c++
// Patch 1:  Bounds Checking on Write Operations 
int zgfx_decompress(// ... parameters) {
    // ... other code ...

    // Inside a loop or conditional where data is written to 'sbuffer'
    if (current_write_position + bytes_to_write > sbuffer_size) {
        // Handle the error: Resize sbuffer, return an error code, etc. 
    } else {
        // Safe to write to sbuffer 
    }
    // ... other code ... 
} 

// Patch 2: Using Safe Memory Functions (e.g., strncpy, memcpy with size limits)
int zgfx_decompress(// ... parameters) {
    // ... other code ...

    // Instead of potentially unsafe functions like strcpy or memcpy:
    strncpy(destination_in_sbuffer, source_data, sbuffer_size - current_write_position);

    // ... other code ... 
}

// Patch 3: Dynamic Memory Allocation Based on Source Size 
int zgfx_decompress(// ... parameters) {
    // ... other code ...

    // Calculate required buffer size based on 'SrcSize' 
    size_t required_sbuffer_size = calculate_required_size(SrcSize);

    // Allocate 'sbuffer' dynamically 
    wStream* sbuffer = (wStream*)malloc(required_sbuffer_size); 
    if (sbuffer == NULL) { 
        // Handle allocation error
    }

    // ... other code (ensure to free(sbuffer) before returning) ... 
} 

// Patch 4:  Using a Circular Buffer Implementation for 'sbuffer'
// This can be useful if you need to handle continuous data streams 
int zgfx_decompress(// ... parameters) {
    // ... other code ...

    // Implement logic to write to the circular buffer (sbuffer) 
    write_to_circular_buffer(&sbuffer, source_data, bytes_to_write);

    // ... other code ... 
} 

// Patch 5:  Input Validation: Limiting 'SrcSize' to a Safe Maximum
// If possible, restrict the maximum allowed input size 
int zgfx_decompress(// ... parameters) {
    // ... other code ...

    if (SrcSize > MAX_ALLOWED_SRC_SIZE) {
        // Handle error:  Return error code, truncate data, etc.
    }

    // ... other code ... 
} 
