mirror of
https://github.com/OpenVPN/openvpn3.git
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34 lines
568 B
C++
34 lines
568 B
C++
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#ifndef OPENVPN_COMMON_HEXSTR_H
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#define OPENVPN_COMMON_HEXSTR_H
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#include <string>
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namespace openvpn {
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char hexchar(const int c)
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{
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if (c < 10)
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return '0' + c;
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else if (c < 16)
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return 'a' - 10 + c;
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else
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return '?';
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}
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std::string hexstr(const unsigned char *data, size_t size)
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{
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std::string ret;
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ret.reserve(size*2+1);
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while (size--)
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{
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const unsigned char c = *data++;
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ret += hexchar(c >> 4);
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ret += hexchar(c & 0x0F);
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}
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return ret;
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}
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} // namespace openvpn
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#endif // OPENVPN_COMMON_HEXSTR_H
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