1 /* Copyright (C) 1991-2001, 2003, 2004, 2006, 2007, 2008 2 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, write to the Free 17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 18 02111-1307 USA. */ 19 20 #ifndef _NETINET_IN_H 21 #define _NETINET_IN_H 1 22 23 #include <features.h> 24 #include <stdint.h> 25 #include <sys/socket.h> 26 #include <bits/types.h> 27 28 29 __BEGIN_DECLS 30 31 /* Standard well-defined IP protocols. */ 32 enum 33 { 34 IPPROTO_IP = 0, /* Dummy protocol for TCP. */ 35 #define IPPROTO_IP IPPROTO_IP 36 IPPROTO_HOPOPTS = 0, /* IPv6 Hop-by-Hop options. */ 37 #define IPPROTO_HOPOPTS IPPROTO_HOPOPTS 38 IPPROTO_ICMP = 1, /* Internet Control Message Protocol. */ 39 #define IPPROTO_ICMP IPPROTO_ICMP 40 IPPROTO_IGMP = 2, /* Internet Group Management Protocol. */ 41 #define IPPROTO_IGMP IPPROTO_IGMP 42 IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94). */ 43 #define IPPROTO_IPIP IPPROTO_IPIP 44 IPPROTO_TCP = 6, /* Transmission Control Protocol. */ 45 #define IPPROTO_TCP IPPROTO_TCP 46 IPPROTO_EGP = 8, /* Exterior Gateway Protocol. */ 47 #define IPPROTO_EGP IPPROTO_EGP 48 IPPROTO_PUP = 12, /* PUP protocol. */ 49 #define IPPROTO_PUP IPPROTO_PUP 50 IPPROTO_UDP = 17, /* User Datagram Protocol. */ 51 #define IPPROTO_UDP IPPROTO_UDP 52 IPPROTO_IDP = 22, /* XNS IDP protocol. */ 53 #define IPPROTO_IDP IPPROTO_IDP 54 IPPROTO_TP = 29, /* SO Transport Protocol Class 4. */ 55 #define IPPROTO_TP IPPROTO_TP 56 IPPROTO_DCCP = 33, /* Datagram Congestion Control Protocol. */ 57 #define IPPROTO_DCCP IPPROTO_DCCP 58 IPPROTO_IPV6 = 41, /* IPv6 header. */ 59 #define IPPROTO_IPV6 IPPROTO_IPV6 60 IPPROTO_ROUTING = 43, /* IPv6 routing header. */ 61 #define IPPROTO_ROUTING IPPROTO_ROUTING 62 IPPROTO_FRAGMENT = 44, /* IPv6 fragmentation header. */ 63 #define IPPROTO_FRAGMENT IPPROTO_FRAGMENT 64 IPPROTO_RSVP = 46, /* Reservation Protocol. */ 65 #define IPPROTO_RSVP IPPROTO_RSVP 66 IPPROTO_GRE = 47, /* General Routing Encapsulation. */ 67 #define IPPROTO_GRE IPPROTO_GRE 68 IPPROTO_ESP = 50, /* encapsulating security payload. */ 69 #define IPPROTO_ESP IPPROTO_ESP 70 IPPROTO_AH = 51, /* authentication header. */ 71 #define IPPROTO_AH IPPROTO_AH 72 IPPROTO_ICMPV6 = 58, /* ICMPv6. */ 73 #define IPPROTO_ICMPV6 IPPROTO_ICMPV6 74 IPPROTO_NONE = 59, /* IPv6 no next header. */ 75 #define IPPROTO_NONE IPPROTO_NONE 76 IPPROTO_DSTOPTS = 60, /* IPv6 destination options. */ 77 #define IPPROTO_DSTOPTS IPPROTO_DSTOPTS 78 IPPROTO_MTP = 92, /* Multicast Transport Protocol. */ 79 #define IPPROTO_MTP IPPROTO_MTP 80 IPPROTO_ENCAP = 98, /* Encapsulation Header. */ 81 #define IPPROTO_ENCAP IPPROTO_ENCAP 82 IPPROTO_PIM = 103, /* Protocol Independent Multicast. */ 83 #define IPPROTO_PIM IPPROTO_PIM 84 IPPROTO_COMP = 108, /* Compression Header Protocol. */ 85 #define IPPROTO_COMP IPPROTO_COMP 86 IPPROTO_SCTP = 132, /* Stream Control Transmission Protocol. */ 87 #define IPPROTO_SCTP IPPROTO_SCTP 88 IPPROTO_UDPLITE = 136, /* UDP-Lite protocol. */ 89 #define IPPROTO_UDPLITE IPPROTO_UDPLITE 90 IPPROTO_RAW = 255, /* Raw IP packets. */ 91 #define IPPROTO_RAW IPPROTO_RAW 92 IPPROTO_MAX 93 }; 