1 #ifndef fooclientlookuphfoo 2 #define fooclientlookuphfoo 3 4 /*** 5 This file is part of avahi. 6 7 avahi is free software; you can redistribute it and/or modify it 8 under the terms of the GNU Lesser General Public License as 9 published by the Free Software Foundation; either version 2.1 of the 10 License, or (at your option) any later version. 11 12 avahi is distributed in the hope that it will be useful, but WITHOUT 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General 15 Public License for more details. 16 17 You should have received a copy of the GNU Lesser General Public 18 License along with avahi; if not, write to the Free Software 19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 20 USA. 21 ***/ 22 23 #include <inttypes.h> 24 25 #include <avahi-common/cdecl.h> 26 #include <avahi-common/address.h> 27 #include <avahi-common/strlst.h> 28 #include <avahi-common/defs.h> 29 #include <avahi-common/watch.h> 30 #include <avahi-common/gccmacro.h> 31 32 #include <avahi-client/client.h> 33 34 /** \file avahi-client/lookup.h Lookup Client API */ 35 36 /** \example client-browse-services.c Example how to browse for DNS-SD 37 * services using the client interface to avahi-daemon. */ 38 39 AVAHI_C_DECL_BEGIN 40 41 /** @{ \name Domain Browser */ 42 43 /** A domain browser object */ 44 typedef struct AvahiDomainBrowser AvahiDomainBrowser; 45 46 /** The function prototype for the callback of an AvahiDomainBrowser */ 47 typedef void (*AvahiDomainBrowserCallback) ( 48 AvahiDomainBrowser *b, 49 AvahiIfIndex interface, 50 AvahiProtocol protocol, 51 AvahiBrowserEvent event, 52 const char *domain, 53 AvahiLookupResultFlags flags, 54 void *userdata); 55 56 /** Browse for domains on the local network */ 57 AvahiDomainBrowser* avahi_domain_browser_new ( 58 AvahiClient *client, 59 AvahiIfIndex interface, 60 AvahiProtocol protocol, 61 const char *domain, 62 AvahiDomainBrowserType btype, 63 AvahiLookupFlags flags, 64 AvahiDomainBrowserCallback callback, 65 void *userdata); 66 67 /** Get the parent client of an AvahiDomainBrowser object */ 68 AvahiClient* avahi_domain_browser_get_client (AvahiDomainBrowser *); 69 70 /** Cleans up and frees an AvahiDomainBrowser object */ 71 int avahi_domain_browser_free (AvahiDomainBrowser *); 72 73 /** @} */ 74 75 /** @{ \name Service Browser */ 76 77 /** A service browser object */ 78 typedef struct AvahiServiceBrowser AvahiServiceBrowser; 79 80 /** The function prototype for the callback of an AvahiServiceBrowser */ 81 typedef void (*AvahiServiceBrowserCallback) ( 82 AvahiServiceBrowser *b, 83 AvahiIfIndex interface, 84 AvahiProtocol protocol, 85 AvahiBrowserEvent event, 86 const char *name, 87 const char *type, 88 const char *domain, 89 AvahiLookupResultFlags flags, 90 void *userdata); 91 92 /** Browse for services of a type on the network. In most cases you 93 * probably want to pass AVAHI_IF_UNSPEC and AVAHI_PROTO_UNSPED in 94 * interface, resp. protocol to browse on all local networks. The 95 * specified callback will be called whenever a new service appears 96 * or is removed from the network. Please note that events may be 97 * collapsed to minimize traffic (i.e. a REMOVED followed by a NEW for 98 * the same service data is dropped because redundant). If you want to 99 * subscribe to service data changes, you should use 100 * avahi_service_resolver_new() and keep it open, in which case you 101 * will be notified via AVAHI_RESOLVE_FOUND everytime the service data 102 * changes. */ 103 AvahiServiceBrowser* avahi_service_browser_new ( 104 AvahiClient *client, 105 AvahiIfIndex interface, /**< In most cases pass AVAHI_IF_UNSPEC here */ 106 AvahiProtocol protocol, /**< In most cases pass AVAHI_PROTO_UNSPEC here */ 107 const char *type, /**< A service type such as "_http._tcp" */ 108 const char *domain, /**< A domain to browse in. In most cases