[PATCH v4 3/3] shell32: Restore the ability of running native unix programs with ShellExecute

[Yuxuan Shui]

From: Yuxuan Shui

For ShellExecute, if the specified file is found, we will try running it anyway, even if it doesn't
have a "program" extension.

Windows associations will take precedence over this.
---
 dlls/shell32/shlexec.c       | 18 ++++++++++++++++--
 dlls/shell32/tests/shlexec.c |  5 ++++-
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/dlls/shell32/shlexec.c b/dlls/shell32/shlexec.c
index 9704f9d8f06..64ede5f3a71 100644
--- a/dlls/shell32/shlexec.c
+++ b/dlls/shell32/shlexec.c
@@ -579,6 +579,7 @@ static UINT SHELL_FindExecutableByVerb(LPCWSTR lpVerb, LPWSTR key, LPWSTR classn
  *
  * Utility for code sharing between FindExecutable and ShellExecute
  * in:
+ *      lpPath the path to search for the file
  *      lpFile the name of a file
  *      lpVerb the operation on it (open)
  * out:
@@ -639,6 +640,7 @@ static UINT SHELL_FindExecutable(LPCWSTR lpPath, LPCWSTR lpFile, LPCWSTR lpVerb,
     {
         TRACE("PathResolveAW returned non-zero\n");
         lpFile = xlpFile;
+        lstrcpyW(lpResult, xlpFile);
         /* The file was found in lpPath or one of the directories in the system-wide search path */
     }
     else
@@ -696,7 +698,6 @@ static UINT SHELL_FindExecutable(LPCWSTR lpPath, LPCWSTR lpFile, LPCWSTR lpVerb,

if (wcsicmp(tok, &extension[1]) == 0) /* have to skip the leading "." */
                 {
-                    lstrcpyW(lpResult, xlpFile);
                     /* Need to perhaps check that the file has a path
                      * attached */
                     TRACE("found %s\n", debugstr_w(lpResult));
@@ -781,7 +782,7 @@ static UINT SHELL_FindExecutable(LPCWSTR lpPath, LPCWSTR lpFile, LPCWSTR lpVerb,
         }
     }

-    TRACE("returning %s\n", debugstr_w(lpResult));
+    TRACE("returning path %s, retval %d\n", debugstr_w(lpResult), retval);
     return retval;
 }

@@ -1885,6 +1886,19 @@ static BOOL SHELL_execute( LPSHELLEXECUTEINFOW sei, SHELL_ExecuteW32 execfunc )
         lstrcatW(lpstrTmpFile, lpFile);
         retval = (UINT_PTR)ShellExecuteW(sei_tmp.hwnd, sei_tmp.lpVerb, lpstrTmpFile, NULL, NULL, 0);
     }
+    else if (retval == SE_ERR_NOASSOC)
+    {
+        /* File found, but no association. And no other cases fit, this could be a
+           unix programs, try running it. */
+        UINT exec_retval;
+        FIXME("No association found, trying as Unix binary %s\n", debugstr_w(wcmd));
+        exec_retval = SHELL_quote_and_execute( wcmd, wszParameters, wszKeyname,
+                                                    wszApplicationName, env, &sei_tmp,
+                                                    sei, execfunc );
+        FIXME("Unix binary returned %u\n", exec_retval);
+        if (exec_retval > 32)
+            retval = exec_retval;
+    }

end:
     TRACE("retval %Iu\n", retval);
diff --git a/dlls/shell32/tests/shlexec.c b/dlls/shell32/tests/shlexec.c
index 0f537d829f4..6969846687a 100644
--- a/dlls/shell32/tests/shlexec.c
+++ b/dlls/shell32/tests/shlexec.c
@@ -2330,8 +2330,11 @@ static void test_exes(void)
         sprintf(filename, "%s\test file.noassoc", tmpdir);
         if (CopyFileA(argv0, filename, FALSE))
         {
+            /* Because of wine's unix integration, we will try running "test file.noassoc" because
+             * it could be a unix program. And it will succeed because it happens to be a valid PE.
+             */
             rc=shell_execute(NULL, filename, params, NULL);
-            okShell(rc==SE_ERR_NOASSOC, "returned %Iu\n", rc);
+            todo_wine okShell(rc==SE_ERR_NOASSOC, "returned %Iu\n", rc);
         }
     }
     else