misc/164094: installer progress over 100%

[Ariane van der Steldt]

>Number:         164094
>Category:       misc
>Synopsis:       installer progress over 100%
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jan 13 19:10:07 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Ariane van der Steldt
>Release:        FreeBSD 9.0 Release
>Organization:
>Environment:
FreeBSD 9.0 Release
iso from wednesday Jan 11, 2012, FreeBSD-9.0-RELEASE-amd64-bootonly.iso,
SHA256 (FreeBSD-9.0-RELEASE-amd64-bootonly.iso) = d16fd5f32c9483177a01241f37ed84f347484c65e52aba4dbf8a2f3108fb457d
>Description:
Installer failed to get the first file in the list (base.tgz from memory) and continued to fetch the next file (kernel.tgz) due to my DNS resolver giving a negative reply, the first fetch.

Subsequently, my overall progress bar quickly overflowed, running over 3000%.
>How-To-Repeat:
Fail to download the first file, progress to the next file.
>Fix:
- clamp progress bar rendering to be between 0% and 100% (this will fix the overflown bar only)
- reset progress bar state on failed download (I suspect this only happens for succesful downloads)

>Release-Note:
>Audit-Trail:
>Unformatted: