X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fngircd%2Fclient.c;h=f73a2d1ef0b46242bbeed67a8f0a64608b46ab34;hb=575485eb82698a926d38634be2b3e4dce4a5dfd6;hp=c565830a6b82957c8cc0287046c2175b7459b60c;hpb=9b3e143a26f1079d185c41611cd2475f8fbdae39;p=ngircd-alex.git

diff --git a/src/ngircd/client.c b/src/ngircd/client.c
index c565830a..f73a2d1e 100644
--- a/src/ngircd/client.c
+++ b/src/ngircd/client.c
@@ -35,7 +35,6 @@
 #include <imp.h>
 #include "ngircd.h"
 #include "channel.h"
-#include "resolve.h"
 #include "conf.h"
 #include "hash.h"
 #include "irc-write.h"
@@ -201,8 +200,10 @@ Init_New_Client(CONN_ID Idx, CLIENT *Introducer, CLIENT *TopServer,
 	client->type = Type;
 	if (ID)
 		Client_SetID(client, ID);
-	if (User)
+	if (User) {
 		Client_SetUser(client, User, Idented);
+		Client_SetOrigUser(client, User);
+	}
 	if (Hostname)
 		Client_SetHostname(client, Hostname);
 	if (Info)
@@ -353,6 +354,25 @@ Client_SetUser( CLIENT *Client, const char *User, bool Idented )
 } /* Client_SetUser */
 
 
+/**
+ * Set "original" user name of a client.
+ * This function saves the "original" user name, the user name specified by
+ * the peer using the USER command, into the CLIENT structure. This user
+ * name may be used for authentication, for example.
+ * @param Client The client.
+ * @param User User name to set.
+ */
+GLOBAL void
+Client_SetOrigUser(CLIENT UNUSED *Client, const char UNUSED *User) {
+	assert(Client != NULL);
+	assert(User != NULL);
+
+#if defined(PAM) && defined(IDENTAUTH)
+	strlcpy(Client->orig_user, User, sizeof(Client->orig_user));
+#endif
+} /* Client_SetOrigUser */
+
+
 GLOBAL void
 Client_SetInfo( CLIENT *Client, const char *Info )
 {
@@ -602,14 +622,61 @@ Client_User( CLIENT *Client )
 } /* Client_User */
 
 
+#ifdef PAM
+
+/**
+ * Get the "original" user name as supplied by the USER command.
+ * The user name as given by the client is used for authentication instead
+ * of the one detected using IDENT requests.
+ * @param Client The client.
+ * @return Original user name.
+ */
+GLOBAL char *
+Client_OrigUser(CLIENT *Client) {
+#ifndef IDENTAUTH
+	char *user = Client->user;
+
+	if (user[0] == '~')
+		user++;
+	return user;
+#else
+	return Client->orig_user;
+#endif
+} /* Client_OrigUser */
+
+#endif
+
+
+/**
+ * Return the hostname of a client.
+ * @param Client Pointer to client structure
+ * @return Pointer to client hostname
+ */
 GLOBAL char *
-Client_Hostname( CLIENT *Client )
+Client_Hostname(CLIENT *Client)
 {
-	assert( Client != NULL );
+	assert (Client != NULL);
 	return Client->host;
 } /* Client_Hostname */
 
 
+/**
+ * Get potentially cloaked hostname of a client.
+ * If the client has not enabled cloaking, the real hostname is used.
+ * @param Client Pointer to client structure
+ * @return Pointer to client hostname
+ */
+GLOBAL char *
+Client_HostnameCloaked(CLIENT *Client)
+{
+	assert(Client != NULL);
+	if (Client_HasMode(Client, 'x'))
+		return Client_ID(Client->introducer);
+	else
+		return Client_Hostname(Client);
+} /* Client_HostnameCloaked */
+
+
 GLOBAL char *
 Client_Password( CLIENT *Client )
 {
@@ -682,23 +749,56 @@ Client_NextHop( CLIENT *Client )
 
