8597553f96
- 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)
37 lines
1.4 KiB
Diff
37 lines
1.4 KiB
Diff
commit 8f46c6052408a23a77ecf46aa378120c1a4afe37
|
|
Author: Florian Weimer <fweimer@redhat.com>
|
|
Date: Fri Sep 1 08:57:28 2017 +0200
|
|
|
|
getaddrinfo: Properly set errno for NSS function lookup failure
|
|
|
|
(cherry picked from commit ad816a5e00ce891a2cea8187638fa0e00f83aaf6)
|
|
|
|
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
|
|
index 076e1fa62bd88548..eaf8bafcf4ede5fe 100644
|
|
--- a/sysdeps/posix/getaddrinfo.c
|
|
+++ b/sysdeps/posix/getaddrinfo.c
|
|
@@ -923,13 +923,17 @@ gaih_inet (const char *name, const struct gaih_service *service,
|
|
}
|
|
else
|
|
{
|
|
+ /* Could not locate any of the lookup functions.
|
|
+ The NSS lookup code does not consistently set
|
|
+ errno, so we need to supply our own error
|
|
+ code here. The root cause could either be a
|
|
+ resource allocation failure, or a missing
|
|
+ service function in the DSO (so it should not
|
|
+ be listed in /etc/nsswitch.conf). Assume the
|
|
+ former, and return EBUSY. */
|
|
status = NSS_STATUS_UNAVAIL;
|
|
- /* Could not load any of the lookup functions. Indicate
|
|
- an internal error if the failure was due to a system
|
|
- error other than the file not being found. We use the
|
|
- errno from the last failed callback. */
|
|
- if (errno != 0 && errno != ENOENT)
|
|
- __set_h_errno (NETDB_INTERNAL);
|
|
+ __set_h_errno (NETDB_INTERNAL);
|
|
+ __set_errno (EBUSY);
|
|
}
|
|
}
|
|
|