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Annotation of 43BSDTahoe/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 the above copyright notice and this paragraph are
                      7:  * duplicated in all such forms and that any documentation,
                      8:  * advertising materials, and other materials related to such
                      9:  * distribution and use acknowledge that the software was developed
                     10:  * by the University of California, Berkeley.  The name of the
                     11:  * University may not be used to endorse or promote products derived
                     12:  * from this software without specific prior written permission.
                     13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     16:  *
                     17:  *     @(#)netdb.h     5.10 (Berkeley) 6/27/88
                     18:  */
                     19: 
                     20: /*
                     21:  * Structures returned by network
                     22:  * data base library.  All addresses
                     23:  * are supplied in host order, and
                     24:  * returned in network order (suitable
                     25:  * for use in system calls).
                     26:  */
                     27: struct hostent {
                     28:        char    *h_name;        /* official name of host */
                     29:        char    **h_aliases;    /* alias list */
                     30:        int     h_addrtype;     /* host address type */
                     31:        int     h_length;       /* length of address */
                     32:        char    **h_addr_list;  /* list of addresses from name server */
                     33: #define        h_addr  h_addr_list[0]  /* address, for backward compatiblity */
                     34: };
                     35: 
                     36: /*
                     37:  * Assumption here is that a network number
                     38:  * fits in 32 bits -- probably a poor one.
                     39:  */
                     40: struct netent {
                     41:        char            *n_name;        /* official name of net */
                     42:        char            **n_aliases;    /* alias list */
                     43:        int             n_addrtype;     /* net address type */
                     44:        unsigned long   n_net;          /* network # */
                     45: };
                     46: 
                     47: struct servent {
                     48:        char    *s_name;        /* official service name */
                     49:        char    **s_aliases;    /* alias list */
                     50:        int     s_port;         /* port # */
                     51:        char    *s_proto;       /* protocol to use */
                     52: };
                     53: 
                     54: struct protoent {
                     55:        char    *p_name;        /* official protocol name */
                     56:        char    **p_aliases;    /* alias list */
                     57:        int     p_proto;        /* protocol # */
                     58: };
                     59: 
                     60: struct hostent *gethostbyname(), *gethostbyaddr(), *gethostent();
                     61: struct netent  *getnetbyname(), *getnetbyaddr(), *getnetent();
                     62: struct servent *getservbyname(), *getservbyport(), *getservent();
                     63: struct protoent        *getprotobyname(), *getprotobynumber(), *getprotoent();
                     64: 
                     65: /*
                     66:  * Error return codes from gethostbyname() and gethostbyaddr()
                     67:  * (left in extern int h_errno).
                     68:  */
                     69: 
                     70: #define        HOST_NOT_FOUND  1 /* Authoritative Answer Host not found */
                     71: #define        TRY_AGAIN       2 /* Non-Authoritive Host not found, or SERVERFAIL */
                     72: #define        NO_RECOVERY     3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
                     73: #define        NO_DATA         4 /* Valid name, no data record of requested type */
                     74: #define        NO_ADDRESS      NO_DATA         /* no address, look for MX record */

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