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32 lines
652 B
C++
32 lines
652 B
C++
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#ifndef LLARP_ENCODE_HPP
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#define LLARP_ENCODE_HPP
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#include <cstdlib>
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namespace llarp
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{
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/// encode V as hex to stack
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/// null terminate
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/// return pointer to base of stack buffer on success otherwise returns
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/// nullptr
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template < typename V, typename Stack >
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const char*
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HexEncode(const V& value, Stack& stack)
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{
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size_t idx = 0;
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char* ptr = &stack[0];
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char* end = ptr + sizeof(stack);
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while(idx < value.size())
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{
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auto wrote = snprintf(ptr, end - ptr, "%.2x", value[idx]);
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if(wrote == -1)
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return nullptr;
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ptr += wrote;
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idx++;
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}
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*ptr = 0;
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return &stack[0];
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}
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}
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#endif
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