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/*
* $Id$
*
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*
* Copyright (C) 2001-2003 Fhg Fokus
*
* This file is part of ser, a free SIP server.
*
* ser is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* For a license to use the ser software under conditions
* other than those described here, or to purchase support for this
* software, please contact iptel.org by e-mail at the following addresses:
* info@iptel.org
*
* ser is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
* History:
* --------
* 2003-03-19 replaced all mallocs/frees w/ pkg_malloc/pkg_free (andrei)
*/
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#include "str.h"
#include "dprint.h"
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#include "mem/mem.h"
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struct host_alias{
str alias;
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unsigned short port;
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struct host_alias* next;
};
extern struct host_alias* aliases;
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/* returns 1 if name is in the alias list; if port=0, port no is ignored*/
static inline int grep_aliases(char* name, int len, unsigned short port)
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{
struct host_alias* a;
for(a=aliases;a;a=a->next)
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if ((a->alias.len==len) && ((a->port==0) || (port==0) ||
(a->port==port)) && (strncasecmp(a->alias.s, name, len)==0))
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return 1;
return 0;
}
/* adds an alias to the list (only if it isn't already there)
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* if port==0, the alias will match all the ports
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* returns 1 if a new alias was added, 0 if the alias was already on the list
* and -1 on error */
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static inline int add_alias(char* name, int len, unsigned short port)
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{
struct host_alias* a;
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if ((port) && grep_aliases(name,len, port)) return 0;
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a=0;
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a=(struct host_alias*)pkg_malloc(sizeof(struct host_alias));
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if(a==0) goto error;
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a->alias.s=(char*)pkg_malloc(len+1);
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if (a->alias.s==0) goto error;
a->alias.len=len;
memcpy(a->alias.s, name, len);
a->alias.s[len]=0; /* null terminate for easier printing*/
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a->port=port;
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a->next=aliases;
aliases=a;
return 1;
error:
LOG(L_ERR, "ERROR: add_alias: memory allocation error\n");
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if (a) pkg_free(a);
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return -1;
}
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