90 lines
3.2 KiB
C
90 lines
3.2 KiB
C
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/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2010, Digium, Inc.
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*!
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* \file
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* \brief sip utils header file
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*/
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#ifndef _SIP_UTILS_H
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#define _SIP_UTILS_H
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/* wrapper macro to tell whether t points to one of the sip_tech descriptors */
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#define IS_SIP_TECH(t) ((t) == &sip_tech || (t) == &sip_tech_info)
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/*!
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* \brief converts ascii port to int representation.
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*
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* \arg pt[in] string that contains a port.
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* \arg standard[in] port to return in case the port string input is NULL
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* or if there is a parsing error.
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*
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* \return An integer port representation.
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*/
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unsigned int port_str2int(const char *pt, unsigned int standard);
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/*! \brief Locate closing quote in a string, skipping escaped quotes.
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* optionally with a limit on the search.
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* start must be past the first quote.
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*/
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const char *find_closing_quote(const char *start, const char *lim);
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/*! \brief Convert SIP hangup causes to Asterisk hangup causes */
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int hangup_sip2cause(int cause);
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/*! \brief Convert Asterisk hangup causes to SIP codes
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\verbatim
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Possible values from causes.h
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AST_CAUSE_NOTDEFINED AST_CAUSE_NORMAL AST_CAUSE_BUSY
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AST_CAUSE_FAILURE AST_CAUSE_CONGESTION AST_CAUSE_UNALLOCATED
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In addition to these, a lot of PRI codes is defined in causes.h
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...should we take care of them too ?
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Quote RFC 3398
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ISUP Cause value SIP response
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---------------- ------------
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1 unallocated number 404 Not Found
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2 no route to network 404 Not found
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3 no route to destination 404 Not found
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16 normal call clearing --- (*)
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17 user busy 486 Busy here
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18 no user responding 408 Request Timeout
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19 no answer from the user 480 Temporarily unavailable
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20 subscriber absent 480 Temporarily unavailable
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21 call rejected 403 Forbidden (+)
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22 number changed (w/o diagnostic) 410 Gone
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22 number changed (w/ diagnostic) 301 Moved Permanently
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23 redirection to new destination 410 Gone
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26 non-selected user clearing 404 Not Found (=)
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27 destination out of order 502 Bad Gateway
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28 address incomplete 484 Address incomplete
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29 facility rejected 501 Not implemented
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31 normal unspecified 480 Temporarily unavailable
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\endverbatim
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*/
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const char *hangup_cause2sip(int cause);
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/*! \brief Return a string describing the force_rport value for the given flags */
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const char *force_rport_string(struct ast_flags *flags);
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/*! \brief Return a string describing the comedia value for the given flags */
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const char *comedia_string(struct ast_flags *flags);
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#endif
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