/[smeserver]/rpms/djbdns/sme10/tinydns-alias-chain-truncation.patch
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Contents of /rpms/djbdns/sme10/tinydns-alias-chain-truncation.patch

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Revision 1.1 - (show annotations) (download)
Thu Feb 4 12:33:24 2016 UTC (8 years, 8 months ago) by vip-ire
Branch: MAIN
CVS Tags: djbdns-1_05-10_el7_sme, djbdns-1_05-9_el7_sme, djbdns-1_05-8_el7_sme, djbdns-1_05-11_el7_sme, HEAD
sme10 branch

1 --- djbdns-1.05-original/tdlookup.c Sun Feb 11 21:11:45 2001
2 +++ djbdns-1.05/tdlookup.c Thu Apr 3 11:56:47 2003
3 @@ -103,12 +103,13 @@
4 return response_addname(d1);
5 }
6
7 -static int doit(char *q,char qtype[2])
8 +static int doit1(char **pqname,char qtype[2])
9 {
10 unsigned int bpos;
11 unsigned int anpos;
12 unsigned int aupos;
13 unsigned int arpos;
14 + char *q;
15 char *control;
16 char *wild;
17 int flaggavesoa;
18 @@ -122,6 +123,12 @@
19 int addrnum;
20 uint32 addrttl;
21 int i;
22 + int loop = 0 ;
23 +
24 +RESTART:
25 + if (loop++ >= 100) return 0 ;
26 +
27 + q = *pqname ;
28
29 anpos = response_len;
30
31 @@ -136,7 +143,14 @@
32 if (byte_equal(type,2,DNS_T_NS)) flagns = 1;
33 }
34 if (flagns) break;
35 - if (!*control) return 0; /* q is not within our bailiwick */
36 + if (!*control) { /* q is not within our bailiwick */
37 + if (loop <= 1)
38 + return 0 ;
39 + else {
40 + response[2] &= ~4;
41 + goto DONE; /* The administrator has issued contradictory instructions */
42 + }
43 + }
44 control += *control;
45 control += 1;
46 }
47 @@ -172,8 +186,16 @@
48 continue;
49 }
50 if (!response_rstart(q,type,ttl)) return 0;
51 - if (byte_equal(type,2,DNS_T_NS) || byte_equal(type,2,DNS_T_CNAME) || byte_equal(type,2,DNS_T_PTR)) {
52 + if (byte_equal(type,2,DNS_T_NS) || byte_equal(type,2,DNS_T_PTR)) {
53 + if (!doname()) return 0;
54 + }
55 + else if (byte_equal(type,2,DNS_T_CNAME)) {
56 if (!doname()) return 0;
57 + if (byte_diff(type,2,qtype)) {
58 + response_rfinish(RESPONSE_ANSWER);
59 + if (!dns_domain_copy(pqname,d1)) return 0 ;
60 + goto RESTART ;
61 + }
62 }
63 else if (byte_equal(type,2,DNS_T_MX)) {
64 if (!dobytes(2)) return 0;
65 @@ -275,9 +297,21 @@
66 }
67 }
68
69 +DONE:
70 return 1;
71 }
72
73 +static int doit(char *qname,char qtype[2])
74 +{
75 + int r ;
76 + char * q = 0 ;
77 +
78 + if (!dns_domain_copy(&q, qname)) return 0 ;
79 + r = doit1(&q, qtype) ;
80 + dns_domain_free(&q) ;
81 + return r ;
82 +}
83 +
84 int respond(char *q,char qtype[2],char ip[4])
85 {
86 int fd;

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