unsigned mode, int stage, struct archiver_context *c)
{
struct directory *d;
- d = xmallocz(sizeof(*d) + base->len + 1 + strlen(filename));
+ size_t len = base->len + 1 + strlen(filename) + 1;
+ d = xmalloc(sizeof(*d) + len);
d->up = c->bottom;
d->baselen = base->len;
d->mode = mode;
d->stage = stage;
c->bottom = d;
- d->len = sprintf(d->path, "%.*s%s/", (int)base->len, base->buf, filename);
+ d->len = xsnprintf(d->path, len, "%.*s%s/", (int)base->len, base->buf, filename);
hashcpy(d->oid.hash, sha1);
}