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synced 2025-07-29 05:21:33 +03:00
Update readline to version 5.2. This fixes bug#18431.
This commit is contained in:
df@pippilotta.erinye.com
@ -1,6 +1,6 @@
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/* signals.c -- signal handling support for readline. */
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/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
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/* Copyright (C) 1987-2005 Free Software Foundation, Inc.
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This file is part of the GNU Readline Library, a library for
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reading lines of text with interactive input and history editing.
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@ -21,7 +21,9 @@
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59 Temple Place, Suite 330, Boston, MA 02111 USA. */
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#define READLINE_LIBRARY
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#include "config_readline.h"
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#if defined (HAVE_CONFIG_H)
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# include <config.h>
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#endif
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#include <stdio.h> /* Just for NULL. Yuck. */
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#include <sys/types.h>
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@ -129,7 +131,11 @@ rl_signal_handler (sig)
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#if !defined (HAVE_BSD_SIGNALS) && !defined (HAVE_POSIX_SIGNALS)
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/* Since the signal will not be blocked while we are in the signal
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handler, ignore it until rl_clear_signals resets the catcher. */
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# if defined (SIGALRM)
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if (sig == SIGINT || sig == SIGALRM)
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# else
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if (sig == SIGINT)
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# endif
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rl_set_sighandler (sig, SIG_IGN, &dummy_cxt);
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#endif /* !HAVE_BSD_SIGNALS && !HAVE_POSIX_SIGNALS */
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@ -139,17 +145,22 @@ rl_signal_handler (sig)
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rl_free_line_state ();
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/* FALLTHROUGH */
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case SIGTERM:
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#if defined (SIGTSTP)
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case SIGTSTP:
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case SIGTTOU:
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case SIGTTIN:
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#endif /* SIGTSTP */
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#if defined (SIGALRM)
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case SIGALRM:
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case SIGTERM:
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#endif
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#if defined (SIGQUIT)
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case SIGQUIT:
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#endif
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rl_cleanup_after_signal ();
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#if defined (HAVE_POSIX_SIGNALS)
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sigemptyset (&set);
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sigprocmask (SIG_BLOCK, (sigset_t *)NULL, &set);
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sigdelset (&set, sig);
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#else /* !HAVE_POSIX_SIGNALS */
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@ -162,7 +173,11 @@ rl_signal_handler (sig)
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signal (sig, SIG_ACK);
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#endif
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#if defined (HAVE_KILL)
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kill (getpid (), sig);
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#else
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raise (sig); /* assume we have raise */
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#endif
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/* Let the signal that we just sent through. */
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#if defined (HAVE_POSIX_SIGNALS)
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@ -274,13 +289,51 @@ rl_set_signals ()
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{
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sighandler_cxt dummy;
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SigHandler *oh;
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#if defined (HAVE_POSIX_SIGNALS)
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static int sigmask_set = 0;
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static sigset_t bset, oset;
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#endif
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#if defined (HAVE_POSIX_SIGNALS)
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if (rl_catch_signals && sigmask_set == 0)
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{
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sigemptyset (&bset);
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sigaddset (&bset, SIGINT);
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sigaddset (&bset, SIGINT);
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#if defined (SIGQUIT)
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sigaddset (&bset, SIGQUIT);
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#endif
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#if defined (SIGALRM)
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sigaddset (&bset, SIGALRM);
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#endif
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#if defined (SIGTSTP)
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sigaddset (&bset, SIGTSTP);
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#endif
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#if defined (SIGTTIN)
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sigaddset (&bset, SIGTTIN);
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#endif
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#if defined (SIGTTOU)
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sigaddset (&bset, SIGTTOU);
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#endif
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sigmask_set = 1;
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}
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#endif /* HAVE_POSIX_SIGNALS */
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if (rl_catch_signals && signals_set_flag == 0)
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{
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#if defined (HAVE_POSIX_SIGNALS)
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sigemptyset (&oset);
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sigprocmask (SIG_BLOCK, &bset, &oset);
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#endif
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rl_maybe_set_sighandler (SIGINT, rl_signal_handler, &old_int);
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rl_maybe_set_sighandler (SIGTERM, rl_signal_handler, &old_term);
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#if defined (SIGQUIT)
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rl_maybe_set_sighandler (SIGQUIT, rl_signal_handler, &old_quit);
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#endif
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#if defined (SIGALRM)
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oh = rl_set_sighandler (SIGALRM, rl_signal_handler, &old_alrm);
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if (oh == (SigHandler *)SIG_IGN)
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rl_sigaction (SIGALRM, &old_alrm, &dummy);
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@ -292,6 +345,7 @@ rl_set_signals ()
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if (oh != (SigHandler *)SIG_DFL && (old_alrm.sa_flags & SA_RESTART))
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rl_sigaction (SIGALRM, &old_alrm, &dummy);
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#endif /* HAVE_POSIX_SIGNALS */
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#endif /* SIGALRM */
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#if defined (SIGTSTP)
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rl_maybe_set_sighandler (SIGTSTP, rl_signal_handler, &old_tstp);
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@ -306,6 +360,10 @@ rl_set_signals ()
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#endif /* SIGTTIN */
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signals_set_flag = 1;
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#if defined (HAVE_POSIX_SIGNALS)
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sigprocmask (SIG_SETMASK, &oset, (sigset_t *)NULL);
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#endif
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}
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#if defined (SIGWINCH)
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@ -330,8 +388,12 @@ rl_clear_signals ()
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rl_sigaction (SIGINT, &old_int, &dummy);
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rl_sigaction (SIGTERM, &old_term, &dummy);
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#if defined (SIGQUIT)
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rl_sigaction (SIGQUIT, &old_quit, &dummy);
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#endif
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#if defined (SIGALRM)
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rl_sigaction (SIGALRM, &old_alrm, &dummy);
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#endif
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#if defined (SIGTSTP)
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rl_sigaction (SIGTSTP, &old_tstp, &dummy);
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@ -366,16 +428,18 @@ void
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rl_cleanup_after_signal ()
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{
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_rl_clean_up_for_exit ();
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(*rl_deprep_term_function) ();
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rl_clear_signals ();
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if (rl_deprep_term_function)
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(*rl_deprep_term_function) ();
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rl_clear_pending_input ();
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rl_clear_signals ();
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}
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/* Reset the terminal and readline state after a signal handler returns. */
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void
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rl_reset_after_signal ()
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{
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(*rl_prep_term_function) (_rl_meta_flag);
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if (rl_prep_term_function)
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(*rl_prep_term_function) (_rl_meta_flag);
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rl_set_signals ();
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}
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@ -396,7 +460,7 @@ rl_free_line_state ()
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_rl_kill_kbd_macro ();
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rl_clear_message ();
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_rl_init_argument ();
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_rl_reset_argument ();
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}
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#endif /* HANDLE_SIGNALS */
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