Imported from ../bash-2.01.tar.gz.
This commit is contained in:
Jari Aalto
parent
ccc6cda312
commit
d166f04881
304 changed files with 14702 additions and 13012 deletions
398
CHANGES
398
CHANGES
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@ -1,3 +1,401 @@
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This document details the changes between this version, bash-2.01-release,
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and the previous version, bash-2.01-beta2.
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1. Changes to Bash
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a. The `distclean' target should remove the `printenv' executable if it
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has been created.
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b. The test suite was changed slightly to ensure that the error messages
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are printed in English.
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c. A bug that caused the shell to dump core when a filename containing a
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`/' was passed to `hash' was fixed.
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d. Pathname canonicalization now leaves a leading `//' intact, as POSIX.1
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requires.
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e. A memory leak when completing commands was fixed.
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f. A memory leak that occurred when checking the hash table for commands
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with relative paths was fixed.
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------------------------------------------------------------------------------
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This document details the changes between this version, bash-2.01-beta2,
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and the previous version, bash-2.01-beta1.
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1. Changes to Bash
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a. The `ulimit' builtin translates RLIM_INFINITY to the hard limit only if
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the current (soft) limit is less than or equal to the hard limit.
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b. Fixed a bug that caused the bash emulation of strcasecmp to produce
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incorrect results.
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c. A bug that caused memory to be freed twice when a trap handler resets
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the trap more than once was fixed.
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d. A bug that caused machines where sizeof (pointer) > sizeof (int) to
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fail (and possibly dump core) when trying to unwind-protect a null
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pointer was fixed.
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e. The startup files should not be run with job control enabled. This fix
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allows SIGINT to once again interrupt startup file execution.
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f. Bash should not change the SIGPROF handler if it is set to something
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other than SIG_DFL.
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g. The completion code that provides bash-specific completions for readline
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now quotes characters that the readline code would treat as word break
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characters if they appear in a file name.
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h. The completion code now correctly quotes filenames containing a `!',
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even if the user attempted to use double quotes when attempting
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completion.
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i. A bug that caused the shell to dump core when `disown' was called without
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arguments and there was no current job was fixed.
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j. A construct like $((foo);bar) is now processed as a command substitution
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rather than as a bad arithmetic substitution.
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k. A couple of bugs that caused `fc' to not obey the `cmdhist' and `lithist'
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shell options when editing and re-executing a series of commands were
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fixed.
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l. A fix was made to the grammar -- the list of commands between `do' and
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`done' in the body of a `for' command should be treated the same as a
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while loop.
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2. Changes to Readline
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a. A couple of bugs that caused the history search functions to attempt to
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free a NULL pointer were fixed.
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b. If the C library provides setlocale(3), readline does not need to look
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at various environment variables to decide whether or not to go into
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eight-bit mode automatically -- just check whether the current locale
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is not `C' or `POSIX'.
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c. If the filename completion function finds that a directory was not closed
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by a previous (interrupted) completion, it closes the directory with
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closedir().
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3. New Features in Bash
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a. New bindable readline commands: history-and-alias-expand-line and
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alias-expand-line. The code was always in there, there was just no
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way to execute it.
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------------------------------------------------------------------------------
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This document details the changes between this version, bash-2.01-beta1,
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and the previous version, bash-2.01-alpha1.
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1. Changes to Bash
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a. Fixed a problem that could cause file descriptors used for process
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substitution to conflict with those used explicitly in redirections.
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b. Made it easier to regenerate configure if the user changes configure.in.
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c. ${GROUPS[0]} should always be the primary group, even on systems without
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multiple groups.
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d. Spelling correction is no longer enabled by default.
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e. Fixes to quoting problems in `bashbug'.
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f. OS-specific configuration changes were made for: Irix 6.
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g. OS-specific code changes were made for: QNX.
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h. A more meaningful message is now printed when the file in /tmp for a
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here document cannot be created.
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i. Many changes to the shell's variable initialization code to speed
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non-interactive startup.
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j. Changes to the non-job-control code so that it does not try to open
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/dev/tty.
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k. The output of `set' and `export' is once again sorted, as POSIX wants.
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l. Fixed a problem caused by a recursive call reparsing the value of
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$SHELLOPTS.
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m. The tilde code no longer calls getenv() when it's compiled as part of
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the shell, which should eliminate problems on systems that cannot
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redefine getenv(), like the NeXT OS.
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n. Fixed a problem that caused `bash -o' or `bash +o' to not list all
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the shell options.
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o. Fixed `ulimit' to convert RLIM_INFINITY to the appropriate hard limit
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only if the hard limit is greater than the current (soft) limit.
