Package: djbdns-installer Version: 1.05-11 Severity: wishlist Tags: patch The attached patch adds native SRV record type to tinydns-data and axfr-get (patch credit goes to Michael Handler for the initial patch, and to Laurent G. Bercot for the updated patch for djbdns-1.05).
Native SRV record data type is far more useful than the opaque SRV handling in the stock djbdns source. Kind Regards, Michael Shuler
From: Michael Handler <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: tinydns-data SRV & axfr-get SRV/PTR patches Date: Thu, 14 Sep 2000 20:37:50 -0400 Here's a combined patch that: a) adds a native SRV type to tinydns-data Sfqdn:ip:x:port:weight:priority:ttl:timestamp Standard rules for ip, x, ttl, and timestamp apply. Port, weight, and priority all range from 0-65535. Weight and priority are optional; they default to zero if not provided. Sconsole.zoinks.example.com:1.2.3.4:rack102-con1:2001:69:7:300: b) makes axfr-get decompose SRV and PTR records and write them out in native format, rather than opaque. Again, this is necessary because if the DNAME fields in the records reference the same zone as fqdn, they can have compression pointers that are bogus outside the context of that specific packet, and which can't be correctly loaded into data.cdb by tinydns-data. --michael Laurent G. Bercot <[EMAIL PROTECTED]> updated it for djbdns-1.05: diff -rNU3 djbdns-1.05/axfr-get.c djbdns-1.05-srv/axfr-get.c --- djbdns-1.05/axfr-get.c Sun Feb 11 22:11:45 2001 +++ djbdns-1.05-srv/axfr-get.c Thu Oct 18 14:46:56 2001 @@ -209,6 +209,26 @@ if (!stralloc_cats(&line,".:")) return 0; if (!stralloc_catulong0(&line,dist,0)) return 0; } + else if (byte_equal(data,2,DNS_T_SRV)) { + uint16 dist, weight, port; + if (!stralloc_copys(&line,"S")) return 0; + if (!dns_domain_todot_cat(&line,d1)) return 0; + if (!stralloc_cats(&line,"::")) return 0; + pos = x_copy(buf,len,pos,data,2); + uint16_unpack_big(data,&dist); + pos = x_copy(buf,len,pos,data,2); + uint16_unpack_big(data,&weight); + pos = x_copy(buf,len,pos,data,2); + uint16_unpack_big(data,&port); + x_getname(buf,len,pos,&d1); + if (!dns_domain_todot_cat(&line,d1)) return 0; + if (!stralloc_cats(&line,".:")) return 0; + if (!stralloc_catulong0(&line,dist,0)) return 0; + if (!stralloc_cats(&line,":")) return 0; + if (!stralloc_catulong0(&line,weight,0)) return 0; + if (!stralloc_cats(&line,":")) return 0; + if (!stralloc_catulong0(&line,port,0)) return 0; + } else if (byte_equal(data,2,DNS_T_A) && (dlen == 4)) { char ipstr[IP4_FMT]; if (!stralloc_copys(&line,"+")) return 0; @@ -216,6 +236,14 @@ if (!stralloc_cats(&line,":")) return 0; x_copy(buf,len,pos,data,4); if (!stralloc_catb(&line,ipstr,ip4_fmt(ipstr,data))) return 0; + } + else if (byte_equal(data,2,DNS_T_PTR)) { + if (!stralloc_copys(&line,"^")) return 0; + if (!dns_domain_todot_cat(&line,d1)) return 0; + if (!stralloc_cats(&line,":")) return 0; + x_getname(buf,len,pos,&d1); + if (!dns_domain_todot_cat(&line,d1)) return 0; + if (!stralloc_cats(&line,".")) return 0; } else { unsigned char ch; diff -rNU3 djbdns-1.05/dns.h djbdns-1.05-srv/dns.h --- djbdns-1.05/dns.h Sun Feb 11 22:11:45 2001 +++ djbdns-1.05-srv/dns.h Thu Oct 18 14:46:56 2001 @@ -20,6 +20,7 @@ #define DNS_T_SIG "\0\30" #define DNS_T_KEY "\0\31" #define DNS_T_AAAA "\0\34" +#define DNS_T_SRV "\0\41" #define DNS_T_AXFR "\0\374" #define DNS_T_ANY "\0\377" diff -rNU3 djbdns-1.05/tinydns-data.c djbdns-1.05-srv/tinydns-data.c --- djbdns-1.05/tinydns-data.c Sun Feb 11 22:11:45 2001 +++ djbdns-1.05-srv/tinydns-data.c Thu Oct 18 14:50:53 2001 @@ -196,6 +196,7 @@ char type[2]; char soa[20]; char buf[4]; + char srv[6]; umask(022); @@ -360,6 +361,43 @@ rr_start(DNS_T_MX,ttl,ttd,loc); uint16_pack_big(buf,u); rr_add(buf,2); + rr_addname(d2); + rr_finish(d1); + + if (ip4_scan(f[1].s,ip)) { + rr_start(DNS_T_A,ttl,ttd,loc); + rr_add(ip,4); + rr_finish(d2); + } + break; + + case 'S': + if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem(); + if (!stralloc_0(&f[6])) nomem(); + if (!scan_ulong(f[6].s,&ttl)) ttl = TTL_POSITIVE; + ttdparse(&f[7],ttd); + locparse(&f[8],loc); + + if (!stralloc_0(&f[1])) nomem(); + + if (byte_chr(f[2].s,f[2].len,'.') >= f[2].len) { + if (!stralloc_cats(&f[2],".srv.")) nomem(); + if (!stralloc_catb(&f[2],f[0].s,f[0].len)) nomem(); + } + if (!dns_domain_fromdot(&d2,f[2].s,f[2].len)) nomem(); + + if (!stralloc_0(&f[4])) nomem(); + if (!scan_ulong(f[4].s,&u)) u = 0; + uint16_pack_big(srv,u); + if (!stralloc_0(&f[5])) nomem(); + if (!scan_ulong(f[5].s,&u)) u = 0; + uint16_pack_big(srv + 2,u); + if (!stralloc_0(&f[3])) nomem(); + if (!scan_ulong(f[3].s,&u)) nomem(); + uint16_pack_big(srv + 4,u); + + rr_start(DNS_T_SRV,ttl,ttd,loc); + rr_add(srv,6); rr_addname(d2); rr_finish(d1);