>Number:         6492
>Category:       user
>Synopsis:       hexdump -s -n is broken
>Confidential:   yes
>Severity:       serious
>Priority:       medium
>Responsible:    bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   unknown
>Arrival-Date:   Mon Oct 18 21:20:01 GMT 2010
>Closed-Date:
>Last-Modified:
>Originator:     
>Release:        
>Organization:
>Environment:
        System      : OpenBSD 4.8
        Details     : OpenBSD 4.8-current (GENERIC.MP) #4: Sun Oct  3 12:18:28 
CEST 2010
                         
r...@adams.internal:/usr/src/sys/arch/i386/compile/GENERIC.MP

        Architecture: OpenBSD.i386
        Machine     : i386

>Description:
        The skip and length parameter of hexdump doesn't work as expected since
        following change:

        Changes by:     mill...@cvs.openbsd.org 2010/10/12 11:23:21
        Modified files:
                usr.bin/hexdump: display.c hexdump.c hexdump.h

        Looks like setvbuf is called after doing getchar in
        doskip. According to setvbuf(3) that might lead to discarded
        input.

>How-To-Repeat:
        $ echo 12345678 | hexdump -s 2 -n 2
        0000002

        Expected output:
        $ echo 12345678 | hexdump -s 2 -n 2                       
        0000002 3433                                   
        0000004

>Fix:


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

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