git: sh: Fix some bugs with exit status from case containing ;&.

[Peter Avalos <pavalos@xxxxxxxxxxxxxxxxxxxxxxx>]

commit b88d2fafe2e2a6d776e70cb6d6cca1533087b699
Author: Peter Avalos <pavalos@dragonflybsd.org>
Date:   Sun Feb 5 12:04:53 2012 -0800

    sh: Fix some bugs with exit status from case containing ;&.
    
    Also, rework evalcase() to not evaluate any tree. Instead, return the
    NCLISTFALLTHRU node and handle it in evaltree().
    
    Fixed bugs:
    
    * If a ;& list with non-zero exit status is followed by an empty ;; or final
      list, the exit status of the case command should be equal to the exit
      status of the ;& list, not 0.
    
    * An empty ;& case should not reset $?.
    
    Obtained-from:  FreeBSD 230161

Summary of changes:
 bin/sh/eval.c                             |   35 ++++++++++++++++++++--------
 tools/regression/bin/sh/builtins/case17.0 |    3 ++
 tools/regression/bin/sh/builtins/case18.0 |    7 +++++
 tools/regression/bin/sh/builtins/case19.0 |    7 +++++
 4 files changed, 42 insertions(+), 10 deletions(-)
 create mode 100644 tools/regression/bin/sh/builtins/case17.0
 create mode 100644 tools/regression/bin/sh/builtins/case18.0
 create mode 100644 tools/regression/bin/sh/builtins/case19.0

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/b88d2fafe2e2a6d776e70cb6d6cca1533087b699


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