diff options
Diffstat (limited to 'src/util')
-rw-r--r-- | src/util/strencodings.cpp | 32 | ||||
-rw-r--r-- | src/util/strencodings.h | 9 |
2 files changed, 31 insertions, 10 deletions
diff --git a/src/util/strencodings.cpp b/src/util/strencodings.cpp index f3d54a2ac9..4734de3e0b 100644 --- a/src/util/strencodings.cpp +++ b/src/util/strencodings.cpp @@ -107,23 +107,25 @@ std::vector<unsigned char> ParseHex(const std::string& str) return ParseHex(str.c_str()); } -void SplitHostPort(std::string in, int &portOut, std::string &hostOut) { +void SplitHostPort(std::string in, uint16_t& portOut, std::string& hostOut) +{ 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; - bool fBracketed = fHaveColon && (in[0]=='[' && in[colon-1]==']'); // if there is a colon, and in[0]=='[', colon is not 0, so in[colon-1] is safe - bool fMultiColon = fHaveColon && (in.find_last_of(':',colon-1) != in.npos); - if (fHaveColon && (colon==0 || fBracketed || !fMultiColon)) { - int32_t n; - if (ParseInt32(in.substr(colon + 1), &n) && n > 0 && n < 0x10000) { + bool fBracketed = fHaveColon && (in[0] == '[' && in[colon - 1] == ']'); // if there is a colon, and in[0]=='[', colon is not 0, so in[colon-1] is safe + bool fMultiColon = fHaveColon && (in.find_last_of(':', colon - 1) != in.npos); + if (fHaveColon && (colon == 0 || fBracketed || !fMultiColon)) { + uint16_t n; + if (ParseUInt16(in.substr(colon + 1), &n)) { in = in.substr(0, colon); portOut = n; } } - if (in.size()>0 && in[0] == '[' && in[in.size()-1] == ']') - hostOut = in.substr(1, in.size()-2); - else + if (in.size() > 0 && in[0] == '[' && in[in.size() - 1] == ']') { + hostOut = in.substr(1, in.size() - 2); + } else { hostOut = in; + } } std::string EncodeBase64(Span<const unsigned char> input) @@ -334,6 +336,18 @@ bool ParseUInt8(const std::string& str, uint8_t *out) return true; } +bool ParseUInt16(const std::string& str, uint16_t* out) +{ + uint32_t u32; + if (!ParseUInt32(str, &u32) || u32 > std::numeric_limits<uint16_t>::max()) { + return false; + } + if (out != nullptr) { + *out = static_cast<uint16_t>(u32); + } + return true; +} + bool ParseUInt32(const std::string& str, uint32_t *out) { if (!ParsePrechecks(str)) diff --git a/src/util/strencodings.h b/src/util/strencodings.h index 98379e9138..26dc0a0ce3 100644 --- a/src/util/strencodings.h +++ b/src/util/strencodings.h @@ -65,7 +65,7 @@ std::string EncodeBase32(Span<const unsigned char> input, bool pad = true); */ std::string EncodeBase32(const std::string& str, bool pad = true); -void SplitHostPort(std::string in, int& portOut, std::string& hostOut); +void SplitHostPort(std::string in, uint16_t& portOut, std::string& hostOut); int64_t atoi64(const std::string& str); int atoi(const std::string& str); @@ -116,6 +116,13 @@ constexpr inline bool IsSpace(char c) noexcept { [[nodiscard]] bool ParseUInt8(const std::string& str, uint8_t *out); /** + * Convert decimal string to unsigned 16-bit integer with strict parse error feedback. + * @returns true if the entire string could be parsed as valid integer, + * false if the entire string could not be parsed or if overflow or underflow occurred. + */ +[[nodiscard]] bool ParseUInt16(const std::string& str, uint16_t* out); + +/** * Convert decimal string to unsigned 32-bit integer with strict parse error feedback. * @returns true if the entire string could be parsed as valid integer, * false if not the entire string could be parsed or when overflow or underflow occurred. |