Integrate bash 3.2 version

This is merge of current Debian stable (Lenny) version of Bash
with Vyatta changes.

1 files changed, 393 insertions, 0 deletions

diff --git a/support/signames.c b/support/signames.c
new file mode 100644
index 0000000..46b07e3
--- /dev/null
+++ b/support/signames.c
@@ -0,0 +1,393 @@
+/* signames.c -- Create an array of signal names. */
+
+/* Copyright (C) 2006 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 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, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include <sys/types.h>
+#include <signal.h>
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if !defined (NSIG)
+#  define NSIG 64
+#endif
+
+/*
+ * Special traps:
+ *	EXIT == 0
+ *	DEBUG == NSIG
+ *	ERR == NSIG+1
+ *	RETURN == NSIG+2
+ */
+#define LASTSIG NSIG+2
+
+char *signal_names[2 * (LASTSIG)];
+
+#define signal_names_size (sizeof(signal_names)/sizeof(signal_names[0]))
+
+/* AIX 4.3 defines SIGRTMIN and SIGRTMAX as 888 and 999 respectively.
+   I don't want to allocate so much unused space for the intervening signal
+   numbers, so we just punt if SIGRTMAX is past the bounds of the
+   signal_names array (handled in configure). */
+#if defined (SIGRTMAX) && defined (UNUSABLE_RT_SIGNALS)
+#  undef SIGRTMAX
+#  undef SIGRTMIN
+#endif
+
+#if defined (SIGRTMAX) || defined (SIGRTMIN)
+#  define RTLEN 14
+#  define RTLIM 256
+#endif
+
+#if defined (BUILDTOOL)
+extern char *progname;
+#endif
+
+void
+initialize_signames ()
+{
+  register int i;
+#if defined (SIGRTMAX) || defined (SIGRTMIN)
+  int rtmin, rtmax, rtcnt;
+#endif
+
+  for (i = 1; i < signal_names_size; i++)
+    signal_names[i] = (char *)NULL;
+
+  /* `signal' 0 is what we do on exit. */
+  signal_names[0] = "EXIT";
+
+  /* Place signal names which can be aliases for more common signal
+     names first.  This allows (for example) SIGABRT to overwrite SIGLOST. */
+
+  /* POSIX 1003.1b-1993 real time signals, but take care of incomplete
+     implementations. Acoording to the standard, both, SIGRTMIN and
+     SIGRTMAX must be defined, SIGRTMIN must be stricly less than
+     SIGRTMAX, and the difference must be at least 7, that is, there
+     must be at least eight distinct real time signals. */
+
+  /* The generated signal names are SIGRTMIN, SIGRTMIN+1, ...,
+     SIGRTMIN+x, SIGRTMAX-x, ..., SIGRTMAX-1, SIGRTMAX. If the number
+     of RT signals is odd, there is an extra SIGRTMIN+(x+1).
+     These names are the ones used by ksh and /usr/xpg4/bin/sh on SunOS5. */
+
+#if defined (SIGRTMIN)
+  rtmin = SIGRTMIN;
+  signal_names[rtmin] = "SIGRTMIN";
+#endif
+
+#if defined (SIGRTMAX)
+  rtmax = SIGRTMAX;
+  signal_names[rtmax] = "SIGRTMAX";
+#endif
+
+#if defined (SIGRTMAX) && defined (SIGRTMIN)
+  if (rtmax > rtmin)
+    {
+      rtcnt = (rtmax - rtmin - 1) / 2;
+      /* croak if there are too many RT signals */
+      if (rtcnt >= RTLIM/2)
+	{
+	  rtcnt = RTLIM/2-1;
+#ifdef BUILDTOOL
+	  fprintf(stderr, "%s: error: more than %d real time signals, fix `%s'\n",
+		  progname, RTLIM, progname);
+#endif
+	}
+
+      for (i = 1; i <= rtcnt; i++)
+	{
+	  signal_names[rtmin+i] = (char *)malloc(RTLEN);
+	  if (signal_names[rtmin+i])
+	    sprintf (signal_names[rtmin+i], "SIGRTMIN+%d", i);
+	  signal_names[rtmax-i] = (char *)malloc(RTLEN);
+	  if (signal_names[rtmax-i])