you want to pass NULL here for the default domain (usually ".local") */ 109 AvahiLookupFlags flags, 110 AvahiServiceBrowserCallback callback, 111 void *userdata); 112 113 /** Get the parent client of an AvahiServiceBrowser object */ 114 AvahiClient* avahi_service_browser_get_client (AvahiServiceBrowser *); 115 116 /** Cleans up and frees an AvahiServiceBrowser object */ 117 int avahi_service_browser_free (AvahiServiceBrowser *); 118 119 /** @} */ 120 121 /** \cond fulldocs */ 122 /** A service type browser object */ 123 typedef struct AvahiServiceTypeBrowser AvahiServiceTypeBrowser; 124 125 /** The function prototype for the callback of an AvahiServiceTypeBrowser */ 126 typedef void (*AvahiServiceTypeBrowserCallback) ( 127 AvahiServiceTypeBrowser *b, 128 AvahiIfIndex interface, 129 AvahiProtocol protocol, 130 AvahiBrowserEvent event, 131 const char *type, 132 const char *domain, 133 AvahiLookupResultFlags flags, 134 void *userdata); 135 136 /** Browse for service types on the local network */ 137 AvahiServiceTypeBrowser* avahi_service_type_browser_new ( 138 AvahiClient *client, 139 AvahiIfIndex interface, 140 AvahiProtocol protocol, 141 const char *domain, 142 AvahiLookupFlags flags, 143 AvahiServiceTypeBrowserCallback callback, 144 void *userdata); 145 146 /** Get the parent client of an AvahiServiceTypeBrowser object */ 147 AvahiClient* avahi_service_type_browser_get_client (AvahiServiceTypeBrowser *); 148 149 /** Cleans up and frees an AvahiServiceTypeBrowser object */ 150 int avahi_service_type_browser_free (AvahiServiceTypeBrowser *); 151 152 /** \endcond */ 153 154 /** @{ \name Service Resolver */ 155 156 /** A service resolver object */ 157 typedef struct AvahiServiceResolver AvahiServiceResolver; 158 159 /** The function prototype for the callback of an AvahiServiceResolver */ 160 typedef void (*AvahiServiceResolverCallback) ( 161 AvahiServiceResolver *r, 162 AvahiIfIndex interface, 163 AvahiProtocol protocol, 164 AvahiResolverEvent event, 165 const char *name, 166 const char *type, 167 const char *domain, 168 const char *host_name, 169 const AvahiAddress *a, 170 uint16_t port, 171 AvahiStringList *txt, 172 AvahiLookupResultFlags flags, 173 void *userdata); 174 175 /** Create a new service resolver object. Please make sure to pass all 176 * the service data you received via avahi_service_browser_new()'s 177 * callback function, especially interface and protocol. The protocol 178 * argument specifies the protocol (IPv4 or IPv6) to use as transport 179 * for the queries which are sent out by this resolver. The 180 * aprotocol argument specifies the adress family (IPv4 or IPv6) of 181 * the address of the service we are looking for. Generally, on 182 * "protocol" you should only pass what was supplied to you as 183 * parameter to your AvahiServiceBrowserCallback. In "aprotocol" you 184 * should pass what your application code can deal with when 185 * connecting to the service. Or, more technically speaking: protocol 186 * specifies if the mDNS queries should be sent as UDP/IPv4 187 * resp. UDP/IPv6 packets. aprotocol specifies whether the query is for a A 188 * resp. AAAA resource record. */ 189 AvahiServiceResolver * avahi_service_resolver_new( 190 AvahiClient *client, 191 AvahiIfIndex interface, /**< Pass the interface argument you received in AvahiServiceBrowserCallback here. */ 192 AvahiProtocol protocol, /**< Pass the protocol argument you received in AvahiServiceBrowserCallback here. */ 193 const char *name, /**< Pass the name argument you received in AvahiServiceBrowserCallback here. */ 194 const char *type, /**< Pass the type argument you received in AvahiServiceBrowserCallback here. */ 195 const char *domain, /**< Pass the domain argument you received in AvahiServiceBrowserCallback here. */ 196 AvahiProtocol aprotocol, /**< The desired address family of the