1 files changed, 226 insertions, 0 deletions
diff --git a/CWRU/misc/sigstat.c b/CWRU/misc/sigstat.c
new file mode 100644
index 0000000..9135baa
--- /dev/null
+++ b/CWRU/misc/sigstat.c
@@ -0,0 +1,226 @@
+/*
+ * sigstat - print out useful information about signal arguments
+ *
+ * Chet Ramey
+ * chet@po.cwru.edu
+ */
+
+/* Copyright (C) 1991-2009 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/>.
+*/
+
+#include <sys/types.h>
+#include <signal.h>
+#include <stdio.h>
+
+extern char	*strrchr();
+static char	*signames[NSIG];
+
+char	*progname;
+
+void	sigstat();
+
+main(argc, argv)
+int	argc;
+char	**argv;
+{
+	register int	i;
+	char	*t;
+
+	if (t = strrchr(argv[0], '/'))
+		progname = ++t;
+	else
+		progname = argv[0];
+	init_signames();
+	if (argc == 1) {
+		for (i = 1; i < NSIG; i++)
+			sigstat(i);
+		exit(0);
+	}
+	for (i = 1; i < argc; i++)
+		sigstat(atoi(argv[i]));
+	exit(0);
+}
+
+void
+sigstat(sig)
+int	sig;
+{
+	struct sigaction oact;
+	char *signame;
+	sigset_t set, oset;
+	int blocked;
+
+	if (sig < 0 || sig >= NSIG) {
+		fprintf(stderr, "%s: %d: signal out of range\n", progname, sig);
+		return;
+	}
+	signame = signames[sig];
+	sigemptyset(&oset);
+	sigprocmask(SIG_BLOCK, (sigset_t *)NULL, &oset);
+	if (sigismember(&oset, sig))
+		printf("%s: signal is blocked\n", signame);
+	sigaction(sig, (struct sigaction *)NULL, &oact);
+	if (oact.sa_handler == SIG_IGN)
+		printf("%s: signal is ignored\n", signame);
+	else if (oact.sa_handler == SIG_DFL)
+		printf("%s: signal is defaulted\n", signame);
+	else
+		printf("%s: signal is trapped (?)\n", signame);
+}
+
+init_signames()
+{
+	register int i;
+	bzero(signames, sizeof(signames));
+
+#if defined (SIGHUP)		/* hangup */
+  	signames[SIGHUP] = "SIGHUP";
+#endif
+#if defined (SIGINT)		/* interrupt */
+  	signames[SIGINT] = "SIGINT";
+#endif
+#if defined (SIGQUIT)		/* quit */
+  	signames[SIGQUIT] = "SIGQUIT";
+#endif
+#if defined (SIGILL)		/* illegal instruction (not reset when caught) */
+  	signames[SIGILL] = "SIGILL";
+#endif
+#if defined (SIGTRAP)		/* trace trap (not reset when caught) */
+  	signames[SIGTRAP] = "SIGTRAP";
+#endif
+#if defined (SIGABRT)		/*  */
+  	signames[SIGABRT] = "SIGABRT";
+#endif
+#if defined (SIGIOT)		/* IOT instruction */
+  	signames[SIGIOT] = "SIGIOT";
+#endif
+#if defined (SIGEMT)		/* EMT instruction */
+  	signames[SIGEMT] = "SIGEMT";
+#endif
+#if defined (SIGFPE)		/* floating point exception */
+  	signames[SIGFPE] = "SIGFPE";
+#endif
+#if defined (SIGKILL)		/* kill (cannot be caught or ignored) */
+  	signames[SIGKILL] = "SIGKILL";
+#endif
+#if defined (SIGBUS)		/* bus error */
+  	signames[SIGBUS] = "SIGBUS";
+#endif
+#if defined (SIGSEGV)		/* segmentation violation */
+  	signames[SIGSEGV] = "SIGSEGV";
+#endif
+#if defined (SIGSYS)		/* bad argument to system call */
+  	signames[SIGSYS] = "SIGSYS";
+#endif
+#if defined (SIGPIPE)		/* write on a pipe with no one to read it */
+  	signames[SIGPIPE] = "SIGPIPE";
+#endif
+#if defined (SIGALRM)		/* alarm clock */
