79a2bb25a8
added many years ago for BIND 4. Using CNAME avoids excessive data in
DNS query responses and temporary failures.
This was already applied in spamcontrol.
See also:
http://homepage.ntlworld.com./jonathan.deboynepollard/Softwares/qmail/
https://www.google.com/#q=CNAME_lookup_failed_temporarily
Submitted by: Matt Simerson <matt@tnpi.net>
12 lines
372 B
Plaintext
12 lines
372 B
Plaintext
--- dns.c Mon Jun 15 10:53:16 1998
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+++ dns.c Wed Mar 5 11:31:13 2003
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@@ -196,7 +196,7 @@
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if (!sa->len) return loop;
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if (sa->s[sa->len - 1] == ']') return loop;
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if (sa->s[sa->len - 1] == '.') { --sa->len; continue; }
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- switch(resolve(sa,T_ANY))
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+ switch(resolve(sa,T_CNAME))
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{
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case DNS_MEM: return DNS_MEM;
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case DNS_SOFT: return DNS_SOFT;
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