/usr/include/bobcat/cidr is in libbobcat-dev 3.23.01-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 | #ifndef _INCLUDED_BOBCAT_CIDR_
#define _INCLUDED_BOBCAT_CIDR_
#include <string>
#include <iosfwd>
#include <vector>
#include <bobcat/x2a>
namespace FBB
{
class Pattern;
class Cidr
{
typedef std::pair<size_t, size_t> MaskPair; // 1st address, mask value
typedef std::vector<MaskPair> VectorMaskP;
VectorMaskP d_cidr;
VectorMaskP::const_iterator d_iter;
std::string d_matched; // address matched last
size_t d_last; // last address in CIDR
public:
Cidr() = default;
Cidr(std::string const &cidrPattern); // 1 one pattern to check
Cidr(std::istream &cidrStream); // 2 stream of patterns
Cidr(Cidr &&tmp); // 3
Cidr &operator=(Cidr const &rhs) = default;
Cidr &operator=(Cidr &&tmp);
// all lines of 'in' are inspected for ip addresses matching
// any cidr-specification in d_cidr
bool match(std::istream &in); // 1 true means: match found
bool match(std::string const &line); // 2 match a single line
void setCidr(std::string const &cidrPattern); // 1
void setCidr(std::istream &cidrStream); // 2
// following a successful match the following members return
// dotted decimal addresses / maskvalues as strings
std::string cidr() const; // CIDR containing address()
std::string const &address() const; // .f the address matching a CIDR
std::string mask() const; // .f the mask used by cidr()
std::string first() const; // .f the 1st address in cidr()
std::string last() const; // .f the last address in cidr()
// convert "a.b.c.d" to
// 32-bits value
static size_t dotted2binary(std::string const &dotted);
// reverse operation
static std::string binary2dotted(size_t binary);
private:
bool matchLine(std::string const &line);
MaskPair parse(std::string const &cidrPattern);
void pushCidr(std::string const &cidrPattern);
bool compare(MaskPair const &mp, std::string const &address);
};
inline std::string const &Cidr::address() const
{
return d_matched;
}
inline std::string Cidr::mask() const
{
return X2a(d_iter->second);
}
inline std::string Cidr::first() const
{
return binary2dotted(d_iter->first);
}
inline std::string Cidr::last() const
{
return binary2dotted(d_last);
}
} // namespace FBB
#endif
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