GETHOSTNAME(3P)                                     POSIX Programmer's Manual                                    GETHOSTNAME(3P)



PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (con-
       sult the corresponding Linux manual page for details of Linux behavior), or the  interface  may  not  be  implemented  on
       Linux.

NAME
       gethostname - get name of current host

SYNOPSIS
       #include <unistd.h>

       int gethostname(char *name, size_t namelen);


DESCRIPTION
       The  gethostname() function shall return the standard host name for the current machine. The namelen argument shall spec-
       ify the size of the array pointed to by the name argument.  The returned name shall be null-terminated,  except  that  if
       namelen  is an insufficient length to hold the host name, then the returned name shall be truncated and it is unspecified
       whether the returned name is null-terminated.

       Host names are limited to {HOST_NAME_MAX} bytes.

RETURN VALUE
       Upon successful completion, 0 shall be returned; otherwise, -1 shall be returned.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       gethostid(), uname(), the Base Definitions volume of IEEE Std 1003.1-2001, <unistd.h>

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, Copy-
       right (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.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                               GETHOSTNAME(3P)