mirror of
https://https.git.savannah.gnu.org/git/bash.git
synced 2026-06-25 23:03:09 +02:00
commit bash-20150911 snapshot
This commit is contained in:
Chet Ramey
@@ -1,6 +1,123 @@
|
||||
This document details the changes between this version, bash-4.4-alpha, and
|
||||
the previous version, bash-4.3-release.
|
||||
|
||||
1. Change to Bash
|
||||
|
||||
a. Fixed two bugs that caused out-of-bounds reads when skipping over assignment
|
||||
statements while finding the word on which to perform programmable
|
||||
completion.
|
||||
|
||||
b. Fixed a memory leak in programmable completion.
|
||||
|
||||
c. Fixed a bug that could cause the shell to crash when interrupting the
|
||||
wait builtin.
|
||||
|
||||
d. Fixed a bug that caused ${!vvv@} to be interpreted as introducing the new
|
||||
`@' operator.
|
||||
|
||||
e. Fixed a bug that caused the && and || operators to be incorrectly optimized.
|
||||
|
||||
f. The shell now undoes redirections before exiting the shell when the `-e'
|
||||
option is enabled, and a shell function fails.
|
||||
|
||||
g. History expansion now skips over the history expansion character in command
|
||||
and process substitution.
|
||||
|
||||
h. Fixed a bug that caused stray '\001' characters to be added to the output
|
||||
of `declare -p'.
|
||||
|
||||
i. Fixed a memory leak when processing declare commands that perform compound
|
||||
array assignments.
|
||||
|
||||
j. Fixed a bug that could cause the shell to crash when reading input from a
|
||||
file and the limit on open file descriptors is high.
|
||||
|
||||
k. Fixed a bug that caused the ERR and RETURN traps to be unset if they were
|
||||
set in a shell function but unset previously.
|
||||
|
||||
l. Fixed a bug that caused several signals to be ignored if `exec' failed in
|
||||
an interactive shell.
|
||||
|
||||
m. A posix-mode non-interactive shell now considers a parameter expansion error
|
||||
to be a fatal error.
|
||||
|
||||
n. The `time' command now prints timing statistics for failed commands when
|
||||
the -e option is enabled.
|
||||
|
||||
o. Fixed a bug that caused the shell to crash when attempting to indirectly
|
||||
expand a shell variable with an invalid name.
|
||||
|
||||
p. Fixed a bug that caused the shell to crash when running a trap containing
|
||||
a process substitution.
|
||||
|
||||
q. Bash now prints the keyword `function' before a function with the same name
|
||||
as a reserved word when using `declare -f' to avoid parse errors when
|
||||
reusing the output as input.
|
||||
|
||||
r. Fixed a bug that caused the shell to crash when using declare -g to attempt
|
||||
to redefine an existing global indexed array variable as an associative
|
||||
array.
|
||||
|
||||
s. Fixed a memory leak that occurred when interrupting brace expansions
|
||||
generating a sequence.
|
||||
|
||||
t. Fixed a bug that resulted in alias expansion in redirections.
|
||||
|
||||
u. The `declare -a' and `declare -A' commands now print fewer warnings when
|
||||
attempting to create and initialize an array at the same time, but
|
||||
relying on word expansions to construct the compound assignment.
|
||||
|
||||
v. The `help' builtin now behaves better in locales where each wide
|
||||
character occupies more than one display column.
|
||||
|
||||
w. The `read' builtin no longer has a possible race condition when a timeout
|
||||
occurs.
|
||||
|
||||
x. Fixed several expansion problems encountered when IFS="'".
|
||||
|
||||
y. Fixed a problem with the expansion of $'\c?'.
|
||||
|
||||
z. Bash no longer splits the expansion of here-strings, as the documentation
|
||||
has always said.
|
||||
|
||||
2. Changes to Readline
|
||||
|
||||
a. Colored completion prefixes are now displayed using a different color, less
|
||||
likely to collide with files.
