gethostname.c

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/*-------------------------------------------------------------------------
 *
 * gethostname.c
 *    gethostname using uname
 *
 * Portions Copyright (c) 1996-2013, 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;
}