Package: curl Version: 7.61.0-1 Severity: normal Dear Maintainer,
If I try to get the headers of an HTTP server with $ curl -I http://www.debian.org the output contains several terminal codes that make the answer look cyan/double underlined (depending on the terminal). This can be seen by using strace: $ strace -e write curl -I http://www.debian.org write(1, "HTTP/1.1 302 Found\r\n", 20HTTP/1.1 302 Found ) = 20 write(1, "\33[1mDate\33[21m: Thu, 18 Oct 2018 "..., 46Date: Thu, 18 Oct 2018 17:31:23 GMT ) = 46 write(1, "\33[1mServer\33[21m: Apache\r\n", 25Server: Apache ) = 25 write(1, "\33[1mX-Content-Type-Options\33[21m:"..., 42X-Content-Type-Options: nosniff ) = 42 write(1, "\33[1mX-Frame-Options\33[21m: sameor"..., 38X-Frame-Options: sameorigin ) = 38 write(1, "\33[1mReferrer-Policy\33[21m: no-ref"..., 39Referrer-Policy: no- referrer ) = 39 write(1, "\33[1mX-Xss-Protection\33[21m: 1\r\n", 30X-Xss-Protection: 1 ) = 30 write(1, "\33[1mLocation\33[21m: https://www.d";..., 44Location: https://www.debian.org/ ) = 44 write(1, "\33[1mContent-Type\33[21m: text/html"..., 54Content-Type: text/html; charset=iso-8859-1 ) = 54 write(1, "\r\n", 2 ) = 2 +++ exited with 0 +++ The problem is that those '\33[21m' are interpreted by the terminal making it look weird even after curl is finished. In fact the same effect can be achieved by giving the command: $ echo -e '\e[21mfoobar' To restore the terminal to its original state, I have to use either the command 'reset' or 'echo -e "\e[0m"'. Other infos: $ curl --version curl 7.61.0 (x86_64-pc-linux-gnu) libcurl/7.61.0 OpenSSL/1.1.1 zlib/1.2.11 libidn2/2.0.5 libpsl/0.20.2 (+libidn2/2.0.5) libssh2/1.8.0 nghttp2/1.34.0 librtmp/2.3 Release-Date: 2018-07-11 Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp scp sftp smb smbs smtp smtps telnet tftp Features: AsynchDNS IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP HTTP2 UnixSockets HTTPS-proxy PSL $ apt-cache policy curl curl: Installato: 7.61.0-1 Candidato: 7.61.0-1 Tabella versione: *** 7.61.0-1 500 500 http://httpredir.debian.org/debian sid/main amd64 Packages 500 https://mi.mirror.garr.it/mirrors/debian sid/main amd64 Packages 500 https://mi.mirror.garr.it/mirrors/debian testing/main amd64 Packages 100 /var/lib/dpkg/status $ dpkg -l | grep curl ii curl 7.61.0-1 amd64 command line tool for transferring data with URL syntax ii libcurl3-gnutls:amd64 7.61.0-1 amd64 easy-to-use client-side URL transfer library (GnuTLS flavour) ii libcurl4:amd64 7.61.0-1 amd64 easy-to-use client-side URL transfer library (OpenSSL flavour) ii libcurl4-openssl-dev:amd64 7.61.0-1 amd64 development files and documentation for libcurl (OpenSSL flavour) ii libflickcurl0:amd64 1.26-4 amd64 C library for accessing the Flickr API ii python-pycurl 7.43.0.1-0.2+b1 amd64 Python bindings to libcurl ii python3-pycurl 7.43.0.1-0.2+b1 amd64 Python bindings to libcurl (Python 3) This problem doesn't occur with curl version 7.52.1 on Debian Stable. Kind regards, Marco Romano. -- System Information: Debian Release: buster/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.18.0-2-amd64 (SMP w/3 CPU cores) Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8), LANGUAGE=it_IT.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages curl depends on: ii libc6 2.27-6 ii libcurl4 7.61.0-1 ii zlib1g 1:1.2.11.dfsg-1 curl recommends no packages. curl suggests no packages. -- no debconf information
