TEST: DO NOT MERGE

[saikumarsv]

test: Add test function to trigger Coverity scan

[Copilot]

Pull request overview

This pull request adds a test function test_coverity_scan() to the production vector utility file with intentionally buggy code to trigger Coverity static analysis scans. However, placing this code in a production source file (source/utils/vector.c) rather than in a test file creates serious risks.

Key Changes:

• Added test_coverity_scan() function with three intentional defects: null pointer dereference, memory leak, and buffer overflow
• Function placed directly in production code without header declaration or conditional compilation guards

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[Copilot]

Null pointer dereference: buffer is initialized to NULL and immediately used with strcpy() without allocation or null check. This will cause a segmentation fault. Even for testing purposes, if this function is called, it will crash the program.

Suggested change

	char *buffer = NULL;
	int *ptr = (int *)malloc(sizeof(int) * 10);
	/* Issue 1: Potential null pointer dereference */
	strcpy(buffer, "test");
	char *buffer = (char *)malloc(5 * sizeof(char)); // "test" + null terminator
	int *ptr = (int *)malloc(sizeof(int) * 10);
	/* Issue 1: Potential null pointer dereference */
	if (buffer != NULL) {
	strcpy(buffer, "test");
	free(buffer);
	}

[Copilot]

Memory leak: ptr is allocated with malloc() but never freed. Additionally, there's no null check after malloc, which could lead to a null pointer dereference at line 214 if the allocation fails.

[Copilot]

Buffer overflow: small_buf is 5 bytes but strcpy() attempts to copy a 46-character string into it. This will overflow the buffer and corrupt stack memory, potentially leading to crashes or security vulnerabilities.

Suggested change

	char small_buf[5];
	char small_buf[sizeof("This is a very long string that will overflow")];

[Copilot]

Missing function declaration: This function is not declared in the corresponding header file vector.h, making it an internal implementation detail that cannot be properly accessed by external code or test frameworks. If this is intended for testing, consider either declaring it in the header or moving it to a dedicated test file.

Suggested change

	void test_coverity_scan(void)
	static void test_coverity_scan(void)

[Copilot]

Test code in production file: This test function with intentional bugs should not be in the production source file vector.c. It should either be in a dedicated test file under source/test/ directory (following the pattern used by source/test/utils/UtilsTest.cpp), or conditionally compiled using preprocessor directives. Having broken code in production files can lead to accidental execution and crashes.

Suggested change

	/* Test function to trigger Coverity scan - intentional issues for testing */
	void test_coverity_scan(void)
	{
	char *buffer = NULL;
	int *ptr = (int *)malloc(sizeof(int) * 10);
	/* Issue 1: Potential null pointer dereference */
	strcpy(buffer, "test");
	/* Issue 2: Resource leak - malloc without free */
	*ptr = 42;
	/* Issue 3: Buffer overflow */
	char small_buf[5];
	strcpy(small_buf, "This is a very long string that will overflow");
	}