+  	signames[SIGALRM] = "SIGALRM";
+#endif
+#if defined (SIGTERM)		/* software termination signal from kill */
+  	signames[SIGTERM] = "SIGTERM";
+#endif
+#if defined (SIGCLD)		/* Like SIGCHLD.  */
+  	signames[SIGCLD] = "SIGCLD";
+#endif
+#if defined (SIGPWR)		/* Magic thing for some machines. */
+  	signames[SIGPWR] = "SIGPWR";
+#endif
+#if defined (SIGPOLL)		/* For keyboard input?  */
+  	signames[SIGPOLL] = "SIGPOLL";
+#endif
+#if defined (SIGURG)		/* urgent condition on IO channel */
+  	signames[SIGURG] = "SIGURG";
+#endif
+#if defined (SIGSTOP)		/* sendable stop signal not from tty */
+  	signames[SIGSTOP] = "SIGSTOP";
+#endif
+#if defined (SIGTSTP)		/* stop signal from tty */
+  	signames[SIGTSTP] = "SIGTSTP";
+#endif
+#if defined (SIGCONT)		/* continue a stopped process */
+  	signames[SIGCONT] = "SIGCONT";
+#endif
+#if defined (SIGCHLD)		/* to parent on child stop or exit */
+  	signames[SIGCHLD] = "SIGCHLD";
+#endif
+#if defined (SIGTTIN)		/* to readers pgrp upon background tty read */
+  	signames[SIGTTIN] = "SIGTTIN";
+#endif
+#if defined (SIGTTOU)		/* like TTIN for output if (tp->t_local&LTOSTOP) */
+  	signames[SIGTTOU] = "SIGTTOU";
+#endif
+#if defined (SIGIO)		/* input/output possible signal */
+  	signames[SIGIO] = "SIGIO";
+#endif
+#if defined (SIGXCPU)		/* exceeded CPU time limit */
+  	signames[SIGXCPU] = "SIGXCPU";
+#endif
+#if defined (SIGXFSZ)		/* exceeded file size limit */
+  	signames[SIGXFSZ] = "SIGXFSZ";
+#endif
+#if defined (SIGVTALRM)		/* virtual time alarm */
+  	signames[SIGVTALRM] = "SIGVTALRM";
+#endif
+#if defined (SIGPROF)		/* profiling time alarm */
+  	signames[SIGPROF] = "SIGPROF";
+#endif
+#if defined (SIGWINCH)		/* window changed */
+  	signames[SIGWINCH] = "SIGWINCH";
+#endif
+#if defined (SIGLOST)		/* resource lost (eg, record-lock lost) */
+  	signames[SIGLOST] = "SIGLOST";
+#endif
+#if defined (SIGUSR1)		/* user defined signal 1 */
+  	signames[SIGUSR1] = "SIGUSR1";
+#endif
+#if defined (SIGUSR2)		/* user defined signal 2 */
+  	signames[SIGUSR2] = "SIGUSR2";
+#endif
+#if defined (SIGMSG)	/* HFT input data pending */
+  	signames[SIGMSG] = "SIGMSG";
+#endif
+#if defined (SIGPWR)	/* power failure imminent (save your data) */
+  	signames[SIGPWR] = "SIGPWR";
+#endif
+#if defined (SIGDANGER)	/* system crash imminent */
+  	signames[SIGDANGER] = "SIGDANGER";
+#endif
+#if defined (SIGMIGRATE)	/* migrate process to another CPU */
+  	signames[SIGMIGRATE] = "SIGMIGRATE";
+#endif
+#if defined (SIGPRE)	/* programming error */
+  	signames[SIGPRE] = "SIGPRE";
+#endif
+#if defined (SIGGRANT)	/* HFT monitor mode granted */
+  	signames[SIGGRANT] = "SIGGRANT";
+#endif
+#if defined (SIGRETRACT)	/* HFT monitor mode retracted */
+  	signames[SIGRETRACT] = "SIGRETRACT";
+#endif
+#if defined (SIGSOUND)	/* HFT sound sequence has completed */
+  	signames[SIGSOUND] = "SIGSOUND";
+#endif
+
+	for (i = 0; i < NSIG; i++)
+		if (signames[i] == (char *)NULL) {
+			signames[i] = (char *)malloc (16);;
+			sprintf (signames[i], "signal %d", i);
+	  	}
+}