From 481f23eeeff555b63e8057c4d90918da2385d094 Mon Sep 17 00:00:00 2001
From: Inori <superstellar.mocha@gmail.com>
Date: Fri, 6 Sep 2019 16:51:02 -0400
Subject: [PATCH] Add fake-api GetUserName

---
 README.md                   |  1 +
 binding/miniffi-binding.cpp |  1 +
 src/fake-api.cpp            | 10 ++++++++++
 src/fake-api.h              |  5 ++++-
 4 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 0bb5d7f6..41bdd669 100644
--- a/README.md
+++ b/README.md
@@ -106,6 +106,7 @@ mkxp-z provides limited support for some WinAPI functions that would normally br
 * `ReleaseCapture`: No-op.
 * `GetPrivateProfileString`: Emulated with MKXP's ini code.
 * `GetUserDefaultLangId`: Checks for JP, EN, FR, IT, DE, ES, KO, PT and ZH. Returns English (`0x09`) if the locale can't be determined. Doesn't handle sublanguages.
+* `GetUserName`: Returns the `$USER` environment variable, or `Ditto` if it doesn't exist.
 
 ## Midi music
 
diff --git a/binding/miniffi-binding.cpp b/binding/miniffi-binding.cpp
index 9fddfa09..8e6c71ef 100644
--- a/binding/miniffi-binding.cpp
+++ b/binding/miniffi-binding.cpp
@@ -74,6 +74,7 @@ MiniFFI_GetFunctionHandle(void *libhandle, const char *func)
     CAPTURE(ShowCursor);
     CAPTURE(GetPrivateProfileString);
     CAPTURE(GetUserDefaultLangID);
+    CAPTURE(GetUserName);
 #endif
 #endif
     if (!libhandle) return 0;
diff --git a/src/fake-api.cpp b/src/fake-api.cpp
index c08fa047..dbdaebaa 100644
--- a/src/fake-api.cpp
+++ b/src/fake-api.cpp
@@ -460,4 +460,14 @@ MKXP_GetUserDefaultLangID(void)
     return 0x09;
 }
 
+PREFABI BOOL
+MKXP_GetUserName(LPSTR lpBuffer, LPDWORD pcbBuffer)
+{
+    if (*pcbBuffer < 2) return false;
+    char *username = getenv("USER");
+    strncpy(lpBuffer, (username) ? username : "ditto", *pcbBuffer);
+    lpBuffer[0] = toupper(lpBuffer[0]);
+    return true;
+}
+
 #endif
diff --git a/src/fake-api.h b/src/fake-api.h
index f38757f7..0973c37a 100644
--- a/src/fake-api.h
+++ b/src/fake-api.h
@@ -13,7 +13,7 @@
 
 #ifndef __WIN32__
 typedef unsigned int DWORD, UINT, *LPDWORD;
-typedef char BYTE, *LPCSTR, *LPCTSTR, *LPTSTR, *PBYTE;
+typedef char BYTE, *LPSTR, *LPCSTR, *LPCTSTR, *LPTSTR, *PBYTE;
 typedef short SHORT;
 typedef int LONG;
 typedef bool BOOL;
@@ -147,4 +147,7 @@ MKXP_GetPrivateProfileString(LPCTSTR lpAppName,
 PREFABI short
 MKXP_GetUserDefaultLangID(void);
 
+PREFABI BOOL
+MKXP_GetUserName(LPSTR lpBuffer, LPDWORD pcbBuffer);
+
 #endif