*/
#include <stdlib.h>
+#include <string.h>
#include <arpa/inet.h>
#include "internal.h"
-static adns_status pa_inaddr(adns_query qu, int serv,
- const byte *dgram, int dglen, int cbyte, int max,
- void *store_r) {
- struct in_addr *dr= store_r;
+#define R_NOMEM return adns_s_nolocalmem
+#define CSP_ADDSTR(s) if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; else;
+
+static int dip_inaddr(struct in_addr a, struct in_addr b) {
+ /* fixme implement sortlist */
+ return 0;
+}
+
+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(dr,dgram+cbyte,4);
+ memcpy(storeto, pai->dgram + cbyte, 4);
+ return adns_s_ok;
+}
+
+static int di_inaddr(const void *datap_a, const void *datap_b) {
+ const struct in_addr *ap= datap_a, *bp= datap_b;
+
+ return dip_inaddr(*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;
+}
+
+static adns_status pa_addr(const parseinfo *pai, int cbyte, int max, void *datap) {
+ adns_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;
+ storeto->addr.inet.sin_port= 0;
+ memcpy(&storeto->addr.inet.sin_addr,dgram+cbyte,4);
return adns_s_ok;
}
-static adns_status cs_inaddr(vbuf *vb, const void *data) {
- const struct in_addr *dp= data;
+static int di_addr(const void *datap_a, const void *datap_b) {
+ const adns_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);
+}
+
+static adns_status csp_addr(vbuf *vb, const adns_addr *rrp) {
const char *ia;
+ static char buf[30];
+
+ switch (rrp->addr.inet.sin_family) {
+ case AF_INET:
+ CSP_ADDSTR("AF_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_addr *rrp= datap;
+
+ return csp_addr(vb,rrp);
+}
+
+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 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;
+}
+
+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 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;
+ 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,
+ 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_addr))) R_NOMEM;
+ st= pa_addr(pai, rdstart,rdstart+rdlen, pai->qu->vb.buf + naddrs*sizeof(adns_addr));
+ if (st) return st;
+ naddrs++;
+ }
+ if (naddrs >= 0) {
+ ha->addrs= adns__alloc_interim(pai->qu, naddrs*sizeof(adns_addr));
+ if (!ha->addrs) R_NOMEM;
+ memcpy(ha->addrs, pai->qu->vb.buf, naddrs*sizeof(adns_addr));
+ ha->naddrs= naddrs;
+ ha->astatus= adns_s_ok;
+
+ adns__isort(ha->addrs, naddrs, sizeof(adns_addr), pai->qu->vb.buf, di_addr);
+ }
+ return adns_s_ok;
+}
+
+static adns_status pap_hostaddr(const parseinfo *pai, int *cbyte_io,
+ int max, adns_rr_hostaddr *rrp) {
+ adns_status st;
+ int dmstart, cbyte;
+
+ 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;
+
+ rrp->naddrs= 0; /* fixme additional section didn't have required data */
+ rrp->astatus= adns_s_notimplemented;
+
+ 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;
- ia= inet_ntoa(*dp); assert(ia);
- return adns__vbuf_appendstr(vb,ia) ? adns_s_ok : adns_s_nolocalmem;
+ st= pap_hostaddr(pai, &cbyte, max, rrp);
+ if (st) return st;
+ if (cbyte != max) return adns_s_invaliddata;
+
+ return adns_s_ok;
}
-static adns_status pa_domain_raw(adns_query qu, int serv,
- const byte *dgram, int dglen, int cbyte, int max,
- void *store_r) {
- char **dpp= store_r;
+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;
- vbuf vb;
- char *dp;
+ 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 dip_hostaddr(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);
+}
- adns__vbuf_init(&vb);
