D56529.id175908.diff
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D56529.id175908.diff
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	diff --git a/lib/libsbuf/tests/sbuf_string_test.c b/lib/libsbuf/tests/sbuf_string_test.c
	--- a/lib/libsbuf/tests/sbuf_string_test.c
	+++ b/lib/libsbuf/tests/sbuf_string_test.c
	@@ -275,6 +275,43 @@

	sbuf_delete(sb);
	}
	+
	+
	+ATF_TC_WITHOUT_HEAD(sbuf_printf_overflow);
	+ATF_TC_BODY(sbuf_printf_overflow, tc)
	+{
	+ struct sbuf sb;
	+ char buf[10];
	+
	+ sbuf_new(&sb, buf, sizeof(buf), SBUF_FIXEDLEN);
	+ sbuf_printf(&sb, "this_string_is_too_long");
	+ sbuf_finish(&sb);
	+
	+ /* Validates that the data was safely truncated */
	+ ATF_CHECK_STREQ(buf, "this_stri");
	+ ATF_CHECK_EQ_MSG(-1, sbuf_len(&sb), "SBUF should be in error state (-1) after overflow");
	+ ATF_CHECK_EQ(ENOMEM, sbuf_error(&sb));
	+ sbuf_delete(&sb);
	+}
	+ATF_TC_WITHOUT_HEAD(sbuf_printf_test);
	+ATF_TC_BODY(sbuf_printf_test, tc)
	+{
	+ struct sbuf *sb;
	+ char buffer[10];
	+ int result;
	+
	+ sb = sbuf_new(NULL, buffer, sizeof(buffer), SBUF_FIXEDLEN);
	+ ATF_REQUIRE(sb != NULL);
	+
	+ result = sbuf_printf(sb, "exactly_15_chars");
	+
	+ /* Validates that the function reported the error correctly */
	+ ATF_REQUIRE_EQ_MSG(result, -1, "sbuf_printf failed to report overflow!");
	+ ATF_REQUIRE_MSG(sbuf_len(sb) < (int)sizeof(buffer), "Buffer overflow detected!");
	+
	+ sbuf_delete(sb);
	+}
	+

	ATF_TP_ADD_TCS(tp)
	{
	@@ -284,6 +321,9 @@
	ATF_TP_ADD_TC(tp, sbuf_cpy_test);
	ATF_TP_ADD_TC(tp, sbuf_putc_test);
	ATF_TP_ADD_TC(tp, sbuf_trim_test);
	+ ATF_TP_ADD_TC(tp, sbuf_printf_test);
	+ ATF_TP_ADD_TC(tp, sbuf_printf_overflow);
	+

	return (atf_no_error());
	}