utils_test: add osmo_print_n_test()
A couple of times recently I've needed to copy out a substring to a buffer with
limited size. Use of strncpy() or osmo_strlcpy() are nontrivial here.
I wanted to have a dedicated function.
After I wrote that function with a test, I noticed that I had already
implemented the same thing a while ago, as osmo_print_n() :P
So here is just the test.
Change-Id: Ia716abdc1f58af6065b84f4f567388a32a7b39fc
diff --git a/src/utils.c b/src/utils.c
index 904f6e4..4378431 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -509,6 +509,8 @@
* Copy at most \a siz bytes from \a src to \a dst, ensuring that the result is
* NUL terminated. The NUL character is included in \a siz, i.e. passing the
* actual sizeof(*dst) is correct.
+ *
+ * Note, a similar function that also limits the input buffer size is osmo_print_n().
*/
size_t osmo_strlcpy(char *dst, const char *src, size_t siz)
{