From eb73b87897798de981dbbf019aa957045d768adb Mon Sep 17 00:00:00 2001 From: Martin Sebor Date: Mon, 11 Oct 2021 09:36:57 -0600 Subject: resolv: Avoid GCC 12 false positive warning [BZ #28439]. Replace a call to sprintf with an equivalent pair of stpcpy/strcpy calls to avoid a GCC 12 -Wformat-overflow false positive due to recent optimizer improvements. --- resolv/res_query.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'resolv') diff --git a/resolv/res_query.c b/resolv/res_query.c index 75b0e5f2f7..5d0a68dc81 100644 --- a/resolv/res_query.c +++ b/resolv/res_query.c @@ -610,7 +610,9 @@ __res_context_querydomain (struct resolv_context *ctx, RES_SET_H_ERRNO(statp, NO_RECOVERY); return (-1); } - sprintf(nbuf, "%s.%s", name, domain); + char *p = __stpcpy (nbuf, name); + *p++ = '.'; + strcpy (p, domain); } return __res_context_query (ctx, longname, class, type, answer, anslen, answerp, answerp2, nanswerp2, -- cgit 1.4.1