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Imported from ../bash-2.05b.tar.gz.

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This commit is contained in:
Jari Aalto 2002-07-17 14:10:11 +00:00
commit 7117c2d221
362 changed files with 34387 additions and 15063 deletions
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23
trap.c
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@ -1,7 +1,7 @@
/* trap.c -- Not the trap command, but useful functions for manipulating
those objects. The trap command is in builtins/trap.def. */
/* Copyright (C) 1987, 1991 Free Software Foundation, Inc.
/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -36,7 +36,9 @@
#include "shell.h"
#include "input.h" /* for save_token_state, restore_token_state */
#include "signames.h"
#include "builtins.h"
#include "builtins/common.h"
#include "builtins/builtext.h"
#ifndef errno
extern int errno;
@ -75,6 +77,9 @@ extern int interrupt_immediately;
extern int last_command_exit_value;
extern int line_number;
extern sh_builtin_func_t *this_shell_builtin;
extern procenv_t wait_intr_buf;
/* The list of things to do originally, before we started trapping. */
SigHandler *original_signals[NSIG];
@ -99,6 +104,9 @@ int running_trap;
it. */
int trap_line_number;
/* The (trapped) signal received while executing in the `wait' builtin */
int wait_signal_received;
/* A value which can never be the target of a trap handler. */
#define IMPOSSIBLE_TRAP_HANDLER (SigHandler *)initialize_traps
@ -178,7 +186,7 @@ signal_name (sig)
char *ret;
/* on cygwin32, signal_names[sig] could be null */
ret = (sig > NSIG || sig < 0) ? "bad signal number" : signal_names[sig];
ret = (sig >= BASH_NSIG || sig < 0) ? "bad signal number" : signal_names[sig];
if (ret == NULL)
ret = "unrecognized signal number";
return ret;
@ -192,7 +200,7 @@ int
decode_signal (string)
char *string;
{
long sig;
intmax_t sig;
if (legal_number (string, &sig))
return ((sig >= 0 && sig < NSIG) ? (int)sig : NO_SIG);
@ -321,6 +329,12 @@ trap_handler (sig)
catch_flag = 1;
pending_traps[sig]++;
if (interrupt_immediately && this_shell_builtin && (this_shell_builtin == wait_builtin))
{
wait_signal_received = sig;
longjmp (wait_intr_buf, 1);
}
if (interrupt_immediately)
run_pending_traps ();
@ -680,7 +694,7 @@ _run_trap_internal (sig, tag)
void
run_debug_trap ()
{
if ((sigmodes[DEBUG_TRAP] & SIG_TRAPPED) && (sigmodes[DEBUG_TRAP] & SIG_INPROGRESS) == 0)
if ((sigmodes[DEBUG_TRAP] & SIG_TRAPPED) && ((sigmodes[DEBUG_TRAP] & SIG_INPROGRESS) == 0))
_run_trap_internal (DEBUG_TRAP, "debug trap");
}
@ -723,6 +737,7 @@ reset_signal (sig)
int sig;
{
set_signal_handler (sig, original_signals[sig]);
sigmodes[sig] &= ~SIG_TRAPPED;
}
/* Set the handler signal SIG to the original and free any trap