mirror of
git://slackware.nl/current.git
synced 2024-12-30 10:24:23 +01:00
100 lines
3 KiB
Text
100 lines
3 KiB
Text
|
READLINE PATCH REPORT
|
||
|
|
=====================
|
||
|
|
|
||
|
|
Readline-Release: 8.2
|
||
|
|
Patch-ID: readline82-006
|
||
|
|
|
||
|
|
Bug-Reported-by: Tom de Vries <tdevries@suse.de>
|
||
|
|
Bug-Reference-ID:
|
||
|
|
Bug-Reference-URL: https://lists.gnu.org/archive/html/bug-readline/2022-09/msg00001.html
|
||
|
|
|
||
|
|
Bug-Description:
|
||
|
|
|
||
|
|
This is a variant of the same issue as the one fixed by patch 5. In this
|
||
|
|
case, the signal arrives and is pending before readline calls rl_getc().
|
||
|
|
When this happens, the pending signal will be handled by the loop, but may
|
||
|
|
alter or destroy some state that the callback uses. Readline needs to treat
|
||
|
|
this case the same way it would if a signal interrupts pselect/select, so
|
||
|
|
compound operations like searches and reading numeric arguments get cleaned
|
||
|
|
up properly.
|
||
|
|
|
||
|
|
Patch (apply with `patch -p0'):
|
||
|
|
|
||
|
|
*** ../readline-8.2-patched/input.c 2022-12-22 16:15:48.000000000 -0500
|
||
|
|
--- input.c 2023-01-10 11:53:45.000000000 -0500
|
||
|
|
***************
|
||
|
|
*** 812,816 ****
|
||
|
|
rl_getc (FILE *stream)
|
||
|
|
{
|
||
|
|
! int result;
|
||
|
|
unsigned char c;
|
||
|
|
int fd;
|
||
|
|
--- 812,816 ----
|
||
|
|
rl_getc (FILE *stream)
|
||
|
|
{
|
||
|
|
! int result, ostate, osig;
|
||
|
|
unsigned char c;
|
||
|
|
int fd;
|
||
|
|
***************
|
||
|
|
*** 823,828 ****
|
||
|
|
--- 823,842 ----
|
||
|
|
while (1)
|
||
|
|
{
|
||
|
|
+ osig = _rl_caught_signal;
|
||
|
|
+ ostate = rl_readline_state;
|
||
|
|
+
|
||
|
|
RL_CHECK_SIGNALS ();
|
||
|
|
|
||
|
|
+ #if defined (READLINE_CALLBACKS)
|
||
|
|
+ /* Do signal handling post-processing here, but just in callback mode
|
||
|
|
+ for right now because the signal cleanup can change some of the
|
||
|
|
+ callback state, and we need to either let the application have a
|
||
|
|
+ chance to react or abort some current operation that gets cleaned
|
||
|
|
+ up by rl_callback_sigcleanup(). If not, we'll just run through the
|
||
|
|
+ loop again. */
|
||
|
|
+ if (osig != 0 && (ostate & RL_STATE_CALLBACK))
|
||
|
|
+ goto postproc_signal;
|
||
|
|
+ #endif
|
||
|
|
+
|
||
|
|
/* We know at this point that _rl_caught_signal == 0 */
|
||
|
|
|
||
|
|
***************
|
||
|
|
*** 888,891 ****
|
||
|
|
--- 902,908 ----
|
||
|
|
|
||
|
|
handle_error:
|
||
|
|
+ osig = _rl_caught_signal;
|
||
|
|
+ ostate = rl_readline_state;
|
||
|
|
+
|
||
|
|
/* If the error that we received was EINTR, then try again,
|
||
|
|
this is simply an interrupted system call to read (). We allow
|
||
|
|
***************
|
||
|
|
*** 928,933 ****
|
||
|
|
--- 945,959 ----
|
||
|
|
#endif /* SIGALRM */
|
||
|
|
|
||
|
|
+ postproc_signal:
|
||
|
|
+ /* POSIX says read(2)/pselect(2)/select(2) don't return EINTR for any
|
||
|
|
+ reason other than being interrupted by a signal, so we can safely
|
||
|
|
+ call the application's signal event hook. */
|
||
|
|
if (rl_signal_event_hook)
|
||
|
|
(*rl_signal_event_hook) ();
|
||
|
|
+ #if defined (READLINE_CALLBACKS)
|
||
|
|
+ else if (osig == SIGINT && (ostate & RL_STATE_CALLBACK) && (ostate & (RL_STATE_ISEARCH|RL_STATE_NSEARCH|RL_STATE_NUMERICARG)))
|
||
|
|
+ /* just these cases for now */
|
||
|
|
+ _rl_abort_internal ();
|
||
|
|
+ #endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
*** ../readline-8.2/patchlevel 2013-11-15 08:11:11.000000000 -0500
|
||
|
|
--- patchlevel 2014-03-21 08:28:40.000000000 -0400
|
||
|
|
***************
|
||
|
|
*** 1,3 ****
|
||
|
|
# Do not edit -- exists only for use by patch
|
||
|
|
|
||
|
|
! 5
|
||
|
|
--- 1,3 ----
|
||
|
|
# Do not edit -- exists only for use by patch
|
||
|
|
|
||
|
|
! 6
|