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<!-- Copyright (C) 2003 Red Hat, Inc. --> <!-- This material may be distributed only subject to the terms --> <!-- and conditions set forth in the Open Publication License, v1.0 --> <!-- or later (the latest version is presently available at --> <!-- http://www.opencontent.org/openpub/). --> <!-- Distribution of the work or derivative of the work in any --> <!-- standard (paper) book form is prohibited unless prior --> <!-- permission is obtained from the copyright holder. --> <HTML ><HEAD ><TITLE >TCP/IP Library Reference</TITLE ><meta name="MSSmartTagsPreventParsing" content="TRUE"> <META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="eCos Reference Manual" HREF="ecos-ref.html"><LINK REL="UP" TITLE="TCP/IP Stack Support for eCos" HREF="net-common-tcpip.html"><LINK REL="PREVIOUS" TITLE="DHCP" HREF="net-common-dhcp.html"><LINK REL="NEXT" TITLE="gethostname" HREF="net-common-tcpip-manpages-gethostname.html"></HEAD ><BODY CLASS="CHAPTER" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >eCos Reference Manual</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="net-common-dhcp.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="net-common-tcpip-manpages-gethostname.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="CHAPTER" ><H1 ><A NAME="TCPIP-LIBRARY-REFERENCE">Chapter 38. TCP/IP Library Reference</H1 ><DIV CLASS="TOC" ><DL ><DT ><B >Table of Contents</B ></DT ><DT ><A HREF="tcpip-library-reference.html#NET-COMMON-TCPIP-MANPAGES-GETDOMAINNAME" >getdomainname</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-gethostname.html" >gethostname</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-byteorder.html" >byteorder</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-ethers.html" >ethers</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-getaddrinfo.html" >getaddrinfo</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-gethostbyname.html" >gethostbyname</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-getifaddrs.html" >getifaddrs</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-getnameinfo.html" >getnameinfo</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-getnetent.html" >getnetent</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-getprotoent.html" >getprotoent</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-getrrsetbyname.html" >getrrsetbyname</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-getservent.html" >getservent</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-if-nametoindex.html" >if_nametoindex</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-inet.html" >inet</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-inet6-option-space.html" >inet6_option_space</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-inet6-rthdr-space.html" >inet6_rthdr_space</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-inet-net.html" >inet_net</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-ipx.html" >ipx</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-iso-addr.html" >iso_addr</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-link-addr.html" >link_addr</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-net-addrcmp.html" >net_addrcmp</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-ns.html" >ns</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-resolver.html" >resolver</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-accept.html" >accept</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-bind.html" >bind</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-connect.html" >connect</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-getpeername.html" >getpeername</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-getsockname.html" >getsockname</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-getsockopt.html" >getsockopt</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-ioctl.html" >ioctl</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-poll.html" >poll</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-select.html" >select</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-send.html" >send</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-shutdown.html" >shutdown</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-socket.html" >socket</A ></DT ><DT ><A HREF="net-common-tcpip-manpages-socketpair.html" >socketpair</A ></DT ></DL ></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="NET-COMMON-TCPIP-MANPAGES-GETDOMAINNAME">getdomainname</H1 ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="SCREEN" >GETDOMAINNAME(3) System Library Functions Manual GETDOMAINNAME(3) NAME getdomainname, setdomainname - get/set YP domain name of current host SYNOPSIS #include <unistd.h> int getdomainname(char *name, size_t namelen); int setdomainname(const char *name, size_t namelen); DESCRIPTION The getdomainname() function returns the YP domain name for the current processor, as previously set by setdomainname(). The parameter namelen specifies the size of the name array. If insufficient space is provided, the returned name is truncated. The returned name is always null termi- nated. setdomainname() sets the domain name of the host machine to be name, which has length namelen. This call is restricted to the superuser and is normally used only when the system is bootstrapped. RETURN VALUES If the call succeeds a value of 0 is returned. If the call fails, a value of -1 is returned and an error code is placed in the global vari- able errno. ERRORS The following errors may be returned by these calls: [EFAULT] The name or namelen parameter gave an invalid address. [EPERM] The caller tried to set the domain name and was not the superuser. SEE ALSO domainname(1), gethostid(3), gethostname(3), sysctl(3), sysctl(8), yp(8) BUGS Domain names are limited to MAXHOSTNAMELEN (from <sys/param.h>) charac- ters, currently 256. This includes the terminating NUL character. If the buffer passed to getdomainname() is too small, other operating systems may not guarantee termination with NUL. HISTORY The getdomainname function call appeared in SunOS 3.x. BSD May 6, 1994 BSD </PRE ></TD ></TR ></TABLE ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="net-common-dhcp.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ecos-ref.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="net-common-tcpip-manpages-gethostname.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >DHCP</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="net-common-tcpip.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >gethostname</TD ></TR ></TABLE ></DIV ></BODY ></HTML >
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