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To:	cygwin AT cygwin DOT com
From:	Michael Haubenwallner <michael DOT haubenwallner AT ssi-schaefer DOT com>
Subject:	textmode for stdout, what is "correct" now?
Openpgp:	preference=signencrypt
Message-ID:	<739ed5ce-6902-d702-e152-65dc2c1da667@ssi-schaefer.com>
Date:	Thu, 14 Feb 2019 16:23:21 +0100
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Hi,

so I find myself struggling with textmode versus binmode for stdio again.

Running the openssl command (from within the apps/ build directory here) does
yield different results regarding carriage return depending on the version:

$ ./apps/openssl version
OpenSSL 1.0.2p  14 Aug 2018
$ ./apps/openssl x509 -hash -noout -in /etc/pki/tls/cert.pem | xxd
00000000: 6139 3464 3039 6535 0a                   a94d09e5.


$ ./apps/openssl version
OpenSSL 1.1.0j  20 Nov 2018
$ ./apps/openssl x509 -hash -noout -in /etc/pki/tls/cert.pem | xxd
00000000: 6139 3464 3039 6535 0d0a                 a94d09e5..

Some subsequent shell script does create wrong symlink filenames
(with embedded CR) when used with openssl-1.1.x.

The commit that changed this behaviour in openssl-1.1 is:
https://github.com/openssl/openssl/commit/bdd58d98467e9f0f6635c1628e1eae304383afb1

From an openssl developer's point of view, I can understand to set
textmode when the intent is to output some text, and to set
binmode when the intent is to output some binary data.

Question now is: These days, what is the correct way to handle this?

Is it up to openssl to not use textmode at all with Cygwin (what if
used from within some cmd.exe?), or is it up to the shell script to
explicitly drop any carriage return here?

Thanks!
/haubi/

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