|
||||
|
||||
b. Fixed a bug that caused vi-mode character search to misbehave when
|
||||
running in callback mode.
|
||||
|
||||
c. Fixed a bug that caused output to be delayed when input is coming from a
|
||||
macro in vi-mode.
|
||||
|
||||
d. Fixed a bug that caused the vi-mode `.' command to misbehave when redoing
|
||||
a multi-key key sequence via a macro.
|
||||
|
||||
e. Fixed a bug that caused problems with applications that supply their own
|
||||
input function when performing completion.
|
||||
|
||||
f. When read returns -1/EIO when attempting to read a key, return an error
|
||||
instead of line termination back to the caller.
|
||||
|
||||
3. New Features in Bash
|
||||
|
||||
a. `make install' now installs the example loadable builtins and a set of
|
||||
bash headers to use when developing new loadable builtins.
|
||||
|
||||
b. `enable -f' now attempts to call functions named BUILTIN_builtin_load when
|
||||
loading BUILTIN, and BUILTIN_builtin_unload when deleting it. This allows
|
||||
loadable builtins to run initialization and cleanup code.
|
||||
|
||||
c. There is a new BASH_LOADABLES_PATH variable containing a list of directories
|
||||
where the `enable -f' command looks for shared objects containing loadable
|
||||
builtins.
|
||||
|
||||
4. New Features in Readline
|
||||
------------------------------------------------------------------------------
|
||||
This document details the changes between this version, bash-4.4-alpha, and
|
||||
the previous version, bash-4.3-release.
|
||||
|
||||
1. Changes to Bash
|
||||
|
||||
a. A bug that caused pipelines to be corrupted while running the DEBUG trap
|
||||
|
||||
+117
@@ -1,6 +1,123 @@
|
||||
This document details the changes between this version, bash-4.4-alpha, and
|
||||
the previous version, bash-4.3-release.
|
||||
|
||||
1. Change to Bash
|
||||
|
||||
a. Fixed two bugs that caused out-of-bounds reads when skipping over assignment
|
||||
statements while finding the word on which to perform programmable
|
||||
completion.
|
||||
|
||||
b. Fixed a memory leak in programmable completion.
|
||||
|
||||
c. Fixed a bug that could cause the shell to crash when interrupting the
|
||||
wait builtin.
|
||||
|
||||
d. Fixed a bug that caused ${!vvv@} to be interpreted as introducing the new
|
||||
`@' operator.
|
||||
|
||||
e. Fixed a bug that caused the && and || operators to be incorrectly optimized.
|
||||
|
||||
f. The shell now undoes redirections before exiting the shell when the `-e'
|
||||
option is enabled, and a shell function fails.
|
||||
|
||||
g. History expansion now skips over the history expansion character in command
|
||||
and process substitution.
|
||||
|
||||
h. Fixed a bug that caused stray '\001' characters to be added to the output
|
||||
of `declare -p'.
|
||||
|
||||
i. Fixed a memory leak when processing declare commands that perform compound
|
||||
array assignments.
|
||||
|
||||
j. Fixed a bug that could cause the shell to crash when reading input from a
|
||||
file and the limit on open file descriptors is high.
|
||||
|
||||
k. Fixed a bug that caused the ERR and RETURN traps to be unset if they were
|
||||
set in a shell function but unset previously.
|
||||
|
||||
l. Fixed a bug that caused several signals to be ignored if `exec' failed in
|
||||
an interactive shell.
|
||||
|
||||
m. A posix-mode non-interactive shell now considers a parameter expansion error
|
||||
to be a fatal error.
|
||||
|
||||
n. The `time' command now prints timing statistics for failed commands when
|
||||
the -e option is enabled.
|
||||
|
||||
o. Fixed a bug that caused the shell to crash when attempting to indirectly
|
||||
expand a shell variable with an invalid name.
|
||||
|
||||
p. Fixed a bug that caused the shell to crash when running a trap containing
|
||||
a process substitution.
