pop3, upgrade tls fix#16208
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There were two places in the code that tried to connect the SSL filter, e.g. do the TLS handshake, but only one changed pop3 state to CAPA afterwards. Depending on timing, the wrong path was taken and the connection was hanging, waiting for a server reply to a command not sent. Do the upgrade to tls in one place and update connection filter and smtps protocol handler at the same time. Always transition to CAPA on success. refs curl#16166
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Analysis of PR #16208 at 973bce15: Test 987 failed, which has NOT been flaky recently, so there could be a real issue in this PR. Generated by Testclutch |
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There were two places in the code that tried to connect the SSL filter, e.g. do the TLS handshake, but only one changed pop3 state to CAPA afterwards. Depending on timing, the wrong path was taken and the connection was hanging, waiting for a server reply to a command not sent. Do the upgrade to tls in one place and update connection filter and smtps protocol handler at the same time. Always transition to CAPA on success. Ref: curl#16166 Closes curl#16208
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There were two places in the code that tried to connect the SSL filter, e.g. do the TLS handshake, but only one changed pop3 state to CAPA afterwards.
Depending on timing, the wrong path was taken and the connection was hanging, waiting for a server reply to a command not sent.
Do the upgrade to tls in one place and update connection filter and smtps protocol handler at the same time. Always transition to CAPA on success.
refs #16166