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fix "uninitialized check" reported from valgrind ...

#include "global.h"


int
srv_Socket(cfg_root_t * __restrict cfg)
{
	int s = -1, n = 1;
	ait_val_t v;
	u_short port;
	io_sockaddr_t sa = {{ 0 }};

	ioTRACE(2);

	assert(cfg);

	cfg_loadAttribute(cfg, "mqttd", "port", &v, MQTT_PORT);
	port = strtol(AIT_GET_STR(&v), NULL, 0);
	AIT_FREE_VAL(&v);
	cfg_loadAttribute(cfg, "mqttd", "listen", &v, MQTT_HOST);
	if (!io_gethostbyname(AIT_GET_STR(&v), port, &sa)) {
		ioLIBERR(io);
		AIT_FREE_VAL(&v);
		return -1;
	} else
		AIT_FREE_VAL(&v);

	s = socket(sa.ss.ss_family, SOCK_STREAM, 0);
	if (s == -1) {
		ioSYSERR(0);
		return -1;
	}
	if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) {
		ioSYSERR(0);
		close(s);
		return -1;
	}
	if (bind(s, &sa.sa, sa.sa.sa_len) == -1) {
		ioSYSERR(0);
		close(s);
		return -1;
	}

	return s;
}

int
srv_Close(int s)
{
	ioTRACE(2);

	if (s > STDERR_FILENO)
		shutdown(s, SHUT_RDWR);

	return close(s);
}