|
||||
|
||||
q. Bash now prints the keyword `function' before a function with the same name
|
||||
as a reserved word when using `declare -f' to avoid parse errors when
|
||||
reusing the output as input.
|
||||
|
||||
r. Fixed a bug that caused the shell to crash when using declare -g to attempt
|
||||
to redefine an existing global indexed array variable as an associative
|
||||
array.
|
||||
|
||||
s. Fixed a memory leak that occurred when interrupting brace expansions
|
||||
generating a sequence.
|
||||
|
||||
t. Fixed a bug that resulted in alias expansion in redirections.
|
||||
|
||||
u. The `declare -a' and `declare -A' commands now print fewer warnings when
|
||||
attempting to create and initialize an array at the same time, but
|
||||
relying on word expansions to construct the compound assignment.
|
||||
|
||||
v. The `help' builtin now behaves better in locales where each wide
|
||||
character occupies more than one display column.
|
||||
|
||||
w. The `read' builtin no longer has a possible race condition when a timeout
|
||||
occurs.
|
||||
|
||||
x. Fixed several expansion problems encountered when IFS="'".
|
||||
|
||||
y. Fixed a problem with the expansion of $'\c?'.
|
||||
|
||||
z. Bash no longer splits the expansion of here-strings, as the documentation
|
||||
has always said.
|
||||
|
||||
2. Changes to Readline
|
||||
|
||||
a. Colored completion prefixes are now displayed using a different color, less
|
||||
likely to collide with files.
|
||||
|
||||
b. Fixed a bug that caused vi-mode character search to misbehave when
|
||||
running in callback mode.
|
||||
|
||||
c. Fixed a bug that caused output to be delayed when input is coming from a
|
||||
macro in vi-mode.
|
||||
|
||||
d. Fixed a bug that caused the vi-mode `.' command to misbehave when redoing
|
||||
a multi-key key sequence via a macro.
|
||||
|
||||
e. Fixed a bug that caused problems with applications that supply their own
|
||||
input function when performing completion.
|
||||
|
||||
f. When read returns -1/EIO when attempting to read a key, return an error
|
||||
instead of line termination back to the caller.
|
||||
|
||||
3. New Features in Bash
|
||||
|
||||
a. `make install' now installs the example loadable builtins and a set of
|
||||
bash headers to use when developing new loadable builtins.
|
||||
|
||||
b. `enable -f' now attempts to call functions named BUILTIN_builtin_load when
|
||||
loading BUILTIN, and BUILTIN_builtin_unload when deleting it. This allows
|
||||
loadable builtins to run initialization and cleanup code.
|
||||
|
||||
c. There is a new BASH_LOADABLES_PATH variable containing a list of directories
|
||||
where the `enable -f' command looks for shared objects containing loadable
|
||||
builtins.
|
||||
|
||||
4. New Features in Readline
|
||||
------------------------------------------------------------------------------
|
||||
This document details the changes between this version, bash-4.4-alpha, and
|
||||
the previous version, bash-4.3-release.
