Adding upstream version 5.1.upstream/5.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 140 insertions, 0 deletions

diff --git a/sig.h b/sig.h
new file mode 100644
index 0000000..a564e3c
--- /dev/null
+++ b/sig.h
@@ -0,0 +1,140 @@
+/* sig.h -- header file for signal handler definitions. */
+
+/* Copyright (C) 1994-2013 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 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.
+
+   You should have received a copy of the GNU General Public License
+   along with Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* Make sure that this is included *after* config.h! */
+
+#if !defined (_SIG_H_)
+#  define _SIG_H_
+
+#include "stdc.h"
+
+#include <signal.h>		/* for sig_atomic_t */
+
+#if !defined (SIGABRT) && defined (SIGIOT)
+#  define SIGABRT SIGIOT
+#endif
+
+#define sighandler RETSIGTYPE
+typedef RETSIGTYPE SigHandler PARAMS((int));
+
+#if defined (VOID_SIGHANDLER)
+#  define SIGRETURN(n)	return
+#else
+#  define SIGRETURN(n)	return(n)
+#endif /* !VOID_SIGHANDLER */
+
+/* Here is a definition for set_signal_handler () which simply expands to
+   a call to signal () for non-Posix systems.  The code for set_signal_handler
+   in the Posix case resides in general.c. */
+#if !defined (HAVE_POSIX_SIGNALS)
+#  define set_signal_handler(sig, handler) (SigHandler *)signal (sig, handler)
+#else
+extern SigHandler *set_signal_handler PARAMS((int, SigHandler *));	/* in sig.c */
+#endif /* _POSIX_VERSION */
+
+#if !defined (SIGCHLD) && defined (SIGCLD)
+#  define SIGCHLD SIGCLD
+#endif
+
+#if !defined (HAVE_POSIX_SIGNALS) && !defined (sigmask)
+#  define sigmask(x) (1 << ((x)-1))
+#endif /* !HAVE_POSIX_SIGNALS && !sigmask */
+
+#if !defined (HAVE_POSIX_SIGNALS)
+#  if !defined (SIG_BLOCK)
+#    define SIG_BLOCK 2
+#    define SIG_SETMASK 3
+#  endif /* SIG_BLOCK */
+
+/* sigset_t defined in config.h */
+
+/* Make sure there is nothing inside the signal set. */
+#  define sigemptyset(set) (*(set) = 0)
+
+/* Initialize the signal set to hold all signals. */
+#  define sigfillset(set) (*set) = sigmask (NSIG) - 1
+
+/* Add SIG to the contents of SET. */
+#  define sigaddset(set, sig) *(set) |= sigmask (sig)
+
+/* Delete SIG from signal set SET. */
+#  define sigdelset(set, sig) *(set) &= ~sigmask (sig)
+
+/* Is SIG a member of the signal set SET? */
+#  define sigismember(set, sig) ((*(set) & sigmask (sig)) != 0)
+
+/* Suspend the process until the reception of one of the signals
+   not present in SET. */
+#  define sigsuspend(set) sigpause (*(set))
+#endif /* !HAVE_POSIX_SIGNALS */
+
+/* These definitions are used both in POSIX and non-POSIX implementations. */
+
+#define BLOCK_SIGNAL(sig, nvar, ovar) \
+do { \
+  sigemptyset (&nvar); \
+  sigaddset (&nvar, sig); \
+  sigemptyset (&ovar); \
+  sigprocmask (SIG_BLOCK, &nvar, &ovar); \
+} while (0)
+
+#define UNBLOCK_SIGNAL(ovar) sigprocmask (SIG_SETMASK, &ovar, (sigset_t *) NULL)
+
+#if defined (HAVE_POSIX_SIGNALS)
+#  define BLOCK_CHILD(nvar, ovar) BLOCK_SIGNAL (SIGCHLD, nvar, ovar)
+#  define UNBLOCK_CHILD(ovar) UNBLOCK_SIGNAL(ovar)
+#else /* !HAVE_POSIX_SIGNALS */
+#  define BLOCK_CHILD(nvar, ovar) ovar = sigblock (sigmask (SIGCHLD))
+#  define UNBLOCK_CHILD(ovar) sigsetmask (ovar)
+#endif /* !HAVE_POSIX_SIGNALS */
+
+/* Extern variables */
+extern volatile sig_atomic_t sigwinch_received;
+extern volatile sig_atomic_t sigterm_received;
+
+extern int interrupt_immediately;	/* no longer used */
+extern int terminate_immediately;
+
+/* Functions from sig.c. */
+extern sighandler termsig_sighandler PARAMS((int));
+extern void termsig_handler PARAMS((int));
+extern sighandler sigint_sighandler PARAMS((int));
+extern void initialize_signals PARAMS((int));
+extern void initialize_terminating_signals PARAMS((void));
+extern void reset_terminating_signals PARAMS((void));
+extern void top_level_cleanup PARAMS((void));
+extern void throw_to_top_level PARAMS((void));
+extern void jump_to_top_level PARAMS((int)) __attribute__((__noreturn__));
+extern void restore_sigmask PARAMS((void));
+
+extern sighandler sigwinch_sighandler PARAMS((int));
+extern void set_sigwinch_handler PARAMS((void));
+extern void unset_sigwinch_handler PARAMS((void));
+
+extern sighandler sigterm_sighandler PARAMS((int));
+
+/* Functions defined in trap.c. */
+extern SigHandler *set_sigint_handler PARAMS((void));
+extern SigHandler *trap_to_sighandler PARAMS((int));
+extern sighandler trap_handler PARAMS((int));
+
+extern int block_trapped_signals PARAMS((sigset_t *, sigset_t *));
+extern int unblock_trapped_signals PARAMS((sigset_t *));
+#endif /* _SIG_H_ */