zsh bus error on C code under Monterey

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bobscott Author

Level 1

11 points

zsh bus error on C code under Monterey

I have some C99 code that worked fine under Catalina in XCODE and in TERMINAL

The code opens an existing file and reads the content to EOF

The code the creates a file and writes a standard message to the created file

I migrated to a new Macbook Pro with Monterey... and the same code

always displays the correct file name to open but then fails to open it, displaying

a NULL FILE pointer and "zsh: bus error" with the full program pathname

The code is executing under TERMINAL and the code executable an file are in the same folder

Posted on Sep 26, 2022 6:53 AM

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Answer 1

Sep 26, 2022 7:39 AM in response to bobscott

Without seeing the code, we can't be sure, but I suspect it may be something with the ever more stringent security rules.

Are the code and the file in an external drive? Somewhere in a folder inside or home drive?

FWIW, I had no trouble making a short program that opens and writes to a file.

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Answer 2

bobscott Author

Level 1

11 points

Sep 26, 2022 2:46 PM in response to Luis Sequeira1

Replying again.... the executable and the files are all in the folder Desktop/ENIGMA/... I've tried null paths and all possible paths to this folder... the file I create and write to still works; however, the pre-existing file I try to open in order to read returns a NULL pointer to

"FILE pointer = open( filename, "r");.... the the zsh: bus error.

I'll executable and all files on a thumb drive to see how that works.

--Scott

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Answer 3

Barney-15E

Level 10

122,240 points

Sep 26, 2022 5:06 PM in response to bobscott

Replying again.... the executable and the files are all in the folder Desktop/ENIGMA/... I've tried null paths and all possible paths to this folder...

If it never asked you for permission, then it is likely getting a null pointer because it doesn't have access to those files.

You could try giving the app Full Disk Access in Security & Privacy system preferences.

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zsh bus error on C code under Monterey

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