5 files changed, 35 insertions, 29 deletions

diff --git a/src/login/account.h b/src/login/account.h
index 74a9e9626..234e7c0c1 100644
--- a/src/login/account.h
+++ b/src/login/account.h
@@ -2,8 +2,8 @@
 // See the LICENSE file
 // Portions Copyright (c) Athena Dev Teams
 
-#ifndef __ACCOUNT_H_INCLUDED__
-#define __ACCOUNT_H_INCLUDED__
+#ifndef _LOGIN_ACCOUNT_H_
+#define _LOGIN_ACCOUNT_H_
 
 #include "../common/cbasetypes.h"
 #include "../common/mmo.h" // ACCOUNT_REG2_NUM
@@ -139,4 +139,4 @@ Sql *account_db_sql_up(AccountDB* self);
 void mmo_send_accreg2(AccountDB* self, int fd, int account_id, int char_id);
 void mmo_save_accreg2(AccountDB* self, int fd, int account_id, int char_id);
 
-#endif // __ACCOUNT_H_INCLUDED__
+#endif /* _LOGIN_ACCOUNT_H_ */
diff --git a/src/login/ipban.h b/src/login/ipban.h
index b2a1a7d9e..e6851d8dd 100644
--- a/src/login/ipban.h
+++ b/src/login/ipban.h
@@ -1,8 +1,8 @@
 // Copyright (c) Athena Dev Teams - Licensed under GNU GPL
 // For more information, see LICENCE in the main folder
 
-#ifndef __IPBAN_H_INCLUDED__
-#define __IPBAN_H_INCLUDED__
+#ifndef _LOGIN_IPBAN_H_
+#define _LOGIN_IPBAN_H_
 
 #include "../common/cbasetypes.h"
 
@@ -22,4 +22,4 @@ void ipban_log(uint32 ip);
 bool ipban_config_read(const char* key, const char* value);
 
 
-#endif // __IPBAN_H_INCLUDED__
+#endif /* _LOGIN_IPBAN_H_ */
diff --git a/src/login/login.c b/src/login/login.c
index d427641f5..252031bb8 100644
--- a/src/login/login.c
+++ b/src/login/login.c
@@ -1017,27 +1017,29 @@ int mmo_auth(struct login_session_data* sd, bool isServer) {
 	}
 	
 	if( login_config.client_hash_check && !isServer ) {
-		struct client_hash_node *node = login_config.client_hash_nodes;
+		struct client_hash_node *node = NULL;
 		bool match = false;
 
-		if( !sd->has_client_hash ) {
-			ShowNotice("Client doesn't sent client hash (account: %s, pass: %s, ip: %s)\n", sd->userid, sd->passwd, acc.state, ip);
-			return 5;
-		}
-
-		while( node ) {
-			if( node->group_id <= acc.group_id && memcmp(node->hash, sd->client_hash, 16) == 0 ) {
+		for( node = login_config.client_hash_nodes; node; node = node->next ) {
+			if( acc.group_id < node->group_id )
+				continue;
+			if( *node->hash == '\0' // Allowed to login without hash
+			 || (sd->has_client_hash && memcmp(node->hash, sd->client_hash, 16) == 0 ) // Correct hash
+			) {
 				match = true;
 				break;
 			}
-
-			node = node->next;
 		}
 
 		if( !match ) {
 			char smd5[33];
 			int i;
 
+			if( !sd->has_client_hash ) {
+				ShowNotice("Client didn't send client hash (account: %s, pass: %s, ip: %s)\n", sd->userid, sd->passwd, acc.state, ip);
+				return 5;
+			}
+
 			for( i = 0; i < 16; i++ )
 				sprintf(&smd5[i * 2], "%02x", sd->client_hash[i]);
 
@@ -1647,15 +1649,19 @@ int login_config_read(const char* cfgName)
 				int i;
 				CREATE(nnode, struct client_hash_node, 1);
 
-				for (i = 0; i < 32; i += 2) {
-					char buf[3];
-					unsigned int byte;
+				if (strcmpi(md5, "disabled") == 0) {
+					nnode->hash[0] = '\0';
+				} else {
+					for (i = 0; i < 32; i += 2) {
+						char buf[3];
+						unsigned int byte;
 
-					memcpy(buf, &md5[i], 2);
-					buf[2] = 0;
+						memcpy(buf, &md5[i], 2);
+						buf[2] = 0;
 
-					sscanf(buf, "%x", &byte);
-					nnode->hash[i / 2] = (uint8)(byte & 0xFF);
+						sscanf(buf, "%x", &byte);
+						nnode->hash[i / 2] = (uint8)(byte & 0xFF);
+					}
 				}
 
 				nnode->group_id = group;
diff --git a/src/login/login.h b/src/login/login.h
index d6a021125..14c361a15 100644
--- a/src/login/login.h
+++ b/src/login/login.h
@@ -2,8 +2,8 @@
 // See the LICENSE file
 // Portions Copyright (c) Athena Dev Teams
 
-#ifndef _LOGIN_H_
-#define _LOGIN_H_
+#ifndef _LOGIN_LOGIN_H_
+#define _LOGIN_LOGIN_H_
 
 #include "../common/mmo.h" // NAME_LENGTH,SEX_*
 #include "../common/core.h" // CORE_ST_LAST
@@ -100,4 +100,4 @@ extern struct mmo_char_server server[MAX_SERVERS];
 extern struct Login_Config login_config;
 
 
-#endif /* _LOGIN_H_ */
+#endif /* _LOGIN_LOGIN_H_ */
diff --git a/src/login/loginlog.h b/src/login/loginlog.h
index a1ffaae85..730fb6e62 100644
--- a/src/login/loginlog.h
+++ b/src/login/loginlog.h
@@ -1,8 +1,8 @@
 // Copyright (c) Athena Dev Teams - Licensed under GNU GPL
 // For more information, see LICENCE in the main folder
 
-#ifndef __LOGINLOG_H_INCLUDED__
-#define __LOGINLOG_H_INCLUDED__
+#ifndef _LOGIN_LOGINLOG_H_
+#define _LOGIN_LOGINLOG_H_
 
 
 unsigned long loginlog_failedattempts(uint32 ip, unsigned int minutes);
@@ -12,4 +12,4 @@ bool loginlog_final(void);
 bool loginlog_config_read(const char* w1, const char* w2);
 
 
-#endif // __LOGINLOG_H_INCLUDED__
+#endif /* _LOGIN_LOGINLOG_H_ */