94 95 96 /* Type to represent a port. */ 97 typedef uint16_t in_port_t; 98 99 /* Standard well-known ports. */ 100 enum 101 { 102 IPPORT_ECHO = 7, /* Echo service. */ 103 IPPORT_DISCARD = 9, /* Discard transmissions service. */ 104 IPPORT_SYSTAT = 11, /* System status service. */ 105 IPPORT_DAYTIME = 13, /* Time of day service. */ 106 IPPORT_NETSTAT = 15, /* Network status service. */ 107 IPPORT_FTP = 21, /* File Transfer Protocol. */ 108 IPPORT_TELNET = 23, /* Telnet protocol. */ 109 IPPORT_SMTP = 25, /* Simple Mail Transfer Protocol. */ 110 IPPORT_TIMESERVER = 37, /* Timeserver service. */ 111 IPPORT_NAMESERVER = 42, /* Domain Name Service. */ 112 IPPORT_WHOIS = 43, /* Internet Whois service. */ 113 IPPORT_MTP = 57, 114 115 IPPORT_TFTP = 69, /* Trivial File Transfer Protocol. */ 116 IPPORT_RJE = 77, 117 IPPORT_FINGER = 79, /* Finger service. */ 118 IPPORT_TTYLINK = 87, 119 IPPORT_SUPDUP = 95, /* SUPDUP protocol. */ 120 121 122 IPPORT_EXECSERVER = 512, /* execd service. */ 123 IPPORT_LOGINSERVER = 513, /* rlogind service. */ 124 IPPORT_CMDSERVER = 514, 125 IPPORT_EFSSERVER = 520, 126 127 /* UDP ports. */ 128 IPPORT_BIFFUDP = 512, 129 IPPORT_WHOSERVER = 513, 130 IPPORT_ROUTESERVER = 520, 131 132 /* Ports less than this value are reserved for privileged processes. */ 133 IPPORT_RESERVED = 1024, 134 135 /* Ports greater this value are reserved for (non-privileged) servers. */ 136 IPPORT_USERRESERVED = 5000 137 }; 138 139 140 /* Internet address. */ 141 typedef uint32_t in_addr_t; 142 struct in_addr 143 { 144 in_addr_t s_addr; 145 }; 146 147 148 /* Definitions of the bits in an Internet address integer. 149 150 On subnets, host and network parts are found according to 151 the subnet mask, not these masks. */ 152 153 #define IN_CLASSA(a) ((((in_addr_t)(a)) & 0x80000000) == 0) 154 #define IN_CLASSA_NET 0xff000000 155 #define IN_CLASSA_NSHIFT 24 156 #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET) 157 #define IN_CLASSA_MAX 128 158 159 #define IN_CLASSB(a) ((((in_addr_t)(a)) & 0xc0000000) == 0x80000000) 160 #define IN_CLASSB_NET 0xffff0000 161 #define IN_CLASSB_NSHIFT 16 162 #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET) 163 #define IN_CLASSB_MAX 65536 164 165 #define IN_CLASSC(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000) 166 #define IN_CLASSC_NET 0xffffff00 167 #define IN_CLASSC_NSHIFT 8 168 #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) 169 170 #define IN_CLASSD(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000) 171 #define IN_MULTICAST(a) IN_CLASSD(a) 172 173 #define IN_EXPERIMENTAL(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000) 174 #define IN_BADCLASS(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000) 175 176 /* Address to accept any incoming messages. */ 177 #define INADDR_ANY ((in_addr_t) 0x00000000) 178 /* Address to send to all hosts. */ 179 #define INADDR_BROADCAST ((in_addr_t) 0xffffffff) 180 /* Address indicating an error return. */ 181 #define INADDR_NONE ((in_addr_t) 0xffffffff) 182 183 /* Network number for local host loopback. */ 184 #define IN_LOOPBACKNET 127 185 /* Address to loopback in