bash/bash-5.0-patch-2.patch
Siteshwar Vashisht 91692f161e Rebase to bash-5.0
- Remove 'bash-2.02-security.patch' patch as it does not seem to be
needed.
- Remove 'bash-2.05b-xcc.patch' as this change is already in upstream.
- Remove 'bash-4.1-defer-sigchld-trap.patch' as this patch was doing
nothing and this bug that it tried to solve should be fixed in upstream
https://lists.gnu.org/archive/html/bug-bash/2012-03/msg00045.html
- Remove 'bash-4.4-coverity.patch' as it has been upstreamed.
- Delete several other patches that were not removed while rebasing to
bash-4.4.

Resolves: #1675080
2019-02-15 05:04:26 +01:00

97 lines
3.5 KiB
Diff

From ddf3f643cb9b9a2ca8e6d996c605e4332204874c Mon Sep 17 00:00:00 2001
From: Chet Ramey <chet.ramey@case.edu>
Date: Fri, 18 Jan 2019 15:13:57 -0500
Subject: [PATCH] Bash-5.0 patch 2: fix expansion of aliases whose value ends
with an unquoted tab
---
parse.y | 5 ++++-
parser.h | 1 +
patchlevel.h | 2 +-
y.tab.c | 5 ++++-
4 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/parse.y b/parse.y
index 3ff87bcc..07e6e3e4 100644
--- a/parse.y
+++ b/parse.y
@@ -2557,12 +2557,14 @@ next_alias_char:
if (uc == 0 && pushed_string_list && pushed_string_list->flags != PSH_SOURCE &&
pushed_string_list->flags != PSH_DPAREN &&
(parser_state & PST_COMMENT) == 0 &&
+ (parser_state & PST_ENDALIAS) == 0 && /* only once */
shell_input_line_index > 0 &&
- shell_input_line[shell_input_line_index-1] != ' ' &&
+ shellblank (shell_input_line[shell_input_line_index-1]) == 0 &&
shell_input_line[shell_input_line_index-1] != '\n' &&
shellmeta (shell_input_line[shell_input_line_index-1]) == 0 &&
(current_delimiter (dstack) != '\'' && current_delimiter (dstack) != '"'))
{
+ parser_state |= PST_ENDALIAS;
return ' '; /* END_ALIAS */
}
#endif
@@ -2571,6 +2573,7 @@ pop_alias:
/* This case works for PSH_DPAREN as well */
if (uc == 0 && pushed_string_list && pushed_string_list->flags != PSH_SOURCE)
{
+ parser_state &= ~PST_ENDALIAS;
pop_string ();
uc = shell_input_line[shell_input_line_index];
if (uc)
diff --git a/parser.h b/parser.h
index 54dd2c88..6d08915d 100644
--- a/parser.h
+++ b/parser.h
@@ -47,6 +47,7 @@
#define PST_REPARSE 0x040000 /* re-parsing in parse_string_to_word_list */
#define PST_REDIRLIST 0x080000 /* parsing a list of redirections preceding a simple command name */
#define PST_COMMENT 0x100000 /* parsing a shell comment; used by aliases */
+#define PST_ENDALIAS 0x200000 /* just finished expanding and consuming an alias */
/* Definition of the delimiter stack. Needed by parse.y and bashhist.c. */
struct dstack {
diff --git a/patchlevel.h b/patchlevel.h
index 40db1a32..a988d852 100644
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -25,6 +25,6 @@
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
looks for to find the patch level (for the sccs version string). */
-#define PATCHLEVEL 1
+#define PATCHLEVEL 2
#endif /* _PATCHLEVEL_H_ */
diff --git a/y.tab.c b/y.tab.c
index 1abe2c50..7efce3c8 100644
--- a/y.tab.c
+++ b/y.tab.c
@@ -4873,12 +4873,14 @@ next_alias_char:
if (uc == 0 && pushed_string_list && pushed_string_list->flags != PSH_SOURCE &&
pushed_string_list->flags != PSH_DPAREN &&
(parser_state & PST_COMMENT) == 0 &&
+ (parser_state & PST_ENDALIAS) == 0 && /* only once */
shell_input_line_index > 0 &&
- shell_input_line[shell_input_line_index-1] != ' ' &&
+ shellblank (shell_input_line[shell_input_line_index-1]) == 0 &&
shell_input_line[shell_input_line_index-1] != '\n' &&
shellmeta (shell_input_line[shell_input_line_index-1]) == 0 &&
(current_delimiter (dstack) != '\'' && current_delimiter (dstack) != '"'))
{
+ parser_state |= PST_ENDALIAS;
return ' '; /* END_ALIAS */
}
#endif
@@ -4887,6 +4889,7 @@ pop_alias:
/* This case works for PSH_DPAREN as well */
if (uc == 0 && pushed_string_list && pushed_string_list->flags != PSH_SOURCE)
{
+ parser_state &= ~PST_ENDALIAS;
pop_string ();
uc = shell_input_line[shell_input_line_index];
if (uc)
--
2.17.2