1 files changed, 120 insertions, 0 deletions
diff --git a/src/misc/win_exec_wrapper.c b/src/misc/win_exec_wrapper.c
new file mode 100644
index 0000000..0e1e851
--- /dev/null
+++ b/src/misc/win_exec_wrapper.c
@@ -0,0 +1,120 @@
+/* $Id: win_exec_wrapper.c 3528 2021-12-19 16:32:38Z bird $ */
+/** @file
+ * win_exec_wrapper - Stub for exec'ing a kmk_xxx program.
+ */
+
+/*
+ * Copyright (c) 2021 knut st. osmundsen <bird-kBuild-spamixx@anduin.net>
+ *
+ * This file is part of kBuild.
+ *
+ * kBuild is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * kBuild is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with kBuild.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <windows.h>
+
+
+VOID __stdcall BareBoneStart(VOID)
+{
+    DWORD               dwIgnored;
+    PROCESS_INFORMATION ProcInfo        = { NULL, NULL, 0, 0 };
+    WCHAR               wszExec[260];
+    UINT                cwcExec         = GetModuleFileNameW(NULL, wszExec, 512);
+    BOOL                fExecOk         = FALSE;
+    WCHAR const * const pwszCommandLine = GetCommandLineW();
+    STARTUPINFOW        StartInfo       = { sizeof(StartInfo), NULL, NULL, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL};
+    GetStartupInfoW(&StartInfo);
+
+    /*
+     * Make sure we've got the standard handles.
+     */
+    StartInfo.hStdInput  = GetStdHandle(STD_INPUT_HANDLE);
+    StartInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
+    StartInfo.hStdError  = GetStdHandle(STD_ERROR_HANDLE);
+    StartInfo.dwFlags   |= STARTF_USESTDHANDLES;
+
+    /*
+     * Construct the executable path.
+     */
+    if (cwcExec > 10)
+    {
+        /* Strip the filename. */
+#define IS_SEP(a_wc) ( (a_wc) == '\\' || (a_wc) == ':' || (a_wc) == '\\' )
+        while (cwcExec > 3 && !IS_SEP(wszExec[cwcExec - 1]))
+            cwcExec--;
+        if (IS_SEP(wszExec[cwcExec - 1]))
+        {
+            /* Strip the separator. */
+            while (cwcExec > 3 && IS_SEP(wszExec[cwcExec - 1]))
+                cwcExec--;
+            if (!IS_SEP(wszExec[cwcExec - 1]))
+            {
+                /* Strip the path component: */
+                while (cwcExec > 3 && !IS_SEP(wszExec[cwcExec - 1]))
+                    cwcExec--;
+                if (IS_SEP(wszExec[cwcExec - 1]))
+                {
+                    /* Insert the target executable name: */
+                    static char const s_szTargetName[] = TARGET_EXE_NAME;
+                    unsigned off = 0;
+                    while (off < sizeof(s_szTargetName))
+                        wszExec[cwcExec++] = s_szTargetName[off++];
+                    fExecOk = cwcExec <= 260;
+                }
+            }
+        }
+    }
+    if (fExecOk)
+    {
+        /*
+         * Create the real process.
+         */
+        if (CreateProcessW(wszExec, (WCHAR *)pwszCommandLine, NULL, NULL, TRUE /*bInheritHandles*/,
+                           0 /*fFlags*/, NULL /*pwszzEnv*/, NULL /*pwszCwd*/, &StartInfo, &ProcInfo))
+        {
+            /*
+             * Wait for it to complete.
+             */
+            CloseHandle(ProcInfo.hThread);
+            for (;;)
+            {
+                DWORD dwExitCode = 1;
+                WaitForSingleObject(ProcInfo.hProcess, INFINITE);
+                if (GetExitCodeProcess(ProcInfo.hProcess, &dwExitCode))
+                    for (;;)
+                        ExitProcess(dwExitCode);
+                Sleep(1);
+            }
+        }
+        else
+        {
+            static const char s_szMsg[] = "error: CreateProcessW failed for " TARGET_EXE_NAME "\r\n";
+            WriteFile(StartInfo.hStdError, s_szMsg, sizeof(s_szMsg) - 1, &dwIgnored, NULL);
+        }
+    }
+    else
+    {
+        static const char s_szMsg[] = "error: path construction failed (" TARGET_EXE_NAME ")\r\n";
+        WriteFile(StartInfo.hStdError, s_szMsg, sizeof(s_szMsg) - 1, &dwIgnored, NULL);
+    }
+
+    for (;;)
+        ExitProcess(31);
+}
+