src/nss-resolve/nss-resolve.c: In function ‘_nss_resolve_gethostbyname_r’:
src/nss-resolve/nss-resolve.c:680:13: warning: RES_USE_INET6 is deprecated
NSS_GETHOSTBYNAME_FALLBACKS(resolve);
^~~~~~~~~~~~~~~~~~~~~~~~~
In glibc bz #19582, RES_USE_INET6 was deprecated. This might make sense for
clients, but they didn't take into account nss module implementations which
*must* continue to support the option. glibc internally defines
DEPRECATED_RES_USE_INET6 which can be used without emitting a warning, but
it's not exported publicly. Let's do the same, and just copy the definition
to our header.
Let's make sure our poll() calls don't get interrupted where they shouldn't (SIGALRM, ...), but allow them to be
interrupted where they should (SIGINT, ...).
Fixes#1965
The header file defines some helpers for GLIBC NSS and doesn't include
anything else but glibc headers, hence there's little reason to keep it
in shared/.
See: #2008
Zbigniew Jędrzejewski-Szmek
Lennart Poettering
Daniel Mack