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1 #![cfg(windows)]
2 extern crate libloading;
3 use libloading::os::windows::*;
4 use std::ffi::CStr;
5 use std::os::raw::c_void;
6 // The ordinal DLL contains exactly one function (other than DllMain, that is) with ordinal number
7 // 1. This function has the sugnature `fn() -> *const c_char` and returns a string "bunny\0" (in
8 // reference to WindowsBunny).
9 //
10 // Both x86_64 and x86 versions of the .dll are functionally the same. Ideally we would compile the
11 // dlls with well known ordinals from our own testing helpers library, but rustc does not allow
12 // specifying a custom .def file (https://github.com/rust-lang/rust/issues/35089)
13 //
14 // The DLLs were kindly compiled by WindowsBunny (aka. @retep998).
15 
16 #[cfg(target_arch="x86")]
load_ordinal_lib() -> Library17 fn load_ordinal_lib() -> Library {
18     unsafe {
19         Library::new("tests/nagisa32.dll").expect("nagisa32.dll")
20     }
21 }
22 
23 #[cfg(target_arch="x86_64")]
load_ordinal_lib() -> Library24 fn load_ordinal_lib() -> Library {
25     unsafe {
26         Library::new("tests/nagisa64.dll").expect("nagisa64.dll")
27     }
28 }
29 
30 #[cfg(any(target_arch="x86", target_arch="x86_64"))]
31 #[test]
test_ordinal()32 fn test_ordinal() {
33     let lib = load_ordinal_lib();
34     unsafe {
35         let windows: Symbol<unsafe fn() -> *const i8> = lib.get_ordinal(1).expect("function");
36         assert_eq!(CStr::from_ptr(windows()).to_bytes(), b"bunny");
37     }
38 }
39 
40 #[cfg(any(target_arch="x86", target_arch="x86_64"))]
41 #[test]
test_try_into_ptr()42 fn test_try_into_ptr() {
43     let lib = load_ordinal_lib();
44     unsafe {
45         let windows: Symbol<unsafe fn() -> *const i8> = lib.get_ordinal(1).expect("function");
46         let ptr : *mut c_void = windows.as_raw_ptr();
47         assert!(!ptr.is_null());
48     }
49 }
50 
51 #[cfg(any(target_arch="x86", target_arch="x86_64"))]
52 #[test]
test_ordinal_missing_fails()53 fn test_ordinal_missing_fails() {
54     let lib = load_ordinal_lib();
55     unsafe {
56         let r: Result<Symbol<unsafe fn() -> *const i8>, _> = lib.get_ordinal(2);
57         r.err().unwrap();
58         let r: Result<Symbol<unsafe fn() -> *const i8>, _> = lib.get_ordinal(!0);
59         r.err().unwrap();
60     }
61 }
62 
63 #[test]
test_new_kernel23()64 fn test_new_kernel23() {
65     unsafe {
66         Library::new("kernel23").err().unwrap();
67     }
68 }
69 
70 #[test]
test_new_kernel32_no_ext()71 fn test_new_kernel32_no_ext() {
72     unsafe {
73         Library::new("kernel32").unwrap();
74     }
75 }
76