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83 lines
2.3 KiB
83 lines
2.3 KiB
6 years ago
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BASH PATCH REPORT
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=================
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Bash-Release: 4.2
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Patch-ID: bash42-009
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Bug-Reported-by: <piuma@piumalab.org>
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Bug-Reference-ID: <4DAAC0DB.7060606@piumalab.org>
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Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2011-04/msg00075.html
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Bug-Description:
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Under certain circumstances, running `fc -l' two times in succession with a
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relative history offset at the end of the history will result in an incorrect
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calculation of the last history entry and a seg fault.
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Patch (apply with `patch -p0'):
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*** ../bash-4.2-patched/builtins/fc.def 2010-05-30 18:25:38.000000000 -0400
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--- builtins/fc.def 2011-04-19 15:46:17.000000000 -0400
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***************
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*** 305,309 ****
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/* XXX */
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! if (saved_command_line_count > 0 && i == last_hist && hlist[last_hist] == 0)
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while (last_hist >= 0 && hlist[last_hist] == 0)
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last_hist--;
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--- 305,309 ----
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/* XXX */
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! if (i == last_hist && hlist[last_hist] == 0)
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while (last_hist >= 0 && hlist[last_hist] == 0)
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last_hist--;
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***************
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*** 476,480 ****
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{
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int sign, n, clen, rh;
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! register int i, j;
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register char *s;
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--- 476,480 ----
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{
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int sign, n, clen, rh;
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! register int i, j, last_hist;
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register char *s;
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***************
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*** 496,500 ****
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calculation as if it were on. */
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rh = remember_on_history || ((subshell_environment & SUBSHELL_COMSUB) && enable_history_list);
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! i -= rh + hist_last_line_added;
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/* No specification defaults to most recent command. */
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--- 496,508 ----
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calculation as if it were on. */
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rh = remember_on_history || ((subshell_environment & SUBSHELL_COMSUB) && enable_history_list);
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! last_hist = i - rh - hist_last_line_added;
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!
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! if (i == last_hist && hlist[last_hist] == 0)
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! while (last_hist >= 0 && hlist[last_hist] == 0)
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! last_hist--;
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! if (last_hist < 0)
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! return (-1);
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!
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! i = last_hist;
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/* No specification defaults to most recent command. */
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*** ../bash-4.2-patched/patchlevel.h Sat Jun 12 20:14:48 2010
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--- patchlevel.h Thu Feb 24 21:41:34 2011
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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 8
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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 9
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#endif /* _PATCHLEVEL_H_ */
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