fix API support for big endian machines

Previously the allowed IP addresses were stored in little
endian representation and caused mismatch when run on big
endian machines.

Allowed IPs and netmasks are now kept in network byte
order and converted to little endian for matching
connecting client IP with allowed ones.

api.c

@@ -2984,7 +2984,7 @@ static void setup_ipaccess()
 				ipaccess[ips].mask = 0;
 				while (mask-- >= 0) {
 					octet = 1 << (mask % 8);
-					ipaccess[ips].mask |= (octet << (8 * (mask >> 3)));
+					ipaccess[ips].mask |= (octet << (24 - (8 * (mask >> 3))));
 				}
 			}
 
@@ -2998,7 +2998,7 @@ static void setup_ipaccess()
 				if (octet < 0 || octet > 0xff)
 					goto popipo; // skip invalid
 
-				ipaccess[ips].ip |= (octet << (i * 8));
+				ipaccess[ips].ip |= (octet << (24 - (i * 8)));
 
 				ptr = dot;
 			}
@@ -3165,8 +3165,9 @@ void api(int api_thr_id)
 		addrok = false;
 		group = NOPRIVGROUP;
 		if (opt_api_allow) {
+			int client_ip = htonl(cli.sin_addr.s_addr);
 			for (i = 0; i < ips; i++) {
-				if ((cli.sin_addr.s_addr & ipaccess[i].mask) == ipaccess[i].ip) {
+				if ((client_ip & ipaccess[i].mask) == ipaccess[i].ip) {
 					addrok = true;
 					group = ipaccess[i].group;
 					break;