software to local host. */ 186 #ifndef INADDR_LOOPBACK 187 # define INADDR_LOOPBACK ((in_addr_t) 0x7f000001) /* Inet 127.0.0.1. */ 188 #endif 189 190 /* Defines for Multicast INADDR. */ 191 #define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000) /* 224.0.0.0 */ 192 #define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001) /* 224.0.0.1 */ 193 #define INADDR_ALLRTRS_GROUP ((in_addr_t) 0xe0000002) /* 224.0.0.2 */ 194 #define INADDR_MAX_LOCAL_GROUP ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */ 195 196 197 /* IPv6 address */ 198 struct in6_addr 199 { 200 union 201 { 202 uint8_t __u6_addr8[16]; 203 #if defined __USE_MISC || defined __USE_GNU 204 uint16_t __u6_addr16[8]; 205 uint32_t __u6_addr32[4]; 206 #endif 207 } __in6_u; 208 #define s6_addr __in6_u.__u6_addr8 209 #if defined __USE_MISC || defined __USE_GNU 210 # define s6_addr16 __in6_u.__u6_addr16 211 # define s6_addr32 __in6_u.__u6_addr32 212 #endif 213 }; 214 215 extern const struct in6_addr in6addr_any; /* :: */ 216 extern const struct in6_addr in6addr_loopback; /* ::1 */ 217 #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } } 218 #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } } 219 220 #define INET_ADDRSTRLEN 16 221 #define INET6_ADDRSTRLEN 46 222 223 224 /* Structure describing an Internet socket address. */ 225 struct sockaddr_in 226 { 227 __SOCKADDR_COMMON (sin_); 228 in_port_t sin_port; /* Port number. */ 229 struct in_addr sin_addr; /* Internet address. */ 230 231 /* Pad to size of `struct sockaddr'. */ 232 unsigned char sin_zero[sizeof (struct sockaddr) - 233 __SOCKADDR_COMMON_SIZE - 234 sizeof (in_port_t) - 235 sizeof (struct in_addr)]; 236 }; 237 238 /* Ditto, for IPv6. */ 239 struct sockaddr_in6 240 { 241 __SOCKADDR_COMMON (sin6_); 242 in_port_t sin6_port; /* Transport layer port # */ 243 uint32_t sin6_flowinfo; /* IPv6 flow information */ 244 struct in6_addr sin6_addr; /* IPv6 address */ 245 uint32_t sin6_scope_id; /* IPv6 scope-id */ 246 }; 247 248 249 #if defined __USE_MISC || defined __USE_GNU 250 /* IPv4 multicast request. */ 251 struct ip_mreq 252 { 253 /* IP multicast address of group. */ 254 struct in_addr imr_multiaddr; 255 256 /* Local IP address of interface. */ 257 struct in_addr imr_interface; 258 }; 259 260 struct ip_mreq_source 261 { 262 /* IP multicast address of group. */ 263 struct in_addr imr_multiaddr; 264 265 /* IP address of source. */ 266 struct in_addr imr_interface; 267 268 /* IP address of interface. */ 269 struct in_addr imr_sourceaddr; 270 }; 271 #endif 272 273 274 /* Likewise, for IPv6. */ 275 struct ipv6_mreq 276 { 277 /* IPv6 multicast address of group */ 278 struct in6_addr ipv6mr_multiaddr; 279 280 /* local interface */ 281 unsigned int ipv6mr_interface; 282 }; 283 284 285 #if defined __USE_MISC || defined __USE_GNU 286 /* Multicast group request. */ 287 struct group_req 288 { 289 /* Interface index. */ 290 uint32_t gr_interface; 291 292 /* Group address. */ 293 struct sockaddr_storage gr_group; 294 }; 295 296 struct group_source_req 297 { 298 /* Interface index. */ 299 uint32_t gsr_interface; 300 301 /* Group address. */ 302 struct