X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=pppd%2Fplugins%2Fradius%2Fclientid.c;h=09ec3d04c56346e309d0c209690214dcbe9dd3d8;hb=db3aa5f130886194d00a0c24db1e75261f9f9798;hp=d49579c43cc3ec10039bf754268495dcad16c4fa;hpb=4abe4296f0eddbb2b6ff11dbbd27100156c85f87;p=ppp.git

diff --git a/pppd/plugins/radius/clientid.c b/pppd/plugins/radius/clientid.c
index d49579c..09ec3d0 100644
--- a/pppd/plugins/radius/clientid.c
+++ b/pppd/plugins/radius/clientid.c
@@ -110,7 +110,7 @@ UINT4 rc_map2id(char *name)
 	if (*name != '/')
 		strcpy(ttyname, "/dev/");
 
-	strncat(ttyname, name, sizeof(ttyname));
+	strncat(ttyname, name, sizeof(ttyname) - strlen(ttyname) -1);
 
 	for(p = map2id_list; p; p = p->next)
 		if (!strcmp(ttyname, p->name)) return p->id;