text: /* service.c - service lookup routines */
  /* $OpenLDAP$ */
  /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 
   *
   * Copyright 2008-2021 The OpenLDAP Foundation.
   * Portions Copyright 2008 by Howard Chu, Symas Corp.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted only as authorized by the OpenLDAP
   * Public License.
   *
   * A copy of this license is available in the file LICENSE in the
   * top-level directory of the distribution or, alternatively, at
   * <http://www.OpenLDAP.org/license.html>.
   */
  /* ACKNOWLEDGEMENTS:
   * This code references portions of the nss-ldapd package
   * written by Arthur de Jong. The nss-ldapd code was forked
   * from the nss-ldap library written by Luke Howard.
   */
  
  #include "nssov.h"
  
  /* ( nisSchema.2.3 NAME 'ipService' SUP top STRUCTURAL
   *	 DESC 'Abstraction an Internet Protocol service.
   *				 Maps an IP port and protocol (such as tcp or udp)
   *				 to one or more names; the distinguished value of
   *				 the cn attribute denotes the service's canonical
   *				 name'
   *	 MUST ( cn $ ipServicePort $ ipServiceProtocol )
   *	 MAY ( description ) )
   */
  
  /* the basic search filter for searches */
  static struct berval service_filter = BER_BVC("(objectClass=ipService)");
  
  /* the attributes to request with searches */
  static struct berval service_keys[] = {
  	BER_BVC("cn"),
  	BER_BVC("ipServicePort"),
  	BER_BVC("ipServiceProtocol"),
  	BER_BVNULL
  };
  
  static int mkfilter_service_byname(nssov_mapinfo *mi,struct berval *name,
  								 struct berval *protocol,struct berval *buf)
  {
  	char buf2[1024],buf3[1024];
  	struct berval bv2 = {sizeof(buf2),buf2};
  	struct berval bv3 = {sizeof(buf3),buf3};
  
  	/* escape attributes */
  	if (nssov_escape(name,&bv2))
  		return -1;
  	if (!BER_BVISNULL(protocol)) {
  		if (nssov_escape(protocol,&bv3))
  			return -1;
  		if (bv2.bv_len + mi->mi_filter.bv_len + mi->mi_attrs[0].an_desc->ad_cname.bv_len +
  			bv3.bv_len + mi->mi_attrs[2].an_desc->ad_cname.bv_len + 9 > buf->bv_len )
  			return -1;
  		buf->bv_len = snprintf(buf->bv_val, buf->bv_len, "(&%s(%s=%s)(%s=%s))",
  			mi->mi_filter.bv_val,
  			mi->mi_attrs[0].an_desc->ad_cname.bv_val, bv2.bv_val,
  			mi->mi_attrs[2].an_desc->ad_cname.bv_val, bv3.bv_val );
  	} else {
  		if (bv2.bv_len + mi->mi_filter.bv_len + mi->mi_attrs[0].an_desc->ad_cname.bv_len + 6 >
  			buf->bv_len )
  			return -1;
  		buf->bv_len = snprintf(buf->bv_val, buf->bv_len, "(&%s(%s=%s))",
  			mi->mi_filter.bv_val, mi->mi_attrs[0].an_desc->ad_cname.bv_val,
  			bv2.bv_val );
  	}
  	return 0;
  }
  
  static int mkfilter_service_bynumber(nssov_mapinfo *mi,struct berval *numb,
  								 struct berval *protocol,struct berval *buf)
  {
  	char buf2[1024];
  	struct berval bv2 = {sizeof(buf2),buf2};
  
  	/* escape attribute */
  	if (!BER_BVISNULL(protocol)) {
  		if (nssov_escape(protocol,&bv2))
  			return -1;
  		if (numb->bv_len + mi->mi_filter.bv_len + mi->mi_attrs[1].an_desc->ad_cname.bv_len +
  			bv2.bv_len + mi->mi_attrs[2].an_desc->ad_cname.bv_len + 9 > buf->bv_len )
  			return -1;
  		buf->bv_len = snprintf(buf->bv_val, buf->bv_len, "(&%s(%s=%s)(%s=%s))",
  			mi->mi_filter.bv_val,
  			mi->mi_attrs[1].an_desc->ad_cname.bv_val, numb->bv_val,
  			mi->mi_attrs[2].an_desc->ad_cname.bv_val, bv2.bv_val );
  	} else {
  		if (numb->bv_len + mi->mi_filter.bv_len + mi->mi_attrs[1].an_desc->ad_cname.bv_len + 6 >
  			buf->bv_len )
  			return -1;
  		buf->bv_len = snprintf(buf->bv_val, buf->bv_len, "(&%s(%s=%s))",
  			mi->mi_filter.bv_val, mi->mi_attrs[1].an_desc->ad_cname.bv_val,
  			numb->bv_val );
  	}
  	return 0;
  }
  
  NSSOV_INIT(service)
  
  NSSOV_CBPRIV(service,
  	char nbuf[256];
  	char pbuf[256];
  	struct berval name;
  	struct berval prot;);
  
  static int write_service(nssov_service_cbp *cbp,Entry *entry)
  {
  	int32_t tmpint32;
  	struct berval name,*names,*protos;
  	struct berval tmparr[2];
  	Attribute *a;
  	char *tmp;
  	int port;
  	int i,numname,dupname,numprot;
  
