From: Natanael Copa <ncopa@alpinelinux.org>
To: musl@lists.openwall.com
Cc: Natanael Copa <ncopa@alpinelinux.org>
Subject: [PATCH 1/2] check result from res_mkquery
Date: Wed, 25 May 2016 11:22:13 +0200 [thread overview]
Message-ID: <1464168134-17039-1-git-send-email-ncopa@alpinelinux.org> (raw)
we don't want to try send a query that may be malformatted.
---
src/network/lookup_name.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/network/lookup_name.c b/src/network/lookup_name.c
index 86f90ac..d3d97b4 100644
--- a/src/network/lookup_name.c
+++ b/src/network/lookup_name.c
@@ -145,11 +145,15 @@ static int name_from_dns(struct address buf[static MAXADDRS], char canon[static
if (family != AF_INET6) {
qlens[nq] = __res_mkquery(0, name, 1, RR_A, 0, 0, 0,
qbuf[nq], sizeof *qbuf);
+ if (qlens[nq] == -1)
+ return EAI_NONAME;
nq++;
}
if (family != AF_INET) {
qlens[nq] = __res_mkquery(0, name, 1, RR_AAAA, 0, 0, 0,
qbuf[nq], sizeof *qbuf);
+ if (qlens[nq] == -1)
+ return EAI_NONAME;
nq++;
}
--
2.8.2
next reply other threads:[~2016-05-25 9:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-25 9:22 Natanael Copa [this message]
2016-05-25 9:22 ` [PATCH 2/2] refactor name_from_dns Natanael Copa
2016-05-27 4:40 ` Rich Felker
2016-06-15 17:53 ` Natanael Copa
2016-06-15 18:27 ` [PATCH v2] " Natanael Copa
2016-06-29 16:04 ` Rich Felker
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