/* * This file is part of the Sofia-SIP package * * Copyright (C) 2005 Nokia Corporation. * * Contact: Pekka Pessi * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ /**@CFILE sip_extra.c * @brief Non-critical SIP headers * * This file contains implementation of @CallInfo, @ErrorInfo, * @Organization, @Priority, @RetryAfter, @Server, @Subject, * @Timestamp, and @UserAgent headers. * * @author Pekka Pessi . * * @date Created: Tue Jun 13 02:57:51 2000 ppessi */ #include "config.h" /* Avoid casting sip_t to msg_pub_t and sip_header_t to msg_header_t */ #define MSG_PUB_T struct sip_s #define MSG_HDR_T union sip_header_u #include "sofia-sip/sip_parser.h" #include "sofia-sip/sip_extra.h" #include #include #include #include /* ====================================================================== */ static issize_t sip_info_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen); static isize_t sip_info_dup_xtra(sip_header_t const *h, isize_t offset); static char *sip_info_dup_one(sip_header_t *dst, sip_header_t const *src, char *b, isize_t xtra); #define sip_info_update NULL /* ====================================================================== */ /**@SIP_HEADER sip_call_info Call-Info Header * * The Call-Info header provides additional information about the caller or * callee. Its syntax is defined in @RFC3261 as follows: * * @code * Call-Info = "Call-Info" HCOLON info *(COMMA info) * info = LAQUOT absoluteURI RAQUOT *( SEMI info-param) * info-param = ( "purpose" EQUAL ( "icon" / "info" * / "card" / token ) ) / generic-param * @endcode * * * The parsed Call-Info header is stored in #sip_call_info_t structure. */ /**@ingroup sip_call_info * @typedef struct sip_call_info_s sip_call_info_t; * * The structure #sip_call_info_t contains representation of an * @CallInfo header. * * The #sip_call_info_t is defined as follows: * @code * struct sip_call_info_s * { * sip_common_t ci_common[1]; // Common fragment info * sip_call_info_t *ci_next; // Link to next @CallInfo * url_t ci_url[1]; // URI to call info * msg_param_t const *ci_params; // List of parameters * char const *ci_purpose; // Value of @b purpose parameter * }; * @endcode */ #define sip_call_info_dup_xtra sip_info_dup_xtra #define sip_call_info_dup_one sip_info_dup_one static msg_update_f sip_call_info_update; msg_hclass_t sip_call_info_class[] = SIP_HEADER_CLASS(call_info, "Call-Info", "", ci_params, append, call_info); issize_t sip_call_info_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { issize_t retval = sip_info_d(home, h, s, slen); if (retval == 0) for (;h; h = h->sh_next) msg_header_update_params(h->sh_common, 0); return retval; } issize_t sip_call_info_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { sip_call_info_t *ci = (sip_call_info_t *)h; assert(sip_call_info_p(h)); return sip_name_addr_e(b, bsiz, f, NULL, 1, ci->ci_url, ci->ci_params, NULL); } /** @internal * Update parameter in a @CallInfo object. * */ static int sip_call_info_update(msg_common_t *h, char const *name, isize_t namelen, char const *value) { sip_call_info_t *ci = (sip_call_info_t *)h; if (name == NULL) { ci->ci_purpose = NULL; } else if (namelen == strlen("purpose") && !strncasecmp(name, "purpose", namelen)) { ci->ci_purpose = value; } return 0; } /* ====================================================================== */ /**@SIP_HEADER sip_error_info Error-Info Header * * The Error-Info header provides a pointer to additional information about * the error status response. Its syntax is defined in @RFC3261 as follows: * * @code * Error-Info = "Error-Info" HCOLON error-uri *(COMMA error-uri) * error-uri = LAQUOT absoluteURI RAQUOT *( SEMI generic-param ) * @endcode * * * The parsed Error-Info header is stored in #sip_error_info_t structure. */ /**@ingroup sip_error_info * @typedef struct sip_error_info_s sip_error_info_t; * * The structure #sip_error_info_t contains representation of an * @ErrorInfo header. * * The #sip_error_info_t is defined as follows: * @code * struct sip_error_info_s * { * sip_common_t ei_common[1]; // Common fragment info * sip_error_info_t *ei_next; // Link to next @ErrorInfo * url_t ei_url[1]; // URI to error info * msg_param_t const *ei_params; // List of parameters * }; * @endcode */ msg_hclass_t sip_error_info_class[] = SIP_HEADER_CLASS(error_info, "Error-Info", "", ei_params, append, info); issize_t sip_error_info_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { return sip_info_d(home, h, s, slen); } issize_t sip_error_info_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { sip_error_info_t const *ei = h->sh_error_info; assert(sip_error_info_p(h)); return sip_name_addr_e(b, bsiz, f, NULL, 1, ei->ei_url, ei->ei_params, NULL); } /* ====================================================================== */ /**@SIP_HEADER sip_in_reply_to In-Reply-To Header * * The @b In-Reply-To request header field enumerates the * @ref sip_call_id "Call-IDs" that this call references or returns. * Its syntax is defined in @RFC3261 as follows: * * @code * In-Reply-To = "In-Reply-To" HCOLON callid *(COMMA callid) * @endcode * * The parsed In-Reply-To header is stored in #sip_in_reply_to_t structure. */ /**@ingroup sip_in_reply_to * @typedef struct msg_list_s sip_in_reply_to_t; * * The structure #sip_in_reply_to_t contains representation of SIP * @InReplyTo header. * * The #sip_in_reply_to_t is defined as follows: * @code * typedef struct msg_list_s * { * msg_common_t k_common[1]; // Common fragment info * msg_list_t *k_next; // Link to next header * msg_param_t *k_items; // List of call ids * } sip_allow_events_t; * @endcode */ msg_hclass_t sip_in_reply_to_class[] = SIP_HEADER_CLASS_LIST(in_reply_to, "In-Reply-To", "", list); issize_t sip_in_reply_to_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { return msg_list_d(home, h, s, slen); } issize_t sip_in_reply_to_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { assert(sip_in_reply_to_p(h)); return msg_list_e(b, bsiz, h, f); } /* ====================================================================== */ /**@SIP_HEADER sip_organization Organization Header * * The Organization header field conveys the name of the organization to * which the entity issuing the request or response belongs. Its syntax is * defined in @RFC3261 as follows: * * @code * Organization = "Organization" HCOLON [TEXT-UTF8-TRIM] * @endcode * * * The parsed Organization header is stored in #sip_organization_t structure. */ /**@ingroup sip_organization * @typedef struct msg_generic_s sip_organization_t; * * The structure #sip_organization_t contains representation of a SIP * @Organization header. * * The #sip_organization_t is defined as follows: * @code * typedef struct msg_generic_s * { * msg_common_t g_common[1]; // Common fragment info * msg_generic_t *g_next; // Link to next header * char const *g_string; // Organization text * } sip_organization_t; * @endcode */ msg_hclass_t sip_organization_class[] = SIP_HEADER_CLASS_G(organization, "Organization", "", single); issize_t sip_organization_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { return sip_generic_d(home, h, s, slen); } issize_t sip_organization_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { assert(sip_organization_p(h)); return sip_generic_e(b, bsiz, h, f); } /* ====================================================================== */ /**@SIP_HEADER sip_priority Priority Header * * The Priority request-header field indicates the urgency of the request as * perceived by the client. Its syntax is defined in @RFC3261 as follows: * * @code * Priority = "Priority" HCOLON priority-value * priority-value = "emergency" / "urgent" / "normal" * / "non-urgent" / other-priority * other-priority = token * @endcode * * * The parsed Priority header is stored in #sip_priority_t structure. */ /**@ingroup sip_priority * @typedef struct msg_generic_s sip_priority_t; * * The structure #sip_priority_t contains representation of a SIP * @Priority header. * * The #sip_priority_t is defined as follows: * @code * typedef struct msg_generic_s * { * msg_common_t g_common[1]; // Common fragment info * msg_generic_t *g_next; // Dummy link to next header * char const *g_string; // Priority token * } sip_priority_t; * @endcode */ msg_hclass_t sip_priority_class[] = SIP_HEADER_CLASS_G(priority, "Priority", "", single); issize_t sip_priority_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { sip_priority_t *priority = (sip_priority_t *)h; if (msg_token_d(&s, &priority->g_string) < 0) return -1; if (*s && !IS_LWS(*s)) /* Something extra after priority token? */ return -1; return 0; } issize_t sip_priority_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { assert(sip_priority_p(h)); return sip_generic_e(b, bsiz, h, f); } /* ====================================================================== */ /**@SIP_HEADER sip_server Server Header * * The Server response-header field contains information about the software * used by the user agent server to handle the request. Its syntax is * defined in @RFC2616 section 14.38 and @RFC3261 as follows: * * @code * Server = "Server" HCOLON server-val *(LWS server-val) * server-val = product / comment * product = token [SLASH product-version] * product-version = token * @endcode * * The parsed Server header is stored in #sip_server_t structure. */ /**@ingroup sip_server * @typedef struct msg_generic_s sip_server_t; * * The structure #sip_server_t contains representation of a SIP * @Server header. * * The #sip_server_t is defined as follows: * @code * typedef struct msg_generic_s * { * msg_common_t g_common[1]; // Common fragment info * msg_generic_t *g_next; // Link to next header * char const *g_string; // Server tokens * } sip_server_t; * @endcode */ msg_hclass_t sip_server_class[] = SIP_HEADER_CLASS_G(server, "Server", "", single); issize_t sip_server_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { return sip_generic_d(home, h, s, slen); } issize_t sip_server_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { assert(sip_server_p(h)); return sip_generic_e(b, bsiz, h, f); } /* ====================================================================== */ /**@SIP_HEADER sip_subject Subject Header * * The Subject header provides a summary or indicates the nature of the * request. Its syntax is defined in @RFC3261 as follows: * * @code * Subject = ( "Subject" / "s" ) HCOLON [TEXT-UTF8-TRIM] * @endcode * * The parsed Subject header is stored in #sip_subject_t structure. */ /**@ingroup sip_subject * @typedef struct msg_generic_s sip_subject_t; * * The structure #sip_subject_t contains representation of a SIP * @Subject header. * * The #sip_subject_t is defined as follows: * @code * typedef struct msg_generic_s * { * msg_common_t g_common[1]; // Common fragment info * msg_generic_t *g_next; // Link to next header * char const *g_string; // Subject text * } sip_subject_t; * @endcode */ msg_hclass_t sip_subject_class[] = SIP_HEADER_CLASS_G(subject, "Subject", "s", single); issize_t sip_subject_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { return sip_generic_d(home, h, s, slen); } issize_t sip_subject_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { assert(sip_subject_p(h)); return sip_generic_e(b, bsiz, h, f); } /* ====================================================================== */ /**@SIP_HEADER sip_timestamp Timestamp Header * * The @b Timestamp header describes when the client sent the request to the * server, and it is used by the client to adjust its retransmission * intervals. Its syntax is defined in @RFC3261 as follows: * * @code * Timestamp = "Timestamp" HCOLON 1*(DIGIT) * [ "." *(DIGIT) ] [ LWS delay ] * delay = *(DIGIT) [ "." *(DIGIT) ] * @endcode * * The parsed Timestamp header is stored in #sip_timestamp_t structure. */ /**@ingroup sip_timestamp * @typedef struct sip_timestamp_s sip_timestamp_t; * * The structure #sip_timestamp_t contains representation of a SIP * @Timestamp header. * * The #sip_timestamp_t is defined as follows: * @code * typedef struct sip_timestamp_s * { * sip_common_t ts_common[1]; // Common fragment info * sip_error_t *ts_next; // Dummy link * char const *ts_stamp; // Original timestamp * char const *ts_delay; // Delay at UAS * } sip_timestamp_t; * @endcode */ static isize_t sip_timestamp_dup_xtra(sip_header_t const *h, isize_t offset); static char *sip_timestamp_dup_one(sip_header_t *dst, sip_header_t const *src, char *b, isize_t xtra); #define sip_timestamp_update NULL msg_hclass_t sip_timestamp_class[] = SIP_HEADER_CLASS(timestamp, "Timestamp", "", ts_common, single, timestamp); issize_t sip_timestamp_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { sip_timestamp_t *ts = (sip_timestamp_t*)h; ts->ts_stamp = s; s += span_digit(s); if (s == ts->ts_stamp) return -1; if (*s == '.') { s += span_digit(s + 1) + 1; } if (IS_LWS(*s)) { *s = '\0'; s += span_lws(s + 1) + 1; ts->ts_delay = s; s += span_digit(s); if (*s == '.') { s += span_digit(s + 1) + 1; } } if (!*s || IS_LWS(*s)) *s++ = '\0'; else return -1; return 0; } issize_t sip_timestamp_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { sip_timestamp_t const *ts = h->sh_timestamp; char *end = b + bsiz, *b0 = b; assert(sip_timestamp_p(h)); MSG_STRING_E(b, end, ts->ts_stamp); if (ts->ts_delay) { MSG_CHAR_E(b, end, ' '); MSG_STRING_E(b, end, ts->ts_delay); } MSG_TERM_E(b, end); return b - b0; } static isize_t sip_timestamp_dup_xtra(sip_header_t const *h, isize_t offset) { sip_timestamp_t const *ts = h->sh_timestamp; offset += MSG_STRING_SIZE(ts->ts_stamp); offset += MSG_STRING_SIZE(ts->ts_delay); return offset; } static char *sip_timestamp_dup_one(sip_header_t *dst, sip_header_t const *src, char *b, isize_t xtra) { sip_timestamp_t *ts = dst->sh_timestamp; sip_timestamp_t const *o = src->sh_timestamp; char *end = b + xtra; MSG_STRING_DUP(b, ts->ts_stamp, o->ts_stamp); MSG_STRING_DUP(b, ts->ts_delay, o->ts_delay); assert(b <= end); (void)end; return b; } /* ====================================================================== */ /**@SIP_HEADER sip_user_agent User-Agent Header * * The User-Agent header contains information about the client user agent * originating the request. Its syntax is defined in [H14.43, S10.45] as * follows: * * @code * User-Agent = "User-Agent" HCOLON server-val *(LWS server-val) * server-val = product / comment * product = token [SLASH product-version] * product-version = token * @endcode * * The parsed User-Agent header is stored in #sip_user_agent_t structure. */ /**@ingroup sip_user_agent * @typedef struct msg_generic_s sip_user_agent_t; * * The structure #sip_user_agent_t contains representation of a SIP * @UserAgent header. * * The #sip_user_agent_t is defined as follows: * @code * typedef struct msg_generic_s * { * msg_common_t g_common[1]; // Common fragment info * msg_generic_t *g_next; // Link to next header * char const *g_string; // User-Agent components * } sip_user_agent_t; * @endcode */ msg_hclass_t sip_user_agent_class[] = SIP_HEADER_CLASS_G(user_agent, "User-Agent", "", single); issize_t sip_user_agent_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { return sip_generic_d(home, h, s, slen); } issize_t