pathchk: build for Windows

Cargo.toml

@@ -131,6 +131,7 @@ feat_common_core = [
   "numfmt",
   "od",
   "paste",
+  "pathchk",
   "pr",
   "printenv",
   "printf",
@@ -198,6 +199,7 @@ feat_wasm = [
   "numfmt",
   "od",
   "paste",
+  "pathchk",
   "pr",
   "printenv",
   "printf",
@@ -287,7 +289,6 @@ feat_require_unix_core = [
   "mknod",
   "nice",
   "nohup",
-  "pathchk",
   "stat",
   "stty",
   "timeout",
@@ -316,7 +317,6 @@ feat_os_unix_fuchsia = [
   "mkfifo",
   "mknod",
   "nice",
-  "pathchk",
   "tty",
   "uname",
   "unlink",

src/uu/pathchk/src/pathchk.rs

@@ -33,6 +33,20 @@ mod options {
 const POSIX_PATH_MAX: usize = 256;
 const POSIX_NAME_MAX: usize = 14;
 
+#[cfg(all(unix, not(target_os = "redox")))]
+const PATH_MAX: usize = libc::PATH_MAX as usize;
+#[cfg(all(unix, not(target_os = "redox")))]
+const FILENAME_MAX: usize = libc::FILENAME_MAX as usize;
+#[cfg(target_os = "redox")]
+const PATH_MAX: usize = 4096;
+#[cfg(target_os = "redox")]
+const FILENAME_MAX: usize = 255;
+// for Windows. But don't deny wasm
+#[cfg(not(unix))]
+const PATH_MAX: usize = 260;
+#[cfg(not(unix))]
+const FILENAME_MAX: usize = 255;
+
 #[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
@@ -193,11 +207,11 @@ fn check_default(path: &[String]) -> bool {
     let joined_path = path.join("/");
     let total_len = joined_path.len();
     // path length
-    if total_len > libc::PATH_MAX as usize {
+    if total_len > PATH_MAX {
         writeln!(
             std::io::stderr(),
             "{}",
-            translate!("pathchk-error-path-length-exceeded", "limit" => libc::PATH_MAX, "length" => total_len, "path" => joined_path.quote())
+            translate!("pathchk-error-path-length-exceeded", "limit" => PATH_MAX, "length" => total_len, "path" => joined_path.quote())
         );
         return false;
     }
@@ -219,11 +233,11 @@ fn check_default(path: &[String]) -> bool {
     // components: length
     for p in path {
         let component_len = p.len();
-        if component_len > libc::FILENAME_MAX as usize {
+        if component_len > FILENAME_MAX {
             writeln!(
                 std::io::stderr(),
                 "{}",
-                translate!("pathchk-error-name-length-exceeded", "limit" => libc::FILENAME_MAX, "length" => component_len, "component" => p.quote())
+                translate!("pathchk-error-name-length-exceeded", "limit" => FILENAME_MAX, "length" => component_len, "component" => p.quote())
             );
             return false;
         }

tests/by-util/test_pathchk.rs

@@ -4,9 +4,11 @@
 // file that was distributed with this source code.
 #[cfg(target_os = "linux")]
 use std::os::unix::ffi::OsStringExt;
+#[cfg(unix)]
 use uutests::new_ucmd;
 
 #[test]
+#[cfg(unix)]
 fn test_no_args() {
     new_ucmd!()
         .fails()
@@ -15,11 +17,13 @@ fn test_no_args() {
 }
 
 #[test]
+#[cfg(unix)]
 fn test_invalid_arg() {
     new_ucmd!().arg("--definitely-invalid").fails_with_code(1);
 }
 
 #[test]
+#[cfg(unix)]
 fn test_default_mode() {
     // accept some reasonable default
     new_ucmd!().args(&["dir/file"]).succeeds().no_stdout();
@@ -55,6 +59,7 @@ fn test_default_mode() {
 }
 
 #[test]
+#[cfg(unix)]
 fn test_posix_mode() {
     // accept some reasonable default
     new_ucmd!().args(&["-p", "dir/file"]).succeeds().no_stdout();
@@ -79,6 +84,7 @@ fn test_posix_mode() {
 }
 
 #[test]
+#[cfg(unix)]
 fn test_posix_special() {
     // accept some reasonable default
     new_ucmd!().args(&["-P", "dir/file"]).succeeds().no_stdout();
@@ -118,6 +124,7 @@ fn test_posix_special() {
 }
 
 #[test]
+#[cfg(unix)]
 fn test_posix_all() {
     // accept some reasonable default
     new_ucmd!()