6 files changed, 52 insertions, 15 deletions

diff --git a/src/common.c b/src/common.c
index 4358945..e772a2f 100644
--- a/src/common.c
+++ b/src/common.c
@@ -80,7 +80,12 @@ bool nn_common_init(const char *thread_name)
 {
     if (thread_name) nn_thread_set_name(thread_name);
 
+    // https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/setlocale-wsetlocale?view=msvc-170#utf-8-support
+#if defined NAUNET_ON_WINDOWS && !defined NAUNET_WIN32_COMPAT_MODE
+    if (!setlocale(LC_ALL, ".UTF8")) return false;
+#else
     if (!setlocale(LC_ALL, "")) return false;
+#endif
 
     al_set_print(al_print_default, NULL);
 
diff --git a/src/socket/socket_linux.c b/src/socket/socket_linux.c
index e6947c3..2634fc2 100644
--- a/src/socket/socket_linux.c
+++ b/src/socket/socket_linux.c
@@ -223,11 +223,11 @@ bool nn_socket_accept(struct nn_socket *sock, struct nn_socket *cl, s32 flags)
             port = ntohs(saddr->sin6_port);
             inet_ntop(AF_INET6, &saddr->sin6_addr, addr_str, sizeof(addr_str));
         }
-        log_info("Connection from %s:%hu.", addr_str, port);
+        log_debug("Connection from %s:%hu.", addr_str, port);
         break;
     }
     case NNWT_SOCKET_UNIX:
-        log_info("Connection on UNIX socket.");
+        log_debug("Connection on UNIX socket.");
         break;
     }
 
@@ -285,7 +285,7 @@ ssize_t nn_socket_recvfrom(struct nn_socket *sock, void *buf, size_t size)
 bool nn_socket_check_error(ssize_t ret)
 {
     if (ret < 0) {
-        log_debug("Socket error: %s (%d).", nn_strerror(errno), errno);
+        log_debug("Error description: %s (%d).", nn_strerror(errno), errno);
         return true;
     }
     return false;
diff --git a/src/socket/socket_windows.c b/src/socket/socket_windows.c
index 9baa312..5e3386c 100644
--- a/src/socket/socket_windows.c
+++ b/src/socket/socket_windows.c
@@ -114,6 +114,7 @@ bool nn_socket_connect(struct nn_socket *sock, str *addr, u16 port)
     s32 ret = connect(sock->fd, (SOCKADDR *)&sock->addr_in, sizeof(sock->addr_in));
     if (ret == SOCKET_ERROR && WSAGetLastError() != WSAEWOULDBLOCK) {
         log_error("connect(%.*s:%hu) failed: %d.", nn_addr_x(addr), port, WSAGetLastError());
+        nn_socket_check_error(ret);
         return false;
     }
 
@@ -156,7 +157,9 @@ bool nn_socket_check_error(ssize_t ret)
     if (ret == SOCKET_ERROR) {
         s32 err = WSAGetLastError();
         char *strerror = nn_win32_error_message(err);
-        log_debug("Socket error: %s (%d).", strerror ? strerror : "(None)", err);
+        if (strerror) {
+            log_error("Error description: %s (%d).", strerror, err);
+        }
         return true;
     }
     return false;
diff --git a/src/util/error.c b/src/util/error.c
index 46fd8e6..7f2e847 100644
--- a/src/util/error.c
+++ b/src/util/error.c
@@ -1,6 +1,9 @@
 #include "error.h"
 
 static __thread char errorbuf[NNWT_ERROR_STR_MAXLEN];
+#ifdef NAUNET_ON_WINDOWS
+static __thread wchar_t errorbufw[NNWT_ERROR_STR_MAXLEN];
+#endif
 
 char *nn_strerror(s32 errnum)
 {
@@ -19,21 +22,31 @@ char *nn_strerror(s32 errnum)
 #ifdef NAUNET_ON_WINDOWS
 #include "../winwrap.h"
 
-// @TODO: GetLastError() should be used in common places like file_stdio.
+#include <wchar.h>
 
 // https://stackoverflow.com/a/46104456
 char *nn_win32_error_message(s32 err)
 {
-    /*
-    DWORD ret = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+    DWORD ret = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
         NULL,
         err,
-        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-        errorbuf,
+        0,
+        errorbufw,
         NNWT_ERROR_STR_MAXLEN,
         NULL);
-    return !ret ? NULL : errorbuf;
-    */
-    return NULL;
+    if (!ret) {
+        return NULL;
+    }
+    errorbufw[ret] = L'\0';
+    mbstate_t mbstate = { 0 };
+    wchar_t *wc = errorbufw;
+    size_t length = wcsrtombs(NULL, (const wchar_t **)&wc, 0, &mbstate);
+    if (length == (size_t)-1) {
+        return NULL;
+    }
+    length = wcsrtombs(errorbuf, (const wchar_t **)&wc, length, &mbstate);
+    al_assert(length < NNWT_ERROR_STR_MAXLEN);
+    errorbuf[length] = L'\0';
+    return errorbuf;
 }
 #endif
diff --git a/src/util/file/file_stdio.c b/src/util/file/file_stdio.c
index 5bdc7d9..6a30137 100644
--- a/src/util/file/file_stdio.c
+++ b/src/util/file/file_stdio.c
@@ -4,12 +4,27 @@
 
 #ifdef NAUNET_ON_WINDOWS
 #include "../../winwrap.h"
+#else
+#include <unistd.h>
 #endif
 
 #include "../error.h"
 
 #include "file.h"
 
+static void check_error_description(s32 err)
+{
+#ifdef NAUNET_ON_WINDOWS
+    err = GetLastError();
+    char *strerror = nn_win32_error_message(err);
+    if (strerror) {
+        log_error("Error description: %s.", strerror);
+    }
+#else
+    log_error("Error description: %s.", nn_strerror(err));
+#endif
+}
+
 static inline bool open_stdio_file(FILE **file, str *path, const char *mode)
 {
     char *c_str = al_str_to_c_str(path);
@@ -34,7 +49,8 @@ bool nn_file_open(struct nn_file *file, str *path, s32 flags)
 {
     const char *mode = (flags & NNWT_FILE_CREATE) ? "wb+" : "rb+";
     if (!open_stdio_file(&file->file, path, mode)) {
-        log_error("fopen(%.*s) failed (%d: %s).", al_str_x(path), errno, nn_strerror(errno));
+        log_error("fopen(%.*s) failed (%d).", al_str_x(path), errno);
+        check_error_description(errno);
         return false;
     }
 
diff --git a/subprojects/libalabaster.wrap b/subprojects/libalabaster.wrap
index 5323646..ae8b95c 100644
--- a/subprojects/libalabaster.wrap
+++ b/subprojects/libalabaster.wrap
@@ -1,5 +1,5 @@
 [wrap-git]
-directory = libalabaster-b617e3c
+directory = libalabaster-98de33b
 url = https://git.akon.city/libalabaster.git
-revision = b617e3ccb25a0ac3c22f8c02722c8108b2f78d6e
+revision = 98de33b1f74a381f442773f1cc73d1b07288bee1
 depth = 1