Mailing List Archive

I've verified that the tests matches libbsd's strlcat()/strlcpy()
implementation.

Please note that as strlcat()/strlcpy() are not part of the libc, the
tests are only compiled when using nolibc.

Signed-off-by: Rodrigo Campos <rodrigo@sdfg.com.ar>
---
tools/testing/selftests/nolibc/nolibc-test.c | 40 ++++++++++++++++++++
1 file changed, 40 insertions(+)

diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index 6ba4f8275ac4..d373fc14706c 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -600,6 +600,25 @@ int expect_strne(const char *expr, int llen, const char *cmp)
return ret;
}

+#define EXPECT_STRBUFEQ(cond, expr, buf, val, cmp) \
+ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_str_buf_eq(expr, buf, val, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_str_buf_eq(size_t expr, const char *buf, size_t val, int llen, const char *cmp)
+{
+ llen += printf(" = %lu <%s> ", expr, buf);
+ if (strcmp(buf, cmp) != 0) {
+ result(llen, FAIL);
+ return 1;
+ }
+ if (expr != val) {
+ result(llen, FAIL);
+ return 1;
+ }
+
+ result(llen, OK);
+ return 0;
+}

/* declare tests based on line numbers. There must be exactly one test per line. */
#define CASE_TEST(name) \
@@ -991,6 +1010,14 @@ int run_stdlib(int min, int max)
for (test = min; test >= 0 && test <= max; test++) {
int llen = 0; /* line length */

+ /* For functions that take a long buffer, like strlcat()
+ * Add some more chars after the \0, to test functions that overwrite the buffer set
+ * the \0 at the exact right position.
+ */
+ char buf[10] = "test123456";
+ buf[4] = '\0';
+
+
/* avoid leaving empty lines below, this will insert holes into
* test numbers.
*/
@@ -1007,6 +1034,19 @@ int run_stdlib(int min, int max)
CASE_TEST(strchr_foobar_z); EXPECT_STRZR(1, strchr("foobar", 'z')); break;
CASE_TEST(strrchr_foobar_o); EXPECT_STREQ(1, strrchr("foobar", 'o'), "obar"); break;
CASE_TEST(strrchr_foobar_z); EXPECT_STRZR(1, strrchr("foobar", 'z')); break;
+#ifdef NOLIBC
+ CASE_TEST(strlcat_0); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 0), buf, 3, "test"); break;
+ CASE_TEST(strlcat_1); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 1), buf, 4, "test"); break;
+ CASE_TEST(strlcat_5); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 5), buf, 7, "test"); break;
+ CASE_TEST(strlcat_6); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 6), buf, 7, "testb"); break;
+ CASE_TEST(strlcat_7); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 7), buf, 7, "testba"); break;
+ CASE_TEST(strlcat_8); EXPECT_STRBUFEQ(1, strlcat(buf, "bar", 8), buf, 7, "testbar"); break;
+ CASE_TEST(strlcpy_0); EXPECT_STRBUFEQ(1, strlcpy(buf, "bar", 0), buf, 3, "test"); break;
+ CASE_TEST(strlcpy_1); EXPECT_STRBUFEQ(1, strlcpy(buf, "bar", 1), buf, 3, ""); break;
+ CASE_TEST(strlcpy_2); EXPECT_STRBUFEQ(1, strlcpy(buf, "bar", 2), buf, 3, "b"); break;
+ CASE_TEST(strlcpy_3); EXPECT_STRBUFEQ(1, strlcpy(buf, "bar", 3), buf, 3, "ba"); break;
+ CASE_TEST(strlcpy_4); EXPECT_STRBUFEQ(1, strlcpy(buf, "bar", 4), buf, 3, "bar"); break;
+#endif
CASE_TEST(memcmp_20_20); EXPECT_EQ(1, memcmp("aaa\x20", "aaa\x20", 4), 0); break;
CASE_TEST(memcmp_20_60); EXPECT_LT(1, memcmp("aaa\x20", "aaa\x60", 4), 0); break;
CASE_TEST(memcmp_60_20); EXPECT_GT(1, memcmp("aaa\x60", "aaa\x20", 4), 0); break;
--
2.43.0