gethostname(3xnet) [opensolaris man page]

gethostname(3XNET)				   X/Open Networking Services Library Functions 				gethostname(3XNET)

NAME

       gethostname - get name of current host

SYNOPSIS

       cc [ flag ... ] file ... -lxnet [ library ... ]
       #include <unistd.h>

       int gethostname(char *name, size_t namelen);

DESCRIPTION

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

       Host names are limited to 255 bytes.

RETURN VALUES

       On successful completion, 0 is returned.  Otherwise, -1 is returned.

ERRORS

       No errors are defined.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       uname(1), gethostid(3C), attributes(5), standards(5)

SunOS 5.11							    10 Jun 2002 						gethostname(3XNET)

gethostname(3C) 					   Standard C Library Functions 					   gethostname(3C)

NAME

       gethostname, sethostname - get or set name of current host

SYNOPSIS

       #include <unistd.h>

       int gethostname(char *name, int namelen);

       int sethostname(char *name, int namelen);

DESCRIPTION

       The gethostname() function returns the standard host name for the current processor, as previously set by sethostname(). The  namelen argu-
       ment specifies the size of the array pointed to by name. The returned name is null-terminated 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 superuser
       and is normally used only when the system is bootstrapped.

       Host names are limited to MAXHOSTNAMELEN characters, currently 256, defined in the <netdb.h> header.

RETURN VALUES

       Upon successful completion, gethostname() and sethostname() return 0. Otherwise, they return -1 and set errno to indicate the error.

ERRORS

       The gethostname() and sethostname() functions will fail if:

       EFAULT	The name or namelen argument gave an invalid address.

       The sethostname() function will fail if:

       EPERM	The {PRIV_SYS_ADMIN} privilege was not asserted in the effective set of the calling process.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       sysinfo(2), uname(2), gethostid(3C), attributes(5), standards(5)

SunOS 5.10							    22 Mar 2004 						   gethostname(3C)