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p. Fixed a problem that arose when building bash in a different directory
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than the source and y.tab.[ch] were remade with something other than
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bison. This came up most often on NetBSD.
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q. Fixed a problem with completion -- it thought that `pwd`/[TAB] indicated
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an unfinished command completion (`/), which generated errors.
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r. The bash special tilde expansions (~-, ~+) are now attempted before
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calling the standard tilde expansion code, which should eliminate the
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problems people have been seeing with this on Solaris 2.5.1.
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s. Added support for <stdarg.h> to places where it was missing.
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t. Changed the code that reads the output of a command substitution to not
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go through stdio. This reduces the memory requirements and is faster.
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u. A number of changes to speed up export environment creation were made.
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v. A number of memory leaks were fixed as the result of running the test
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scripts through Purify.
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w. Fixed a bug that caused subshells forked to interpret executable
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scripts without a leading `#!' to not reinitialize the values of
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the shell options.
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2. Changes to Readline
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a. History library has less `#ifdef SHELL' code -- abstracted stuff out
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into application-specific function hooks.
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b. Readline no longer calls getenv() if it's compiled as part of the shell,
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which should eliminate problems on systems that cannot redefine getenv(),
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like the NeXT OS.
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c. Fixed translation of ESC when `untranslating' macro values.
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d. The region kill operation now fixes the mark if it ends up beyond the
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boundaries of the line after the region is deleted.
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3. New Features in Bash
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a. New argument for `configure': `--with-curses'. This can be used to
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override the selection of the termcap library on systems where it is
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deficient.
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------------------------------------------------------------------------------
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This document details the changes between this version, bash-2.01-alpha1,
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and the previous version, bash-2.0-release.
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1. Changes to Bash
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a. System-specific configuration changes for: FreeBSD, SunOS4, Irix,
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MachTen, QNX 4.2, Harris Night Hawk, SunOS5.
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b. System-specific code changes were made for: Linux, 4.4 BSD, QNX 4.2,
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HP-UX, AIX 4.2.
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c. A bug that caused the exec builtin to fail because the full pathname of
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the command could not be found was fixed.
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d. The code that performs output redirections is now more resistant to
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race conditions and possible security exploits.
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e. A bug that caused the shell to dump core when performing pattern
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substitutions on variable values was fixed.
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f. More hosts are now recognized by the auto-configuration mechanism
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(OpenBSD, QNX, others).
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g. Assignments to read-only variables that attempt to convert them to
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arrays are now errors.
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h. A bug that caused shell scripts using array assignments in POSIX mode
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to exit after the assignment was performed was fixed.
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i. The substring expansion code is now more careful about running off the
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ends of the expanded variable value.
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j. A bug that caused completion to fail if a backquoted command substitution
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appeared anywhere on the line was fixed.
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k. The `source' builtin no longer turns off history if it has been enabled
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in a non-interactive shell.
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l. A bug that caused the shell to crash when `disown' was given a pid
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instead of a job number was fixed.
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m. The `cd' spelling correction code will not try to change to `.' if no
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directory entries match a single-character argument.
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n. A bad variable name supplied to `declare', `export', or `readonly' no
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longer causes a non-interactive shell in POSIX mode to exit.
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o. Some fixes were made to the test suite to handle peculiarities of
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various Unix versions.
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p. The bash completion code now quotes characters that readline would
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treat as word breaks for completion but are not shell metacharacters.
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q. Bad options supplied at invocation now cause a usage message to be
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displayed.
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r. Fixes were made to the code that handles DEBUG traps so that the trap
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string is not freed inappropriately.
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s. Some changes were made to the bash debugger in examples/bashdb -- it
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should be closer to working now.
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t. A problem that caused the default filename used for mail checking to be
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wrong was fixed.
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u. A fix was made to the `echo' builtin so that NUL characters printed with
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`echo -e' do not cause the output to be truncated.
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v. A fix was made to the job control code so that the shell behaves better
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when monitor mode is enabled in a non-interactive shell.
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w. Bash no longer catches all of the terminating signals in a non-
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interactive shell until a trap is set on EXIT, which should result in
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quicker startup.
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x. A fix was made to the command timing code so that `time' can be used in
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a loop.
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y. A fix was made to the parser so that `((cmd); cmd2)' is now parsed as
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a nested subshell rather than strictly as an (errnoeous) arithmetic
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command.
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z. A fix was made to the globbing code so that it correctly matches quoted
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filenames beginning with a `.'.
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aa. A bug in `fc' that caused some multi-line commands to not be stored as
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one command in the history when they were re-executed after editing
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(with `fc -e') was fixed.
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bb. The `ulimit' builtin now attempts to catch some classes of integer
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overflows.
