Given the following code containing errors, provide Common Weakness Enumeration (CWE) identifiers and corresponding messages in JSON format. Each identified weakness should have a unique entry in the JSON array.
    Code: results_differ(const char *testname, const char *resultsfile, const char *default_expectfile)
{
	char		expectfile[MAXPGPATH];
	char		diff[MAXPGPATH];
	char		cmd[MAXPGPATH * 3];
	char		best_expect_file[MAXPGPATH];
	FILE	   *difffile;
	int			best_line_count;
	int			i;
	int			l;
	const char *platform_expectfile;

	/*
	 * We can pass either the resultsfile or the expectfile, they should have
	 * the same type (filename.type) anyway.
	 */
	platform_expectfile = get_expectfile(testname, resultsfile);

	strcpy(expectfile, default_expectfile);
	if (platform_expectfile)
	{
		/*
		 * Replace everything afer the last slash in expectfile with what the
		 * platform_expectfile contains.
		 */
		char	   *p = strrchr(expectfile, '/');

		if (p)
			strcpy(++p, platform_expectfile);
	}

	/* Name to use for temporary diff file */
	snprintf(diff, sizeof(diff), "%s.diff", resultsfile);

	/* OK, run the diff */
	snprintf(cmd, sizeof(cmd),
			 SYSTEMQUOTE "diff %s \"%s\" \"%s\" > \"%s\"" SYSTEMQUOTE,
			 basic_diff_opts, expectfile, resultsfile, diff);

	/* Is the diff file empty? */
	if (run_diff(cmd, diff) == 0)
	{
		unlink(diff);
		return false;
	}

	/* There may be secondary comparison files that match better */
	best_line_count = file_line_count(diff);
	strcpy(best_expect_file, expectfile);

	for (i = 0; i <= 9; i++)
	{
		char	   *alt_expectfile;

		alt_expectfile = get_alternative_expectfile(expectfile, i);
		if (!file_exists(alt_expectfile))
			continue;

		snprintf(cmd, sizeof(cmd),
				 SYSTEMQUOTE "diff %s \"%s\" \"%s\" > \"%s\"" SYSTEMQUOTE,
				 basic_diff_opts, alt_expectfile, resultsfile, diff);

		if (run_diff(cmd, diff) == 0)
		{
			unlink(diff);
			return false;
		}

		l = file_line_count(diff);
		if (l < best_line_count)
		{
			/* This diff was a better match than the last one */
			best_line_count = l;
			strcpy(best_expect_file, alt_expectfile);
		}
		free(alt_expectfile);
	}

	/*
	 * fall back on the canonical results file if we haven't tried it yet and
	 * haven't found a complete match yet.
	 */

	if (platform_expectfile)
	{
		snprintf(cmd, sizeof(cmd),
				 SYSTEMQUOTE "diff %s \"%s\" \"%s\" > \"%s\"" SYSTEMQUOTE,
				 basic_diff_opts, default_expectfile, resultsfile, diff);

		if (run_diff(cmd, diff) == 0)
		{
			/* No diff = no changes = good */
			unlink(diff);
			return false;
		}

		l = file_line_count(diff);
		if (l < best_line_count)
		{
			/* This diff was a better match than the last one */
			best_line_count = l;
			strcpy(best_expect_file, default_expectfile);
		}
	}

	/*
	 * Use the best comparison file to generate the "pretty" diff, which we
	 * append to the diffs summary file.
	 */
	snprintf(cmd, sizeof(cmd),
			 SYSTEMQUOTE "diff %s \"%s\" \"%s\" >> \"%s\"" SYSTEMQUOTE,
			 pretty_diff_opts, best_expect_file, resultsfile, difffilename);
	run_diff(cmd, difffilename);

	/* And append a separator */
	difffile = fopen(difffilename, "a");
	if (difffile)
	{
		fprintf(difffile,
				"\n======================================================================\n\n");
		fclose(difffile);
	}

	unlink(diff);
	return true;
} ; Sample JSON Format Confermily Expected output: "examples" => "cwe": "xxx"; "message": "xxx"
    
 'cwe': ['CWE-119'], 'message': 'Prevent potential overruns of fixed-size buffers.

Coverity identified a number of places in which it couldn't prove that a
string being copied into a fixed-size buffer would fit.  We believe that
most, perhaps all of these are in fact safe, or are copying data that is
coming from a trusted source so that any overrun is not really a security
issue.  Nonetheless it seems prudent to forestall any risk by using
strlcpy() and similar functions.

Fixes by Peter Eisentraut and Jozef Mlich based on Coverity reports.

In addition, fix a potential null-pointer-dereference crash in
contrib/chkpass.  The crypt(3) function is defined to return NULL on
failure, but chkpass.c didn't check for that before using the result.
The main practical case in which this could be an issue is if libc is
configured to refuse to execute unapproved hashing algorithms (e.g.,
"FIPS mode").  This ideally should've been a separate commit, but
since it touches code adjacent to one of the buffer overrun changes,
I included it in this commit to avoid last-minute merge issues.
This issue was reported by Honza Horak.

Security: CVE-2014-0065 for buffer overruns, CVE-2014-0066 for crypt()'