spicetools/util/netutils.cpp

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2024-08-28 15:10:34 +00:00
#include <winsock2.h>
#include <ws2tcpip.h>
#include "netutils.h"
#include <iphlpapi.h>
#include <windows.h>
#include "util/utils.h"
namespace netutils {
std::vector<std::string> get_local_addresses() {
std::vector<std::string> return_addresses;
// use 16KB buffer and resize if needed
DWORD buffer_size = 16 * 1024;
IP_ADAPTER_ADDRESSES* adapter_addresses = nullptr;
for (size_t attempt_no = 0; attempt_no < 3; attempt_no++) {
// get adapter addresses
adapter_addresses = (IP_ADAPTER_ADDRESSES*) malloc(buffer_size);
DWORD error;
if ((error = GetAdaptersAddresses(
AF_UNSPEC,
GAA_FLAG_SKIP_ANYCAST |
GAA_FLAG_SKIP_MULTICAST |
GAA_FLAG_SKIP_DNS_SERVER |
GAA_FLAG_SKIP_FRIENDLY_NAME,
NULL,
adapter_addresses,
&buffer_size)) == ERROR_SUCCESS) {
// success
break;
} else if (error == ERROR_BUFFER_OVERFLOW) {
// retry using new size
free(adapter_addresses);
adapter_addresses = NULL;
continue;
} else {
// error - return empty list
free(adapter_addresses);
return return_addresses;
}
}
// now iterate the adapters
for (IP_ADAPTER_ADDRESSES* adapter = adapter_addresses; NULL != adapter; adapter = adapter->Next) {
// check if loopback
if (IF_TYPE_SOFTWARE_LOOPBACK == adapter->IfType) {
continue;
}
// iterate all IPv4 and IPv6 addresses
for (IP_ADAPTER_UNICAST_ADDRESS* adr = adapter->FirstUnicastAddress; adr; adr = adr->Next) {
switch (adr->Address.lpSockaddr->sa_family) {
case AF_INET: {
// cast address
SOCKADDR_IN* ipv4 = reinterpret_cast<SOCKADDR_IN*>(adr->Address.lpSockaddr);
// convert to string
char str_buffer[INET_ADDRSTRLEN] = {0};
inet_ntop(AF_INET, &(ipv4->sin_addr), str_buffer, INET_ADDRSTRLEN);
// save result
return_addresses.push_back(str_buffer);
break;
}
case AF_INET6: {
// cast address
SOCKADDR_IN6* ipv6 = reinterpret_cast<SOCKADDR_IN6*>(adr->Address.lpSockaddr);
// convert to string
char str_buffer[INET6_ADDRSTRLEN] = {0};
inet_ntop(AF_INET6, &(ipv6->sin6_addr), str_buffer, INET6_ADDRSTRLEN);
std::string ipv6_str(str_buffer);
// skip non-external addresses
if (!ipv6_str.find("fe")) {
char c = ipv6_str[2];
if (c == '8' || c == '9' || c == 'a' || c == 'b') {
// link local address
continue;
}
}
else if (!ipv6_str.find("2001:0:")) {
// special use address
continue;
}
// save result
return_addresses.push_back(ipv6_str);
break;
}
default: {
continue;
}
}
}
}
// success
free(adapter_addresses);
return return_addresses;
}
/*!
*
* HTTP Status Codes - C++ Variant
*
* https://github.com/j-ulrich/http-status-codes-cpp
*
* \version 1.5.0
* \author Jochen Ulrich <jochenulrich@t-online.de>
* \copyright Licensed under Creative Commons CC0 (http://creativecommons.org/publicdomain/zero/1.0/)
*/
std::string http_status_reason_phrase(int code) {
switch (code) {
//####### 1xx - Informational #######
case 100: return "Continue";
case 101: return "Switching Protocols";
case 102: return "Processing";
case 103: return "Early Hints";
//####### 2xx - Successful #######
case 200: return "OK";
case 201: return "Created";
case 202: return "Accepted";
case 203: return "Non-Authoritative Information";
case 204: return "No Content";
case 205: return "Reset Content";
case 206: return "Partial Content";
case 207: return "Multi-Status";
case 208: return "Already Reported";
case 226: return "IM Used";
//####### 3xx - Redirection #######
case 300: return "Multiple Choices";
case 301: return "Moved Permanently";
case 302: return "Found";
case 303: return "See Other";
case 304: return "Not Modified";
case 305: return "Use Proxy";
case 307: return "Temporary Redirect";
case 308: return "Permanent Redirect";
//####### 4xx - Client Error #######
case 400: return "Bad Request";
case 401: return "Unauthorized";
case 402: return "Payment Required";
case 403: return "Forbidden";
case 404: return "Not Found";
case 405: return "Method Not Allowed";
case 406: return "Not Acceptable";
case 407: return "Proxy Authentication Required";
case 408: return "Request Timeout";
case 409: return "Conflict";
case 410: return "Gone";
case 411: return "Length Required";
case 412: return "Precondition Failed";
case 413: return "Content Too Large";
case 414: return "URI Too Long";
case 415: return "Unsupported Media Type";
case 416: return "Range Not Satisfiable";
case 417: return "Expectation Failed";
case 418: return "I'm a teapot";
case 421: return "Misdirected Request";
case 422: return "Unprocessable Content";
case 423: return "Locked";
case 424: return "Failed Dependency";
case 425: return "Too Early";
case 426: return "Upgrade Required";
case 428: return "Precondition Required";
case 429: return "Too Many Requests";
case 431: return "Request Header Fields Too Large";
case 451: return "Unavailable For Legal Reasons";
//####### 5xx - Server Error #######
case 500: return "Internal Server Error";
case 501: return "Not Implemented";
case 502: return "Bad Gateway";
case 503: return "Service Unavailable";
case 504: return "Gateway Timeout";
case 505: return "HTTP Version Not Supported";
case 506: return "Variant Also Negotiates";
case 507: return "Insufficient Storage";
case 508: return "Loop Detected";
case 510: return "Not Extended";
case 511: return "Network Authentication Required";
default: return std::string();
}
}
}