commit 920ffea9b631e712ff0826911db01a76edbe7521
Author:     Simon Howard <fraggle@gmail.com>
AuthorDate: Sat Feb 4 23:05:42 2012 +0000
Commit:     Simon Howard <fraggle@gmail.com>
CommitDate: Sat Feb 4 23:05:42 2012 +0000

    On Windows, convert the USER and USERNAME environment variables from OEM
    codepage to UTF-8 encoding. This should fix the case where the user has
    a username that includes non-ASCII characters (thanks Alexandre Xavier).

    Subversion-branch: /trunk/chocolate-doom
    Subversion-revision: 2495
---
 setup/multiplayer.c | 32 ++++++++++++++++++++++++++++++++
 src/m_misc.c        | 23 +++++++++++++++++++++--
 src/m_misc.h        |  1 +
 src/net_client.c    | 12 ++++++++++++
 4 files changed, 66 insertions(+), 2 deletions(-)

diff --git a/setup/multiplayer.c b/setup/multiplayer.c
index ae4e98a5..e8977763 100644
--- a/setup/multiplayer.c
+++ b/setup/multiplayer.c
@@ -793,6 +793,28 @@ void SetChatMacroDefaults(void)
     }
 }

+#ifdef _WIN32
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+char *M_OEMToUTF8(const char *oem)
+{
+    unsigned int len = strlen(oem) + 1;
+    wchar_t *tmp;
+    char *result;
+
+    tmp = malloc(len * sizeof(wchar_t));
+    MultiByteToWideChar(CP_OEMCP, 0, oem, len, tmp, len);
+    result = malloc(len * 4);
+    WideCharToMultiByte(CP_UTF8, 0, tmp, len, result, len * 4, NULL, NULL);
+    free(tmp);
+
+    return result;
+}
+
+#endif
+
 void SetPlayerNameDefault(void)
 {
     if (net_player_name == NULL)
@@ -805,6 +827,16 @@ void SetPlayerNameDefault(void)
         net_player_name = getenv("USERNAME");
     }

+    // On Windows, environment variables are in OEM codepage
+    // encoding, so convert to UTF8:
+
+#ifdef _WIN32
+    if (net_player_name != NULL)
+    {
+        net_player_name = M_OEMToUTF8(net_player_name);
+    }
+#endif
+
     if (net_player_name == NULL)
     {
         net_player_name = "player";
diff --git a/src/m_misc.c b/src/m_misc.c
index 9a5fb84a..31c87898 100644
--- a/src/m_misc.c
+++ b/src/m_misc.c
@@ -30,9 +30,9 @@
 #include <ctype.h>
 #include <errno.h>

-// for mkdir:
-
 #ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
 #include <io.h>
 #ifdef _MSC_VER
 #include <direct.h>
@@ -206,3 +206,22 @@ boolean M_StrToInt(const char *str, int *result)
         || sscanf(str, " %d", result) == 1;
 }

+#ifdef _WIN32
+
+char *M_OEMToUTF8(const char *oem)
+{
+    unsigned int len = strlen(oem) + 1;
+    wchar_t *tmp;
+    char *result;
+
+    tmp = malloc(len * sizeof(wchar_t));
+    MultiByteToWideChar(CP_OEMCP, 0, oem, len, tmp, len);
+    result = malloc(len * 4);
+    WideCharToMultiByte(CP_UTF8, 0, tmp, len, result, len * 4, NULL, NULL);
+    free(tmp);
+
+    return result;
+}
+
+#endif
+
diff --git a/src/m_misc.h b/src/m_misc.h
index 0fe8e62e..6c2da4b1 100644
--- a/src/m_misc.h
+++ b/src/m_misc.h
@@ -40,6 +40,7 @@ char *M_TempFile(char *s);
 boolean M_FileExists(char *file);
 long M_FileLength(FILE *handle);
 boolean M_StrToInt(const char *str, int *result);
+char *M_OEMToUTF8(const char *ansi);

 #endif

diff --git a/src/net_client.c b/src/net_client.c
index e338362e..b3109ecd 100644
--- a/src/net_client.c
+++ b/src/net_client.c
@@ -33,6 +33,7 @@
 #include "i_system.h"
 #include "i_timer.h"
 #include "m_argv.h"
+#include "m_misc.h"
 #include "net_client.h"
 #include "net_common.h"
 #include "net_defs.h"
@@ -1273,6 +1274,17 @@ void NET_CL_Init(void)
         net_player_name = getenv("USER");
     if (net_player_name == NULL)
         net_player_name = getenv("USERNAME");
+
+    // On Windows, environment variables are in OEM codepage
+    // encoding, so convert to UTF8:
+
+#ifdef _WIN32
+    if (net_player_name != NULL)
+    {
+        net_player_name = M_OEMToUTF8(net_player_name);
+    }
+#endif
+
     if (net_player_name == NULL)
         net_player_name = "Player";
 }