- st= adns__parse_domain(qu->ads,serv,qu,&vb,qu->flags,
- dgram,dglen, &cbyte,max);
- if (st) goto x_error;
+static int di_hostaddr(const void *datap_a, const void *datap_b) {
+ const adns_rr_hostaddr *ap= datap_a, *bp= datap_b;
- dp= adns__alloc_interim(qu,vb.used+1);
- if (!dp) { st= adns_s_nolocalmem; goto x_error; }
+ return dip_hostaddr(ap,bp);
+}
- dp[vb.used]= 0;
- memcpy(dp,vb.buf,vb.used);
+static int di_mx_raw(const void *datap_a, const void *datap_b) {
+ const adns_rr_intstr *ap= datap_a, *bp= datap_b;
- if (cbyte != max) { st= adns_s_invaliddata; goto x_error; }
+ if (ap->i < bp->i) return 0;
+ if (ap->i > bp->i) return 1;
+ return 0;
+}
- st= adns_s_ok;
- *dpp= dp;
+static int di_mx(const void *datap_a, const void *datap_b) {
+ const adns_rr_inthostaddr *ap= datap_a, *bp= datap_b;
- x_error:
- adns__vbuf_free(&vb);
- return st;
+ if (ap->i < bp->i) return 0;
+ if (ap->i > bp->i) return 1;
+ return dip_hostaddr(&ap->ha,&bp->ha);
}
-static void mf_str(adns_query qu, void *data) {
- char **ddp= data;
+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;
+
+ startbyte= cbyte;
+ if (cbyte >= max) return adns_s_invaliddata;
+ tc= 0;
+ while (cbyte < max) {
+ GET_B(cbyte,l);
+ cbyte+= l;
+ }
+ if (cbyte != max) return adns_s_invaliddata;
- adns__makefinal_str(qu,ddp);
+ 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++) {
+ GET_B(cbyte,l);
+ te->str= adns__alloc_interim(pai->qu, l+1);
+ if (!te->str) R_NOMEM;
+ te->str[l]= 0;
+ memcpy(te->str,dgram+cbyte,l);
+ te->i= l;
+ }
+ assert(cbyte == max);
+
+ te->i= -1;
+ te->str= 0;
+
+ *rrp= table;
+ return adns_s_ok;
}
-static int csp_qstring(vbuf *vb, const char *dp) {
+static adns_status csp_textdata(vbuf *vb, const char *dp, int len) {
unsigned char ch;
char buf[10];
+ int cn;
- if (!adns__vbuf_append(vb,"\"",1)) return 0;
-
- while ((ch= *dp++)) {
+ CSP_ADDSTR("\"");
+ for (cn=0; cn<len; cn++) {
+ ch= *dp++;
if (ch >= 32 && ch <= 126 && ch != '"' && ch != '\\') {
- if (!adns__vbuf_append(vb,&ch,1)) return 0;
+ if (!adns__vbuf_append(vb,&ch,1)) R_NOMEM;
} else {
sprintf(buf,"\\%02x",ch);
- if (!adns__vbuf_appendstr(vb,buf)) return 0;
+ CSP_ADDSTR(buf);
}
}
+ CSP_ADDSTR("\"");
- if (!adns__vbuf_append(vb,"\"",1)) return 0;
- return 1;
+ return adns_s_ok;
+}
+
+static adns_status csp_qstring(vbuf *vb, const char *dp) {
+ return csp_textdata(vb, dp, strlen(dp));
+}
+
+static adns_status cs_str(vbuf *vb, const void *datap) {
+ const char *const *rrp= datap;
+
+ return csp_qstring(vb,*rrp);
+}
+
+static adns_status cs_intstr(vbuf *vb, const void *datap) {
+ const adns_rr_intstr *rrp= datap;
+ char buf[10];
+
+ sprintf(buf,"%u ",rrp->i);
+ CSP_ADDSTR(buf);
+ return csp_qstring(vb,rrp->str);
+}
+
+static adns_status cs_manyistr(vbuf *vb, const void *datap) {
+ const adns_rr_intstr *const *rrp= datap;
+ const adns_rr_intstr *current;
+ adns_status st;
+ int spc;
+
+ for (spc=0, current= *rrp; current->i >= 0; current++) {
+ if (spc) CSP_ADDSTR(" ");
+ st= csp_textdata(vb,current->str,current->i); if (st) return st;
+ }
+ return adns_s_ok;
}
-static adns_status cs_str(vbuf *vb, const void *data) {
- const char *const *dpp= data;
+static void mf_str(adns_query qu, void *datap) {
+ char **rrp= datap;
- return csp_qstring(vb,*dpp) ? adns_s_ok : adns_s_nolocalmem;
+ adns__makefinal_str(qu,rrp);
+}
+
+static void mf_intstr(adns_query qu, void *datap) {
+ adns_rr_intstr *rrp= datap;
+
+ adns__makefinal_str(qu,&rrp->str);
+}
+
