fix ws curl error message + some Windows warnings

ixwebsocket/IXGetFreePort.cpp

@@ -31,7 +31,7 @@ namespace ix
 
     int getAnyFreePort()
     {
-        int sockfd;
+        socket_t sockfd;
         if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
         {
             return getAnyFreePortRandom();

ixwebsocket/IXNetSystem.cpp

@@ -45,7 +45,7 @@ namespace ix
     int poll(struct pollfd* fds, nfds_t nfds, int timeout)
     {
 #ifdef _WIN32
-        int maxfd = 0;
+        socket_t maxfd = 0;
         fd_set readfds, writefds, errorfds;
         FD_ZERO(&readfds);
         FD_ZERO(&writefds);

ixwebsocket/IXNetSystem.h

@@ -34,6 +34,12 @@ typedef unsigned long int nfds_t;
 
 namespace ix
 {
+#ifdef _WIN32
+    typedef SOCKET socket_t;
+#else
+    typedef int socket_t;
+#endif
+
     bool initNetSystem();
     bool uninitNetSystem();
 

ixwebsocket/IXSocketConnect.cpp

@@ -35,7 +35,7 @@ namespace ix
     {
         errMsg = "no error";
 
-        int fd = socket(address->ai_family, address->ai_socktype, address->ai_protocol);
+        socket_t fd = socket(address->ai_family, address->ai_socktype, address->ai_protocol);
         if (fd < 0)
         {
             errMsg = "Cannot create a socket";

ixwebsocket/IXSocketServer.h

@@ -9,6 +9,7 @@
 #include "IXConnectionState.h"
 #include "IXSelectInterrupt.h"
 #include "IXSocketTLSOptions.h"
+#include "IXNetSystem.h"
 #include <atomic>
 #include <condition_variable>
 #include <functional>
@@ -75,7 +76,7 @@ namespace ix
         int _addressFamily;
 
         // socket for accepting connections
-        int _serverFd;
+        socket_t _serverFd;
 
         std::atomic<bool> _stop;
 

ws/ws.cpp

@@ -1620,7 +1620,7 @@ namespace ix
         spdlog::info("Status: {}", response->statusCode);
         if (response->errorCode != HttpErrorCode::Ok)
         {
-            spdlog::info("error message: ", response->errorMsg);
+            spdlog::error("error message: {}", response->errorMsg);
         }
 
         if (!headersOnly && response->errorCode == HttpErrorCode::Ok)