Return to getnetent.3 CVS log

Up to [CSRG BSD Unix] / 43BSDTahoe / man / man3

Annotation of 43BSDTahoe/man/man3/getnetent.3, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)getnetent.3n        6.3 (Berkeley) 5/19/86
        !             6: .\"
        !             7: .TH GETNETENT 3N "May 19, 1986"
        !             8: .UC 5
        !             9: .SH NAME
        !            10: getnetent, getnetbyaddr, getnetbyname, setnetent, endnetent \- get network entry
        !            11: .SH SYNOPSIS
        !            12: .nf
        !            13: .ft B
        !            14: #include <netdb.h>
        !            15: .PP
        !            16: .ft B
        !            17: struct netent *getnetent()
        !            18: .PP
        !            19: .ft B
        !            20: struct netent *getnetbyname(name)
        !            21: char *name;
        !            22: .PP
        !            23: .ft B
        !            24: struct netent *getnetbyaddr(net, type)
        !            25: long net;
        !            26: int type;
        !            27: .PP
        !            28: .ft B
        !            29: setnetent(stayopen)
        !            30: int stayopen;
        !            31: .PP
        !            32: .ft B
        !            33: endnetent()
        !            34: .fi
        !            35: .SH DESCRIPTION
        !            36: .IR Getnetent ,
        !            37: .IR getnetbyname ,
        !            38: and
        !            39: .I getnetbyaddr
        !            40: each return a pointer to an object with the
        !            41: following structure
        !            42: containing the broken-out
        !            43: fields of a line in the network data base,
        !            44: .IR /etc/networks .
        !            45: .RS
        !            46: .PP
        !            47: .nf
        !            48: struct netent {
        !            49:        char            *n_name;        /* official name of net */
        !            50:        char            **n_aliases;    /* alias list */
        !            51:        int             n_addrtype;     /* net number type */
        !            52:        unsigned long   n_net;          /* net number */
        !            53: };
        !            54: .ft R
        !            55: .ad
        !            56: .fi
        !            57: .RE
        !            58: .PP
        !            59: The members of this structure are:
        !            60: .TP \w'n_addrtype'u+2n
        !            61: n_name
        !            62: The official name of the network.
        !            63: .TP \w'n_addrtype'u+2n
        !            64: n_aliases
        !            65: A zero terminated list of alternate names for the network.
        !            66: .TP \w'n_addrtype'u+2n
        !            67: n_addrtype
        !            68: The type of the network number returned; currently only AF_INET.
        !            69: .TP \w'n_addrtype'u+2n
        !            70: n_net
        !            71: The network number.  Network numbers are returned in machine byte
        !            72: order.
        !            73: .PP
        !            74: .I Getnetent
        !            75: reads the next line of the file, opening the file if necessary.
        !            76: .PP
        !            77: .I Setnetent
        !            78: opens and rewinds the file.  If the
        !            79: .I stayopen
        !            80: flag is non-zero,
        !            81: the net data base will not be closed after each call to 
        !            82: .I getnetbyname
        !            83: or
        !            84: .IR getnetbyaddr .
        !            85: .PP
        !            86: .I Endnetent
        !            87: closes the file.
        !            88: .PP
        !            89: .I Getnetbyname
        !            90: and
        !            91: .I getnetbyaddr
        !            92: sequentially search from the beginning
        !            93: of the file until a matching
        !            94: net name or
        !            95: net address and type is found,
        !            96: or until EOF is encountered.
        !            97: Network numbers are supplied in host order.
        !            98: .SH FILES
        !            99: /etc/networks
        !           100: .SH "SEE ALSO"
        !           101: networks(5)
        !           102: .SH DIAGNOSTICS
        !           103: Null pointer
        !           104: (0) returned on EOF or error.
        !           105: .SH BUGS
        !           106: All information
        !           107: is contained in a static area
        !           108: so it must be copied if it is
        !           109: to be saved.  Only Internet network
        !           110: numbers are currently understood.
        !           111: Expecting network numbers to fit
        !           112: in no more than 32 bits is probably
        !           113: naive.

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.