passt: Initialise socket after getting addresses and routes

...otherwise, both IPv4 and IPv6 are considered disabled, and nothing
works anymore.

While at it, don't fork to background on debug builds, and log to
stderr too in that case.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 9 insertions, 5 deletions

diff --git a/passt.c b/passt.c
index 6b160c0..51b76c9 100644
--- a/passt.c
+++ b/passt.c
@@ -540,21 +540,25 @@ int main(int argc, char **argv)
 		exit(EXIT_FAILURE);
 	}
 
-	if (icmp_sock_init(&c) || tcp_sock_init(&c) || udp_sock_init(&c))
-		exit(EXIT_FAILURE);
-
-	fd_unix = sock_unix();
-
+#if DEBUG
+	openlog("passt", LOG_PERROR, LOG_DAEMON);
+#else
 	openlog("passt", 0, LOG_DAEMON);
 	if (daemon(0, 0)) {
 		fprintf(stderr, "Failed to fork into background\n");
 		exit(EXIT_FAILURE);
 	}
+#endif
 
 	get_routes(&c);
 	get_addrs(&c);
 	get_dns(&c);
 
+	fd_unix = sock_unix();
+
+	if (icmp_sock_init(&c) || tcp_sock_init(&c) || udp_sock_init(&c))
+		exit(EXIT_FAILURE);
+
 	if (c.v4) {
 		info("ARP:");
 		info("    address: %02x:%02x:%02x:%02x:%02x:%02x from %s",