From e07257c76e04258570c763d086dc835adf6ea8ae Mon Sep 17 00:00:00 2001 From: Enrico Scholz Date: Thu, 22 Jan 2004 14:22:43 +0000 Subject: [PATCH] initial checkin git-svn-id: http://svn.linux-vserver.org/svn/util-vserver/trunk@692 94cd875c-1c1d-0410-91d2-eb244daf1a30 --- util-vserver/src/vrsetup.c | 127 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) create mode 100644 util-vserver/src/vrsetup.c diff --git a/util-vserver/src/vrsetup.c b/util-vserver/src/vrsetup.c new file mode 100644 index 0000000..81a3e5b --- /dev/null +++ b/util-vserver/src/vrsetup.c @@ -0,0 +1,127 @@ +// $Id$ --*- c -*-- + +// Copyright (C) 2004 Enrico Scholz +// +// 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 +#endif + +#include "wrappers.h" +#include "util.h" + +#include +#include + +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] \n" + " or "); + WRITE_STR(fd, cmd); + WRITE_MSG(fd, + " \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; +} -- 1.8.1.5