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cc. The command-oriented-history code no longer attempts to add `;'
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inappropriately when a newline appears while reading a $(...) command
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substitution.
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dd. A bug that caused the shell to dump core when `help --' was executed
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was fixed.
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ee. A bug that caused the shell to crash when an unset variable appeared
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in the body of a here document after `set -u' had been executed was
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fixed.
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ff. Implicit input redirections from /dev/null for asynchronous commands
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are now handled better.
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gg. A bug that caused the shell to fail to compile when configured with
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`--disable-readline' was fixed.
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hh. The globbing code should now be interruptible.
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ii. Bash now notices when the `kill' builtin is used to send SIGCONT to a
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stopped job and adjusts the data structures accordingly, as if `bg' had
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been executed instead.
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jj. A bug that caused the shell to crash when mixing calls to `getopts'
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and `shift' on the same set of positional parameters was fixed.
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kk. The command printing code now preserves the `-p' flag to `time'.
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ll. The command printing code now handles here documents better when there
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are other redirections associated with the command.
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mm. The special glibc environment variable (NNN_GNU_nonoption_argv_flags_)
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is no longer placed into the environment of executed commands -- users
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of glibc had too many problems with it.
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nn. Reorganized the code that generates signames.h. The signal_names list
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is now more complete but may be slightly different (SIGABRT is favored
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over SIGIOT, for example). The preferred signal names are those
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listed in the POSIX.2 standard.
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oo. `bashbug' now uses a filename shorter than 14 characters for its
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temporary file, and asks for confirmation before sending the bug
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report.
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pp. A bug that caused TAB completion in vi editing mode to not be turned
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off when `set -o posix' was executed or back on when `set +o posix'
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was executed was fixed.
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qq. A bug in the brace expansion code that caused brace expansions appearing
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in new-style $(...) command substitutions to be inappropriately expanded
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was fixed.
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rr. A bug in the readline hook shell-expand-line that could cause memory to
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be inappropriately freed was fixed.
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ss. A bug that caused some arithmetic expressions containing `&&' and `||'
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to be parsed with the wrong precedence has been fixed.
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tt. References to unbound variables after `set -u' has been executed now
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cause the shell to exit immediately, as they should.
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uu. A bug that caused the shell to exit inappropriately when `set -e' had
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been executed and a command's return status was being inverted with the
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`!' reserved word was fixed.
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vv. A bug that could occasionally cause the shell to crash with a
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divide-by-zero error when timing a command was fixed.
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ww. A bug that caused parameter pattern substitution to leave stray
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backslashes in the replacement string when the expression is in
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double quotes was fixed.
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xx. The `break' and `continue' builtins now break out of all loops when an
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invalid count argument is supplied.
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yy. Fixed a bug that caused PATH to be set to the empty string if
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`command -p' is executed with PATH unset.
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zz. Fixed `kill -l signum' to print the signal name without the `SIG' prefix,
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as POSIX specifies.
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aaa. Fixed a bug that caused the shell to crash while setting $SHELLOPTS
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if there were no shell options set.
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bbb. Fixed `export -p' and `readonly -p' so that when the shell is in POSIX
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mode, their output is as POSIX.2 specifies.
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ccc. Fixed a bug in `readonly' so that `readonly -a avar=(...)' actually
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creates an array variable.
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ddd. Fixed a bug that prevented `time' from correctly timing background
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pipelines.
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2. Changes to Readline
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a. A bug that caused an extra newline to be printed when the cursor was on
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an otherwise empty line was fixed.
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b. An instance of memory being used after it was freed was corrected.
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c. The redisplay code now works when the prompt is longer than the screen
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width.
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d. `dump-macros' is now a bindable name, as it should have been all along.
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e. Non-printable characters are now expanded when displaying macros and
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their values.
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f. The `dump-variables' and `dump-macros' commands now output a leading
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newline if they're called as the result of a key sequence, rather
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than directly by an application.
|
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|
||||
3. New Features in Bash
|
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|
||||
a. There is a new builtin array variable: GROUPS, the set of groups to which
|
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the user belongs. This is used by the test suite.
|
||||
|
||||
4. New Features in Readline
|
||||
|
||||
a. If a key sequence bound to `universal-argument' is read while reading a
|
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numeric argument started with `universal-argument', it terminates the
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argument but is otherwise ignored. This provides a way to insert multiple
|
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instances of a digit string, and is how GNU emacs does it.
|
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|
||||
------------------------------------------------------------------------------
|
||||
This document details the changes between this version, bash-2.0-release,
|
||||
and the previous version, bash-2.0-beta3.
|
||||
|
||||
|
|
|
|||
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