eal: fix build with gcc 9.0

build error:
In function ‘eal_plugin_add’,
    .../lib/librte_eal/common/eal_common_options.c:225:2:
    error: ‘strncpy’ output may be truncated copying 4095 bytes from a
           string of length 4095 [-Werror=stringop-truncation]
    strncpy(solib->name, path, PATH_MAX-1);

strncpy may result a not null-terminated string,
replaced it with strlcpy

Fixes: f9a08f650211 ("eal: add support for shared object drivers")
Cc: stable@dpdk.org
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
index b82f3ddd125a826efd5897e9d121190e1bc146a1..e31eca5c034d0806763d0f47c106a0fd26a4f183 100644 (file)
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -222,7 +222,7 @@ eal_plugin_add(const char *path)
                return -1;
        }
        memset(solib, 0, sizeof(*solib));
-       strncpy(solib->name, path, PATH_MAX-1);
+       strlcpy(solib->name, path, PATH_MAX-1);
        solib->name[PATH_MAX-1] = 0;
        TAILQ_INSERT_TAIL(&solib_list, solib, next);