Fix memory safety issues #2
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Related to #1 Address memory safety issues in `addcomment.c`. * **Memory Allocation Check**: Add a check for `malloc` returning `NULL` in the `udcd` function to prevent dereferencing a `NULL` pointer. * **Memory Deallocation**: Free the allocated memory after use in the `udcd` function to prevent memory leaks. * **Buffer Overflow Prevention**: Add a check to ensure the input length does not exceed the buffer size before using `fread`. * **Input Length Check**: Modify the `sscanf` function to check the length of input strings to prevent buffer overflows. * **Error Handling**: Add error handling for memory allocation failures and free allocated memory in case of errors. --- For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/gtlsgamr/addcomment.c/issues/1?shareId=XXXX-XXXX-XXXX-XXXX).
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Related to #1
Address memory safety issues in
addcomment.c.mallocreturningNULLin theudcdfunction to prevent dereferencing aNULLpointer.udcdfunction to prevent memory leaks.fread.sscanffunction to check the length of input strings to prevent buffer overflows.For more details, open the Copilot Workspace session.