+	    sprintf (signal_names[rtmax-i], "SIGRTMAX-%d", i);
+	}
+
+      if (rtcnt < RTLIM/2-1 && rtcnt != (rtmax-rtmin)/2)
+	{
+	  /* Need an extra RTMIN signal */
+	  signal_names[rtmin+rtcnt+1] = (char *)malloc(RTLEN);
+	  if (signal_names[rtmin+rtcnt+1])
+	    sprintf (signal_names[rtmin+rtcnt+1], "SIGRTMIN+%d", rtcnt+1);
+	}
+    }
+#endif /* SIGRTMIN && SIGRTMAX */
+
+#if defined (SIGLOST)	/* resource lost (eg, record-lock lost) */
+  signal_names[SIGLOST] = "SIGLOST";
+#endif
+
+/* AIX */
+#if defined (SIGMSG)	/* HFT input data pending */
+  signal_names[SIGMSG] = "SIGMSG";
+#endif
+
+#if defined (SIGDANGER)	/* system crash imminent */
+  signal_names[SIGDANGER] = "SIGDANGER";
+#endif
+
+#if defined (SIGMIGRATE) /* migrate process to another CPU */
+  signal_names[SIGMIGRATE] = "SIGMIGRATE";
+#endif
+
+#if defined (SIGPRE)	/* programming error */
+  signal_names[SIGPRE] = "SIGPRE";
+#endif
+
+#if defined (SIGVIRT)	/* AIX virtual time alarm */
+  signal_names[SIGVIRT] = "SIGVIRT";
+#endif
+
+#if defined (SIGALRM1)	/* m:n condition variables */
+  signal_names[SIGALRM1] = "SIGALRM1";
+#endif
+
+#if defined (SIGWAITING)	/* m:n scheduling */
+  signal_names[SIGWAITING] = "SIGWAITING";
+#endif
+
+#if defined (SIGGRANT)	/* HFT monitor mode granted */
+  signal_names[SIGGRANT] = "SIGGRANT";
+#endif
+
+#if defined (SIGKAP)	/* keep alive poll from native keyboard */
+  signal_names[SIGKAP] = "SIGKAP";
+#endif
+
+#if defined (SIGRETRACT) /* HFT monitor mode retracted */
+  signal_names[SIGRETRACT] = "SIGRETRACT";
+#endif
+
+#if defined (SIGSOUND)	/* HFT sound sequence has completed */
+  signal_names[SIGSOUND] = "SIGSOUND";
+#endif
+
+#if defined (SIGSAK)	/* Secure Attention Key */
+  signal_names[SIGSAK] = "SIGSAK";
+#endif
+
+/* SunOS5 */
+#if defined (SIGLWP)	/* special signal used by thread library */
+  signal_names[SIGLWP] = "SIGLWP";
+#endif
+
+#if defined (SIGFREEZE)	/* special signal used by CPR */
+  signal_names[SIGFREEZE] = "SIGFREEZE";
+#endif
+
+#if defined (SIGTHAW)	/* special signal used by CPR */
+  signal_names[SIGTHAW] = "SIGTHAW";
+#endif
+
+#if defined (SIGCANCEL)	/* thread cancellation signal used by libthread */
+  signal_names[SIGCANCEL] = "SIGCANCEL";
+#endif
+
+#if defined (SIGXRES)	/* resource control exceeded */
+  signal_names[SIGXRES] = "SIGXRES";
+#endif
+
+/* HP-UX */
+#if defined (SIGDIL)	/* DIL signal (?) */
+  signal_names[SIGDIL] = "SIGDIL";
+#endif
+
+/* System V */
+#if defined (SIGCLD)	/* Like SIGCHLD.  */
+  signal_names[SIGCLD] = "SIGCLD";
+#endif
+
+#if defined (SIGPWR)	/* power state indication */
+  signal_names[SIGPWR] = "SIGPWR";
+#endif
+
+#if defined (SIGPOLL)	/* Pollable event (for streams)  */
+  signal_names[SIGPOLL] = "SIGPOLL";
+#endif
+
+/* Unknown */
+#if defined (SIGWINDOW)
+  signal_names[SIGWINDOW] = "SIGWINDOW";
+#endif
+
+/* Linux */
+#if defined (SIGSTKFLT)
+  signal_names[SIGSTKFLT] = "SIGSTKFLT";
+#endif
+
+/* FreeBSD */
+#if defined (SIGTHR)	/* thread interrupt */
+  signal_names[SIGTHR] = "SIGTHR";
+#endif
+
+/* Common */
+#if defined (SIGHUP)	/* hangup */
+  signal_names[SIGHUP] = "SIGHUP";
+#endif
+
+#if defined (SIGINT)	/* interrupt */
+  signal_names[SIGINT] = "SIGINT";
+#endif
+
+#if defined (SIGQUIT)	/* quit */
+  signal_names[SIGQUIT] = "SIGQUIT";
+#endif
+
+#if defined (SIGILL)	/* illegal instruction (not reset when caught) */
+  signal_names[SIGILL] = "SIGILL";
