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-rw-r--r--CWRU/misc/sigstat.c226
1 files changed, 226 insertions, 0 deletions
diff --git a/CWRU/misc/sigstat.c b/CWRU/misc/sigstat.c
new file mode 100644
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--- /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);
+ }
+}