vshost-util-vserver

Build script and sources for util-vserver.
git clone https://ccx.te2000.cz/git/vshost-util-vserver
Log | Files | Refs

chxid.c (2924B)

      1 // $Id$    --*- c -*--
      2 
      3 // Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
      4 //  
      5 // This program is free software; you can redistribute it and/or modify
      6 // it under the terms of the GNU General Public License as published by
      7 // the Free Software Foundation; version 2 of the License.
      8 //  
      9 // This program is distributed in the hope that it will be useful,
     10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
     11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     12 // GNU General Public License for more details.
     13 //  
     14 // You should have received a copy of the GNU General Public License
     15 // along with this program; if not, write to the Free Software
     16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
     17 
     18 
     19 #ifdef HAVE_CONFIG_H
     20 #  include <config.h>
     21 #endif
     22 
     23 #include "fstool.h"
     24 #include "util.h"
     25 
     26 #include "lib/vserver.h"
     27 
     28 #include <stdio.h>
     29 #include <stdlib.h>
     30 #include <sys/types.h>
     31 #include <sys/stat.h>
     32 #include <fcntl.h>
     33 
     34 struct option const
     35 CMDLINE_OPTIONS[] = {
     36   { "help",     no_argument,  0, CMD_HELP },
     37   { "version",  no_argument,  0, CMD_VERSION },
     38   { 0,0,0,0 }
     39 };
     40 
     41 char const		CMDLINE_OPTIONS_SHORT[] = "Rc:xU";
     42 
     43 void
     44 showHelp(int fd, char const *cmd, int res)
     45 {
     46   WRITE_MSG(fd, "Usage:  ");
     47   WRITE_STR(fd, cmd);
     48   WRITE_MSG(fd,
     49 	    " -c <ctx|vserver> [-RxU] [--] <file>+\n\n"
     50 	    " Options:\n"
     51 	    "   -R  ...  recurse through directories\n"
     52 	    "   -c  ...  assign the given context/vserver to the file(s)\n"
     53 	    "   -x  ...  do not cross filesystems\n"
     54 	    "   -U  ...  skip unified files\n\n"
     55 	    "Please report bugs to " PACKAGE_BUGREPORT "\n");
     56   exit(res);
     57 }
     58 
     59 void
     60 showVersion()
     61 {
     62   WRITE_MSG(1,
     63 	    "chxid " VERSION " -- assigns a context to a file\n"
     64 	    "This program is part of " PACKAGE_STRING "\n\n"
     65 	    "Copyright (C) 2004 Enrico Scholz\n"
     66 	    VERSION_COPYRIGHT_DISCLAIMER);
     67   exit(0);
     68 }
     69 
     70 static inline bool
     71 isUnified(char const *filename)
     72 {
     73   uint_least32_t const	V = VC_IATTR_IUNLINK|VC_IATTR_IMMUTABLE;
     74 
     75   uint_least32_t	flags;
     76   uint_least32_t	mask = V;
     77 
     78   if (vc_get_iattr(filename, 0, &flags, &mask)==-1 || (mask & V) != V)
     79     return false;
     80 
     81   return (flags & V)==V  ? true : false;
     82 }
     83 
     84 bool
     85 handleFile(char const *name, char const * display_name)
     86 {
     87   if (!global_args->no_unified || !isUnified(name)) {
     88     int	rc = vc_set_iattr(name, global_args->ctx, 0, VC_IATTR_XID);
     89   
     90     if (rc==-1) {
     91       perror(display_name);
     92       return false;
     93     }
     94   }
     95 
     96   return true;
     97 }
     98 
     99 void
    100 fixupParams(struct Arguments UNUSED *args, int argc)
    101 {
    102   if (optind==argc) {
    103     WRITE_MSG(2, "No filename given; use '--help' for more information\n");
    104     exit(1);
    105   }
    106 
    107   if (args->ctx_str==0) {
    108     WRITE_MSG(2, "No context given; use '--help' for more information\n");
    109     exit(1);
    110   }
    111 
    112   args->ctx            = vc_tagopt2tag(args->ctx_str, true, 0);
    113   args->do_display_dir = !args->do_recurse;
    114   args->do_display_dot = true;
    115 }