Imported from ../bash-2.05a.tar.gz.
This commit is contained in:
Jari Aalto
parent
28ef6c316f
commit
f73dda092b
303 changed files with 37069 additions and 28812 deletions
530
CHANGES
530
CHANGES
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@ -1,3 +1,533 @@
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This document details the changes between this version, bash-2.05a-release,
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and the previous version, bash-2.05a-rc1.
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1. Changes to Bash
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a. Fixed the `printf' builtin so that the variable name supplied as an
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argument to a %n conversion must be a valid shell identifier.
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b. Improved the random number generator slightly.
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c. Changes to configuration to not put -I/usr/include into $CFLAGS, since
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it messes up some includes.
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d. Corrected description of POSIXLY_CORRECT in man page and info manual.
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e. Fixed a couple of cases of incorrect function prototypes that sneaked
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through and caused compilation problems.
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f. A few changes to avoid potential core dumps in the programmable completion
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code.
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g. Fixed a configure problem that could cause a non-existent file to show
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up in LIBOBJS.
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h. Fixed a configure problem that could cause siglist.o to not be built when
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required.
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i. Changes to the strtoimax and strtoumax replacement functions to work
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around buggy compilers.
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j. Fixed a problem with the snprintf replacement function that could
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potentially cause a core dump.
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2. Changes to Readline
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||||
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a. Fixed a locale-specific problem in the vi-mode `goto mark' command.
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b. Fixed Makefile to not put -I/usr/include into CFLAGS, since it can cause
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include file problems.
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------------------------------------------------------------------------------
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This document details the changes between this version, bash-2.05a-rc1,
|
||||
and the previous version, bash-2.05a-beta1.
|
||||
|
||||
1. Changes to Bash
|
||||
|
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a. Fixed the snprintf replacement to correctly implement the `alternate form'
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of the %g and %G conversions.
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b. Fixed snprintf to correctly handle the optional precision with the %g and
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%G conversions.
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c. Fixed the arithmetic evaluation code to correct the values of `@' and `_'
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when translating base-64 constants (they were backwards).
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d. New library functions for formatting long and long long ints.
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e. Fixed a few places where negative array subscripts could have occurred,
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mostly as the result of systems using signed characters.
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f. Fixed a few places that assumed a pid_t was no wider than an int.
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g. Fixed the `maildir' mail checking code to work on systems where a
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`struct stat' doesn't include an `st_blocks' member.
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h. Fixed snprintf to make `unsigned long long' conversion formats (%llu)
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work better.
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i. Fixed snprintf to not print a sign when asked to do an unsigned conversion.
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j. Made configure changes to avoid compiling empty source files in lib/sh.
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|
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k. New replacement functions (if necessary) for strtoull, strtoll, strtoimax,
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strtoumax.
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l. The `printf' builtin now handles the `ll' and `j' length modifiers
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||||
directly, since they can affect the type and width of the argument
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passed to printf(3).
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m. Renamed a number of the bash-specific autoconf macros in aclocal.m4 to
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have more sytematic naming, with accompanying changes to configure.in.
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n. Fixed snprintf to handle long doubles and the %a/%A conversions by
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falling back to sprintf, as long as sprintf supports them.
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o. Fixed return value from vsnprintf/snprintf to be the number of characters
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that would have been printed, even if that number exceeds the buffer
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size passed as an argument.
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p. Bash no longer attempts to define its own versions of some ctype macros
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if they are implemented as functions in libc but not as macros in
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<ctype.h>.
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q. Changed the variable printing code (used by `set', `export', etc.) to
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not use the $'...' syntax when in posix mode, since that caused
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interoperability problems with other shells (most notably with autoconf).
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When not in posix mode, it uses $'...' if the string to be printed
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contains non-printing characters and regular single quotes otherwise.
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r. snprintf now recognizes the %F conversion.
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s. Fixed a bug that could cause the wrong status to be returned by a shell
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function when the shell is compiled without job control and a null
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command containing a command substutition was executed in the function.
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t. When in posix mode, the default value for MAILCHECK is 600.
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u. Bash only initializes FUNCNAME, GROUPS, and DIRSTACK as special variables
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if they're not in the initial environment.
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v. If SECONDS appears in the initial environment with a valid integer value,
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bash uses that as the starting value, as if an assignment had been
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performed.
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w. Bash no longer auto-exports HOME, PATH, SHELL, or TERM, even though it
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gives them default values if they don't appear in the initial environment.
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x. Bash no longer auto-exports HOSTNAME, HOSTTYPE, MACHTYPE, or OSTYPE,
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even if it assigns them default values.
