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authorBenoît Ganne <bganne@cisco.com>2019-09-11 17:47:56 +0200
committerDamjan Marion <dmarion@me.com>2019-09-12 20:24:47 +0000
commit3c7c613cf18f7825e22190be45ea7f054efafb77 (patch)
tree5f5e667fc580c91220b5dc6f47799fe5dcf7c946
parent7fd402163c221919446942c0784073a56bfd4f70 (diff)
map: fix non-null-terminated C-string
Type: fix Change-Id: Ia3a4693acd5eab234f60b37436c5b642b00bda46 Signed-off-by: Benoît Ganne <bganne@cisco.com>
-rw-r--r--src/plugins/map/map_api.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/plugins/map/map_api.c b/src/plugins/map/map_api.c
index 394ec243dbf..5f2e1f82696 100644
--- a/src/plugins/map/map_api.c
+++ b/src/plugins/map/map_api.c
@@ -120,9 +120,10 @@ vl_api_map_domain_dump_t_handler (vl_api_map_domain_dump_t * mp)
({
map_domain_index = d - mm->domains;
de = vec_elt_at_index(mm->domain_extras, map_domain_index);
+ int tag_len = clib_min(ARRAY_LEN(rmp->tag), vec_len(de->tag) + 1);
/* Make sure every field is initiated (or don't skip the clib_memset()) */
- rmp = vl_msg_api_alloc (sizeof (*rmp) + vec_len(de->tag));
+ rmp = vl_msg_api_alloc (sizeof (*rmp) + tag_len);
rmp->_vl_msg_id = htons(VL_API_MAP_DOMAIN_DETAILS + mm->msg_id_base);
rmp->context = mp->context;
@@ -138,8 +139,8 @@ vl_api_map_domain_dump_t_handler (vl_api_map_domain_dump_t * mp)
rmp->psid_length = d->psid_length;
rmp->flags = d->flags;
rmp->mtu = htons(d->mtu);
-
- strncpy ((char *) rmp->tag, (char *) de->tag, ARRAY_LEN(rmp->tag)-1);
+ memcpy(rmp->tag, de->tag, tag_len-1);
+ rmp->tag[tag_len-1] = '\0';
vl_api_send_msg (reg, (u8 *) rmp);
}));