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GETHOSTNAME(3)         FreeBSD Library Functions Manual         GETHOSTNAME(3)

NAME
     gethostname, sethostname -- get/set name of current host

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <unistd.h>

     int
     gethostname(char *name, int namelen);

     int
     sethostname(const char *name, int namelen);

DESCRIPTION
     The gethostname() function returns the standard host name for the current
     processor, as previously set by sethostname().  The namelen argument
     specifies the size of the name array.  The returned name is null-termi-
     nated unless insufficient space is provided.

     The sethostname() function sets the name of the host machine to be name,
     which has length namelen.  This call is restricted to the super-user and
     is normally used only when the system is bootstrapped.

RETURN VALUES
     Upon successful completion, the value 0 is returned; otherwise the
     value -1 is returned and the global variable errno is set to indicate the
     error.

ERRORS
     The following errors may be returned by these calls:

     [EFAULT]           The name or namelen argument gave an invalid address.

     [EPERM]            The caller tried to set the hostname and was not the
                        super-user.

SEE ALSO
     gethostid(3), sysctl(3)

BUGS
     Host names are limited to MAXHOSTNAMELEN (from <sys/param.h>) characters,
     currently 256.  This includes the trailing NUL.

HISTORY
     The gethostname() function appeared in 4.2BSD.

FreeBSD 4.10                     June 4, 1993                     FreeBSD 4.10

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | BUGS | HISTORY

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