39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
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From: Ludwig Nussel <ludwig.nussel@suse.de>
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Date: Mon, 26 Nov 2012 09:49:42 +0100
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Subject: avoid assertion if invalid address familily is passed to
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gethostbyaddr_r (bnc#791101)
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---
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src/nss-myhostname/nss-myhostname.c | 11 ++++++-----
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1 file changed, 6 insertions(+), 5 deletions(-)
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diff --git a/src/nss-myhostname/nss-myhostname.c b/src/nss-myhostname/nss-myhostname.c
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index b0fb832..b3aaca8 100644
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--- a/src/nss-myhostname/nss-myhostname.c
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+++ b/src/nss-myhostname/nss-myhostname.c
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@@ -384,6 +384,12 @@ enum nss_status _nss_myhostname_gethostbyaddr2_r(
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struct address *addresses = NULL, *a;
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unsigned n_addresses = 0, n;
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+ if (af != AF_INET && af != AF_INET6) {
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+ *errnop = EAFNOSUPPORT;
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+ *h_errnop = NO_DATA;
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+ return NSS_STATUS_UNAVAIL;
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+ }
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+
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if (len != PROTO_ADDRESS_SIZE(af)) {
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*errnop = EINVAL;
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*h_errnop = NO_RECOVERY;
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@@ -399,11 +405,6 @@ enum nss_status _nss_myhostname_gethostbyaddr2_r(
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if (memcmp(addr, LOCALADDRESS_IPV6, 16) == 0)
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goto found;
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-
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- } else {
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- *errnop = EAFNOSUPPORT;
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- *h_errnop = NO_DATA;
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- return NSS_STATUS_UNAVAIL;
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}
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ifconf_acquire_addresses(&addresses, &n_addresses);
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