src/acl/IntRange.cc

   1 /*
   2  * Copyright (C) 1996-2018 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 /* DEBUG: section 28    Access Control */
  10
  11 #include "squid.h"
  12 #include "acl/IntRange.h"
  13 #include "cache_cf.h"
  14 #include "ConfigParser.h"
  15 #include "Debug.h"
  16 #include "fatal.h"
  17 #include "Parsing.h"
  18
  19 void
  20 ACLIntRange::parse()
  21 {
  22     while (char *a = ConfigParser::strtokFile()) {
  23         char *b = strchr(a, '-');
  24         unsigned short port1, port2;
  25
  26         if (b) {
  27             *b = '\0';
  28             ++b;
  29         }
  30
  31         port1 = xatos(a);
  32
  33         if (b)
  34             port2 = xatos(b);
  35         else
  36             port2 = port1;
  37
  38         if (port2 >= port1) {
  39             RangeType temp(port1, port2+1);
  40             ranges.push_back(temp);
  41         } else {
  42             debugs(28, DBG_CRITICAL, "ACLIntRange::parse: Invalid port value");
  43             self_destruct();
  44         }
  45     }
  46 }
  47
  48 bool
  49 ACLIntRange::empty() const
  50 {
  51     return ranges.empty();
  52 }
  53
  54 bool
  55 ACLIntRange::match(int i)
  56 {
  57     RangeType const toFind(i, i+1);
  58     for (const auto &element : ranges) {
  59         RangeType result = element.intersection(toFind);
  60         if (result.size())
  61             return true;
  62     }
  63
  64     return false;
  65 }
  66
  67 ACLData<int> *
  68 ACLIntRange::clone() const
  69 {
  70     if (!ranges.empty())
  71         fatal("ACLIntRange::clone: attempt to clone used ACL");
  72
  73     return new ACLIntRange(*this);
  74 }
  75
  76 ACLIntRange::~ACLIntRange()
  77 {}
  78
  79 SBufList
  80 ACLIntRange::dump() const
  81 {
  82     SBufList sl;
  83     for (const auto &element : ranges) {
  84         SBuf sb;
  85
  86         if (element.size() == 1)
  87             sb.Printf("%d", element.start);
  88         else
  89             sb.Printf("%d-%d", element.start, element.end-1);
  90
  91         sl.push_back(sb);
  92     }
  93
  94     return sl;
  95 }
  96