  	/* get the most canonical name */
  	nssov_find_rdnval( &entry->e_nname, cbp->mi->mi_attrs[0].an_desc, &name );
  	/* get the other names for the rpc */
  	a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[0].an_desc );
  	if ( !a || !a->a_vals )
  	{
  		Debug(LDAP_DEBUG_ANY,"service entry %s does not contain %s value\n",
  			entry->e_name.bv_val, cbp->mi->mi_attrs[0].an_desc->ad_cname.bv_val );
  		return 0;
  	}
  	names = a->a_vals;
  	numname = a->a_numvals;
  	/* if the name is not yet found, get the first entry from names */
  	if (BER_BVISNULL(&name)) {
  		name=names[0];
  		dupname = 0;
  	} else {
  		dupname = -1;
  		for (i=0; i<numname; i++) {
  			if ( bvmatch(&name, &a->a_nvals[i])) {
  				dupname = i;
  				break;
  			}
  		}
  	}
  	/* get the service number */
  	a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[1].an_desc );
  	if ( !a || !a->a_vals )
  	{
  		Debug(LDAP_DEBUG_ANY,"service entry %s does not contain %s value\n",
  			entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
  		return 0;
  	} else if ( a->a_numvals > 1 ) {
  		Debug(LDAP_DEBUG_ANY,"service entry %s contains multiple %s values\n",
  			entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
  	}
  	port=(int)strtol(a->a_vals[0].bv_val,&tmp,0);
  	if (*tmp)
  	{
  		Debug(LDAP_DEBUG_ANY,"service entry %s contains non-numeric %s value\n",
  			entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
  		return 0;
  	}
  	/* get protocols */
  	if (BER_BVISNULL(&cbp->prot))
  	{
  		a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[2].an_desc );
  		if ( !a || !a->a_vals )
  		{
  			Debug(LDAP_DEBUG_ANY,"service entry %s does not contain %s value\n",
  				entry->e_name.bv_val, cbp->mi->mi_attrs[2].an_desc->ad_cname.bv_val );
  			return 0;
  		}
  		protos = a->a_vals;
  		numprot = a->a_numvals;
  	}
  	else
  	{
  		protos=tmparr;
  		protos[0]=cbp->prot;
  		BER_BVZERO(&protos[1]);
  		numprot = 1;
  	}
  	/* write the entries */
  	for (i=0;i<numprot;i++)
  	{
  		int j;
  		WRITE_INT32(cbp->fp,NSLCD_RESULT_BEGIN);
  		WRITE_BERVAL(cbp->fp,&name);
  		if ( dupname >= 0 ) {
  			WRITE_INT32(cbp->fp,numname-1);
  		} else {
  			WRITE_INT32(cbp->fp,numname);
  		}
  		for (j=0;j<numname;j++) {
  			if (j == dupname) continue;
  			WRITE_BERVAL(cbp->fp,&names[j]);
  		}
  		WRITE_INT32(cbp->fp,port);
  		WRITE_BERVAL(cbp->fp,&protos[i]);
  	}
  	return 0;
  }
  
  NSSOV_CB(service)
  
  NSSOV_HANDLE(
  	service,byname,
  	char fbuf[1024];
  	struct berval filter = {sizeof(fbuf)};
  	filter.bv_val = fbuf;
  	READ_STRING(fp,cbp.nbuf);
  	cbp.name.bv_len = tmpint32;
  	cbp.name.bv_val = cbp.nbuf;
  	READ_STRING(fp,cbp.pbuf);
  	cbp.prot.bv_len = tmpint32;
  	cbp.prot.bv_val = tmpint32 ? cbp.pbuf : NULL;,
  	Debug(LDAP_DEBUG_TRACE,"nssov_service_byname(%s,%s)\n",cbp.name.bv_val,cbp.prot.bv_val ? cbp.prot.bv_val : "");,
  	NSLCD_ACTION_SERVICE_BYNAME,
  	mkfilter_service_byname(cbp.mi,&cbp.name,&cbp.prot,&filter)
  )
  
  NSSOV_HANDLE(
  	service,bynumber,
  	int number;
  	char fbuf[1024];
  	struct berval filter = {sizeof(fbuf)};
  	filter.bv_val = fbuf;
  	READ_INT32(fp,number);
  	cbp.name.bv_val = cbp.nbuf;
  	cbp.name.bv_len = snprintf(cbp.nbuf,sizeof(cbp.nbuf),"%d",number);
  	READ_STRING(fp,cbp.pbuf);
  	cbp.prot.bv_len = tmpint32;
  	cbp.prot.bv_val = tmpint32 ? cbp.pbuf : NULL;,
  	Debug(LDAP_DEBUG_TRACE,"nssov_service_bynumber(%s,%s)\n",cbp.name.bv_val,cbp.prot.bv_val);,
  	NSLCD_ACTION_SERVICE_BYNUMBER,
  	mkfilter_service_bynumber(cbp.mi,&cbp.name,&cbp.prot,&filter)
  )
  
  NSSOV_HANDLE(
  	service,all,
  	struct berval filter;
  	/* no parameters to read */
  	BER_BVZERO(&cbp.prot);,
  	Debug(LDAP_DEBUG_TRACE,"nssov_service_all()\n");,
  	NSLCD_ACTION_SERVICE_ALL,
  	(filter=cbp.mi->mi_filter,0)
  )
  