* - RR-type-specific code, and the machinery to call it
*/
/*
- * This file is part of adns, which is Copyright (C) 1997, 1998 Ian Jackson
+ * This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
*
* 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
#include <stdlib.h>
#include <string.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_nolocalmem
+#define R_NOMEM return adns_s_nomemory
#define CSP_ADDSTR(s) if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; else;
/*
return adns_s_ok;
}
-static int dip_inaddr(struct in_addr a, struct in_addr b) {
- /* fixme implement sortlist */
- return 0;
+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(const void *datap_a, const void *datap_b) {
+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(*ap,*bp);
+ return dip_inaddr(ads,*ap,*bp);
}
static adns_status cs_inaddr(vbuf *vb, const void *datap) {
return adns_s_ok;
}
-static int di_addr(const void *datap_a, const void *datap_b) {
+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(ap->addr.inet.sin_addr,bp->addr.inet.sin_addr);
+ 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];
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, &rdlen, &rdstart,
+ &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) {
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;
ha->naddrs= naddrs;
ha->astatus= adns_s_ok;
- adns__isort(ha->addrs, naddrs, sizeof(adns_rr_addr), pai->qu->vb.buf, di_addr);
+ adns__isort(ha->addrs, naddrs, sizeof(adns_rr_addr), pai->qu->vb.buf,
+ div_addr, pai->ads);
}
return adns_s_ok;
}
qcontext ctx;
int id;
adns_query nqu;
+ adns_queryflags nflags;
dmstart= cbyte= *cbyte_io;
st= pap_domain(pai, &cbyte, max, &rrp->host,
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,
- adns_qf_quoteok_query, pai->now, 0, &ctx);
+ &pai->qu->vb, id, nflags, pai->now, &ctx);
if (st) return st;
nqu->parent= pai->qu;
return adns_s_ok;
}
-static int dip_hostaddr(const adns_rr_hostaddr *ap, const adns_rr_hostaddr *bp) {
+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(ap->addrs[0].addr.inet.sin_addr, bp->addrs[0].addr.inet.sin_addr);
+ return dip_inaddr(ads,
+ ap->addrs[0].addr.inet.sin_addr,
+ bp->addrs[0].addr.inet.sin_addr);
}
-static int di_hostaddr(const void *datap_a, const void *datap_b) {
+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(ap,bp);
+ return dip_hostaddr(ads, ap,bp);
}
static void mfp_hostaddr(adns_query qu, adns_rr_hostaddr *rrp) {
return adns_s_ok;
}
-static int di_mx_raw(const void *datap_a, const void *datap_b) {
+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;
return adns_s_ok;
}
-static int di_mx(const void *datap_a, const void *datap_b) {
+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(&ap->ha,&bp->ha);
+ return dip_hostaddr(ads, &ap->ha, &bp->ha);
}
/*
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_invalidquerydomain;
+ 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_invalidquerydomain;
+ 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_invalidquerydomain;
+ 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_invalidquerydomain;
+ return adns_s_querydomainwrong;
}
st= adns__findlabel_next(&fls,&lablen,0); assert(!st);
- if (lablen) return adns_s_invalidquerydomain;
+ if (lablen) return adns_s_querydomainwrong;
ap->len= sizeof(struct sockaddr_in);
memset(&ap->addr,0,sizeof(ap->addr.inet));
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, 0, &ctx);
+ adns_qf_quoteok_query, pai->now, &ctx);
if (st) return st;
nqu->parent= pai->qu;
static adns_status pap_mailbox(const parseinfo *pai, int *cbyte_io, int max,
char **mb_r) {
- return pap_domain(pai, cbyte_io, max, mb_r, pdf_quoteok);
- /* fixme: mailbox quoting */
+ 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 (strchr("()<>@,;:\\\".[]",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 (strchr("()<>@,;:\\\".[]",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;
}
/*
~ianmdlvl / adns.git / blobdiff