Convert Hexdump to string in c
Is there a way to convert a hexdump e.g. aec4d2f3c6a4e70ea6cea074f65812d2a34b180cc92b817e开发者_如何学Godcd867167e7a91c5beb942f0 to a string in c so that every two hexadecimal digits make a char? If so, what?
Reads from stdin and prints to stdout:
int main()
{
int ch;
while(scanf("%2x", &ch) == 1)
putchar(ch);
}
I think you can modify it easily yourself for your specific source and destination requirements.
One of the ways:
size_t unBytes = strHex.size() / 2;
std::string strResult(unBytes, 0);
for (size_t i = 0; i < unBytes; ++i)
{
std::istringstream in(strHex.substr(2*i, 2));
int byte = 0;
in >> std::hex >> byte;
strResult[i] = byte;
}
Use scanf with %hhx
repeatedly. See man scanf
.
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