Bash-4.2 patch 13

[platform/upstream/bash.git] / trap.h

diff --git a/trap.h b/trap.h
index 1670231..8591ee2 100644 (file)
--- a/trap.h
+++ b/trap.h
@@ -1,30 +1,30 @@
 /* trap.h -- data structures used in the trap mechanism. */
 
-/* Copyright (C) 1993 Free Software Foundation, Inc.
+/* Copyright (C) 1993-2010 Free Software Foundation, Inc.
 
    This file is part of GNU Bash, the Bourne Again SHell.
 
-   Bash is free software; you can redistribute it and/or modify it under
-   the terms of the GNU General Public License as published by the Free
-   Software Foundation; either version 2, or (at your option) any later
-   version.
+   Bash is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
 
-   Bash is distributed in the hope that it will be useful, but WITHOUT ANY
-   WARRANTY; without even the implied warranty of MERCHANTABILITY or
-   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-   for more details.
+   Bash is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-   You should have received a copy of the GNU General Public License along
-   with Bash; see the file COPYING.  If not, write to the Free Software
-   Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+   You should have received a copy of the GNU General Public License
+   along with Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
 
-#if !defined (__TRAP_H__)
-#define __TRAP_H__
+#if !defined (_TRAP_H_)
+#define _TRAP_H_
 
 #include "stdc.h"
 
 #if !defined (SIG_DFL)
-#include <sys/types.h>
+#include "bashtypes.h"
 #include <signal.h>
 #endif /* SIG_DFL */
 
@@ -33,33 +33,73 @@
 #endif /* !NSIG */
 
 #define NO_SIG -1
-#define DEFAULT_SIG SIG_DFL
-#define IGNORE_SIG  SIG_IGN
+#define DEFAULT_SIG    SIG_DFL
+#define IGNORE_SIG     SIG_IGN
 
-#define signal_object_p(x) (decode_signal (x) != NO_SIG)
+/* Special shell trap names. */
+#define DEBUG_TRAP     NSIG
+#define ERROR_TRAP     NSIG+1
+#define RETURN_TRAP    NSIG+2
+#define EXIT_TRAP      0
 
-extern char *trap_list[NSIG];
+/* system signals plus special bash traps */
+#define BASH_NSIG      NSIG+3
+
+/* Flags values for decode_signal() */
+#define DSIG_SIGPREFIX 0x01            /* don't alllow `SIG' PREFIX */
+#define DSIG_NOCASE    0x02            /* case-insensitive comparison */
+
+/* A value which can never be the target of a trap handler. */
+#define IMPOSSIBLE_TRAP_HANDLER (SigHandler *)initialize_traps
+
+#define signal_object_p(x,f) (decode_signal (x,f) != NO_SIG)
+
+#define TRAP_STRING(s) \
+  (signal_is_trapped (s) && signal_is_ignored (s) == 0) ? trap_list[s] \
+                                                       : (char *)NULL
+
+extern char *trap_list[];
 
 /* Externally-visible functions declared in trap.c. */
 extern void initialize_traps __P((void));
+
 extern void run_pending_traps __P((void));
+
 extern void maybe_set_sigchld_trap __P((char *));
+extern void set_impossible_sigchld_trap __P((void));
 extern void set_sigchld_trap __P((char *));
+
+extern void set_debug_trap __P((char *));
+extern void set_error_trap __P((char *));
+extern void set_return_trap __P((char *));
+
+extern void set_sigint_trap __P((char *));
 extern void set_signal __P((int, char *));
+
 extern void restore_default_signal __P((int));
 extern void ignore_signal __P((int));
 extern int run_exit_trap __P((void));
+extern void run_trap_cleanup __P((int));
+extern int run_debug_trap __P((void));
+extern void run_error_trap __P((void));
+extern void run_return_trap __P((void));
+
 extern void free_trap_strings __P((void));
 extern void reset_signal_handlers __P((void));
 extern void restore_original_signals __P((void));
 
+extern void get_all_original_signals __P((void));
+
 extern char *signal_name __P((int));
 
-extern int decode_signal __P((char *));
+extern int decode_signal __P((char *, int));
 extern void run_interrupt_trap __P((void));
 extern int maybe_call_trap_handler __P((int));
-extern int signal_is_trapped __P((int));
 extern int signal_is_special __P((int));
+extern int signal_is_trapped __P((int));
 extern int signal_is_ignored __P((int));
+extern int signal_is_hard_ignored __P((int));
+extern void set_signal_ignored __P((int));
+extern int signal_in_progress __P((int));
 
-#endif /* __TRAP_H__ */
+#endif /* _TRAP_H_ */