On Wed, Jul 25, 2018 at 08:04:07AM -0400, Hal Rosenstock wrote:
>
> make[2]: Entering directory '/home/honli/upstream-repos/opensm/opensm'
> depbase=`echo osm_prtn.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> gcc -DHAVE_CONFIG_H -I. -I../include -I../include/opensm -I./../include -I./../../libibumad/include -I/usr/local/include -Werror -Wall -Wwrite-strings -g -D_XOPEN_SOURCE=600 -D_DEFAULT_SOURCE=1 -g -O2 -MT osm_prtn.o -MD -MP -MF $depbase.Tpo -c -o osm_prtn.o osm_prtn.c &&\
> mv -f $depbase.Tpo $depbase.Po
> osm_prtn.c: In function ‘osm_prtn_new’:
> osm_prtn.c:84:3: error: ‘strncpy’ specified bound 32 equals destination size [-Werror=stringop-truncation]
> strncpy(p->name, name, sizeof(p->name));
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
>
> Signed-off-by: Honggang Li <honli@xxxxxxxxxx>
> Signed-off-by: Hal Rosenstock <hal@xxxxxxxxxxxx>
> ---
> opensm/osm_prtn.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/opensm/osm_prtn.c b/opensm/osm_prtn.c
> index bc1814d..a203dff 100644
> --- a/opensm/osm_prtn.c
> +++ b/opensm/osm_prtn.c
> @@ -80,9 +80,10 @@ osm_prtn_t *osm_prtn_new(IN const char *name, IN uint16_t pkey)
> cl_map_construct(&p->part_guid_tbl);
> cl_map_init(&p->part_guid_tbl, 32);
>
> - if (name && *name)
> - strncpy(p->name, name, sizeof(p->name));
> - else
> + if (name && *name) {
> + strncpy(p->name, name, sizeof(p->name) - 1);
> + p->name[sizeof(p->name) - 1] = '\0';
> + } else
> snprintf(p->name, sizeof(p->name), "%04x", cl_ntoh16(pkey));
>
> return p;
Acked-by: Honggang Li <honli@xxxxxxxxxx>
> --
> 2.8.4
>
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