[RTEMS Project] #4151: shell command 'hexdump' broken

[RTEMS trac]

#4151: shell command 'hexdump' broken
-----------------------------+---------------------------
  Reporter:  Frank Kuehndel  |      Owner:  (none)
      Type:  defect          |     Status:  assigned
  Priority:  low             |  Milestone:  Indefinite
 Component:  shell           |    Version:  6
  Severity:  normal          |   Keywords:  hexdump shell
Blocked By:                  |   Blocking:
-----------------------------+---------------------------
 {{{
 SHLL [/] # hexdump -n 20 etc
 %07.7qx %04qx %04qx %04qx %04qx %04qx %04qx %04qx %04qx
 %07.7qx %04qx %04qx
 %07.7qx
 }}}

 This output is not what I expected. I can use instead of directory 'etc' a
 file but that won't change the output. Not providing option '-n 20' will
 lead to no output:

 {{{
 SHLL [/] # hexdump hello.txt
 SHLL [/] #
 }}}

 Providing a path containing a '/' will lead to this:

 {{{
 SHLL [/] # hexdump -n 20 etc/group
 no file (stdin no supported): Operation canceled
 }}}

 In addition, the option '-C' leads to a crash.

 How to reproduce:

 Start the shell in QEMU and then type the above example commands.

 {{{
 env QEMU_AUDIO_DRV="none" qemu-system-arm -net none -nographic -M
 realview-pbx-a9 -m 256M -kernel
 build/arm/realview_pbx_a9_qemu/testsuites/libtests/dl10.exe
 }}}

 I tested in this environment:

 {{{
 RTEMS_VERSION    = 6.0.0
 remote origin    = git://git.rtems.org/rtems.git
 commit HEAD      = df9cc1aee87da6c6ba41d52454fa5f45fba74501  (HEAD ->
 master, origin/master, origin/HEAD)
 config.ini       =
     [arm/realview_pbx_a9_qemu]
     RTEMS_DEBUG = True
     RTEMS_NETWORKING = True
     RTEMS_POSIX_API = True
     RTEMS_SMP = True
     BUILD_TESTS = True
 NEWLIB_VERSION   = 3.2.0
 SOURCE_BUILDER   = Set Builder, 6 (31f936a7b74d)
 GCC_VERSION      = arm-rtems6-gcc (GCC) 10.2.1 20200904 (RTEMS 6, RSB
 31f936a7b74d60bda609a9960c6e1a705ba54974, Newlib a0d7982)
 BINUTILS_VERSION = GNU ld (GNU Binutils) 2.35.50.20200904
 }}}

--
Ticket URL: <http://devel.rtems.org/ticket/4151>
RTEMS Project <http://www.rtems.org/>
RTEMS Project