commit 30796698a9fca0037ea48f70ceafac1e783d06fb
from: Alexander Barton <alex@barton.de>
date: Wed Sep 07 12:51:16 2011 UTC

Only close "unrelated" sockets in forked child processes

This fixes the problem that ngIRCd can't do any IDENT lookups because
of the socket has already been closed in the child process.

The bug has been introduced starting with ngIRCd 17 ... :-(
(commit ID 6ebb31ab35e)

commit - f173a974bee5181d8131519ed07b3b5261bf6366
commit + 30796698a9fca0037ea48f70ceafac1e783d06fb
blob - 407da1a3b0837ac2bd99c16054175a4b4070e006
blob + aa754eb482ae5c38f224adee20c9ac129751f19e
--- src/ngircd/conn.c
+++ src/ngircd/conn.c
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2010 Alexander Barton <alex@barton.de>
+ * Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -435,12 +435,13 @@ Conn_Exit( void )
  * they don't hold connections open that the main process wants to close.
  */
 GLOBAL void
-Conn_CloseAllSockets(void)
+Conn_CloseAllSockets(int ExceptOf)
 {
 	CONN_ID idx;
 
 	for(idx = 0; idx < Pool_Size; idx++) {
-		if(My_Connections[idx].sock > NONE)
+		if(My_Connections[idx].sock > NONE &&
+		   My_Connections[idx].sock != ExceptOf)
 			close(My_Connections[idx].sock);
 	}
 }
blob - c813729f9331e1c3897ed32f44505f851f782604
blob + 251da2a07ddff28452d68559a35f039b6e14c676
--- src/ngircd/conn.h
+++ src/ngircd/conn.h
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2010 Alexander Barton <alex@barton.de>
+ * Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -106,7 +106,7 @@ GLOBAL long WCounter;
 GLOBAL void Conn_Init PARAMS((void ));
 GLOBAL void Conn_Exit PARAMS(( void ));
 
-GLOBAL void Conn_CloseAllSockets PARAMS((void));
+GLOBAL void Conn_CloseAllSockets PARAMS((int ExceptOf));
 
 GLOBAL unsigned int Conn_InitListeners PARAMS(( void ));
 GLOBAL void Conn_ExitListeners PARAMS(( void ));
blob - 0577cd9c0a94877532d7d594a2bb780e62c96598
blob + 884a06becee921df8f4ab42248e619853492cf85
--- src/ngircd/irc-login.c
+++ src/ngircd/irc-login.c
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2010 Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -959,6 +959,7 @@ Hello_User(CLIENT * Client)
 	} else {
 		/* Sub process */
 		Log_Init_Subprocess("Auth");
+		Conn_CloseAllSockets(NONE);
 		result = PAM_Authenticate(Client);
 		if (write(pipefd[1], &result, sizeof(result)) != sizeof(result))
 			Log_Subprocess(LOG_ERR,
blob - fd2df1d947c51a773a9447a04e159e4a15afd8a4
blob + 7addb47ef30c804e889b6a49d390e2505ae8e1b2
--- src/ngircd/proc.c
+++ src/ngircd/proc.c
@@ -79,7 +79,6 @@ Proc_Fork(PROC_STAT *proc, int *pipefds, void (*cbfunc
 		signal(SIGALRM, Proc_GenericSignalHandler);
 		close(pipefds[0]);
 		alarm(timeout);
-		Conn_CloseAllSockets();
 		return 0;
 	}
 
blob - 9b17af9cb202209b4b5e79c53c50d316a2df3105
blob + c7e600381e81b571ded2cd343887529418e7d59c
--- src/ngircd/resolve.c
+++ src/ngircd/resolve.c
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2009 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -75,7 +75,8 @@ Resolve_Addr(PROC_STAT * s, const ng_ipaddr_t *Addr, i
 	} else if( pid == 0 ) {
 		/* Sub process */
 		Log_Init_Subprocess("Resolver");
-		Do_ResolveAddr( Addr, identsock, pipefd[1]);
+		Conn_CloseAllSockets(identsock);
+		Do_ResolveAddr(Addr, identsock, pipefd[1]);
 		Log_Exit_Subprocess("Resolver");
 		exit(0);
 	}
@@ -104,6 +105,7 @@ Resolve_Name( PROC_STAT *s, const char *Host, void (*c
 	} else if( pid == 0 ) {
 		/* Sub process */
 		Log_Init_Subprocess("Resolver");
+		Conn_CloseAllSockets(NONE);
 		Do_ResolveName(Host, pipefd[1]);
 		Log_Exit_Subprocess("Resolver");
 		exit(0);