service address to resolve. AVAHI_PROTO_UNSPEC if your application can deal with both IPv4 and IPv6 */ 197 AvahiLookupFlags flags, 198 AvahiServiceResolverCallback callback, 199 void *userdata); 200 201 /** Get the parent client of an AvahiServiceResolver object */ 202 AvahiClient* avahi_service_resolver_get_client (AvahiServiceResolver *); 203 204 /** Free a service resolver object */ 205 int avahi_service_resolver_free(AvahiServiceResolver *r); 206 207 /** @} */ 208 209 /** \cond fulldocs */ 210 /** A service resolver object */ 211 typedef struct AvahiHostNameResolver AvahiHostNameResolver; 212 213 /** The function prototype for the callback of an AvahiHostNameResolver */ 214 typedef void (*AvahiHostNameResolverCallback) ( 215 AvahiHostNameResolver *r, 216 AvahiIfIndex interface, 217 AvahiProtocol protocol, 218 AvahiResolverEvent event, 219 const char *name, 220 const AvahiAddress *a, 221 AvahiLookupResultFlags flags, 222 void *userdata); 223 224 /** Create a new hostname resolver object */ 225 AvahiHostNameResolver * avahi_host_name_resolver_new( 226 AvahiClient *client, 227 AvahiIfIndex interface, 228 AvahiProtocol protocol, 229 const char *name, 230 AvahiProtocol aprotocol, 231 AvahiLookupFlags flags, 232 AvahiHostNameResolverCallback callback, 233 void *userdata); 234 235 /** Get the parent client of an AvahiHostNameResolver object */ 236 AvahiClient* avahi_host_name_resolver_get_client (AvahiHostNameResolver *); 237 238 /** Free a hostname resolver object */ 239 int avahi_host_name_resolver_free(AvahiHostNameResolver *r); 240 241 /** An address resolver object */ 242 typedef struct AvahiAddressResolver AvahiAddressResolver; 243 244 /** The function prototype for the callback of an AvahiAddressResolver */ 245 typedef void (*AvahiAddressResolverCallback) ( 246 AvahiAddressResolver *r, 247 AvahiIfIndex interface, 248 AvahiProtocol protocol, 249 AvahiResolverEvent event, 250 const AvahiAddress *a, 251 const char *name, 252 AvahiLookupResultFlags flags, 253 void *userdata); 254 255 /** Create a new address resolver object from an AvahiAddress object */ 256 AvahiAddressResolver* avahi_address_resolver_new( 257 AvahiClient *client, 258 AvahiIfIndex interface, 259 AvahiProtocol protocol, 260 const AvahiAddress *a, 261 AvahiLookupFlags flags, 262 AvahiAddressResolverCallback callback, 263 void *userdata); 264 265 /** Get the parent client of an AvahiAddressResolver object */ 266 AvahiClient* avahi_address_resolver_get_client (AvahiAddressResolver *); 267 268 /** Free a AvahiAddressResolver resolver object */ 269 int avahi_address_resolver_free(AvahiAddressResolver *r); 270 271 /** \endcond */ 272 273 /** @{ \name Record Browser */ 274 275 /** A record browser object */ 276 typedef struct AvahiRecordBrowser AvahiRecordBrowser; 277 278 /** The function prototype for the callback of an AvahiRecordBrowser */ 279 typedef void (*AvahiRecordBrowserCallback) ( 280 AvahiRecordBrowser *b, 281 AvahiIfIndex interface, 282 AvahiProtocol protocol, 283 AvahiBrowserEvent event, 284 const char *name, 285 uint16_t clazz, 286 uint16_t type, 287 const void *rdata, 288 size_t size, 289 AvahiLookupResultFlags flags, 290 void *userdata); 291 292 /** Browse for records of a type on the local network */ 293 AvahiRecordBrowser* avahi_record_browser_new( 294 AvahiClient *client, 295 AvahiIfIndex interface, 296 AvahiProtocol protocol, 297 const char *name, 298 uint16_t clazz, 299 uint16_t type, 300 AvahiLookupFlags flags, 301 AvahiRecordBrowserCallback callback, 302 void *userdata); 303 304 /** Get the parent client of an AvahiRecordBrowser object */ 305 AvahiClient* avahi_record_browser_get_client(AvahiRecordBrowser *); 306 307 /** Cleans up and frees an AvahiRecordBrowser object */ 308 int avahi_record_browser_free(AvahiRecordBrowser *); 309 310 /** @} */ 311 312 AVAHI_C_DECL_END 313 314 #endif 315