contrib/opie/libmissing/uname.c

   1 /* uname.c: A replacement for the uname function (sort of)
   2
   3 %%% copyright-cmetz
   4 This software is Copyright 1996 by Craig Metz, All Rights Reserved.
   5 The Inner Net License Version 2 applies to this software.
   6 You should have received a copy of the license with this software. If
   7 you didn't get a copy, you may request one from <license@inner.net>.
   8
   9         History:
  10
  11         Modified by cmetz for OPIE 2.3. Ifdef around gethostname().
  12         Created by cmetz for OPIE 2.2.
  13 */
  14 #include "opie_cfg.h"
  15 #if HAVE_SYS_PARAM_H
  16 #include <sys/param.h>
  17 #endif /* HAVE_SYS_PARAM_H */
  18 #include "opie.h"
  19
  20 int uname FUNCTION(struct utsname *buf)
  21 {
  22 #if HAVE_GETHOSTNAME
  23         char hostname[MAXHOSTNAMELEN], *c;
  24
  25         memset(buf, 0, sizeof(buf));
  26
  27         if (gethostname(hostname, sizeof(hostname)-1) < 0)
  28                 return -1;
  29
  30         hostname[sizeof(hostname) - 1] = 0;
  31
  32         if (c = strchr(hostname, '.')) {
  33                 *c = 0;
  34         }
  35
  36         strncpy(buf->nodename, hostname, sizeof(buf->nodename) - 1);
  37         return 0;
  38 #else /* HAVE_GETHOSTNAME */
  39         strncpy(buf->nodename, "unknown", sizeof(buf->nodename) - 1);
  40         return 0;
  41 #endif /* HAVE_GETHOSTNAME */
  42 }