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y. Bash no longer removes the export attribute from SSH_CLIENT or SSH2_CLIENT
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if they appear in the initial environment.
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z. Bash no longer attempts to discover if it's being run by sshd in order to
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run the startup files. If the SSH_SOURCE_BASHRC is uncommented in
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config-top.h it will attempt to do so as previously, but that's commented
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out in the distributed version.
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aa. Fixed a typo in the code that tests for LC_NUMERIC.
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bb. The POSIXLY_CORRECT shell variable and its effects are now documented.
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cc. Some changes to several of the support shell scripts included in the
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definitions to try to avoid race conditions and attacks.
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dd. Several changes to avoid warnings from `gcc -Wall'.
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ee. Fixed a problem with the `unset' builtin that could cause incorrect
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results if asked to unset a variable and an array subscript in the
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same command.
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ff. A few changes to the shell's temporary file creation code to avoid
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potential file descriptor leaks and to prefer the system's idea of
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the temporary directory to use.
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gg. Fixes to build with the C alloca in lib/malloc/alloca.c if the system
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requires it but the shell has been configured --without-bash-malloc.
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hh. Updated the documentation to note that only interactive shells resend
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SIGHUP to all jobs before exiting.
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ii. Fixes to only pass unquoted tilde words to tilde_expand, rather than
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rely on tilde_expand or getpwnam(3) to handle the quotes (MacOS 10.x
|
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will remove backslashes in any login name passed to getpwnam(3)).
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jj. Small change from Paul Eggert to make LINENO right in commands run with
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`bash -c'.
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2. New Features in Bash
|
||||
|
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a. The `printf' builtin now handles the %a and %A conversions if they're
|
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implemented by printf(3).
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||||
|
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b. The `printf' builtin now handles the %F conversion (just about like %f).
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c. The `printf' builtin now handles the %n conversion like printf(3). The
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corresponding argument is the name of a shell variable to which the
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value is assigned.
|
||||
|
||||
3. Changes to Readline
|
||||
|
||||
a. Fixed a few places where negative array subscripts could have occurred.
|
||||
|
||||
b. Fixed the vi-mode code to use a better method to determine the bounds of
|
||||
the array used to hold the marks.
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||||
|
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c. Fixed the defines in chardefs.h to work better when chars are signed.
|
||||
|
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d. Fixed configure.in to use the new names for bash autoconf macros.
|
||||
|
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e. Readline no longer attempts to define its own versions of some ctype
|
||||
macros if they are implemented as functions in libc but not as macros in
|
||||
<ctype.h>.
|
||||
|
||||
f. Fixed a problem where rl_backward could possibly set point to before
|
||||
the beginning of the line.
|
||||
|
||||
------------------------------------------------------------------------------
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||||
This document details the changes between this version, bash-2.05a-beta1,
|
||||
and the previous version, bash-2.05a-alpha1.
|
||||
|
||||
1. Changes to Bash
|
||||
|
||||
a. Fixed a bug in the evalution of arithmetic `for' statements when the
|
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expanded expression is NULL.
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||||
|
||||
b. Fixed an unassigned variable problem in the redirection printing code.
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||||
|
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c. Added more prototypes to extern function declarations in the header
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||||
files and to static function declarations in C source files.
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|
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d. Make sure called functions have a prototype in scope, to get the arguments
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and return values right instead of casting. Removed extern function
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||||
declarations from C source files that were already included in header
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||||
files.
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||||
|
||||
e. Changed some function arguments to use function typedefs in general.h so
|
||||
the prototypes can be checked. The only use of Function and VFunction
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||||
now is for unwind-protects.
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||||
|
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f. More const changes to function arguments and appropriate variables.
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|
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g. Changed the mail checking support to handle `maildir'-style mail
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||||
directories.
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||||
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h. Augmented the bash malloc to pass in the file and line number information
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||||
for each malloc, realloc, and free. This should result in better error
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messages.
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||||
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i. The `old' gnu malloc is no longer a configuration option.
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|
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j. Augmented the bash malloc with optional tracing and registering allocated
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and freed memory.
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k. Prompt string decoding now saves and restores the value of $? when it
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||||
expands the prompt string, so command substitutions don't change $?.
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|
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i. Array indices are now `long', since shell arithmetic is performed as long,
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and the internal arrayind_t type is used consistently.
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||||
|
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j. Some more `unsigned char *' fixes from Paul Eggert.
|
||||
|
||||
k. Fixed a bad call to builtin_error that could cause core dumps when making
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||||
local variables.
