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X-Received-From: 216.71.154.42 Subject: [Qemu-devel] [PATCH v2 1/5] util/qemu-sockets: Fix GCC 9 build warnings X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "qemu-trivial@nongnu.org" , "riku.voipio@iki.fi" , "laurent@vivier.eu" , Alistair Francis , "kraxel@redhat.com" , "alistair23@gmail.com" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (found 2 invalid signatures) Fix this warning when building with GCC9 on Fedora 30: In function =E2=80=98strncpy=E2=80=99, inlined from =E2=80=98unix_connect_saddr.isra.0=E2=80=99 at util/qemu-s= ockets.c:925:5: /usr/include/bits/string_fortified.h:106:10: error: =E2=80=98__builtin_strn= cpy=E2=80=99 specified bound 108 equals destination size [-Werror=3Dstringo= p-truncation] 106 | return __builtin___strncpy_chk (__dest, __src, __len, __bos (__de= st)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~= ~~~~ In function =E2=80=98strncpy=E2=80=99, inlined from =E2=80=98unix_listen_saddr.isra.0=E2=80=99 at util/qemu-so= ckets.c:880:5: Signed-off-by: Alistair Francis --- util/qemu-sockets.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c index 9705051690..8c3322958f 100644 --- a/util/qemu-sockets.c +++ b/util/qemu-sockets.c @@ -829,7 +829,7 @@ static int unix_listen_saddr(UnixSocketAddress *saddr, struct sockaddr_un un; int sock, fd; char *pathbuf =3D NULL; - const char *path; + const char *path QEMU_NONSTRING; =20 sock =3D qemu_socket(PF_UNIX, SOCK_STREAM, 0); if (sock < 0) { @@ -922,7 +922,7 @@ static int unix_connect_saddr(UnixSocketAddress *saddr,= Error **errp) =20 memset(&un, 0, sizeof(un)); un.sun_family =3D AF_UNIX; - strncpy(un.sun_path, saddr->path, sizeof(un.sun_path)); + memcpy(un.sun_path, saddr->path, MIN(strlen(saddr->path), sizeof(un.su= n_path))); =20 /* connect to peer */ do { --=20 2.21.0