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84 lines
2.2 KiB
Text
84 lines
2.2 KiB
Text
BASH PATCH REPORT
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=================
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Bash-Release: 4.4
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Patch-ID: bash44-008
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Bug-Reported-by: Koichi MURASE <myoga.murase@gmail.com>
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Bug-Reference-ID: <CAFLRLk-V+1AeQ2k=pY7ih6V+MfQ_w8EF3YWL2E+wmLfgKBtzXA@mail.gmail.com>
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Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2016-11/msg00050.html
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Bug-Description:
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Under certain circumstances, bash will evaluate arithmetic expressions as
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part of reading an expression token even when evaluation is suppressed. This
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happens while evaluating a conditional expression and skipping over the
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failed branch of the expression.
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Patch (apply with `patch -p0'):
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*** ../bash-4.4-patched/expr.c 2015-10-11 14:46:36.000000000 -0400
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--- expr.c 2016-11-08 11:55:46.000000000 -0500
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***************
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*** 579,585 ****
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if (curtok == QUES) /* found conditional expr */
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{
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- readtok ();
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- if (curtok == 0 || curtok == COL)
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- evalerror (_("expression expected"));
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if (cval == 0)
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{
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--- 579,582 ----
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***************
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*** 588,591 ****
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--- 585,592 ----
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}
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+ readtok ();
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+ if (curtok == 0 || curtok == COL)
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+ evalerror (_("expression expected"));
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+
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val1 = EXP_HIGHEST ();
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***************
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*** 594,600 ****
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if (curtok != COL)
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evalerror (_("`:' expected for conditional expression"));
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! readtok ();
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! if (curtok == 0)
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! evalerror (_("expression expected"));
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set_noeval = 0;
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if (cval)
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--- 595,599 ----
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if (curtok != COL)
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evalerror (_("`:' expected for conditional expression"));
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!
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set_noeval = 0;
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if (cval)
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***************
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*** 604,608 ****
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--- 603,611 ----
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}
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+ readtok ();
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+ if (curtok == 0)
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+ evalerror (_("expression expected"));
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val2 = expcond ();
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+
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if (set_noeval)
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noeval--;
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*** ../bash-4.4/patchlevel.h 2016-06-22 14:51:03.000000000 -0400
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--- patchlevel.h 2016-10-01 11:01:28.000000000 -0400
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***************
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*** 26,30 ****
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looks for to find the patch level (for the sccs version string). */
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! #define PATCHLEVEL 7
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#endif /* _PATCHLEVEL_H_ */
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--- 26,30 ----
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looks for to find the patch level (for the sccs version string). */
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! #define PATCHLEVEL 8
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#endif /* _PATCHLEVEL_H_ */
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