netdb.h 8.1 KB

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  1. /*-
  2. * Copyright (c) 1980, 1983, 1988, 1993
  3. * The Regents of the University of California. All rights reserved.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions
  7. * are met:
  8. * 1. Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. * 2. Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in the
  12. * documentation and/or other materials provided with the distribution.
  13. * 3. All advertising materials mentioning features or use of this software
  14. * must display the following acknowledgement:
  15. * This product includes software developed by the University of
  16. * California, Berkeley and its contributors.
  17. * 4. Neither the name of the University nor the names of its contributors
  18. * may be used to endorse or promote products derived from this software
  19. * without specific prior written permission.
  20. *
  21. * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24. * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31. * SUCH DAMAGE.
  32. *
  33. * @(#)netdb.h 8.1 (Berkeley) 6/2/93
  34. * netdb.h,v 1.4 1995/08/14 04:05:04 hjl Exp
  35. * -
  36. * Portions Copyright (c) 1993 by Digital Equipment Corporation.
  37. *
  38. * Permission to use, copy, modify and distribute this software for any
  39. * purpose with or without fee is hereby granted, provided that the above
  40. * copyright notice and this permission notice appear in all copies, and that
  41. * the name of Digital Equipment Corporation not be used in advertising or
  42. * publicity pertaining to distribution of the document or software without
  43. * specific, written prior permission.
  44. *
  45. * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
  46. * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
  47. * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
  48. * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
  49. * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
  50. * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
  51. * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  52. * SOFTWARE.
  53. * -
  54. * --Copyright--
  55. */
  56. #ifndef _NETDB_H_
  57. #define _NETDB_H_
  58. #if defined(_POSIX_THREAD_SAFE_FUNCTIONS) || defined(_REENTRANT)
  59. #include <stdio.h>
  60. #include <netinet/in.h>
  61. #endif
  62. #include <paths.h>
  63. #define __PATH_ETC_INET "/etc"
  64. #define _PATH_HEQUIV __PATH_ETC_INET"/hosts.equiv"
  65. #define _PATH_HOSTS __PATH_ETC_INET"/hosts"
  66. #define _PATH_NETWORKS __PATH_ETC_INET"/networks"
  67. #define _PATH_PROTOCOLS __PATH_ETC_INET"/protocols"
  68. #define _PATH_SERVICES __PATH_ETC_INET"/services"
  69. #define _PATH_RESCONF __PATH_ETC_INET"/resolv.conf"
  70. #define _PATH_RPC __PATH_ETC_INET"/rpc"
  71. /*
  72. * Structures returned by network data base library. All addresses are
  73. * supplied in host order, and returned in network order (suitable for
  74. * use in system calls).
  75. */
  76. struct hostent {
  77. char *h_name; /* official name of host */
  78. char **h_aliases; /* alias list */
  79. int h_addrtype; /* host address type */
  80. int h_length; /* length of address */
  81. char **h_addr_list; /* list of addresses from name server */
  82. #define h_addr h_addr_list[0] /* address, for backward compatiblity */
  83. };
  84. /*
  85. * Assumption here is that a network number
  86. * fits in an unsigned long -- probably a poor one.
  87. */
  88. struct netent {
  89. char *n_name; /* official name of net */
  90. char **n_aliases; /* alias list */
  91. int n_addrtype; /* net address type */
  92. unsigned long n_net; /* network # */
  93. };
  94. struct servent {
  95. char *s_name; /* official service name */
  96. char **s_aliases; /* alias list */
  97. int s_port; /* port # */
  98. char *s_proto; /* protocol to use */
  99. };
  100. struct protoent {
  101. char *p_name; /* official protocol name */
  102. char **p_aliases; /* alias list */
  103. int p_proto; /* protocol # */
  104. };
  105. struct rpcent {
  106. char *r_name; /* name of server for this rpc program */
  107. char **r_aliases; /* alias list */
  108. int r_number; /* rpc program number */
  109. };
  110. #if defined(_POSIX_THREAD_SAFE_FUNCTIONS) || defined(_REENTRANT)
  111. #define __NETDB_MAXALIASES 35
  112. #define __NETDB_MAXADDRS 35
  113. /*
  114. * Error return codes from gethostbyname() and gethostbyaddr()
  115. * (left in extern int h_errno).