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||||
|
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l. `return' may no longer be used to terminate a `select' command, for
|
||||
compatibility with ksh.
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||||
|
||||
m. Changed code that reads octal numbers to do a better job of detecting
|
||||
overflows.
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||||
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||||
n. The time formatting code no longer uses absolute indices into a buffer,
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||||
because the buffer size changes depending on the size of a `time_t'.
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||||
|
||||
o. `umask' now prints four digits when printing in octal mode, for
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||||
compatibility with other shells.
|
||||
|
||||
p. Lots of changes to the `printf' builtin from Paul Eggert: it handles `L'
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||||
formats and long doubles better, and internal functions have been
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||||
simpified where appropriate.
|
||||
|
||||
q. Some `time_t' fixes for machines were a time_t is bigger than a long.
|
||||
|
||||
r. Replaced some bash-specific autoconf macros with standard equivalents.
|
||||
|
||||
s. Improvmed the code that constructs temporary filenames to make the
|
||||
generated names a bit more random.
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||||
|
||||
t. Added code that checks for ascii before calling any of the is* ctype
|
||||
functions.
|
||||
|
||||
u. Changed some places where a `char' was used as an array subscript to use
|
||||
`unsigned char', since a `char' can be negative if it's signed by default.
|
||||
|
||||
v. Lots of changes to the `ulimit' builtin from Paul Eggert to add support
|
||||
for the new POSIX-200x RLIM_SAVED_CUR and RLIM_SAVED_MAX values and
|
||||
simplify the code.
|
||||
|
||||
w. `ulimit' now prints the description of a resource in any error message
|
||||
relating to fetching or setting that resource's limits.
|
||||
|
||||
x. The `snprintf' replacement now computes maximum values at compile
|
||||
time rather than using huge constants for things like long long.
|
||||
|
||||
y. Interactive shells now ignore `set -n'.
|
||||
|
||||
z. Changed the malloc bookkeeping information so that it's now 8 bytes
|
||||
instead of 12 on most 32-bit machines (saving 4 bytes per allocation),
|
||||
restoring 8-byte alignment.
|
||||
|
||||
aa. The malloc error reporting code now attempts to print the file and line
|
||||
number of the call that caused the error.
|
||||
|
||||
bb. Changed the redirection error reporting code to catch EBADF errors and
|
||||
report the file descriptor number rather than the file being redirected
|
||||
to or from (e.g., things like `exec 4242<x' where 4242 is an out-of-range
|
||||
file descriptor).
|
||||
|
||||
cc. `printf', `echo -e', and the $'...' code now process only two hex digits
|
||||
after a `\x' escape sequence for compatibility with other shells, and
|
||||
the documentation was changed to note that the octal and hex escape
|
||||
sequences result in an eight-bit value rather than strict ASCII.
|
||||
|
||||
2. Changes to Readline
|
||||
|
||||
a. The completion code now attempts to do a better job of preserving the
|
||||
case of the word the user typed if ignoring case in completions.
|
||||
|
||||
b. Readline defaults to not echoing the input and lets the terminal
|
||||
initialization code enable echoing if there is a controlling terminal.
|
||||
|
||||
c. The key binding code now processes only two hex digits after a `\x'
|
||||
escape sequence, and the documentation was changed to note that the
|
||||
octal and hex escape sequences result in an eight-bit value rather
|
||||
than strict ASCII.
|
||||
|
||||
3. New Features in Bash
|
||||
|
||||
a. The builtin `ulimit' now takes two new non-numeric arguments: `hard',
|
||||
meaning the current hard limit, and `soft', meaning the current soft
|
||||
limit, in addition to `unlimited'
|
||||
|
||||
b. `ulimit' now prints the option letter associated with a particular
|
||||
resource when printing more than one limit.
|
||||
|
||||
c. `ulimit' prints `hard' or `soft' when a value is not `unlimited' but is
|
||||
one of RLIM_SAVED_MAX or RLIM_SAVED_CUR, respectively.
|
||||
|
||||
4. New Features in Readline
|
||||
|
||||
a. New bindable variable `history-preserve-point'. If set, the history
|
||||
code attempts to place the user at the same location on each history
|
||||
line retrived with previous-history or next-history.
|
||||
|
||||
------------------------------------------------------------------------------
|
||||
This document details the changes between this version, bash-2.05a-alpha1,
|
||||
and the previous version, bash-2.05-release.
|
||||
|
||||
1. Changes to Bash
|
||||
|
||||
a. Better checks in the redirection code for write errors.
|
||||
|
||||
b. bashbug now uses $TMPDIR, defaulting to /tmp, and uses mktemp(1) more
|
||||
portably.