|
||||
|
||||
1. Changes to Bash
|
||||
|
||||
a. A bug that caused pipelines to be corrupted while running the DEBUG trap
|
||||
|
||||
+48
-37
@@ -9169,8 +9169,8 @@ doc/{bash.1,bashref.texi}
|
||||
7/27
|
||||
----
|
||||
examples/loadables/Makefile.in
|
||||
- add variables and targets to support `make install'; installs supported
|
||||
builtins in $(libdir)/bash
|
||||
- add variables and targets to support `make install'; installs
|
||||
supported builtins in $(libdir)/bash
|
||||
|
||||
7/28
|
||||
----
|
||||
@@ -9186,9 +9186,9 @@ trap.[ch]
|
||||
trapped; similar to maybe_set_debug_trap back from 4/10
|
||||
|
||||
lib/malloc/malloc.c
|
||||
- internal_free: make sure `ubytes' is initialized if MALLOC_WATCH is defined
|
||||
and we'll be passing it to _malloc_ckwatch. Report from Flavio Medeiros
|
||||
<flaviomotamederios@gmail.com>
|
||||
- internal_free: make sure `ubytes' is initialized if MALLOC_WATCH is
|
||||
defined and we'll be passing it to _malloc_ckwatch. Report from
|
||||
Flavio Medeiros <flaviomotamederios@gmail.com>
|
||||
|
||||
execute_cmd.c
|
||||
- execute_function: use maybe_set_error_trap in the same way as
|
||||
@@ -9198,9 +9198,9 @@ execute_cmd.c
|
||||
7/29
|
||||
----
|
||||
jobs.c
|
||||
- wait_for: no longer need to call job_signal_status when checking whether
|
||||
a comsub shell reaped a child that died due to SIGINT; code now uses
|
||||
child_caught_sigint
|
||||
- wait_for: no longer need to call job_signal_status when checking
|
||||
whether a comsub shell reaped a child that died due to SIGINT; code
|
||||
now uses child_caught_sigint
|
||||
|
||||
7/30
|
||||
----
|
||||
@@ -9225,13 +9225,13 @@ general.h
|
||||
|
||||
builtins/enable.def
|
||||
- dyn_load_builtin: attempt to execute a function named BUILTIN_builtin_load,
|
||||
where BUILTIN is the name of the command being loaded. If that function
|
||||
returns 0, the load fails
|
||||
where BUILTIN is the name of the command being loaded. If that
|
||||
function returns 0, the load fails
|
||||
- dyn_unload_builtin: attempt to execute a function named BUILTIN_builtin_unload,
|
||||
where BUILTIN is the name of the command being unloaded. It offers a
|
||||
dynamic builtin a way to clean up after itself. Inspired by suggestion
|
||||
from Piotr Grzybowski <narsil.pl@gmail.com> in response to a bug report
|
||||
from isabella parakiss <izaberina@gmail.com>
|
||||
dynamic builtin a way to clean up after itself. Inspired by
|
||||
suggestion from Piotr Grzybowski <narsil.pl@gmail.com> in response
|
||||
to a bug report from isabella parakiss <izaberina@gmail.com>
|
||||
|
||||
8/6
|
||||
---
|
||||
@@ -9265,12 +9265,12 @@ lib/readline/readline.c
|
||||
map passed as an argument. Without this, vi mode doesn't call
|
||||
rl_vi_set_last when it should
|
||||
- _rl_dispatch_subseq: if redoing a vi mode command with `.'
|
||||
(_rl_vi_redoing != 0) in callback mode and we're indirecting into another
|
||||
keymap that has shadowed the key corresponding to the command we are
|
||||
redoing, just call _rl_subseq_result immediately: vi redo doesn't need
|
||||
to read any additional input, and rl_vi_redo assumes that a single call
|
||||
to rl_dispatch is sufficient. Fixes bug reported by Carlos Pita
|
||||
<carlosjosepita@gmail.com>
|
||||
(_rl_vi_redoing != 0) in callback mode and we're indirecting into
|
||||
another keymap that has shadowed the key corresponding to the command
|
||||
we are redoing, just call _rl_subseq_result immediately: vi redo
|
||||
doesn't need to read any additional input, and rl_vi_redo assumes
|
||||
that a single call to rl_dispatch is sufficient. Fixes bug reported
|
||||
by Carlos Pita <carlosjosepita@gmail.com>
|
||||
|
||||
8/7
|
||||
---
|
||||
@@ -9329,10 +9329,10 @@ bashhist.h
|
||||
8/11
|
||||
----
|
||||
doc/{bash.1,bashref.texi}
|
||||
- GROUPS,FUNCNAME: change description to note that assignments are silently
|
||||
ignored, but do not return an error (which would constitute an assignment
|
||||
error and cause posix mode shells to abort). Problem pointed out by
|
||||
Grzegorz Bajson <gbajson@gmail.com>
|
||||
- GROUPS,FUNCNAME: change description to note that assignments are
|
||||
silently ignored, but do not return an error (which would constitute
|
||||
an assignment error and cause posix mode shells to abort). Problem
|
||||
pointed out by Grzegorz Bajson <gbajson@gmail.com>
|
||||
|
||||
8/12
|
||||
----
|
||||
@@ -9349,10 +9349,10 @@ subst.c
|
||||
----
|
||||
jobs.c
|
||||
- {save,restore}_pipeline: saved_pipeline now a linked list of pipelines,
|
||||
new ones allocated in save_pipeline and freed in restore_pipeline. This
|
||||
allow multiple nested calls to save_pipeline (e.g., in traps and then in
|
||||
process substitution). Fix for bug reported by isabella parakiss
|
||||
<izaberina@gmail.com>
|
||||
new ones allocated in save_pipeline and freed in restore_pipeline.
