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113 lines
4.3 KiB
Text
113 lines
4.3 KiB
Text
BASH PATCH REPORT
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=================
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Bash-Release: 5.0
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Patch-ID: bash50-002
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Bug-Reported-by: Ante Peric <synthmeat@gmail.com>
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Bug-Reference-ID: <B7E3B567-2467-4F7B-B6B9-CA4E75A9C93F@gmail.com>
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Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2019-01/msg00095.html
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Bug-Description:
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When an alias value ends with an unquoted literal tab (not part of a quoted
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string or comment), alias expansion cannot correctly detect the end of the
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alias value after expanding it.
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Patch (apply with `patch -p0'):
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*** ../bash-5.0/parser.h 2018-12-28 19:11:18.000000000 -0500
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--- parser.h 2019-01-11 15:13:03.000000000 -0500
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***************
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*** 48,51 ****
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--- 48,52 ----
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#define PST_REDIRLIST 0x080000 /* parsing a list of redirections preceding a simple command name */
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#define PST_COMMENT 0x100000 /* parsing a shell comment; used by aliases */
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+ #define PST_ENDALIAS 0x200000 /* just finished expanding and consuming an alias */
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/* Definition of the delimiter stack. Needed by parse.y and bashhist.c. */
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*** ../bash-5.0/parse.y 2019-01-02 13:57:34.000000000 -0500
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--- parse.y 2019-01-14 08:23:31.000000000 -0500
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***************
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*** 2558,2567 ****
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pushed_string_list->flags != PSH_DPAREN &&
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(parser_state & PST_COMMENT) == 0 &&
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shell_input_line_index > 0 &&
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! shell_input_line[shell_input_line_index-1] != ' ' &&
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shell_input_line[shell_input_line_index-1] != '\n' &&
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shellmeta (shell_input_line[shell_input_line_index-1]) == 0 &&
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(current_delimiter (dstack) != '\'' && current_delimiter (dstack) != '"'))
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{
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return ' '; /* END_ALIAS */
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}
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--- 2558,2569 ----
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pushed_string_list->flags != PSH_DPAREN &&
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(parser_state & PST_COMMENT) == 0 &&
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+ (parser_state & PST_ENDALIAS) == 0 && /* only once */
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shell_input_line_index > 0 &&
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! shellblank (shell_input_line[shell_input_line_index-1]) == 0 &&
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shell_input_line[shell_input_line_index-1] != '\n' &&
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shellmeta (shell_input_line[shell_input_line_index-1]) == 0 &&
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(current_delimiter (dstack) != '\'' && current_delimiter (dstack) != '"'))
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{
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+ parser_state |= PST_ENDALIAS;
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return ' '; /* END_ALIAS */
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}
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***************
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*** 2572,2575 ****
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--- 2574,2578 ----
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if (uc == 0 && pushed_string_list && pushed_string_list->flags != PSH_SOURCE)
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{
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+ parser_state &= ~PST_ENDALIAS;
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pop_string ();
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uc = shell_input_line[shell_input_line_index];
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*** ../bash-5.0/y.tab.c 2019-01-02 13:57:43.000000000 -0500
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--- y.tab.c 2019-01-14 08:39:23.000000000 -0500
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***************
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*** 4874,4883 ****
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pushed_string_list->flags != PSH_DPAREN &&
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(parser_state & PST_COMMENT) == 0 &&
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shell_input_line_index > 0 &&
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! shell_input_line[shell_input_line_index-1] != ' ' &&
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shell_input_line[shell_input_line_index-1] != '\n' &&
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shellmeta (shell_input_line[shell_input_line_index-1]) == 0 &&
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(current_delimiter (dstack) != '\'' && current_delimiter (dstack) != '"'))
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{
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return ' '; /* END_ALIAS */
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}
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--- 4874,4885 ----
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pushed_string_list->flags != PSH_DPAREN &&
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(parser_state & PST_COMMENT) == 0 &&
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+ (parser_state & PST_ENDALIAS) == 0 && /* only once */
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shell_input_line_index > 0 &&
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! shellblank (shell_input_line[shell_input_line_index-1]) == 0 &&
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shell_input_line[shell_input_line_index-1] != '\n' &&
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shellmeta (shell_input_line[shell_input_line_index-1]) == 0 &&
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(current_delimiter (dstack) != '\'' && current_delimiter (dstack) != '"'))
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{
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+ parser_state |= PST_ENDALIAS;
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return ' '; /* END_ALIAS */
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}
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***************
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*** 4888,4891 ****
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--- 4890,4894 ----
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if (uc == 0 && pushed_string_list && pushed_string_list->flags != PSH_SOURCE)
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{
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+ parser_state &= ~PST_ENDALIAS;
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pop_string ();
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uc = shell_input_line[shell_input_line_index];
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*** ../bash-5.0/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 1
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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 2
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#endif /* _PATCHLEVEL_H_ */
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