--- /dev/null
+// $Id$ --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//
+// 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 "wrappers.h"
+#include "util.h"
+
+#include <getopt.h>
+#include <stdlib.h>
+
+int wrapper_exit_code = 1;
+
+
+#define VROOT_SET_DEV 0x5600
+#define VROOT_CLR_DEV 0x5601
+#define VROOT_INC_USE 0x56FE
+#define VROOT_DEC_USE 0x56FF
+
+struct option const
+CMDLINE_OPTIONS[] = {
+ { "help", no_argument, 0, 'h' },
+ { "version", no_argument, 0, 'v' },
+ { 0,0,0,0 }
+};
+
+static void
+showHelp(int fd, char const *cmd, int res)
+{
+ WRITE_MSG(fd, "Usage: ");
+ WRITE_STR(fd, cmd);
+ WRITE_MSG(fd,
+ " [-dID] <rootdev>\n"
+ " or ");
+ WRITE_STR(fd, cmd);
+ WRITE_MSG(fd,
+ " <rootdev> <real-rootdev>\n\n"
+ "Please report bugs to " PACKAGE_BUGREPORT "\n");
+ exit(res);
+}
+
+static void
+showVersion()
+{
+ WRITE_MSG(1,
+ "vrsetup " VERSION " -- set up and control vroot devices\n"
+ "This program is part of " PACKAGE_STRING "\n\n"
+ "Copyright (C) 2003 Enrico Scholz\n"
+ VERSION_COPYRIGHT_DISCLAIMER);
+ exit(0);
+}
+
+
+int main(int argc, char *argv[])
+{
+ bool do_delete = false;
+ bool do_decrement = false;
+ bool do_increment = false;
+ bool do_setup = false;
+ char const * root_device = 0;
+ char const * real_root_device = 0;
+ int fd;
+
+ while (1) {
+ int c = getopt_long(argc, argv, "dID", CMDLINE_OPTIONS, 0);
+ if (c==-1) break;
+
+ switch (c) {
+ case 'h' : showHelp(1, argv[0], 0);
+ case 'v' : showVersion();
+ case 'd' : do_delete = true; break;
+ case 'D' : do_decrement = true; break;
+ case 'I' : do_increment = true; break;
+ default :
+ WRITE_MSG(2, "Try '");
+ WRITE_STR(2, argv[0]);
+ WRITE_MSG(2, " --help\" for more information.\n");
+ return EXIT_FAILURE;
+ break;
+ }
+ }
+
+ do_setup = !(do_delete || do_decrement || do_increment);
+
+ if (optind+1>argc) {
+ WRITE_MSG(2, "No vroot-device given\n");
+ return EXIT_FAILURE;
+ }
+
+ if (do_setup && optind+2>argc) {
+ WRITE_MSG(2, "No real root-device given\n");
+ return EXIT_FAILURE;
+ }
+
+ root_device = argv[optind];
+ if (do_setup) real_root_device = argv[optind+1];
+
+ fd = Eopen(root_device, O_RDONLY, 0);
+ if (do_increment) Eioctl(fd, VROOT_INC_USE, 0);
+ else if (do_decrement) Eioctl(fd, VROOT_DEC_USE, 0);
+ else if (do_delete) Eioctl(fd, VROOT_CLR_DEV, 0);
+ else {
+ int dfd = Eopen(real_root_device, O_RDONLY, 0);
+ Eioctl(fd, VROOT_SET_DEV, (void*)dfd);
+ Eclose(dfd);
+ }
+
+ Eclose(fd);
+ return EXIT_SUCCESS;
+}