sockaddr_storage gsr_group; 303 304 /* Source address. */ 305 struct sockaddr_storage gsr_source; 306 }; 307 308 309 /* Full-state filter operations. */ 310 struct ip_msfilter 311 { 312 /* IP multicast address of group. */ 313 struct in_addr imsf_multiaddr; 314 315 /* Local IP address of interface. */ 316 struct in_addr imsf_interface; 317 318 /* Filter mode. */ 319 uint32_t imsf_fmode; 320 321 /* Number of source addresses. */ 322 uint32_t imsf_numsrc; 323 /* Source addresses. */ 324 struct in_addr imsf_slist[1]; 325 }; 326 327 #define IP_MSFILTER_SIZE(numsrc) (sizeof (struct ip_msfilter) \ 328 - sizeof (struct in_addr) \ 329 + (numsrc) * sizeof (struct in_addr)) 330 331 struct group_filter 332 { 333 /* Interface index. */ 334 uint32_t gf_interface; 335 336 /* Group address. */ 337 struct sockaddr_storage gf_group; 338 339 /* Filter mode. */ 340 uint32_t gf_fmode; 341 342 /* Number of source addresses. */ 343 uint32_t gf_numsrc; 344 /* Source addresses. */ 345 struct sockaddr_storage gf_slist[1]; 346 }; 347 348 #define GROUP_FILTER_SIZE(numsrc) (sizeof (struct group_filter) \ 349 - sizeof (struct sockaddr_storage) \ 350 + ((numsrc) \ 351 * sizeof (struct sockaddr_storage))) 352 #endif 353 354 355 /* Get system-specific definitions. */ 356 #include <bits/in.h> 357 358 /* Functions to convert between host and network byte order. 359 360 Please note that these functions normally take `unsigned long int' or 361 `unsigned short int' values as arguments and also return them. But 362 this was a short-sighted decision since on different systems the types 363 may have different representations but the values are always the same. */ 364 365 extern uint32_t ntohl (uint32_t __netlong) __THROW __attribute__ ((__const__)); 366 extern uint16_t ntohs (uint16_t __netshort) 367 __THROW __attribute__ ((__const__)); 368 extern uint32_t htonl (uint32_t __hostlong) 369 __THROW __attribute__ ((__const__)); 370 extern uint16_t htons (uint16_t __hostshort) 371 __THROW __attribute__ ((__const__)); 372 373 #include <endian.h> 374 375 /* Get machine dependent optimized versions of byte swapping functions. */ 376 #include <bits/byteswap.h> 377 378 #ifdef __OPTIMIZE__ 379 /* We can optimize calls to the conversion functions. Either nothing has 380 to be done or we are using directly the byte-swapping functions which 381 often can be inlined. */ 382 # if __BYTE_ORDER == __BIG_ENDIAN 383 /* The host byte order is the same as network byte order, 384 so these functions are all just identity. */ 385 # define ntohl(x) (x) 386 # define ntohs(x) (x) 387 # define htonl(x) (x) 388 # define htons(x) (x) 389 # else 390 # if __BYTE_ORDER == __LITTLE_ENDIAN 391 # define ntohl(x) __bswap_32 (x) 392 # define ntohs(x) __bswap_16 (x) 393 # define htonl(x) __bswap_32 (x) 394 # define htons(x) __bswap_16 (x) 395 # endif 396 # endif 397 #endif 398 399 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 400 (((__const uint32_t *) (a))[0] == 0 \ 401 && ((__const uint32_t *) (a))[1] == 0 \ 402 && ((__const uint32_t *) (a))[2] == 0 \ 403 && ((__const uint32_t *) (a))[3] == 0) 404 405 #define IN6_IS_ADDR_LOOPBACK(a) \ 