  116. */
  117. #define h_errno (*__h_errno_location ())
  118. #else
  119. extern int h_errno;
  120. #endif
  121. #define NETDB_INTERNAL -1 /* see errno */
  122. #define NETDB_SUCCESS 0 /* no problem */
  123. #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */
  124. #define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */
  125. #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
  126. #define NO_DATA 4 /* Valid name, no data record of requested type */
  127. #define NO_ADDRESS NO_DATA /* no address, look for MX record */
  128. #include <features.h>
  129. __BEGIN_DECLS
  130. void endhostent __P((void));
  131. void endnetent __P((void));
  132. void endprotoent __P((void));
  133. void endservent __P((void));
  134. void endrpcent __P ((void));
  135. struct hostent *gethostbyaddr __P((__const char *, int, int));
  136. struct hostent *gethostbyname __P((__const char *));
  137. struct hostent *gethostent __P((void));
  138. struct netent *getnetbyaddr __P((long, int)); /* u_long? */
  139. struct netent *getnetbyname __P((__const char *));
  140. struct netent *getnetent __P((void));
  141. struct protoent *getprotobyname __P((__const char *));
  142. struct protoent *getprotobynumber __P((int));
  143. struct protoent *getprotoent __P((void));
  144. struct servent *getservbyname __P((__const char *, __const char *));
  145. struct servent *getservbyport __P((int, __const char *));
  146. struct servent *getservent __P((void));
  147. struct rpcent *getrpcent __P((void));
  148. struct rpcent *getrpcbyname __P((__const char *));
  149. struct rpcent *getrpcbynumber __P((int));
  150. void herror __P((__const char *));
  151. void sethostent __P((int));
  152. /* void sethostfile __P((__const char *)); */
  153. void setnetent __P((int));
  154. void setprotoent __P((int));
  155. void setservent __P((int));
  156. void setrpcent __P((int));
  157. #if defined(_POSIX_THREAD_SAFE_FUNCTIONS) || defined(_REENTRANT)
  158. struct hostent *gethostbyaddr_r __P((const char *__addr,
  159. int __length, int __type,
  160. struct hostent *__result,
  161. char *__buffer, int __buflen, int *__h_errnop));
  162. struct hostent *gethostbyname_r __P((const char * __name,
  163. struct hostent *__result, char *__buffer,
  164. int __buflen, int *__h_errnop));
  165. struct hostent *gethostent_r __P((struct hostent *__result,
  166. char *__buffer, int __buflen, int *__h_errnop));
  167. struct netent *getnetbyaddr_r __P((long __net, int __type,
  168. struct netent *__result, char *__buffer,
  169. int __buflen));
  170. struct netent *getnetbyname_r __P((const char * __name,
  171. struct netent *__result, char *__buffer,
  172. int __buflen));
  173. struct netent *getnetent_r __P((struct netent *__result,
  174. char *__buffer, int __buflen));
  175. struct protoent *getprotobyname_r __P((const char * __name,
  176. struct protoent *__result, char *__buffer,
  177. int __buflen));
  178. struct protoent *getprotobynumber_r __P((int __proto,
  179. struct protoent *__result, char *__buffer,
  180. int __buflen));
  181. struct protoent *getprotoent_r __P((struct protoent *__result,
  182. char *__buffer, int __buflen));
  183. struct servent *getservbyname_r __P((const char * __name,
  184. const char *__proto, struct servent *__result,
  185. char *__buffer, int __buflen));
  186. struct servent *getservbyport_r __P((int __port,
  187. const char *__proto, struct servent *__result,
  188. char *__buffer, int __buflen));
  189. struct servent *getservent_r __P((struct servent *__result,
  190. char *__buffer, int __buflen));
  191. int *__h_errno_location __P((void));
  192. #endif
  193. __END_DECLS
  194. #endif /* !_NETDB_H_ */