Replace static buffer with dynamic allocation in writercwtdata()
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@ananyaaa66 is already working on this.
Since Feb 23, 2026.
Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 35/100
Research direction
Start in src/lib_ccx/output.c at writercwtdata() and the cbbuffer declaration around line 156. Review the function's current buffer use and existing allocation and error-handling patterns before changing it. Done means the buffer is allocated only when needed, allocation failures are handled, debug logging is added as described, and external behavior is unchanged.
Written by the indexing model from the issue text.
Description
Description
The writercwtdata() function in src/lib_ccx/output.c currently uses a static array for the cbbuffer variable. There's a TODO comment requesting to replace this with dynamic memory allocation using malloc.
File: src/lib_ccx/output.c
Line: ~156
Function: writercwtdata()
Current Implementation
static unsigned char cbbuffer[0xFFFF * 3]; // TODO: use malloc
Proposed Change
Replace the static array with dynamically allocated memory to:
- Improve memory efficiency
- Follow modern C best practices
- Only allocate memory when the function is actually used
Benefits
- Memory is only allocated when needed
- Better resource management
- Maintains backward compatibility
- No change to external behavior
Implementation Plan
I'm working on a PR that will:
- Convert
cbbufferfrom static array to dynamically allocated pointer - Allocate memory on first use of the function
- Add proper error handling for allocation failures
- Add debug logging for buffer allocation
- Dominant language
- C
- Stars
- 901
- Forks
- 592
- Avg merge
- 7d 23h
- Merged PRs (30d)
- 11
Getting set up
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- Read the contributing guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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