glibc/glibc-rh168253-getaddrinfo-merge-ipv6-ipv4-addresses.patch
Florian Weimer 8597553f96 Rebase DNS stub resolver to the glibc 2.26 version
- Support an arbitrary number of search domains (#168253)
- Detect and apply /etc/resolv.conf changes in libresolv (#1374239)
- CVE-2015-5180: DNS stub resolver crash with crafted record type (#1251403)
2017-10-11 14:41:27 +02:00

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commit 5cf88a83f27b0cd2d5a83511930e40d716c939eb
Author: Dmitry Bilunov <kmeaw@kmeaw.com>
Date: Sat Jun 24 16:49:34 2017 +0200
getaddrinfo: Merge IPv6 addresses and IPv4 addresses [BZ #21295]
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 4ec17961adb194ff..91e0a76c5cfa027f 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -190,16 +190,16 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
/* Convert struct hostent to a list of struct gaih_addrtuple objects.
h_name is not copied, and the struct hostent object must not be
- deallocated prematurely. *RESULT must be NULL or a pointer to an
- object allocated using malloc, which is freed. */
+ deallocated prematurely. *RESULT must be NULL or a pointer to a
+ linked-list. The new addresses are appended at the end. */
static bool
convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
int family,
struct hostent *h,
struct gaih_addrtuple **result)
{
- free (*result);
- *result = NULL;
+ while (*result)
+ result = &(*result)->next;
/* Count the number of addresses in h->h_addr_list. */
size_t count = 0;