src/ipc/ipcrm.c

   1 /* $Id$ */
   2
   3 /*
   4  *   ipcrm
   5  *
   6  *   Copyright (C) 1997 Philippe CHAPUY
   7  *   Copyright (C) 1998 Ludovic LANGE
   8  *
   9  *   This program is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License as published by
  11  *   the Free Software Foundation; either version 2 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program; if not, write to the Free Software
  21  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  */
  23
  24 /*
  25  *   HISTORY:
  26  *   --------
  27  *
  28  *   13/05/1998 : Version 1.00 released
  29  *                First public release
  30  *                adress any comments to llange@capgemini.fr
  31  *   2003/06/13 : (C. Wilson) Ported to the cygutils package from
  32  *                the cygipc package.
  33  *
  34  */
  35
  36 /************************************************************************/
  37 /* Philippe Chapuy, le 19/05/97                                         */
  38 /************************************************************************/
  39
  40 #if HAVE_CONFIG_H
  41 # include "config.h"
  42 #endif
  43
  44 #include "common.h"
  45
  46 #if HAVE_SYS_IPC_H
  47 # include <sys/ipc.h>
  48 # if HAVE_SYS_SEM_H
  49 #  include <sys/sem.h>
  50 # endif
  51 # if HAVE_SYS_SHM_H
  52 #  include <sys/shm.h>
  53 # endif
  54 # if HAVE_SYS_MSG_H
  55 #  include <sys/msg.h>
  56 # endif
  57 #endif
  58
  59 /* These includes moved to common.h
  60 #include <unistd.h>
  61 #include <stdlib.h>
  62 #include <stdio.h>
  63 */
  64
  65 /* arg for semctl system calls. */
  66 union semun {
  67   int val;                      /* value for SETVAL */
  68   struct semid_ds *buf;         /* buffer for IPC_STAT & IPC_SET */
  69   ushort *array;                /* array for GETALL & SETALL */
  70   struct seminfo *__buf;        /* buffer for IPC_INFO */
  71   void *__pad;
  72 };
  73
  74 int main(int argc, char **argv)
  75 {
  76         int id;
  77         union semun arg;
  78         int LBoucle ;
  79
  80         arg.val = 0;
  81
  82         if (argc < 3 || strlen(argv[1]) < 3) {
  83                 printf ("usage: %s [shm | msg | sem] id1 ... idn\n", argv[0]);
  84                 exit (1);
  85         }
  86         id = atoi (argv[2]);
  87         switch (argv[1][1])  {
  88         case 'h':
  89                 for (LBoucle = 2; LBoucle < argc; LBoucle++)
  90                 {
  91                  id = atoi (argv[LBoucle]) ;
  92                  if (!shmctl (id, IPC_RMID, NULL))
  93                  continue ;
  94                  perror ("shmctl ");
  95                 }
  96                 exit (1);
  97
  98         case 'e':
  99                 for (LBoucle = 2; LBoucle < argc; LBoucle++)
 100                 {
 101                  id = atoi (argv[LBoucle]) ;
 102                  if (!semctl (id, 0, IPC_RMID, arg))
 103                  continue ;
 104                  perror ("semctl ");
 105                 }
 106                 exit (1);
 107
 108         case 's':
 109                 for (LBoucle = 2; LBoucle < argc; LBoucle++)
 110                 {
 111                  id = atoi (argv[LBoucle]) ;
 112                  if (!msgctl (id, IPC_RMID, NULL))
 113                  continue ;
 114                  perror ("msgctl ");
 115                 }
 116                 exit (1);
 117
 118         default:
 119                 printf ("usage: %s [-shm | -msg | -sem] id\n", argv[0]);
 120                 exit (1);
 121         }
 122         sleep(2) ;
 123         printf ("resource deleted\n");
 124         return 0;
 125 }
 126