bugGNU Wget - Bugs: bug #50219, ftp.c calls abort() under certain...

 
 

bug #50219: ftp.c calls abort() under certain error conditions

Submitted by:  Tim Ruehsen <rockdaboot>
Submitted on:  Fri 03 Feb 2017 10:40:55 AM UTC  
 
Category:  Program Logic Severity:  3 - Normal
Priority:  5 - Normal Status:  None
Privacy:  Public Assigned to:  None
Originator Name:  Open/Closed:  Open
Release:  trunk Operating System:  None
Reproducibility:  None Fixed Release:  None
Planned Release:  None Regression:  None
Work Required:  1 - Days Patch Included:  None

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Fri 03 Feb 2017 10:40:55 AM UTC, original submission:

A potential long runner like Wget should never call abort().

In src/ftp.c are some switch() with incomplete testing and defaulting to call abort(). This may stop Wget randomly.

Example:
ftp.c, L585+:
err = ftp_syst ...
switch (err)...

'err' may become WRITEFAILED on write errors. This is not cased by the switch and would got into the default case that calls abort().

Solution:
Never call abort(). Instead print a precise error message and return the error to the calling function.

Tim Ruehsen <rockdaboot>
Project Administrator

 

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