|
||||
This allow multiple nested calls to save_pipeline (e.g., in traps
|
||||
and then in process substitution). Fix for bug reported by isabella
|
||||
parakiss <izaberina@gmail.com>
|
||||
|
||||
print_cmd.c
|
||||
- named_function_string: if printing a function with the same name as a
|
||||
@@ -9390,8 +9390,8 @@ configure.ac,Makefile.in,builtins/Makefile.in
|
||||
----
|
||||
subst.c
|
||||
- shell_expand_word_list: if make_internal_declare fails, make sure to
|
||||
propagate that error return back and make the assignment statement fail.
|
||||
Fixes seg fault reported by Sergey Tselikh <stselikh@gmail.com>
|
||||
propagate that error return back and make the assignment statement
|
||||
fail. Fixes seg fault reported by Sergey Tselikh <stselikh@gmail.com>
|
||||
|
||||
8/20
|
||||
----
|
||||
@@ -9407,8 +9407,8 @@ braces.c
|
||||
to avoid a memory leak
|
||||
|
||||
trap.c
|
||||
- maybe_set_return_trap: set the RETURN trap to string if it's not already
|
||||
trapped, in the same way as the debug and error traps
|
||||
- maybe_set_return_trap: set the RETURN trap to string if it's not
|
||||
already trapped, in the same way as the debug and error traps
|
||||
|
||||
execute_cmd.c
|
||||
- execute_function: use maybe_set_return_trap to allow functions to set
|
||||
@@ -9470,12 +9470,12 @@ sig.c
|
||||
8/25
|
||||
----
|
||||
subst.h
|
||||
- SD_HISTEXP: new flag for skip_to_delim, indicates we are looking for the
|
||||
history expansion character (special double quote handling)
|
||||
- skip_to_delim: handle SD_HISTEXP flag, changes double quote handling to
|
||||
be similar to history library: don't call skip_double_quote, make sure
|
||||
single quotes aren't special in double quotes, but continue to skip
|
||||
over $(), ${}, and other similar constructs
|
||||
- SD_HISTEXP: new flag for skip_to_delim, indicates we are looking for
|
||||
the history expansion character (special double quote handling)
|
||||
- skip_to_delim: handle SD_HISTEXP flag, changes double quote handling
|
||||
to be similar to history library: don't call skip_double_quote, make
|
||||
sure single quotes aren't special in double quotes, but continue to
|
||||
skip over $(), ${}, and other similar constructs
|
||||
|
||||
8/27
|
||||
----
|
||||
@@ -9559,3 +9559,14 @@ lib/readline/util.c
|
||||
|
||||
lib/readline/readline.c
|
||||
- HAVE_DECL_AUDIT_USER_TTY: correct #define check
|
||||
|
||||
9/13
|
||||
----
|
||||
shell.c
|
||||
- read_from_stdin: make sure value set to 1 appropriately if the shell
|
||||
is reading from standard input, as Posix seems to specify (?)
|
||||
|
||||
lib/readline/kill.c
|
||||
- _rl_copy_to_kill_ring: don't assume that rl_kill_ring has been
|
||||
allocated if _rl_last_command_was_kill is non-zero; make sure it's
|
||||
non-null before indexing into it
|
||||
|
||||
@@ -96,6 +96,17 @@ bb. Aliases whose value ends in a shell metacharacter now expand in a way to
|
||||
allow them to be `pasted' to the next token, which can potentially change
|
||||
the meaning of a command (e.g., turning `&' into `&&').
|
||||
|
||||
cc. `make install' now installs the example loadable builtins and a set of
|
||||
bash headers to use when developing new loadable builtins.
|
||||
|
||||
dd. `enable -f' now attempts to call functions named BUILTIN_builtin_load when
|
||||
loading BUILTIN, and BUILTIN_builtin_unload when deleting it. This allows
|
||||
loadable builtins to run initialization and cleanup code.
|
||||
|
||||
ee. There is a new BASH_LOADABLES_PATH variable containing a list of directories
|
||||
where the `enable -f' command looks for shared objects containing loadable
|
||||
builtins.
|
||||
|
||||
2. New Features in Readline
|
||||
|
||||
a. The history truncation code now uses the same error recovery mechansim as
|
||||
|
||||
@@ -96,6 +96,17 @@ bb. Aliases whose value ends in a shell metacharacter now expand in a way to
|
||||
allow them to be `pasted' to the next token, which can potentially change
|
||||
the meaning of a command (e.g., turning `&' into `&&').
|
||||
|
||||
cc. `make install' now installs the example loadable builtins and a set of
|
||||
bash headers to use when developing new loadable builtins.
|
||||
|
||||
dd. `enable -f' now attempts to call functions named BUILTIN_builtin_load when
|
||||
loading BUILTIN, and BUILTIN_builtin_unload when deleting it. This allows
|
||||
loadable builtins to run initialization and cleanup code.
|
||||
|
||||
ee. There is a new BASH_LOADABLES_PATH variable containing a list of directories
|
||||
where the `enable -f' command looks for shared objects containing loadable
|
||||
builtins.
|
||||
|
||||
2. New Features in Readline
|
||||
|
||||
a. The history truncation code now uses the same error recovery mechansim as
|
||||
|
||||
+1
-1
@@ -97,7 +97,7 @@ _rl_copy_to_kill_ring (text, append)
|
||||
int slot;
|
||||
|
||||
/* First, find the slot to work with. */
|
||||
if (_rl_last_command_was_kill == 0)
|
||||
if (_rl_last_command_was_kill == 0 || rl_kill_ring == 0)
|
||||
{
|
||||
/* Get a new slot. */
|
||||
if (rl_kill_ring == 0)
|
||||
|
||||
@@ -712,13 +712,20 @@ main (argc, argv, env)
|
||||
arg_index++;
|
||||
}
|
||||
else if (interactive == 0)
|
||||
/* In this mode, bash is reading a script from stdin, which is a
|
||||
pipe or redirected file. */
|
||||
{
|
||||
/* In this mode, bash is reading a script from stdin, which is a
|
||||
pipe or redirected file. */
|
||||
#if defined (BUFFERED_INPUT)
|
||||
default_buffered_input = fileno (stdin); /* == 0 */
|
||||
default_buffered_input = fileno (stdin); /* == 0 */
|
||||
#else
|
||||
setbuf (default_input, (char *)NULL);
|
||||
setbuf (default_input, (char *)NULL);
|
||||
#endif /* !BUFFERED_INPUT */
|
||||
read_from_stdin = 1;
|
||||
}
|
||||
else if (arg_index == argc)
|
||||
/* "If there are no operands and the -c option is not specified, the -s
|
||||
option shall be assumed." */
|
||||
read_from_stdin = 1;
|
||||
|
||||
set_bash_input ();
|
||||
|
||||
|
||||
Reference in New Issue
Block a user