commit f2e820c45ff298eee56478ebb0921aecc55cc39a Author: Nick Mathewson nickm@torproject.org Date: Mon Oct 2 14:25:25 2017 -0400

torcert.c: mark some lines unreachable by tests

These are related to handling of failures on functions which can't fail. --- src/or/torcert.c | 11 +++++++++++ 1 file changed, 11 insertions(+)

diff --git a/src/or/torcert.c b/src/or/torcert.c index 05a0a518e..befb39d6e 100644 --- a/src/or/torcert.c +++ b/src/or/torcert.c @@ -76,29 +76,38 @@ tor_cert_sign_impl(const ed25519_keypair_t *signing_key, ed25519_signature_t signature; if (ed25519_sign(&signature, encoded, real_len-ED25519_SIG_LEN, signing_key)<0) { + /* LCOV_EXCL_START */ log_warn(LD_BUG, "Can't sign certificate"); goto err; + /* LCOV_EXCL_STOP */ } memcpy(sig, signature.sig, ED25519_SIG_LEN);

torcert = tor_cert_parse(encoded, real_len); if (! torcert) { + /* LCOV_EXCL_START */ log_warn(LD_BUG, "Generated a certificate we cannot parse"); goto err; + /* LCOV_EXCL_STOP */ }

if (tor_cert_checksig(torcert, &signing_key->pubkey, now) < 0) { + /* LCOV_EXCL_START */ log_warn(LD_BUG, "Generated a certificate whose signature we can't check"); goto err; + /* LCOV_EXCL_STOP */ }

tor_free(encoded);

goto done;

+ /* LCOV_EXCL_START */ err: tor_cert_free(torcert); torcert = NULL; + /* LCOV_EXCL_STOP */ + done: ed25519_cert_free(cert); tor_free(encoded); @@ -675,8 +684,10 @@ tor_cert_encode_ed22519(const tor_cert_t *cert, char **cert_str_out) if (base64_encode(ed_cert_b64, ed_cert_b64_len, (const char *) cert->encoded, cert->encoded_len, BASE64_ENCODE_MULTILINE) < 0) { + /* LCOV_EXCL_START */ log_err(LD_BUG, "Couldn't base64-encode ed22519 cert!"); goto err; + /* LCOV_EXCL_STOP */ }

/* Put everything together in a NUL terminated string. */