sync to 0.30.213

[util-vserver.git] / src / vdevmap.c

diff --git a/src/vdevmap.c b/src/vdevmap.c
new file mode 100644 (file)
index 0000000..5b70b51
--- /dev/null
+++ b/src/vdevmap.c
@@ -0,0 +1,136 @@
+// $Id: vdevmap.c 2490 2007-02-05 20:45:25Z dhozac $    --*- c -*--
+
+// Copyright (C) 2006 Daniel Hokka Zakrisson
+//  
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//  
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//  
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "util.h"
+#include <lib/internal.h>
+
+#include <vserver.h>
+
+#include <getopt.h>
+#include <errno.h>
+
+#define ENSC_WRAPPERS_PREFIX   "vdevmap: "
+#define ENSC_WRAPPERS_UNISTD   1
+#define ENSC_WRAPPERS_VSERVER  1
+#include <wrappers.h>
+
+#define CMD_HELP               0x1000
+#define CMD_VERSION            0x1001
+
+int            wrapper_exit_code  =  1;
+
+struct option const
+CMDLINE_OPTIONS[] = {
+  { "help",       no_argument,       0, CMD_HELP },
+  { "version",    no_argument,       0, CMD_VERSION },
+  { "xid",        required_argument, 0, 'x' },
+  { "open",       no_argument,       0, 'o' },
+  { "create",     no_argument,       0, 'c' },
+  { "remap",      no_argument,       0, 'r' },
+  { "flags",      required_argument, 0, 'f' },
+  { "device",     required_argument, 0, 'd' },
+  { "target",     required_argument, 0, 't' },
+  {0,0,0,0}
+};
+
+static void
+showHelp(int fd, char const *cmd)
+{
+  WRITE_MSG(fd, "Usage: ");
+  WRITE_STR(fd, cmd);
+  WRITE_MSG(fd,
+           " --xid <xid> [--flags <flags>] [--open] [--create] [--remap] [--device <dev>] [--target <dev>]\n"
+           "\n"
+           "Please report bugs to " PACKAGE_BUGREPORT "\n");
+
+  exit(0);
+}
+
+static void
+showVersion()
+{
+  WRITE_MSG(1,
+           "vdevmap " VERSION " -- manages device mappings\n"
+           "This program is part of " PACKAGE_STRING "\n\n"
+           "Copyright (C) 2006 Daniel Hokka Zakrisson\n"
+           VERSION_COPYRIGHT_DISCLAIMER);
+  exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+  xid_t                xid             = VC_NOCTX;
+  bool         allow_open      = false;
+  bool         allow_create    = false;
+  bool         do_remap        = false;
+  uint32_t     flags           = 0;
+  char         *device         = NULL;
+  char         *target         = NULL;
+  unsigned long        tmp             = 0;
+  
+  while (1) {
+    int                c = getopt_long(argc, argv, "+x:ocrf:d:t:", CMDLINE_OPTIONS, 0);
+    if (c==-1) break;
+
+    switch (c) {
+      case CMD_HELP    :  showHelp(1, argv[0]);
+      case CMD_VERSION :  showVersion();
+      case 'x'         :  xid = Evc_xidopt2xid(optarg, true);  break;
+      case 'o'         :  allow_open = true;                   break;
+      case 'c'         :  allow_create = true;                 break;
+      case 'r'         :  do_remap = true;                     break;
+      case 'd'         :  device = optarg;                     break;
+      case 't'         :  target = optarg;                     break;
+      case 'f'         :
+       if (!isNumberUnsigned(optarg, &tmp, false)) {
+         WRITE_MSG(2, "Invalid flags argument: '");
+         WRITE_STR(2, optarg);
+         WRITE_MSG(2, "'; try '--help' for more information\n");
+         return EXIT_FAILURE;
+       }
+       flags |= (uint32_t) tmp;
+       break;
+
+      default          :
+       WRITE_MSG(2, "Try '");
+       WRITE_STR(2, argv[0]);
+       WRITE_MSG(2, " --help' for more information.\n");
+       return EXIT_FAILURE;
+       break;
+    }
+  }
+
+  if (allow_open)      flags |= VC_DATTR_OPEN;
+  if (allow_create)    flags |= VC_DATTR_CREATE;
+  if (do_remap)                flags |= VC_DATTR_REMAP;
+
+  if (xid==VC_NOCTX)
+    WRITE_MSG(2, "No xid specified; try '--help' for more information\n");
+  else if (optind!=argc)
+    WRITE_MSG(2, "Unused argument(s); try '--help' for more information\n");
+  else if (vc_set_mapping(xid, device, target, flags)==-1)
+      perror("vc_set_mapping()");
+  else
+    return EXIT_SUCCESS;
+
+  return EXIT_FAILURE;
+}