100     unsigned char *buf = NULL, *sigbuf = NULL;  in dgst_main()  local
370         sigbuf = app_malloc(siglen, "signature buffer");  in dgst_main()
371         siglen = BIO_read(sigbio, sigbuf, siglen);  in dgst_main()
389         ret = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,  in dgst_main()
412                 r = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,  in dgst_main()
428     OPENSSL_free(sigbuf);  in dgst_main()
506     unsigned char *sigbuf = NULL;  in do_fp()  local
542             sigbuf = app_malloc(len, "Signature buffer");  in do_fp()
543             buf = sigbuf;  in do_fp()
592     if (sigbuf != NULL)  in do_fp()
593         OPENSSL_clear_free(sigbuf, len);  in do_fp()