[Bug 1904601] Re: lftp 4.8.1 crashes upon exit

[stripTM]

I have a similar problem, the transfer is executed, but in the end
crash.

I paste the end of a debug run, sorry but the messages are in a Spanish
Ubuntu distribution, I hope it is understood.


$ lftp --version
LFTP | Versión 4.8.1 | Copyright (c) 1996-2017 Alexander V. Lukyanov

LTFP es software libre: puede redistribuirlo y modificarlo
bajo los términos de la Licencia pública general GNU tal y como la publica
la Free Software Foundation, en su versión 3 o
(según su criterio) en cualquiera posterior.

Este programa se distribuye con la esperanza de que sea útil,
pero, SIN NINGUNA GARANTÍA, incluso sin garantía de
COMERCIABILIDAD o DE QUE SE AJUSTE A UN PROPÓSITO PARTICULAR. Vea
La Licencia pública general GNU para conocer más detalles.

Debería haber recibido una copia de la Licencia Pública General
con LTFP, en caso contrario, vea <http://www.gnu.org/licenses/>.

Envíe informes de error y preguntas a la lista de correo
<lftp at uniyar.ac.ru>.

Bibliotecas utilizadas: GnuTLS 3.5.18, idn2 2.0.4, Readline 7.0, zlib
1.2.11

---- eof
<--- got a packet, length=24, type=101(STATUS), id=24197
---- status code=0(OK), message=Success
---> sending a packet, length=13, type=12(READDIR), id=24454
---> sending a packet, length=13, type=12(READDIR), id=24455
---> sending a packet, length=13, type=4(CLOSE), id=23839
<--- got a packet, length=28, type=101(STATUS), id=24454
---- status code=1(EOF), message=End of file
---- eof
<--- got a packet, length=28, type=101(STATUS), id=23838
---- status code=1(EOF), message=End of file
<--- got a packet, length=24, type=101(STATUS), id=24357
---- status code=0(OK), message=Success
---> sending a packet, length=13, type=4(CLOSE), id=24456
<--- got a packet, length=28, type=101(STATUS), id=24455
---- status code=1(EOF), message=End of file
<--- got a packet, length=24, type=101(STATUS), id=23839
---- status code=0(OK), message=Success
<--- got a packet, length=24, type=101(STATUS), id=24456
---- status code=0(OK), message=Success
---- Desconectándose...
---- Desconectándose...
---- Desconectándose...
---- Desconectándose...
---- Desconectándose...
lftp: RateLimit.cc:30: void RateLimit::AddXfer(int): La declaración `xfer_number>=0' no se cumple.
Abortado (`core' generado)

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https://bugs.launchpad.net/bugs/1904601

Title:
  lftp 4.8.1 crashes upon exit

Status in lftp package in Ubuntu:
  Confirmed

Bug description:
  Release: Ubuntu 18.04.5 LTS
  Package: 4.8.1-1ubuntu0.2

  lftp 4.8.1 and 4.8.2 have a known bug where it will crash upon exit.
  This bug was fixed on Oct 3, 2017 and is included in lftp 4.8.3.

  This is the error reported on the console:
  RateLimit.cc:30: void RateLimit::AddXfer(int): Assertion `xfer_number>=0' failed.

  Here is the commit that addresses the issue:
  https://github.com/lavv17/lftp/commit/8ac64e9d664270d67fa4b8f75186af0884c030f0

  Currently lftp is not usable in scripts due to the segfault / core
  dump.

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