Apparently, both load_image() and exec*() support running scripts. We do that

now as well.
Also, both functions will now test if the executable exists and is valid; that
way, load_image()/exec*() can catch many errors without having to create a new
team (or erase the current one - an exec*("my invalid app") might now return
with an error).
The runtime linker now exports a function to test executables that is aware
of the search paths, and will also check user permissions upfront.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13113 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/user_runtime.h

@@ -1,13 +1,18 @@
 /*
-** Copyright 2002, Manuel J. Petit. All rights reserved.
-** Distributed under the terms of the NewOS License.
-*/
+ * Copyright 2003-2005, Axel Dörfler, [email protected].
+ * Distributed under the terms of the MIT License.
+ *
+ * Copyright 2002, Manuel J. Petit. All rights reserved.
+ * Distributed under the terms of the NewOS License.
+ */
 #ifndef KERNEL_USER_RUNTIME_H_
 #define KERNEL_USER_RUNTIME_H_
 
+
 #include <image.h>
 #include <OS.h>
 
+
 #define MAGIC_APP_NAME	"_APP_"
 
 struct rld_export {
@@ -18,6 +23,8 @@ struct rld_export {
 		int32 symbolType, void **_location);
 	status_t (*get_nth_image_symbol)(image_id imageID, int32 num, char *symbolName,
 		int32 *nameLength, int32 *symbolType, void **_location);
+	status_t (*test_executable)(const char *path, uid_t user, gid_t group,
+		char *starter);
 };
 
 struct uspace_program_args {
@@ -34,6 +41,4 @@ struct uspace_program_args {
 	struct rld_export *rld_export;
 };
 
-typedef void (libinit_f)(unsigned, struct uspace_program_args const *);
-
 #endif	/* KERNEL_USER_RUNTIME_H_ */