Justin Marshall
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdlib>
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#include <cstring>
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class idBase64 {
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public:
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unsigned char* data;
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int len;
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int alloced;
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idBase64() : data(nullptr), len(0), alloced(0) {}
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idBase64(const idBase64& other) : idBase64() {
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if (EnsureAlloced(other.len + 1)) {
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std::memcpy(data, other.data, static_cast<std::size_t>(other.len + 1));
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len = other.len;
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}
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}
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~idBase64() { std::free(data); }
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idBase64& operator=(const idBase64& other) {
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if (this != &other && EnsureAlloced(other.len + 1)) {
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std::memcpy(data, other.data, static_cast<std::size_t>(other.len + 1));
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len = other.len;
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}
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return *this;
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}
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void Encode(const unsigned char* source, int size);
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int Decode(unsigned char* destination) const;
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const char* c_str() const {
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return data == nullptr ? "" : reinterpret_cast<const char*>(data);
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}
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int Length() const { return len; }
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private:
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bool EnsureAlloced(const int amount) {
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if (amount <= alloced) return true;
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void* replacement = std::realloc(data, static_cast<std::size_t>(amount));
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if (replacement == nullptr) return false;
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data = static_cast<unsigned char*>(replacement);
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alloced = amount;
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return true;
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}
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};
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#if defined(_WIN32) && !defined(_WIN64)
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static_assert(sizeof(idBase64) == 12, "Recovered idBase64 ABI changed");
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#endif
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