vshost-util-vserver

Build script and sources for util-vserver.
git clone https://ccx.te2000.cz/git/vshost-util-vserver
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ncaps-net.c (1850B)


      1 // $Id$    --*- c -*--
      2 
      3 // Copyright (C) 2004 Enrico Scholz <ensc@delenn.intern.sigma-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 "vserver.h"
     24 #include "internal.h"
     25 #include <lib_internal/util-dimof.h>
     26 
     27 #include <string.h>
     28 #include <strings.h>
     29 #include <assert.h>
     30 
     31 #define DECL(STR, VAL) { STR, sizeof(STR)-1, VAL }
     32 
     33 static struct Mapping_uint64 const VALUES[] = {
     34   DECL("tun_create",	VC_NXC_TUN_CREATE),
     35   DECL("raw_icmp",	VC_NXC_RAW_ICMP),
     36 };
     37 
     38 inline static char const *
     39 removePrefix(char const *str, size_t *len)
     40 {
     41   if ((len==0 || *len==0 || *len>4) &&
     42       strncasecmp("nxc_", str, 4)==0) {
     43     if (len && *len>4) *len -= 4;
     44     return str+4;
     45   }
     46   else
     47     return str;
     48 }
     49 
     50 uint_least64_t
     51 vc_text2ncap(char const *str, size_t len)
     52 {
     53   char const *	tmp = removePrefix(str, &len);
     54   ssize_t	idx = utilvserver_value2text_uint64(tmp, len,
     55 						    VALUES, DIM_OF(VALUES));
     56   if (idx==-1) return 0;
     57   else         return VALUES[idx].val;
     58 }
     59 
     60 char const *
     61 vc_loncap2text(uint_least64_t *val)
     62 {
     63   ssize_t	idx = utilvserver_text2value_uint64(val,
     64 						    VALUES, DIM_OF(VALUES));
     65 
     66   if (idx==-1) return 0;
     67   else         return VALUES[idx].id;
     68 }