|
||||
|
||||
c. System-specific configuration changes for: Interix, OpenBSD, FreeBSD,
|
||||
MacOS X.
|
||||
|
||||
d. Some more `const' cleanups through the code.
|
||||
|
||||
e. Fixed a typo in the /dev/fd redirection code, better checks for valid
|
||||
numeric fds in /dev/fd.
|
||||
|
||||
f. Fixed many parts of the shell to handle integer overflow more gracefully
|
||||
and to do more stringent checks for valid numbers.
|
||||
|
||||
g. Fixed mksignames to include config.h.
|
||||
|
||||
h. Fixed an uninitialized variable problem that could cause the shell to core
|
||||
dump when replacing characters in a string.
|
||||
|
||||
i. New mechanism for updating the patch level when official patches are
|
||||
released (patchlevel.h).
|
||||
|
||||
j. configure.in changed to no longer require external files _distribution and
|
||||
_patchlevel.
|
||||
|
||||
k. Fixed non-interactive shell initialization problem when bash started as
|
||||
`bash -i filename'.
|
||||
|
||||
l. Fixed printf builtin conversion error handling to be POSIX.2-conformant.
|
||||
|
||||
m. autoconf-2.52 is now used to build configure; autoconf-2.50 or newer is
|
||||
required. Some of the bash-specific macros were removed, since they are
|
||||
now standard.
|
||||
|
||||
n. Startup files and files read with source or `.' are no longer required to
|
||||
be regular files.
|
||||
|
||||
o. Fixed core dump in builtin printf when user-supplied precision or field
|
||||
width is 0.
|
||||
|
||||
p. Fixed builtin printf to treat a negative field width as a positive field
|
||||
width with left-justification.
|
||||
|
||||
r. New unwind-protect implementation from Paul Eggert.
|
||||
|
||||
s. Fixed an inadvertently-unclosed comment in the bash completion code that
|
||||
caused programmable completions to not add trailing slashes or spaces to
|
||||
completions.
|
||||
|
||||
t. Fixed the process substitution code to cope better when stdin is closed.
|
||||
|
||||
v. Fixes, mostly from Paul Eggert, for a few possible buffer overflows in
|
||||
the shell.
|
||||
|
||||
w. Fixes from Paul Eggert to avoid most of the type casts in the shell code,
|
||||
and use more appropriate types for a number of variables.
|
||||
|
||||
x. Command substition no longer inherits the DEBUG trap.
|
||||
|
||||
y. Some fixes to the process substition code on machines without /dev/fd so
|
||||
that named pipes are not removed inappropriately.
|
||||
|
||||
z. The loadable `getconf' builtin is now much more complete, and will become
|
||||
part of the shell in the future.
|
||||
|
||||
aa. The select command no longer terminates on a `return', so it can be used
|
||||
to return from an enclosing function (as ksh does it).
|
||||
|
||||
bb. Fixed the extended pattern matching code to behave better when presented
|
||||
with incorrectly-formed patterns.
|
||||
|
||||
cc. Some changes were made with the intent of making cross-compilation easier.
|
||||
|
||||
dd. The network code (/dev/tcp and /dev/udp redirections) uses getaddrinfo(3)
|
||||
if it's available, which adds support for IPv6.
|
||||
|
||||
ee. Subshells of login shells no longer source ~/.bash_logout when they exit.
|
||||
|
||||
ff. Fixes so that subshells don't exit inappropriately if the -e option has
|
||||
been set.
|
||||
|
||||
gg. Restricted shells no longer allow functions to be exported.
|
||||
|
||||
hh. Changes to the pattern matching code so extended pattern matching works
|
||||
on systems with deficient shared library implementations, like MacOS X.
|
||||
|
||||
ii. Better error messages when a script with a leading `#!interp' fails
|
||||
to execute because of problems with `interp'.
|
||||
|
||||
jj. Fixed `compgen' to handle the `-o default' option better.
|
||||
|
||||
kk. Fixed the job control code to force an asynchronous process's standard
|
||||
input to /dev/null only if job control is not active.
|
||||
|
||||
ll. Fixed a possible infinite recursion problem when `fc ""=abc' (a null
|
||||
pattern) is used to re-execute a previous command.
|
||||
|
||||
mm. Fixed `declare [-a] var=value' to assign VALUE to element 0 if VAR is an
|
||||
array variable. Similarly for `declare [-a] var[N]=value'. This is like
|
||||
ksh93.
|
||||
|
||||
nn. Fixed a bug that caused `read -a aname' to work even if ANAME had been
|
||||
declared readonly.
