From 40c80f07509ee2402ad48bb49fa22f8afc7edf82 Mon Sep 17 00:00:00 2001 From: Chris Denton Date: Sat, 3 Sep 2022 07:15:08 +0100 Subject: [PATCH] Restore old behaviour on broken UNC paths --- std/src/sys/windows/path.rs | 9 +-------- std/src/sys/windows/path/tests.rs | 29 +++++++++++++++++++---------- 2 files changed, 20 insertions(+), 18 deletions(-) diff --git a/std/src/sys/windows/path.rs b/std/src/sys/windows/path.rs index a0f822070..beeca1917 100644 --- a/std/src/sys/windows/path.rs +++ b/std/src/sys/windows/path.rs @@ -198,14 +198,7 @@ fn parse_next_component(path: &OsStr, verbatim: bool) -> (&OsStr, &OsStr) { match path.bytes().iter().position(|&x| separator(x)) { Some(separator_start) => { - let mut separator_end = separator_start + 1; - - // a series of multiple separator characters is treated as a single separator, - // except in verbatim paths - while !verbatim && separator_end < path.len() && separator(path.bytes()[separator_end]) - { - separator_end += 1; - } + let separator_end = separator_start + 1; let component = &path.bytes()[..separator_start]; diff --git a/std/src/sys/windows/path/tests.rs b/std/src/sys/windows/path/tests.rs index a71175069..623c62361 100644 --- a/std/src/sys/windows/path/tests.rs +++ b/std/src/sys/windows/path/tests.rs @@ -31,16 +31,6 @@ fn test_parse_next_component() { parse_next_component(OsStr::new(r"servershare"), false), (OsStr::new(r"servershare"), OsStr::new("")) ); - - assert_eq!( - parse_next_component(OsStr::new(r"server/\//\/\\\\/////\/share"), false), - (OsStr::new(r"server"), OsStr::new(r"share")) - ); - - assert_eq!( - parse_next_component(OsStr::new(r"server\\\\\\\\\\\\\\share"), true), - (OsStr::new(r"server"), OsStr::new(r"\\\\\\\\\\\\\share")) - ); } #[test] @@ -126,3 +116,22 @@ fn test_windows_prefix_components() { assert_eq!(drive.as_os_str(), OsStr::new("C:")); assert_eq!(components.as_path(), Path::new("")); } + +/// See #101358. +/// +/// Note that the exact behaviour here may change in the future. +/// In which case this test will need to adjusted. +#[test] +fn broken_unc_path() { + use crate::path::Component; + + let mut components = Path::new(r"\\foo\\bar\\").components(); + assert_eq!(components.next(), Some(Component::RootDir)); + assert_eq!(components.next(), Some(Component::Normal("foo".as_ref()))); + assert_eq!(components.next(), Some(Component::Normal("bar".as_ref()))); + + let mut components = Path::new("//foo//bar//").components(); + assert_eq!(components.next(), Some(Component::RootDir)); + assert_eq!(components.next(), Some(Component::Normal("foo".as_ref()))); + assert_eq!(components.next(), Some(Component::Normal("bar".as_ref()))); +}