src/port/gethostname.c


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/*-------------------------------------------------------------------------
 *
 * gethostname.c
 *	  gethostname using uname
 *
 * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * IDENTIFICATION
 *	  src/port/gethostname.c
 *
 *-------------------------------------------------------------------------
 */

#include "c.h"

#include <sys/utsname.h>

int
gethostname(char *name, int namelen)
{
	static struct utsname mname;
	static int	called = 0;

	if (!called)
	{
		called++;
		uname(&mname);
	}
	strncpy(name, mname.nodename, (SYS_NMLN < namelen ? SYS_NMLN : namelen));

	return 0;
}