sysdeps/unix/bsd/bsd4.4/kfreebsd/utmp-compat/getutxline.c

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Bruno Haible <bruno@clisp.org>, 2002.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <utmpx.h>
  21 #include <stddef.h>
  22 #include <string.h>
  23
  24 extern struct utmpx *__getutxent (void);
  25
  26 struct utmpx *
  27 getutxline (const struct utmpx *line)
  28 {
  29   for (;;)
  30     {
  31       struct utmpx *next = __getutxent ();
  32
  33       if (next == NULL)
  34         return NULL;
  35
  36       if ((next->ut_type == LOGIN_PROCESS || next->ut_type == USER_PROCESS)
  37           && strncmp (next->ut_line, line->ut_line, __UT_LINESIZE) == 0)
  38         return next;
  39     }
  40 }