DdengxuyueMisc bugfixes
3d79c591创建于 2021年3月6日历史提交
/* -------------------------------------------------------------------------
 *
 * gethostname.cpp
 *	  gethostname using uname
 *
 * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * IDENTIFICATION
 *	  src/common/port/gethostname.cpp
 *
 * -------------------------------------------------------------------------
 */

#include "c.h"

#include <sys/utsname.h>

int gethostname(char* name, int namelen)
{
    static struct utsname mname;
    static int called = 0;
    errno_t ss_rc = 0;
    if (!called) {
        called++;
        uname(&mname);
    }
    ss_rc = strncpy_s(name, namelen, mname.nodename, ((SYS_NMLN < namelen) ? SYS_NMLN : namelen));
    securec_check_c(ss_rc, "\0", "\0");
    return 0;
}