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Validate port value in SplitHostPort

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Forward the validation of the port from `ParseUInt16(...)`.
Consider port 0 as invalid.
Add suitable test for the `SplitHostPort` function.
Add doxygen description to the `SplitHostPort` function.
This commit is contained in:
amadeuszpawlik
2021-05-27 13:53:42 +02:00
committed by Amadeusz Pawlik
parent 5e82b9ba96
commit f8387c4234
3 changed files with 37 additions and 5 deletions
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8
src/util/strencodings.cpp
View File

@@ -97,8 +97,9 @@ std::vector<Byte> ParseHex(std::string_view str)
template std::vector<std::byte> ParseHex(std::string_view);
template std::vector<uint8_t> ParseHex(std::string_view);
void SplitHostPort(std::string_view in, uint16_t& portOut, std::string& hostOut)
bool SplitHostPort(std::string_view in, uint16_t& portOut, std::string& hostOut)
{
bool valid = false;
size_t colon = in.find_last_of(':');
// if a : is found, and it either follows a [...], or no other : is in the string, treat it as port separator
bool fHaveColon = colon != in.npos;
@@ -109,13 +110,18 @@ void SplitHostPort(std::string_view in, uint16_t& portOut, std::string& hostOut)
if (ParseUInt16(in.substr(colon + 1), &n)) {
in = in.substr(0, colon);
portOut = n;
valid = (portOut != 0);
}
} else {
valid = true;
}
if (in.size() > 0 && in[0] == '[' && in[in.size() - 1] == ']') {
hostOut = in.substr(1, in.size() - 2);
} else {
hostOut = in;
}
return valid;
}
std::string EncodeBase64(Span<const unsigned char> input)

11
src/util/strencodings.h
View File

@@ -88,7 +88,16 @@ std::string EncodeBase32(Span<const unsigned char> input, bool pad = true);
*/
std::string EncodeBase32(std::string_view str, bool pad = true);
void SplitHostPort(std::string_view in, uint16_t& portOut, std::string& hostOut);
/**
* Splits socket address string into host string and port value.
* Validates port value.
*
* @param[in] in The socket address string to split.
* @param[out] portOut Port-portion of the input, if found and parsable.
* @param[out] hostOut Host-portion of the input, if found.
* @return true if port-portion is absent or within its allowed range, otherwise false
*/
bool SplitHostPort(std::string_view in, uint16_t& portOut, std::string& hostOut);
// LocaleIndependentAtoi is provided for backwards compatibility reasons.
//