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Squashed 'OpenVPN Adapter/Vendors/openvpn/' content from commit da99df6

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git-subtree-dir: OpenVPN Adapter/Vendors/openvpn
git-subtree-split: da99df69492256d7a18bbea303ae98457782a4bf
This commit is contained in:
Sergey Abramchuk
2017-04-09 14:13:07 +03:00
commit f65d76170b
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openvpn/addr/regex.hpp
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// Regular expressions for IPv4/v6
// Source: http://stackoverflow.com/questions/53497/regular-expression-that-matches-valid-ipv6-addresses
#ifndef OPENVPN_ADDR_REGEX_H
#define OPENVPN_ADDR_REGEX_H
#include <string>
namespace openvpn {
namespace IP {
inline std::string v4_regex()
{
const std::string ipv4seg = "(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9])";
return "(?:" + ipv4seg + "\\.){3,3}" + ipv4seg;
}
inline std::string v6_regex()
{
const std::string ipv6seg = "[0-9a-fA-F]{1,4}";
return "(?:"
"(?:" + ipv6seg + ":){7,7}" + ipv6seg + "|" // 1:2:3:4:5:6:7:8
"(?:" + ipv6seg + ":){1,7}:|" // 1:: 1:2:3:4:5:6:7::
"(?:" + ipv6seg + ":){1,6}:" + ipv6seg + "|" // 1::8 1:2:3:4:5:6::8 1:2:3:4:5:6::8
"(?:" + ipv6seg + ":){1,5}(?::" + ipv6seg + "){1,2}|" // 1::7:8 1:2:3:4:5::7:8 1:2:3:4:5::8
"(?:" + ipv6seg + ":){1,4}(?::" + ipv6seg + "){1,3}|" // 1::6:7:8 1:2:3:4::6:7:8 1:2:3:4::8
"(?:" + ipv6seg + ":){1,3}(?::" + ipv6seg + "){1,4}|" // 1::5:6:7:8 1:2:3::5:6:7:8 1:2:3::8
"(?:" + ipv6seg + ":){1,2}(?::" + ipv6seg + "){1,5}|" + // 1::4:5:6:7:8 1:2::4:5:6:7:8 1:2::8
ipv6seg + ":(?:(?::" + ipv6seg + "){1,6})|" // 1::3:4:5:6:7:8 1::3:4:5:6:7:8 1::8
":(?:(?::" + ipv6seg + "){1,7}|:)|" // ::2:3:4:5:6:7:8 ::2:3:4:5:6:7:8 ::8 ::
"fe80:(?::" + ipv6seg + "){0,4}%[0-9a-zA-Z]{1,}|" // fe80::7:8%eth0 fe80::7:8%1 (link-local IPv6 addresses with zone index)
"::(?:ffff(?::0{1,4}){0,1}:){0,1}" + v4_regex() + "|" // ::255.255.255.255 ::ffff:255.255.255.255 ::ffff:0:255.255.255.255 (IPv4-mapped IPv6 addresses and IPv4-translated addresses)
"(?:" + ipv6seg + ":){1,4}:" + v4_regex() + // 2001:db8:3:4::192.0.2.33 64:ff9b::192.0.2.33 (IPv4-Embedded IPv6 Address)
")";
}
}
}
#endif