+#endif
+
+#if defined (SIGTRAP)	/* trace trap (not reset when caught) */
+  signal_names[SIGTRAP] = "SIGTRAP";
+#endif
+
+#if defined (SIGIOT)	/* IOT instruction */
+  signal_names[SIGIOT] = "SIGIOT";
+#endif
+
+#if defined (SIGABRT)	/* Cause current process to dump core. */
+  signal_names[SIGABRT] = "SIGABRT";
+#endif
+
+#if defined (SIGEMT)	/* EMT instruction */
+  signal_names[SIGEMT] = "SIGEMT";
+#endif
+
+#if defined (SIGFPE)	/* floating point exception */
+  signal_names[SIGFPE] = "SIGFPE";
+#endif
+
+#if defined (SIGKILL)	/* kill (cannot be caught or ignored) */
+  signal_names[SIGKILL] = "SIGKILL";
+#endif
+
+#if defined (SIGBUS)	/* bus error */
+  signal_names[SIGBUS] = "SIGBUS";
+#endif
+
+#if defined (SIGSEGV)	/* segmentation violation */
+  signal_names[SIGSEGV] = "SIGSEGV";
+#endif
+
+#if defined (SIGSYS)	/* bad argument to system call */
+  signal_names[SIGSYS] = "SIGSYS";
+#endif
+
+#if defined (SIGPIPE)	/* write on a pipe with no one to read it */
+  signal_names[SIGPIPE] = "SIGPIPE";
+#endif
+
+#if defined (SIGALRM)	/* alarm clock */
+  signal_names[SIGALRM] = "SIGALRM";
+#endif
+
+#if defined (SIGTERM)	/* software termination signal from kill */
+  signal_names[SIGTERM] = "SIGTERM";
+#endif
+
+#if defined (SIGURG)	/* urgent condition on IO channel */
+  signal_names[SIGURG] = "SIGURG";
+#endif
+
+#if defined (SIGSTOP)	/* sendable stop signal not from tty */
+  signal_names[SIGSTOP] = "SIGSTOP";
+#endif
+
+#if defined (SIGTSTP)	/* stop signal from tty */
+  signal_names[SIGTSTP] = "SIGTSTP";
+#endif
+
+#if defined (SIGCONT)	/* continue a stopped process */
+  signal_names[SIGCONT] = "SIGCONT";
+#endif
+
+#if defined (SIGCHLD)	/* to parent on child stop or exit */
+  signal_names[SIGCHLD] = "SIGCHLD";
+#endif
+
+#if defined (SIGTTIN)	/* to readers pgrp upon background tty read */
+  signal_names[SIGTTIN] = "SIGTTIN";
+#endif
+
+#if defined (SIGTTOU)	/* like TTIN for output if (tp->t_local&LTOSTOP) */
+  signal_names[SIGTTOU] = "SIGTTOU";
+#endif
+
+#if defined (SIGIO)	/* input/output possible signal */
+  signal_names[SIGIO] = "SIGIO";
+#endif
+
+#if defined (SIGXCPU)	/* exceeded CPU time limit */
+  signal_names[SIGXCPU] = "SIGXCPU";
+#endif
+
+#if defined (SIGXFSZ)	/* exceeded file size limit */
+  signal_names[SIGXFSZ] = "SIGXFSZ";
+#endif
+
+#if defined (SIGVTALRM)	/* virtual time alarm */
+  signal_names[SIGVTALRM] = "SIGVTALRM";
+#endif
+
+#if defined (SIGPROF)	/* profiling time alarm */
+  signal_names[SIGPROF] = "SIGPROF";
+#endif
+
+#if defined (SIGWINCH)	/* window changed */
+  signal_names[SIGWINCH] = "SIGWINCH";
+#endif
+
+/* 4.4 BSD */
+#if defined (SIGINFO) && !defined (_SEQUENT_)	/* information request */
+  signal_names[SIGINFO] = "SIGINFO";
+#endif
+
+#if defined (SIGUSR1)	/* user defined signal 1 */
+  signal_names[SIGUSR1] = "SIGUSR1";
+#endif
+
+#if defined (SIGUSR2)	/* user defined signal 2 */
+  signal_names[SIGUSR2] = "SIGUSR2";
+#endif
+
+#if defined (SIGKILLTHR)	/* BeOS: Kill Thread */
+  signal_names[SIGKILLTHR] = "SIGKILLTHR";
+#endif
+
+  for (i = 0; i < NSIG; i++)
+    if (signal_names[i] == (char *)NULL)
+      {
+	signal_names[i] = (char *)malloc (18);
+	if (signal_names[i])
+	  sprintf (signal_names[i], "SIGJUNK(%d)", i);
+      }
+
+  signal_names[NSIG] = "DEBUG";
+  signal_names[NSIG+1] = "ERR";
+  signal_names[NSIG+2] = "RETURN";
+}