42 lines
1.0 KiB
Diff
42 lines
1.0 KiB
Diff
--- a/query.c
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+++ b/query.c
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@@ -193,6 +193,7 @@ static int doit(struct query *z,int stat
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int k;
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int p;
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int q;
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+ uint32 cachettl;
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errno = error_io;
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if (state == 1) goto HAVEPACKET;
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@@ -470,6 +471,7 @@ static int doit(struct query *z,int stat
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rcode = header[3] & 15;
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if (rcode && (rcode != 3)) goto DIE; /* impossible; see irrelevant() */
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+ cachettl = 0;
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flagout = 0;
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flagcname = 0;
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flagreferral = 0;
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@@ -512,6 +514,11 @@ static int doit(struct query *z,int stat
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uint16_unpack_big(header + 8,&datalen);
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pos += datalen;
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+
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+ if (flagsoa && (pos <= len)) {
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+ cachettl = ttlget(buf + pos - 4);
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+ if (soattl < cachettl) cachettl = soattl;
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+ }
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}
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posglue = pos;
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@@ -689,8 +696,8 @@ static int doit(struct query *z,int stat
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}
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if (rcode == 3) {
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- log_nxdomain(whichserver,d,soattl);
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- cachegeneric(DNS_T_ANY,d,"",0,soattl);
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+ log_nxdomain(whichserver,d,cachettl);
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+ cachegeneric(DNS_T_ANY,d,"",0,cachettl);
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NXDOMAIN:
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if (z->level) goto LOWERLEVEL;
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