406 (((__const uint32_t *) (a))[0] == 0 \ 407 && ((__const uint32_t *) (a))[1] == 0 \ 408 && ((__const uint32_t *) (a))[2] == 0 \ 409 && ((__const uint32_t *) (a))[3] == htonl (1)) 410 411 #define IN6_IS_ADDR_MULTICAST(a) (((__const uint8_t *) (a))[0] == 0xff) 412 413 #define IN6_IS_ADDR_LINKLOCAL(a) \ 414 ((((__const uint32_t *) (a))[0] & htonl (0xffc00000)) \ 415 == htonl (0xfe800000)) 416 417 #define IN6_IS_ADDR_SITELOCAL(a) \ 418 ((((__const uint32_t *) (a))[0] & htonl (0xffc00000)) \ 419 == htonl (0xfec00000)) 420 421 #define IN6_IS_ADDR_V4MAPPED(a) \ 422 ((((__const uint32_t *) (a))[0] == 0) \ 423 && (((__const uint32_t *) (a))[1] == 0) \ 424 && (((__const uint32_t *) (a))[2] == htonl (0xffff))) 425 426 #define IN6_IS_ADDR_V4COMPAT(a) \ 427 ((((__const uint32_t *) (a))[0] == 0) \ 428 && (((__const uint32_t *) (a))[1] == 0) \ 429 && (((__const uint32_t *) (a))[2] == 0) \ 430 && (ntohl (((__const uint32_t *) (a))[3]) > 1)) 431 432 #define IN6_ARE_ADDR_EQUAL(a,b) \ 433 ((((__const uint32_t *) (a))[0] == ((__const uint32_t *) (b))[0]) \ 434 && (((__const uint32_t *) (a))[1] == ((__const uint32_t *) (b))[1]) \ 435 && (((__const uint32_t *) (a))[2] == ((__const uint32_t *) (b))[2]) \ 436 && (((__const uint32_t *) (a))[3] == ((__const uint32_t *) (b))[3])) 437 438 #if defined __USE_MISC || defined __USE_GNU 439 /* Bind socket to a privileged IP port. */ 440 extern int bindresvport (int __sockfd, struct sockaddr_in *__sock_in) __THROW; 441 442 /* The IPv6 version of this function. */ 443 extern int bindresvport6 (int __sockfd, struct sockaddr_in6 *__sock_in) 444 __THROW; 445 #endif 446 447 448 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 449 (IN6_IS_ADDR_MULTICAST(a) \ 450 && ((((__const uint8_t *) (a))[1] & 0xf) == 0x1)) 451 452 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 453 (IN6_IS_ADDR_MULTICAST(a) \ 454 && ((((__const uint8_t *) (a))[1] & 0xf) == 0x2)) 455 456 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 457 (IN6_IS_ADDR_MULTICAST(a) \ 458 && ((((__const uint8_t *) (a))[1] & 0xf) == 0x5)) 459 460 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 461 (IN6_IS_ADDR_MULTICAST(a) \ 462 && ((((__const uint8_t *) (a))[1] & 0xf) == 0x8)) 463 464 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 465 (IN6_IS_ADDR_MULTICAST(a) \ 466 && ((((__const uint8_t *) (a))[1] & 0xf) == 0xe)) 467 468 469 #ifdef __USE_GNU 470 /* IPv6 packet information. */ 471 struct in6_pktinfo 472 { 473 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 474 unsigned int ipi6_ifindex; /* send/recv interface index */ 475 }; 476 477 /* IPv6 MTU information. */ 478 struct ip6_mtuinfo 479 { 480 struct sockaddr_in6 ip6m_addr; /* dst address including zone ID */ 481 uint32_t ip6m_mtu; /* path MTU in host byte order */ 482 }; 483 484 485 /* Obsolete hop-by-hop and Destination Options Processing (RFC 2292). */ 486 extern int inet6_option_space (int __nbytes) 487 __THROW __attribute_deprecated__; 488 extern int inet6_option_init (void *__bp, struct cmsghdr **__cmsgp, 489 int __type) __THROW __attribute_deprecated__; 490 extern int inet6_option_append (struct cmsghdr *__cmsg, 491 __const uint8_t *__typep, int __multx, 492 int __plusy) __THROW __attribute_deprecated__; 493 extern uint8_t *inet6_option_alloc (struct cmsghdr *__cmsg, int __datalen, 494 int __multx, int __plusy) 495 __THROW __attribute_deprecated__; 496 extern int inet6_option_next (__const struct cmsghdr *__cmsg, 497 uint8_t **__tptrp) 498 __THROW __attribute_deprecated__; 499 extern int inet6_option_find (__const struct cmsghdr *__cmsg, 500 uint8_t **__tptrp, int __type) 501 __THROW __attribute_deprecated__; 502 503 504 /* Hop-by-Hop and Destination Options Processing (RFC 3542). */ 505 extern int inet6_opt_init (void *__extbuf, socklen_t __extlen) __THROW; 506 extern int inet6_opt_append (void *__extbuf, socklen_t __extlen, int __offset, 507 uint8_t __type, socklen_t __len, uint8_t __align, 508 void **__databufp) __THROW; 509 extern int inet6_opt_finish (void *__extbuf, socklen_t __extlen, int __offset) 510 __THROW; 511 extern int inet6_opt_set_val (void *__databuf, int __offset, void *__val, 512 socklen_t __vallen) __THROW; 513 extern int inet6_opt_next (void *__extbuf, socklen_t __extlen, int __offset, 514 uint8_t *__typep, socklen_t *__lenp, 515 void **__databufp) __THROW; 516 extern int inet6_opt_find (void *__extbuf, socklen_t __extlen, int __offset, 517 uint8_t __type, socklen_t *__lenp, 518 void **__databufp) __THROW; 519 extern int inet6_opt_get_val (void *__databuf, int __offset, void *__val, 520 socklen_t __vallen) __THROW; 521 522 523 /* Routing Header Option (RFC 3542). */ 524 extern socklen_t inet6_rth_space (int __type, int __segments) __THROW; 525 extern void *inet6_rth_init (void *__bp, socklen_t __bp_len, int __type, 526 int __segments) __THROW; 527 extern int inet6_rth_add (void *__bp, __const struct in6_addr *__addr) __THROW; 528 extern int inet6_rth_reverse (__const void *__in, void *__out) __THROW; 529 extern int inet6_rth_segments (__const void *__bp) __THROW; 530 extern struct in6_addr *inet6_rth_getaddr (__const void *__bp, int __index) 531 __THROW; 532 533 534 /* Multicast source filter support. */ 535 536 /* Get IPv4 source filter. */ 537 extern int getipv4sourcefilter (int __s, struct in_addr __interface_addr, 538 struct in_addr __group, uint32_t *__fmode, 539 uint32_t *__numsrc, struct in_addr *__slist) 540 __THROW; 541 542 /* Set IPv4 source filter. */ 543 extern int setipv4sourcefilter (int __s, struct in_addr __interface_addr, 544 struct in_addr __group, uint32_t __fmode, 545 uint32_t __numsrc, 546 __const struct in_addr *__slist) 547 __THROW; 548 549 550 /* Get source filter. */ 551 extern int getsourcefilter (int __s, uint32_t __interface_addr, 552 __const struct sockaddr *__group, 553 socklen_t __grouplen, uint32_t *__fmode, 554 uint32_t *__numsrc, 555 struct sockaddr_storage *__slist) __THROW; 556 557 /* Set source filter. */ 558 extern int setsourcefilter (int __s, uint32_t __interface_addr, 559 __const struct sockaddr *__group, 560 socklen_t __grouplen, uint32_t __fmode, 561 uint32_t __numsrc, 562 __const struct sockaddr_storage *__slist) __THROW; 563 #endif /* use GNU */ 564 565 __END_DECLS 566 567 #endif /* netinet/in.h */ 568
