source: trunk/libs/newlib/src/newlib/libc/sys/linux/gethostname.c

/* Copyright 2002, Red Hat Inc. */

#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <sys/utsname.h>
#include <machine/weakalias.h>

int
__gethostname (char *name, size_t len)
{
        struct utsname nodebuf;
        size_t nodelen;

        if (uname (&nodebuf))
                return -1;

        nodelen = strlen (nodebuf.nodename) + 1;
        if (len < nodelen)
                memcpy (name, nodebuf.nodename, len);
        else
                memcpy (name, nodebuf.nodename, nodelen);

        if (nodelen > len)
        {
                errno = ENAMETOOLONG;
                return -1;
        }
        return 0;
}
weak_alias(__gethostname, gethostname)