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Annotation of 43BSDReno/include/netdb.h, revision 1.1.1.1

1.1       root        1: /*-
                      2:  * Copyright (c) 1980, 1983, 1988 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  *
                     19:  *     @(#)netdb.h     5.11 (Berkeley) 5/21/90
                     20:  */
                     21: 
                     22: #define        _PATH_HEQUIV    "/etc/hosts.equiv"
                     23: #define        _PATH_HOSTS     "/etc/hosts"
                     24: #define        _PATH_NETWORKS  "/etc/networks"
                     25: #define        _PATH_PROTOCOLS "/etc/protocols"
                     26: #define        _PATH_SERVICES  "/etc/services"
                     27: 
                     28: /*
                     29:  * Structures returned by network data base library.  All addresses are
                     30:  * supplied in host order, and returned in network order (suitable for
                     31:  * use in system calls).
                     32:  */
                     33: struct hostent {
                     34:        char    *h_name;        /* official name of host */
                     35:        char    **h_aliases;    /* alias list */
                     36:        int     h_addrtype;     /* host address type */
                     37:        int     h_length;       /* length of address */
                     38:        char    **h_addr_list;  /* list of addresses from name server */
                     39: #define        h_addr  h_addr_list[0]  /* address, for backward compatiblity */
                     40: };
                     41: 
                     42: /*
                     43:  * Assumption here is that a network number
                     44:  * fits in 32 bits -- probably a poor one.
                     45:  */
                     46: struct netent {
                     47:        char            *n_name;        /* official name of net */
                     48:        char            **n_aliases;    /* alias list */
                     49:        int             n_addrtype;     /* net address type */
                     50:        unsigned long   n_net;          /* network # */
                     51: };
                     52: 
                     53: struct servent {
                     54:        char    *s_name;        /* official service name */
                     55:        char    **s_aliases;    /* alias list */
                     56:        int     s_port;         /* port # */
                     57:        char    *s_proto;       /* protocol to use */
                     58: };
                     59: 
                     60: struct protoent {
                     61:        char    *p_name;        /* official protocol name */
                     62:        char    **p_aliases;    /* alias list */
                     63:        int     p_proto;        /* protocol # */
                     64: };
                     65: 
                     66: struct hostent *gethostbyname(), *gethostbyaddr(), *gethostent();
                     67: struct netent  *getnetbyname(), *getnetbyaddr(), *getnetent();
                     68: struct servent *getservbyname(), *getservbyport(), *getservent();
                     69: struct protoent        *getprotobyname(), *getprotobynumber(), *getprotoent();
                     70: 
                     71: /*
                     72:  * Error return codes from gethostbyname() and gethostbyaddr()
                     73:  * (left in extern int h_errno).
                     74:  */
                     75: 
                     76: #define        HOST_NOT_FOUND  1 /* Authoritative Answer Host not found */
                     77: #define        TRY_AGAIN       2 /* Non-Authoritive Host not found, or SERVERFAIL */
                     78: #define        NO_RECOVERY     3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
                     79: #define        NO_DATA         4 /* Valid name, no data record of requested type */
                     80: #define        NO_ADDRESS      NO_DATA         /* no address, look for MX record */

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