gethostname(3) (BSD Compatibility Package) gethostname(3)
NAME
gethostname, sethostname - get/set name of current host
SYNOPSIS
cc [ flag... ] file ... -lucb
int gethostname(name, namelen)
char *name;
int namelen;
int sethostname(name, namelen)
char *name;
int namelen;
DESCRIPTION
gethostname returns the standard host name for the current processor,
as previously set by sethostname. The parameter namelen specifies
the size of the array pointed to by name. The returned name is
null-terminated unless insufficient space is provided.
sethostname sets the name of the host machine to be name, which has
length namelen. This call is restricted to the privileged user and
is normally used only when the system is bootstrapped.
RETURN VALUE
If the call succeeds a value of 0 is returned. If the call fails,
then a value of -1 is returned and an error code is placed in the
global location errno.
ERRORS
The following error may be returned by these calls:
EFAULT The name or namelen parameter gave an invalid address.
EPERM The caller was not the privileged user. Note: this
error only applies to sethostname.
SEE ALSO
gethostid(3)
uname(2) in the Programmer's Reference Manual.
NOTES
Host names are limited to MAXHOSTNAMELEN characters, currently 256.
(See the param.h header file.)
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