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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "ENDHOSTENT" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" endhostent 
+.SH PROLOG
+This manual page is part of the POSIX Programmer's Manual.
+The Linux implementation of this interface may differ (consult
+the corresponding Linux manual page for details of Linux behavior),
+or the interface may not be implemented on Linux.
+.SH NAME
+endhostent, gethostent, sethostent \- network host database functions
+.SH SYNOPSIS
+.LP
+\fB#include <netdb.h>
+.br
+.sp
+void endhostent(void);
+.br
+struct hostent *gethostent(void);
+.br
+void sethostent(int\fP \fIstayopen\fP\fB);
+.br
+\fP
+.SH DESCRIPTION
+.LP
+These functions shall retrieve information about hosts. This information
+is considered to be stored in a database that can be
+accessed sequentially or randomly. The implementation of this database
+is unspecified. 
+.TP 7
+\fBNote:\fP
+In many cases this database is implemented by the Domain Name System,
+as documented in RFC\ 1034, RFC\ 1035, and
+RFC\ 1886.
+.sp
+.LP
+The \fIsethostent\fP() function shall open a connection to the database
+and set the next entry for retrieval to the first entry
+in the database. If the \fIstayopen\fP argument is non-zero, the connection
+shall not be closed by a call to \fIgethostent\fP(),
+\fIgethostbyname\fP(), or \fIgethostbyaddr\fP(), and the implementation
+may maintain an open file descriptor.
+.LP
+The \fIgethostent\fP() function shall read the next entry in the database,
+opening and closing a connection to the database as
+necessary.
+.LP
+Entries shall be returned in \fBhostent\fP structures. Refer to \fIgethostbyaddr\fP()
+for a
+definition of the \fBhostent\fP structure.
+.LP
+The \fIendhostent\fP() function shall close the connection to the
+database, releasing any open file descriptor.
+.LP
+These functions need not be reentrant. A function that is not required
+to be reentrant is not required to be thread-safe.
+.SH RETURN VALUE
+.LP
+Upon successful completion, the \fIgethostent\fP() function shall
+return a pointer to a \fBhostent\fP structure if the
+requested entry was found, and a null pointer if the end of the database
+was reached or the requested entry was not found.
+.SH ERRORS
+.LP
+No errors are defined for \fIendhostent\fP(), \fIgethostent\fP(),
+and \fIsethostent\fP().
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+The \fIgethostent\fP() function may return pointers to static data,
+which may be overwritten by subsequent calls to any of
+these functions.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIendservent\fP(), \fIgethostbyaddr\fP(), the Base
+Definitions volume of IEEE\ Std\ 1003.1-2001, \fI<netdb.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group. In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .