[Bug 1810471] Re: Styled-output incorrectly uses double-underline attribute

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On 2018-08-22T12:19:33+00:00 Kbabioch-b wrote:

Created attachment 780410
Screenshot of messed up terminal

While using curl I've stumbled upon a bug, which messes up my terminal.
The end result is that the characters are bold and double underlined
(see attached screenshot for details). This stays even after the
invocation of curl, so I have to actively reset the terminal after
invoking curl.

I have the following version of curl installed:

kbabioch at aquarius:~> rpm -qi curl
Name        : curl
Version     : 7.61.0

It has something to do with "styled-output", i.e. it works fine with the
option "no-styled-output".

stracing this, shows the following:

kbabioch at aquarius:~> strace -e write -s 120 curl -I registry.opensuse.org
write(1, "HTTP/1.1 301 Moved Permanently\r\n", 32HTTP/1.1 301 Moved Permanently
) = 32
write(1, "\33[1mContent-length\33[21m: 0\r\n", 28Content-length: 0
) = 28
write(1, "\33[1mLocation\33[21m: https://registry.opensuse.org/\r\n", 51Location: https://registry.opensuse.org/
) = 51
write(1, "\r\n", 2
)                     = 2
+++ exited with 0 +++

I'm using GNOME's terminal:

kbabioch at aquarius:~> rpm -qi gnome-terminal
Name        : gnome-terminal
Version     : 3.28.2

Reply at:
https://bugs.launchpad.net/ubuntu/+source/curl/+bug/1810471/comments/0

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On 2018-08-22T12:24:34+00:00 Matthias-gerstner wrote:

This seems to be the upstream fix:

https://github.com/curl/curl/commit/a82372e0fb3aa3ce9ab27687c4d4a738a6ec9064

Reply at:
https://bugs.launchpad.net/ubuntu/+source/curl/+bug/1810471/comments/1

------------------------------------------------------------------------
On 2018-08-22T12:35:19+00:00 Kbabioch-b wrote:

This fixes the problem, I've prepared a submission:
https://build.opensuse.org/request/show/630909

Reply at:
https://bugs.launchpad.net/ubuntu/+source/curl/+bug/1810471/comments/2

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On 2018-08-22T14:07:45+00:00 Vcizek-l wrote:

Another problem that fixed itself :-)
Thanks for the report and the submission.

Closing, as the bug affects Tumbleweed only.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/curl/+bug/1810471/comments/3


** Changed in: curl (openSUSE)
       Status: Unknown => Fix Released

** Changed in: curl (openSUSE)
   Importance: Unknown => Medium

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https://bugs.launchpad.net/bugs/1810471

Title:
  Styled-output incorrectly uses double-underline attribute

Status in curl package in Ubuntu:
  New
Status in curl package in openSUSE:
  Fix Released

Bug description:
  Using --styled-output (which is the default running cURL interactive
  terminal) results in the double-underline text attribute being set
  incorrectly and remaining on after cURL exits.

  For example, running this in xfce4-terminal:
  curl -I google.com

  Results in double-underlined text starting from the ":" after
  "Location", and running into the shell prompt after cURL has exited.

  The intended behaviour of this feature is HTTP header names to be
  bold, and header values to be normal.

  While I noticed the problem in xfce4-terminal on Xubuntu, others have
  reported the issue on other terminal emulators, so I don't think this
  is specific to xfce4-terminal.

  Man page for --styled-output doesn't mention setting double underline either:
      Enables the automatic use of bold font styles when writing HTTP headers to the terminal. Use  --no-styled-output  to switch them off.
                Added in 7.61.0.

  This has already been fixed upstream by using the correct font
  attribute control code.

  Upstream cURL bug report:
  https://github.com/curl/curl/issues/2736

  Fixed upstream in:
  https://github.com/curl/curl/pull/2738

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