From: Dmitry Safonov <0x7f454c46@xxxxxxxxx>
Re-invented std::stringstream :-)
No need for buffer array - malloc() it.
It's going to be helpful of path concat printings.
Signed-off-by: Dmitry Safonov <0x7f454c46@xxxxxxxxx>
---
tools/testing/selftests/net/tcp_ao/lib/aolib.h | 56 ++++++++++++++++++++++----
1 file changed, 49 insertions(+), 7 deletions(-)
diff --git a/tools/testing/selftests/net/tcp_ao/lib/aolib.h b/tools/testing/selftests/net/tcp_ao/lib/aolib.h
index fbc7f6111815..fdf44d176e0b 100644
--- a/tools/testing/selftests/net/tcp_ao/lib/aolib.h
+++ b/tools/testing/selftests/net/tcp_ao/lib/aolib.h
@@ -37,17 +37,59 @@ extern void __test_xfail(const char *buf);
extern void __test_error(const char *buf);
extern void __test_skip(const char *buf);
+static inline char *test_snprintf(const char *fmt, va_list vargs)
+{
+ char *ret = NULL;
+ size_t size = 0;
+ va_list tmp;
+ int n = 0;
+
+ va_copy(tmp, vargs);
+ n = vsnprintf(ret, size, fmt, tmp);
+ if (n < 0)
+ return NULL;
+
+ size = (size_t) n + 1;
+ ret = malloc(size);
+ if (ret == NULL)
+ return NULL;
+
+ n = vsnprintf(ret, size, fmt, vargs);
+ if (n < 0 || n > size - 1) {
+ free(ret);
+ return NULL;
+ }
+ return ret;
+}
+
+__attribute__((__format__(__printf__, 1, 2)))
+static inline char *test_sprintf(const char *fmt, ...)
+{
+ va_list vargs;
+ char *ret;
+
+ va_start(vargs, fmt);
+ ret = test_snprintf(fmt, vargs);
+ va_end(vargs);
+
+ return ret;
+}
+
__attribute__((__format__(__printf__, 2, 3)))
static inline void __test_print(void (*fn)(const char *), const char *fmt, ...)
{
-#define TEST_MSG_BUFFER_SIZE 4096
- char buf[TEST_MSG_BUFFER_SIZE];
- va_list arg;
+ va_list vargs;
+ char *msg;
- va_start(arg, fmt);
- vsnprintf(buf, sizeof(buf), fmt, arg);
- va_end(arg);
- fn(buf);
+ va_start(vargs, fmt);
+ msg = test_snprintf(fmt, vargs);
+ va_end(vargs);
+
+ if (!msg)
+ return;
+
+ fn(msg);
+ free(msg);
}
#define test_print(fmt, ...) \
--
2.42.2
