diff options
| author | Viktor Dukhovni <openssl-users@dukhovni.org> | 2016-05-16 21:38:03 -0400 |
|---|---|---|
| committer | Viktor Dukhovni <openssl-users@dukhovni.org> | 2016-05-19 18:14:43 -0400 |
| commit | 96747f0f4e43863a1ec446a95463c2fca9b6ae82 (patch) | |
| tree | 7b6e88bd3d1700d9d2cfbb5303925af938fb71fb | |
| parent | 2e648db2469ea94d54fa51e3af7ac54663b94966 (diff) | |
Clarify negative return from X509_verify_cert()
Reviewed-by: Tim Hudson <tjh@openssl.org>
| -rw-r--r-- | doc/crypto/X509_verify_cert.pod | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/doc/crypto/X509_verify_cert.pod b/doc/crypto/X509_verify_cert.pod index a22e44118c..4689e3afea 100644 --- a/doc/crypto/X509_verify_cert.pod +++ b/doc/crypto/X509_verify_cert.pod @@ -31,12 +31,13 @@ Applications rarely call this function directly but it is used by OpenSSL internally for certificate validation, in both the S/MIME and SSL/TLS code. -The negative return value from X509_verify_cert() can only occur if no -certificate is set in B<ctx> (due to a programming error); if X509_verify_cert() -twice without reinitialising B<ctx> in between; or if a retry -operation is requested during internal lookups (which never happens with -standard lookup methods). It is however recommended that application check -for <= 0 return value on error. +A negative return value from X509_verify_cert() can occur if it is invoked +incorrectly, such as with no certificate set in B<ctx>, or when it is called +twice in succession without reinitialising B<ctx> for the second call. +A negative return value can also happen due to internal resource problems or if +a retry operation is requested during internal lookups (which never happens +with standard lookup methods). +Applications must check for <= 0 return value on error. =head1 BUGS |