mirror/esphome
1
0
Fork 0
mirror of https://github.com/esphome/esphome.git synced 2026-02-18 15:35:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

[network] Fix IPAddress::str_to() to lowercase IPv6 hex digits (#13325)

Browse Source
This commit is contained in:
J. Nick Koston
2026-01-17 18:06:54 -10:00
committed by Jonathan Swoboda
parent 77df3933db
commit 85a5a26519
1 changed files with 26 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
esphome/components/network/ip_address.h
View File

@@ -43,6 +43,14 @@ namespace network {
/// Buffer size for IP address string (IPv6 max: 39 chars + null)
static constexpr size_t IP_ADDRESS_BUFFER_SIZE = 40;
/// Lowercase hex digits in IP address string (A-F -> a-f for IPv6 per RFC 5952)
inline void lowercase_ip_str(char *buf) {
for (char *p = buf; *p; ++p) {
if (*p >= 'A' && *p <= 'F')
*p += 32;
}
}
struct IPAddress {
public:
#ifdef USE_HOST
@@ -52,10 +60,15 @@ struct IPAddress {
}
IPAddress(const std::string &in_address) { inet_aton(in_address.c_str(), &ip_addr_); }
IPAddress(const ip_addr_t *other_ip) { ip_addr_ = *other_ip; }
std::string str() const { return str_lower_case(inet_ntoa(ip_addr_)); }
std::string str() const {
char buf[IP_ADDRESS_BUFFER_SIZE];
this->str_to(buf);
return buf;
}
/// Write IP address to buffer. Buffer must be at least IP_ADDRESS_BUFFER_SIZE bytes.
char *str_to(char *buf) const {
return const_cast<char *>(inet_ntop(AF_INET, &ip_addr_, buf, IP_ADDRESS_BUFFER_SIZE));
inet_ntop(AF_INET, &ip_addr_, buf, IP_ADDRESS_BUFFER_SIZE);
return buf; // IPv4 only, no hex letters to lowercase
}
#else
IPAddress() { ip_addr_set_zero(&ip_addr_); }
@@ -134,9 +147,18 @@ struct IPAddress {
bool is_ip4() const { return IP_IS_V4(&ip_addr_); }
bool is_ip6() const { return IP_IS_V6(&ip_addr_); }
bool is_multicast() const { return ip_addr_ismulticast(&ip_addr_); }
std::string str() const { return str_lower_case(ipaddr_ntoa(&ip_addr_)); }
std::string str() const {
char buf[IP_ADDRESS_BUFFER_SIZE];
this->str_to(buf);
return buf;
}
/// Write IP address to buffer. Buffer must be at least IP_ADDRESS_BUFFER_SIZE bytes.
char *str_to(char *buf) const { return ipaddr_ntoa_r(&ip_addr_, buf, IP_ADDRESS_BUFFER_SIZE); }
/// Output is lowercased per RFC 5952 (IPv6 hex digits a-f).
char *str_to(char *buf) const {
ipaddr_ntoa_r(&ip_addr_, buf, IP_ADDRESS_BUFFER_SIZE);
lowercase_ip_str(buf);
return buf;
}
bool operator==(const IPAddress &other) const { return ip_addr_cmp(&ip_addr_, &other.ip_addr_); }
bool operator!=(const IPAddress &other) const { return !ip_addr_cmp(&ip_addr_, &other.ip_addr_); }
IPAddress &operator+=(uint8_t increase) {