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Foundation.Process on Linux throws error Error Domain=NSCocoaErrorDomain Code=256 "(null)" if executable not found #4810

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weissi opened this issue Aug 15, 2023 · 1 comment
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Foundation.Process on Linux throws error Error Domain=NSCocoaErrorDomain Code=256 "(null)" if executable not found #4810

weissi opened this issue Aug 15, 2023 · 1 comment
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@iCharlesHu
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@weissi
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weissi commented Aug 15, 2023

When creating a Process with executableURL set to a file that doesn't exist, it throws

Error Domain=NSCocoaErrorDomain Code=256 "(null)"

which corresponds to an NSError with domain: NSCocoaErrorDomain (correct) and code: NSFileReadUnknownError (== 256`, incorrect).

Darwin systems have the correct

Error Domain=NSCocoaErrorDomain Code=4 "The file “exist” doesn’t exist." UserInfo={NSFilePath=/dev/null/does/not/exist}

which is code: NSFileNoSuchFileError (== 4).
@weissi weissi added the bug label Aug 15, 2023
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weissi commented Aug 15, 2023

Apple folk: This is rdar://113899085 .

@iCharlesHu iCharlesHu self-assigned this Sep 18, 2024
MaxDesiatov added a commit to swiftlang/swift-sdk-generator that referenced this issue Nov 27, 2024
@MaxDesiatov
Update AsyncProcess with bug fixes
709a31a 
Namely, this works around following issues in `Foundation.Process`:
 - "Foundation.Process on Linux throws error Error Domain=NSCocoaErrorDomain Code=256 "(null)" if executable not found"
   swiftlang/swift-corelibs-foundation#4810
 - "Foundation.Process on Linux doesn't correctly detect when child process dies (creating zombie processes)"
   swiftlang/swift-corelibs-foundation#4795
 - "Foundation.Process on Linux seems to inherit the Process.run()-calling thread's signal mask, even SIGTERM blocked"
   swiftlang/swift-corelibs-foundation#4772
@MaxDesiatov MaxDesiatov mentioned this issue Nov 27, 2024
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