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libraries/liblutil/signal.c

 

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/* $OpenLDAP: pkg/ldap/libraries/liblutil/signal.c,v 1.10.2.3 2008/02/11 23:26:42 kurt Exp $ */

 

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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.

 

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 *

 

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 * Copyright 1998-2008 The OpenLDAP Foundation.

 

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 * All rights reserved.

 

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 *

 

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 * Redistribution and use in source and binary forms, with or without

 

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 * modification, are permitted only as authorized by the OpenLDAP

 

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 * Public License.

 

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 *

 

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 * A copy of this license is available in the file LICENSE in the

 

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 * top-level directory of the distribution or, alternatively, at

 

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 * <http://www.OpenLDAP.org/license.html>.

 

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 */

 

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#include "portable.h"

 

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#ifdef HAVE_SIGACTION

 

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#include <ac/string.h>

 

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#include <ac/signal.h>

 

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lutil_sig_t

 

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lutil_sigaction(int sig, lutil_sig_t func)

 

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{

 

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        struct sigaction action, oaction;

 

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        memset( &action, '\0', sizeof(action) );

 

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        action.sa_handler = func;

 

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        sigemptyset( &action.sa_mask );

 

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#ifdef SA_RESTART

 

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        action.sa_flags |= SA_RESTART;

 

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#endif

 

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        if( sigaction( sig, &action, &oaction ) != 0 ) {

 

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                return NULL;

 

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        }

 

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        return oaction.sa_handler;

 

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}

 

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#endif

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