sip_user_agent_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { assert(sip_user_agent_p(h)); return sip_generic_e(b, bsiz, h, f); } /* ====================================================================== */ /**@SIP_HEADER sip_etag SIP-ETag Header * * The @b SIP-ETag header field identifies the published event state. Its * syntax is defined in @RFC3903 as follows: * * @code * SIP-ETag = "SIP-ETag" HCOLON entity-tag * entity-tag = token * @endcode * * The parsed SIP-ETag header is stored in #sip_etag_t structure. */ /**@ingroup sip_etag * @typedef struct msg_generic_s sip_etag_t; * * The structure #sip_etag_t contains representation of a SIP * @SIPETag header. * * The #sip_etag_t is defined as follows: * @code * typedef struct msg_generic_s * { * msg_common_t g_common[1]; // Common fragment info * msg_generic_t *g_next; // Link to next header * char const *g_string; // entity-tag * } sip_etag_t; * @endcode */ msg_hclass_t sip_etag_class[] = SIP_HEADER_CLASS_G(etag, "SIP-ETag", "", single); issize_t sip_etag_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { sip_etag_t *etag = (sip_etag_t *)h; return msg_token_d(&s, &etag->g_value); } issize_t sip_etag_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { return msg_generic_e(b, bsiz, h, f); } /* ====================================================================== */ /**@SIP_HEADER sip_if_match SIP-If-Match Header * * The @b SIP-If-Match header field identifies the specific entity of event * state that the request is refreshing, modifying or removing. Its syntax * is defined in @RFC3903 as follows: * * @code * SIP-If-Match = "SIP-If-Match" HCOLON entity-tag * entity-tag = token * @endcode * * The parsed SIP-If-Match header is stored in #sip_if_match_t structure. */ /**@ingroup sip_if_match * @typedef struct msg_generic_s sip_if_match_t; * * The structure #sip_if_match_t contains representation of a SIP * @SIPIfMatch header. * * The #sip_if_match_t is defined as follows: * @code * typedef struct msg_generic_s * { * msg_common_t g_common[1]; // Common fragment info * msg_generic_t *g_next; // Link to next header * char const *g_string; // entity-tag * } sip_if_match_t; * @endcode */ msg_hclass_t sip_if_match_class[] = SIP_HEADER_CLASS_G(if_match, "SIP-If-Match", "", single); issize_t sip_if_match_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { return sip_etag_d(home, h, s, slen); } issize_t sip_if_match_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { return sip_etag_e(b, bsiz, h, f); } /* ====================================================================== */ /** Parsing @CallInfo, @ErrorInfo. */ static issize_t sip_info_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { sip_call_info_t *ci = h->sh_call_info; char *end = s + slen; assert(h); while (*s == ',') s += span_lws(s + 1) + 1; if (sip_name_addr_d(home, &s, NULL, ci->ci_url, &ci->ci_params, NULL) < 0) return -1; /* Recurse */ return msg_parse_next_field(home, h, s, end - s); } isize_t sip_info_dup_xtra(sip_header_t const *h, isize_t offset) { sip_call_info_t const *ci = h->sh_call_info; MSG_PARAMS_SIZE(offset, ci->ci_params); offset += url_xtra(ci->ci_url); return offset; } char *sip_info_dup_one(sip_header_t *dst, sip_header_t const *src, char *b, isize_t xtra) { sip_call_info_t *ci = dst->sh_call_info; sip_call_info_t const *o = src->sh_call_info; char *end = b + xtra; b = msg_params_dup(&ci->ci_params, o->ci_params, b, xtra); URL_DUP(b, end, ci->ci_url, o->ci_url); assert(b <= end); return b; } /* ====================================================================== */ /**@SIP_HEADER sip_suppress_body_if_match Suppress-Body-If-Match Header * * The @b Suppress-Body-If-Match header field identifies a SIP event content * already known by the watcher. Its syntax is defined in * draft-niemi-sip-subnot-etags-01 as follows: * * @code * Suppress-Body-If-Match = "Suppress-Body-If-Match" HCOLON entity-tag * entity-tag = token * @endcode * * The parsed Suppress-Body-If-Match header is stored in * #sip_suppress_body_if_match_t structure. * * @sa @RFC3265, draft-niemi-sip-subnot-etags-01.txt * * @NEW_1_12_5. Note that #sip_t does not contain @a * sip_suppress_body_if_match field, but sip_suppress_body_if_match() * function should be used for accessing the @b Suppress-Body-If-Match * header structure. */ /**@ingroup sip_suppress_body_if_match * @typedef struct sip_suppress_body_if_match_s sip_suppress_body_if_match_t; * * The structure #sip_suppress_body_if_match_t contains representation of a * SIP @SuppressBodyIfMatch header. * * The #sip_suppress_body_if_match_t is defined as follows: * @code * typedef struct sip_suppress_body_if_match_s * { * sip_common_t sbim_common[1]; // Common fragment info * sip_error_t *sbim_next; // Dummy link to next header * char const *sbim_tag; // entity-tag * } sip_suppress_body_if_match_t; * @endcode */ #define sip_suppress_body_if_match_dup_xtra msg_generic_dup_xtra #define sip_suppress_body_if_match_dup_one msg_generic_dup_one #define sip_suppress_body_if_match_update NULL msg_hclass_t sip_suppress_body_if_match_class[] = SIP_HEADER_CLASS(suppress_body_if_match, "Suppress-Body-If-Match", "", sbim_common, single, suppress_body_if_match); issize_t sip_suppress_body_if_match_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { sip_suppress_body_if_match_t *sbim = (void *)h; return msg_token_d(&s, &sbim->sbim_tag); } issize_t sip_suppress_body_if_match_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { return sip_etag_e(b, bsiz, h, f); } /* ====================================================================== */ /**@SIP_HEADER sip_suppress_notify_if_match Suppress-Notify-If-Match Header * * The @b Suppress-Notify-If-Match header is used to suppress * superfluous NOTIFY transactions. Its syntax is defined in * draft-niemi-sip-subnot-etags-01 as follows: * * @code * Suppress-Notify-If-Match = "Suppress-Notify-If-Match" HCOLON entity-tag * entity-tag = token * @endcode * * The parsed Suppress-Notify-If-Match header is stored in * #sip_suppress_notify_if_match_t structure. * * @sa @RFC3265, draft-niemi-sip-subnot-etag-01 * * @NEW_1_12_5. Note that #sip_t does not contain @a * sip_suppress_notify_if_match field, but sip_suppress_notify_if_match() * function should be used for accessing the @b Suppress-Notify-If-Match * header structure. */ /**@ingroup sip_suppress_notify_if_match * @typedef struct sip_suppress_notify_if_match_s \ * sip_suppress_notify_if_match_t; * * The structure #sip_suppress_notify_if_match_t contains representation of a * SIP @SuppressNotifyIfMatch header. * * The #sip_suppress_notify_if_match_t is defined as follows: * @code * typedef struct sip_suppress_notify_if_match_s * { * sip_common_t snim_common[1]; // Common fragment info * sip_error_t *snim_next; // Dummy link to next header * char const *snim_tag; // entity-tag * } sip_suppress_notify_if_match_t; * @endcode */ #define sip_suppress_notify_if_match_dup_xtra msg_generic_dup_xtra #define sip_suppress_notify_if_match_dup_one msg_generic_dup_one #define sip_suppress_notify_if_match_update NULL msg_hclass_t sip_suppress_notify_if_match_class[] = SIP_HEADER_CLASS(suppress_notify_if_match, "Suppress-Notify-If-Match", "", snim_common, single, suppress_notify_if_match); issize_t sip_suppress_notify_if_match_d(su_home_t *home, sip_header_t *h, char *s, isize_t slen) { sip_suppress_notify_if_match_t *snim = (void *)h; return msg_token_d(&s, &snim->snim_tag); } issize_t sip_suppress_notify_if_match_e(char b[], isize_t bsiz, sip_header_t const *h, int f) { return msg_generic_e(b, bsiz, h, f); }