 
 /**
- * return Client-ID ("client!user@host"), this ID is needed for e.g.
- * prefixes.  Returnes pointer to static buffer.
+ * Return ID of a client: "client!user@host"
+ * This client ID is used for IRC prefixes, for example.
+ * Please note that this function uses a global static buffer, so you can't
+ * nest invocations without overwriting erlier results!
+ * @param Client Pointer to client structure
+ * @return Pointer to global buffer containing the client ID
  */
 GLOBAL char *
 Client_Mask( CLIENT *Client )
 {
-	static char GetID_Buffer[GETID_LEN];
+	static char Mask_Buffer[GETID_LEN];
 
-	assert( Client != NULL );
+	assert (Client != NULL);
 
-	if( Client->type == CLIENT_SERVER ) return Client->id;
+	/* Servers: return name only, there is no "mask" */
+	if (Client->type == CLIENT_SERVER)
+		return Client->id;
 
-	snprintf(GetID_Buffer, GETID_LEN, "%s!%s@%s", Client->id, Client->user, Client->host);
-	return GetID_Buffer;
+	snprintf(Mask_Buffer, GETID_LEN, "%s!%s@%s",
+		 Client->id, Client->user, Client->host);
+	return Mask_Buffer;
 } /* Client_Mask */
 
 
+/**
+ * Return ID of a client with cloaked hostname: "client!user@server-name"
+ * This client ID is used for IRC prefixes, for example.
+ * Please note that this function uses a global static buffer, so you can't
+ * nest invocations without overwriting erlier results!
+ * If the client has not enabled cloaking, the real hostname is used.
+ * @param Client Pointer to client structure
+ * @return Pointer to global buffer containing the client ID
+ */
+GLOBAL char *
+Client_MaskCloaked(CLIENT *Client)
+{
+	static char Mask_Buffer[GETID_LEN];
+
+	assert (Client != NULL);
+
+	/* Is the client using cloaking at all? */
+	if (!Client_HasMode(Client, 'x'))
+	    return Client_Mask(Client);
+
+	snprintf(Mask_Buffer, GETID_LEN, "%s!%s@%s",
+		 Client->id, Client->user, Client_ID(Client->introducer));
+	return Mask_Buffer;
+} /* Client_MaskCloaked */
+
+
 GLOBAL CLIENT *
 Client_Introducer( CLIENT *Client )
 {
@@ -1093,7 +1193,7 @@ Client_RegisterWhowas( CLIENT *Client )
 		 sizeof( My_Whowas[slot].id ));
 	strlcpy( My_Whowas[slot].user, Client_User( Client ),
 		 sizeof( My_Whowas[slot].user ));
-	strlcpy( My_Whowas[slot].host, Client_Hostname( Client ),
+	strlcpy( My_Whowas[slot].host, Client_HostnameCloaked( Client ),
 		 sizeof( My_Whowas[slot].host ));
 	strlcpy( My_Whowas[slot].info, Client_Info( Client ),
 		 sizeof( My_Whowas[slot].info ));
@@ -1104,7 +1204,7 @@ Client_RegisterWhowas( CLIENT *Client )
 } /* Client_RegisterWhowas */
 
 
-GLOBAL char *
+GLOBAL const char *
 Client_TypeText(CLIENT *Client)
 {
 	assert(Client != NULL);
@@ -1136,6 +1236,9 @@ Destroy_UserOrService(CLIENT *Client, const char *Txt, const char *FwdMsg, bool
 		    "%s \"%s\" unregistered (connection %d): %s",
 		    Client_TypeText(Client), Client_Mask(Client),
 		    Client->conn_id, Txt);
+		Log_ServerNotice('c', "Client exiting: %s (%s@%s) [%s]",
+			         Client_ID(Client), Client_User(Client),
+				 Client_Hostname(Client), Txt);
 
 		if (SendQuit) {
 			/* Inforam all the other servers */