compat/gethostname.c

   1 /* gethostname.c: minimal substitute for missing gethostname() function
   2  * created 2000-Mar-02 jmk
   3  * requires SVR4 uname() and -lc
   4  *
   5  * by Jim Knoble <jmknoble@pobox.com>
   6  * Copyright ? 2000 Jim Knoble
   7  *
   8  * Permission to use, copy, modify, distribute, and sell this software
   9  * and its documentation for any purpose is hereby granted without fee,
  10  * provided that the above copyright notice appear in all copies and
  11  * that both that copyright notice and this permission notice appear in
  12  * supporting documentation.
  13  *
  14  * This software is provided "as is", without warranty of any kind,
  15  * express or implied, including but not limited to the warranties of
  16  * merchantability, fitness for a particular purpose and
  17  * noninfringement. In no event shall the author(s) be liable for any
  18  * claim, damages or other liability, whether in an action of contract,
  19  * tort or otherwise, arising from, out of or in connection with the
  20  * software or the use or other dealings in the software.
  21  */
  22
  23 #include <string.h>
  24 #include <sys/utsname.h>
  25
  26 int gethostname(char *name, size_t len)
  27 {
  28    struct utsname u;
  29    int status = uname(&u);
  30    if (-1 != status) {
  31       strncpy(name, u.nodename, len);
  32       name[len - 1] = '\0';
  33    }
  34    return(status);
  35 }
  36