732863 – lftp uses ipv6 addresses even when ipv6 is not available

link管理

链接快照平台

输入网页链接，自动生成快照
标签化管理网页链接

相关文章推荐

激动的熊猫 · 资源模块 - Rspack· 1 月前 ·

苦恼的洋葱 · 地铁大兴机场线具体票制票价公示· 2 月前 ·

唠叨的豆芽 · Pandas中multiindex转换成列_ ...· 8 月前 ·

英姿勃勃的地瓜 · 数说75年丨一组数据看宁德发展之变 _ ...· 8 月前 ·

爱搭讪的哑铃 · 共享单车去哪儿了？公共政策应及时助力-新华网· 1 年前 ·

Cause: The code handling errors while connecting to remote host didn't backed up the error value until checking it. The error value was therefore overwritten by a different error value before checking. Consequence: As a result, lftp failed to connect to a remote host if the client host didn't have IPv6 connection, but the remote host domain name was resolved also to IPv6 addresses. Therefore lftp failed to connect to the first IPv6 remote host address and existed. The error checking code was fixed to back up the appropriate error value before checking. Therefore the value is now not overwritten and the right error value is checked later on. Result: As a result lftp is not able to connect to a remote host which domain name resolves to also IPv6 addresses, from the client which has only IPv4 connectivity.

lftp uses ipv6 addresses even when ipv6 is not available Version-Release number of selected component (if applicable): $ rpm -q lftp lftp-4.0.9-1.el6.i686 How reproducible: Always Steps to Reproduce: 1. $ ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:0C:29:1B:72:D9 inet addr:192.168.120.2 Bcast:192.168.120.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3060 errors:0 dropped:0 overruns:0 frame:0 TX packets:2885 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:607125 (592.8 KiB) TX bytes:386040 (376.9 KiB) Interrupt:19 Base address:0x2000 2. $ lftp -d http://ftp.twaren.net/Linux/ ---- Connecting to ftp.twaren.net (2001:e10:5c00:5::9) port 80 **** connect: Network is unreachable ---- Closing HTTP connection cd: Success 3. $ lftp -d http://releases.ubuntu.com/ ---- Connecting to releases.ubuntu.com (2001:7b8:3:37::21:1) port 80 **** connect: Network is unreachable ---- Closing HTTP connection cd: Success Actual results: As above. Expected results: $ lftp http://ftp.twaren.net/Linux/ cd ok, cwd=/Linux Additional info: 1. Similar bug report is available here: https://bugs.launchpad.net/ubuntu/+source/lftp/+bug/736479 2. After switching to lftp-4.2.1-1.fc15.i686.rpm or lftp-4.0.5-2.fc13.i686.rpm, this issue is gone.

This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated
in the current release, Red Hat is unfortunately unable to
address this request at this time. Red Hat invites you to
ask your support representative to propose this request, if
appropriate and relevant, in the next release of Red Hat
Enterprise Linux. If you would like it considered as an
exception in the current release, please ask your support
representative.
This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated
in the current release, Red Hat is unfortunately unable to
address this request at this time. Red Hat invites you to
ask your support representative to propose this request, if
appropriate and relevant, in the next release of Red Hat
Enterprise Linux. If you would like it considered as an
exception in the current release, please ask your support
representative.
This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated
in the current release, Red Hat is unable to address this
request at this time.
Red Hat invites you to ask your support representative to
propose this request, if appropriate, in the next release of
Red Hat Enterprise Linux.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-0793.html