|
||||
|
||||
oo. Fixed a possible integer overflow problem when constructing names for
|
||||
temporary files.
|
||||
|
||||
2. New Features in Bash
|
||||
|
||||
a. Added support for DESTDIR installation root prefix, so you can do a
|
||||
`make install DESTDIR=bash-root' and do easier binary packaging.
|
||||
|
||||
b. Added support for builtin printf "'" flag character as per latest POSIX
|
||||
drafts.
|
||||
|
||||
c. Support for POSIX.2 printf(1) length specifiers `j', `t', and `z' (from
|
||||
ISO C99).
|
||||
|
||||
d. New autoconf macro, RL_LIB_READLINE_VERSION, for use by other applications
|
||||
(bash doesn't use very much of what it returns).
|
||||
|
||||
e. `set [-+]o nolog' is recognized as required by the latest POSIX drafts,
|
||||
but ignored.
|
||||
|
||||
f. New read-only `shopt' option: login_shell. Set to non-zero value if the
|
||||
shell is a login shell.
|
||||
|
||||
g. New `\A' prompt string escape sequence; expands to time in 24 HH:MM format.
|
||||
|
||||
h. New `-A group/-g' option to complete and compgen; does group name
|
||||
completion.
|
||||
|
||||
i. New `-t' option to `hash' to list hash values for each filename argument.
|
||||
|
||||
j. New [-+]O invocation option to set and unset `shopt' options at startup.
|
||||
|
||||
k. configure's `--with-installed-readline' option now takes an optional
|
||||
`=PATH' suffix to set the root of the tree where readline is installed
|
||||
to PATH.
|
||||
|
||||
l. The ksh-like `ERR' trap has been added. The `ERR' trap will be run
|
||||
whenever the shell would have exited if the -e option were enabled.
|
||||
It is not inherited by shell functions.
|
||||
|
||||
m. `readonly', `export', and `declare' now print variables which have been
|
||||
given attributes but not set by assigning a value as just a command and
|
||||
a variable name (like `export foo') when listing, as the latest POSIX
|
||||
drafts require.
|
||||
|
||||
n. `bashbug' now requires that the subject be changed from the default.
|
||||
|
||||
o. configure has a new `--enable-largefile' option, like other GNU utilities.
|
||||
|
||||
p. `for' loops now allow empty word lists after `in', like the latest POSIX
|
||||
drafts require.
|
||||
|
||||
3. Changes to Readline
|
||||
|
||||
a. More `const' and type casting fixes.
|
||||
|
||||
b. Changed rl_message() to use vsnprintf(3) (if available) to fix buffer
|
||||
overflow problems.
|
||||
|
||||
c. The completion code no longer appends a `/' or ` ' to a match when
|
||||
completing a symbolic link that resolves to a directory name, unless
|
||||
the match does not add anything to the word being completed. This
|
||||
means that a tab will complete the word up to the full name, but not
|
||||
add anything, and a subsequent tab will add a slash.
|
||||
|
||||
d. Fixed a trivial typo that made the vi-mode `dT' command not work.
|
||||
|
||||
e. Fixed the tty code so that ^S and ^Q can be inserted with rl_quoted_insert.
|
||||
|
||||
f. Fixed the tty code so that ^V works more than once.
|
||||
|
||||
g. Changed the use of __P((...)) for function prototypes to PARAMS((...))
|
||||
because the use of __P in typedefs conflicted g++ and glibc.
|
||||
|
||||
4. New Features in Readline
|
||||
|
||||
a. Added extern declaration for rl_get_termcap to readline.h, making it a
|
||||
public function (it was always there, just not in readline.h).
|
||||
|
||||
b. New #defines in readline.h: RL_READLINE_VERSION, currently 0x0402,
|
||||
RL_VERSION_MAJOR, currently 4, and RL_VERSION_MINOR, currently 2.
|
||||
|
||||
c. New readline variable: rl_readline_version, mirrors RL_READLINE_VERSION.
|
||||
|
||||
d. New bindable boolean readline variable: match-hidden-files. Controls
|
||||
completion of files beginning with a `.' (on Unix). Enabled by default.
|
||||
|
||||
e. The history expansion code now allows any character to terminate a
|
||||
`:first-' modifier, like csh.
|
||||
|
||||
f. The incremental search code remembers the last search string and uses
|
||||
it if ^R^R is typed without a search string.
|
||||
|
||||
------------------------------------------------------------------------------
|
||||
This document details the changes between this version, bash-2.05-release,
|
||||
and the previous version, bash-2.05-beta2.
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue