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nss: Fix tst-nss-files-hosts-long on single-stack hosts (bug 24816)

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getent implicitly passes AI_ADDRCONFIG to getaddrinfo by default.
Use --no-addrconfig to suppress that, so that both IPv4 and IPv6
lookups succeed even if the address family is not supported by the
host.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit c75d20b5b2)
This commit is contained in:
Florian Weimer 2022-09-13 16:11:40 +02:00
parent 700d3281f9
commit 2681d38caf
2 changed files with 6 additions and 4 deletions
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1
NEWS
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@ -24,6 +24,7 @@ Security related changes:
The following bugs are resolved with this release:
[12154] Do not fail DNS resolution for CNAMEs which are not host names
[24816] Fix tst-nss-files-hosts-long on single-stack hosts
[28846] CMSG_NXTHDR may trigger -Wstrict-overflow warning
[29305] Conserve NSS buffer space during DNS packet parsing
[29415] nscd: Fix netlink cache invalidation if epoll is used

9
nss/tst-nss-files-hosts-long.c
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@ -28,14 +28,15 @@ do_test (void)
{
int ret;
/* Run getent to fetch the IPv4 address for host test4.
This forces /etc/hosts to be parsed. */
ret = system("getent ahostsv4 test4");
/* Run getent to fetch the IPv4 address for host test4. This forces
/etc/hosts to be parsed. Use --no-addrconfig to return addresses
even in an IPv6-only environment. */
ret = system("getent --no-addrconfig ahostsv4 test4");
if (ret != 0)
FAIL_EXIT1("ahostsv4 failed");
/* Likewise for IPv6. */
ret = system("getent ahostsv6 test6");
ret = system("getent --no-addrconfig ahostsv6 test6");
if (ret != 0)
FAIL_EXIT1("ahostsv6 failed");