+static adns_status csp_hostaddr(vbuf *vb, const adns_rr_hostaddr *rrp) {
+ const char *to_add;
+ adns_status st;
+ int i;
+
+ st= csp_qstring(vb,rrp->host); if (st) return st;
+
+ if (rrp->astatus) {
+ CSP_ADDSTR(" - ");
+ CSP_ADDSTR(adns_strerror(rrp->astatus));
+ } else {
+ assert(rrp->naddrs > 0);
+ for (i=0, to_add= ": "; i<rrp->naddrs; i++, to_add= ", ") {
+ CSP_ADDSTR(to_add);
+ st= csp_addr(vb,&rrp->addrs[i]);
+ }
+ }
+ 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);
+}
+
+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);
+}
+
+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 void mf_inthostaddr(adns_query qu, void *datap) {
+ adns_rr_inthostaddr *rrp= datap;
+
+ mfp_hostaddr(qu,&rrp->ha);
+}
+
+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);
}
static void mf_flat(adns_query qu, void *data) { }
#define TYPE_SF(size,func,cp,free) size, pa_##func, mf_##free, cs_##cp
#define TYPE_SN(size,func,cp) size, pa_##func, mf_flat, cs_##cp
-#define TYPESZ_M(member) (sizeof(((adns_answer*)0)->rrs.member))
+#define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member))
#define TYPE_MF(memb,parse) TYPE_SF(TYPESZ_M(memb),parse,memb,memb)
#define TYPE_MN(memb,parse) TYPE_SN(TYPESZ_M(memb),parse,memb)
static const typeinfo typeinfos[] = {
/* Must be in ascending order of rrtype ! */
- /* rr type code rrt fmt mem.mgmt member parser */
-
- { adns_r_a, "A", 0, FLAT_MEMB(inaddr), pa_inaddr },
- { adns_r_ns_raw, "NS", "raw", DEEP_MEMB(str), pa_domain_raw },
- { adns_r_cname, "CNAME", 0, DEEP_MEMB(str), pa_domain_raw },
-#if 0 /*fixme*/
- { adns_r_soa_raw, "SOA", "raw", DEEP_MEMB(soa), pa_soa },
+ /* rr type code rrt fmt mem.mgmt member parser comparer */
+
+ { adns_r_a, "A", 0, FLAT_MEMB(inaddr), pa_inaddr, di_inaddr },
+ { adns_r_ns_raw, "NS", "raw", DEEP_MEMB(str), pa_host_raw, 0 },
+ { adns_r_cname, "CNAME", 0, DEEP_MEMB(str), pa_host_raw, 0 },
+#if 0 /*fixme*/
+ { adns_r_soa_raw, "SOA", "raw", DEEP_MEMB(soa), pa_soa, 0 },
+#endif
+ { adns_r_ptr_raw, "PTR", "raw", DEEP_MEMB(str), pa_host_raw, 0 },
+#if 0 /*fixme*/
+ { adns_r_hinfo, "HINFO", 0, DEEP_MEMB(strpair), pa_hinfo, 0 },
+#endif
+ { adns_r_mx_raw, "MX", "raw", DEEP_MEMB(intstr), pa_mx_raw, di_mx_raw },
+ { adns_r_txt, "TXT", 0, DEEP_MEMB(manyistr), pa_txt, 0 },
+#if 0 /*fixme*/
+ { adns_r_rp_raw, "RP", "raw", DEEP_MEMB(strpair), pa_rp, 0 },
+#endif
+
+ { adns_r_addr, "A", "addr", FLAT_MEMB(addr), pa_addr, di_addr },
+ { adns_r_ns, "NS", "+addr", DEEP_MEMB(hostaddr), pa_hostaddr, di_hostaddr },
+#if 0 /*fixme*/
+ { adns_r_ptr, "PTR","checked", DEEP_MEMB(str), pa_ptr, 0 },
#endif
- { adns_r_ptr_raw, "PTR", "raw", DEEP_MEMB(str), pa_domain_raw },
-#if 0 /*fixme*/
- { adns_r_hinfo, "HINFO", 0, DEEP_MEMB(strpair), pa_hinfo },
- { adns_r_mx_raw, "MX", "raw", DEEP_MEMB(intstr), pa_mx_raw },
- { adns_r_txt, "TXT", 0, DEEP_MEMB(manystr), pa_txt },
- { adns_r_rp_raw, "RP", "raw", DEEP_MEMB(strpair), pa_rp },
+ { adns_r_mx, "MX", "+addr", DEEP_MEMB(inthostaddr), pa_mx, di_mx },
- { adns_r_ns, "NS", "+addr", DEEP_MEMB(dmaddr), pa_dmaddr },
- { adns_r_ptr, "PTR", "checked", DEEP_MEMB(str), pa_ptr },
- { adns_r_mx, "MX", "+addr", DEEP_MEMB(intdmaddr), pa_mx },
-
- { adns_r_soa, "SOA", "822", DEEP_MEMB(soa), pa_soa },
- { adns_r_rp, "RP", "822", DEEP_MEMB(strpair), pa_rp },
+#if 0 /*fixme*/
+ { adns_r_soa, "SOA","822", DEEP_MEMB(soa), pa_soa, 0 },
+ { adns_r_rp, "RP", "822", DEEP_MEMB(strpair), pa_rp, 0 },
#endif
};
~ianmdlvl / adns.git / blobdiff