f3: safer fixed buffer size for alternate F3_NS

This accounts for longer F3_NS values if we need them.

diff --git a/lib/PublicInbox/f3.h b/lib/PublicInbox/f3.h
index 3ac3f57552a880b4f4c2b0a56f655c37a2038d6b..4494e61b7ef14c70309d17374542e6f3f11cf00e 100644 (file)
--- a/lib/PublicInbox/f3.h
+++ b/lib/PublicInbox/f3.h
@@ -1347,7 +1347,7 @@ f3_getxattr(fuse_req_t req, fuse_ino_t ino, const char *name, size_t size)
        size_t rlen = sizeof(fxr);
 
        if (ino == FUSE_ROOT_ID) { /* show f3 internal vars */
-               char x[80];
+               char x[sizeof(F3_NS) + 75];
                int n = INT_MAX;
 
                if (!strcmp(name, F3_NS".entry_timeout"))