libdns: Avoid using compound literals (7).

* dirmngr/dns.h (DNS_OPTS_INIT, dns_opts): Remove.
* dirmngr/dns-stuff.c (libdns_res_open): Use zero-ed, and initialized
automatic variable for opts.
* dirmngr/dns.c (send_query, resolve_query, resolve_addrinfo):
Likewise.

--

In fact, DNS_OPTS_INIT was only needed when args are none.  With
partially specified initialization, C99 guarantees zero-ed other
members just like static object.

Signed-off-by: NIIBE Yutaka <[email protected]>
(cherry picked from commit d661acd483236d34720a4959fc816d05f89c2cb7)

1 files changed, 6 insertions, 4 deletions

diff --git a/dirmngr/dns-stuff.c b/dirmngr/dns-stuff.c
index 330eb0136..a5087e573 100644
--- a/dirmngr/dns-stuff.c
+++ b/dirmngr/dns-stuff.c
@@ -691,6 +691,11 @@ libdns_res_open (struct dns_resolver **r_res)
   gpg_error_t err;
   struct dns_resolver *res;
   int derr;
+  struct dns_options opts = { 0 };
+
+  opts.socks_host     = &libdns.socks_host;
+  opts.socks_user     = tor_socks_user;
+  opts.socks_password = tor_socks_password;
 
   *r_res = NULL;
 
@@ -716,10 +721,7 @@ libdns_res_open (struct dns_resolver **r_res)
     set_dns_timeout (0);
 
   res = dns_res_open (libdns.resolv_conf, libdns.hosts, libdns.hints, NULL,
-                      dns_opts (.socks_host     = &libdns.socks_host,
-                                .socks_user     = tor_socks_user,
-                                .socks_password = tor_socks_password ),
-                      &derr);
+                      &opts, &derr);
   if (!res)
     return libdns_error_to_gpg_error (derr);