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* Tue Jul 11 2017 Jean-Philipe Pialasse <tests@pialasse.com> 1.05-9.sme -- backport SME10 fixes [SME: 10381] --import patches from openwrt and rename already applied patches --fix security issues [SME: 10374] - 020-dnsroots-update.patch: update list of root DNS servers - 070-dnscache-dpos-tcp-servfail.patch: SERVFAIL rename previous patch dns_transmit-bug.patch - 210-dnscache-strict-forwardonly.patch: rename previous patch dnscache-strict-forwardonly.patch - 270-dnscache-sigpipe-fix.patch: SIGPIPE - 300-bugfix-dnscache-dempsky-poison.patch: CVE-2009-0858 - 310-bugfix-dnscache-merge-outgoing-requests.patch: CVE-2008-4392 - 320-bugfix-dnscache-cache-soa-records.patch: CVE-2008-4392 - 450-dnscache-ghost-domain-CVE-2012-1191.patch: CVE-2012-1191 http://marc.info/?l=djbdns&m=134190748729079&w=2 --bug fixes [SME: 10374] - 060-dnscache-big-udp-packets.patch: accept and handle longer than 512 bytes UDP packets - 230-tinydns-data-semantic-error.patch: handle semantic error to avoid publishing false dns records - 240-tinydns-alias-chain-truncation.patch: rename previous patch tinydns-alias-chain-truncation.patch --fix issue with short ttl cname like akamaid [SME: 8362] - 200-dnscache-cname-handling.patch: rename previous patch dnscache-cname-handling.patch - 330-fix-dnscache-cname-handling.patch: fix dnscache cname for short ttl - 500-cutom-dnscache-maxloop.patch: set max loop to 200 --needed for previous patches to apply cleanly - 030-srv-records-and-axfrget.patch: add SRV record type and axfr-get decompose SRC and PTR records (for 230-*.patch) - 080-dnscache-cache-negatives.patch: rfc2308 ? (for 200-*.patch) - 090-tinydns-one-second.patch: improve tinydns with 8 or more concurent connections (for 240-*.patch) - 120-compiler-temporary-filename.patch: change tmp filename to avoid conflicts (for 230-*.patch) --not backported from SME10 branch - 050-tinydns-mmap-leak.patch: report cdb leak
| 1 | unnilennium | 1.1 | --- a/tdlookup.c |
| 2 | +++ b/tdlookup.c | ||
| 3 | @@ -280,15 +280,24 @@ static int doit(char *q,char qtype[2]) | ||
| 4 | |||
| 5 | int respond(char *q,char qtype[2],char ip[4]) | ||
| 6 | { | ||
| 7 | - int fd; | ||
| 8 | + static struct tai cdb_valid = { 0 }; | ||
| 9 | + static int fd = -1; | ||
| 10 | + struct tai one_second; | ||
| 11 | int r; | ||
| 12 | char key[6]; | ||
| 13 | |||
| 14 | tai_now(&now); | ||
| 15 | - fd = open_read("data.cdb"); | ||
| 16 | - if (fd == -1) return 0; | ||
| 17 | - cdb_init(&c,fd); | ||
| 18 | - | ||
| 19 | + if (tai_less(&cdb_valid, &now)) { | ||
| 20 | + if (fd != -1) { | ||
| 21 | + cdb_free(&c); | ||
| 22 | + close(fd); | ||
| 23 | + } | ||
| 24 | + fd = open_read("data.cdb"); | ||
| 25 | + if (fd == -1) return 0; | ||
| 26 | + cdb_init(&c,fd); | ||
| 27 | + tai_uint(&one_second, 1); | ||
| 28 | + tai_add(&cdb_valid, &now, &one_second); | ||
| 29 | + } | ||
| 30 | byte_zero(clientloc,2); | ||
| 31 | key[0] = 0; | ||
| 32 | key[1] = '%'; | ||
| 33 | @@ -312,7 +321,5 @@ int respond(char *q,char qtype[2],char i | ||
| 34 | |||
| 35 | r = doit(q,qtype); | ||
| 36 | |||
| 37 | - cdb_free(&c); | ||
| 38 | - close(fd); | ||
| 39 | return r; | ||
| 40 | } |
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