On 02/11/2015 16:13, Richard Moore wrote:
There have always been special commands making s_client unsuitable for this usage - for example R followed by a newline will renegotiate, and Q will quit. According to the docs these can be disabled by -quiet and -ign_eof though I've never tested that myself.
Could you point me to where this (non-obvious) relationship between options ostensibly doing something else and the desired effect is documented? The 1.0.1* man-page of s_server certainly doesn't say that.
On 2 November 2015 at 13:37, Jakob Bohm <jb-open...@wisemo.com <mailto:jb-open...@wisemo.com>> wrote:As with most other "apps" in the openssl binary, the s_server and s_client commands are useful for multiple purposes: 1. As debug tools 2. As a way to do one-off operations without writing any code. 3. As back ends for small programs written in scripting languages that cannot really call the OpenSSL library directly. This is about the latter two uses of s_server and s_client to set up a one-off or scripted secure pipe between two machines. Unfortunately, the current (1.0.2) version of s_server will do special and problematic things when encountering some 3-byte sequences (such as "\nq\n") in the data stream. It would thus be useful for s_server (and if applicable s_client) to accept the "-binary" option (already provided by the cms/smime commands), to turn off this behavior and provide a clean data pass through to/from the other end. In "-binary" mode, no byte value or sequence of byte value is special, except that explicit use of the "-crlf" option still works.
Enjoy Jakob -- Jakob Bohm, CIO, Partner, WiseMo A/S. http://www.wisemo.com Transformervej 29, 2860 Søborg, Denmark. Direct +45 31 13 16 10 This public discussion message is non-binding and may contain errors. WiseMo - Remote Service Management for PCs, Phones and Embedded
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