osmo_strlcpy: sanitize: don't memcpy from NULL src even if len is 0
Some callers pass NULL and len == 0. The semantics are that we then
nul-terminate an emtpy string. Avoid a sanitizer warning by not calling
memcpy() for the NULL case.
Change-Id: I883048cf2807e606c6481634dbd569fc12aed889
diff --git a/src/utils.c b/src/utils.c
index f63ff89..bc5329d 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -385,7 +385,8 @@
if (siz) {
size_t len = (ret >= siz) ? siz - 1 : ret;
- memcpy(dst, src, len);
+ if (src)
+ memcpy(dst, src, len);
dst[len] = '\0';
}
return ret;