "NS", "+addr", hostaddr, pa_hostaddr,di_hostaddr,cs_hostaddr ), -DEEP_TYPE(ptr, "PTR","checked",str, pa_ptr, 0, cs_domain ), -DEEP_TYPE(mx, "MX", "+addr", inthostaddr,pa_mx, di_mx, cs_inthostaddr), - -DEEP_TYPE(soa, "SOA","822", soa, pa_soa, 0, cs_soa ), -DEEP_TYPE(rp, "RP", "822", strpair, pa_rp, 0, cs_rp ), -}; - -const typeinfo *adns__findtype(adns_rrtype type) { - const typeinfo *begin, *end, *mid; - - begin= typeinfos; end= typeinfos+(sizeof(typeinfos)/sizeof(typeinfo)); - - while (begin < end) { - mid= begin + ((end-begin)>>1); - if (mid->type == type) return mid; - if (type > mid->type) begin= mid+1; - else end= mid; - } - return 0; -} |