diff options
author | Florian Weimer <fweimer@redhat.com> | 2017-09-01 08:57:28 +0200 |
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committer | Florian Weimer <fweimer@redhat.com> | 2017-09-04 11:44:21 +0200 |
commit | 8f46c6052408a23a77ecf46aa378120c1a4afe37 (patch) | |
tree | fb6a5ccc3962467c7d2738c7f09c34e608d2f946 /sysdeps/posix | |
parent | 701f7873da013fb19d9120317322cd78333e63c2 (diff) |
getaddrinfo: Properly set errno for NSS function lookup failure
(cherry picked from commit ad816a5e00ce891a2cea8187638fa0e00f83aaf6)
Diffstat (limited to 'sysdeps/posix')
-rw-r--r-- | sysdeps/posix/getaddrinfo.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c index 076e1fa62b..eaf8bafcf4 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); } } |