Test program to look at Apache timount signal.

diff --git a/sources/testsignalcgi.c b/sources/testsignalcgi.c
new file mode 100644 (file)
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+++ b/sources/testsignalcgi.c
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+/* testsignalcgi.c
+ * 
+ * Copyright (C) 2002 Simone Piccardi
+ * 
+ * This program 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 of the License, or (at
+ * your option) any later version.
+ * 
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/****************************************************************
+ *
+ * Program testsignalcgi
+ * CGI to test timout signals sent by apache
+ *
+ * Author: Simone Piccardi
+ * May 2011
+ *
+ * Usage: cgi-bin for apache.
+ * Called by downloading something like:
+ * http://localhost/cgi-bin/testsinglacgi
+ *
+ ****************************************************************/
+/* 
+ * Include needed headers
+ */
+#include <unistd.h>      /* unix standard library */
+#include <stdio.h>      /* standard I/O library */
+#include <stdlib.h>     /* C standard library */
+#include <string.h>     /* C strings library */
+#include <signal.h>      /* signal constants, types and functions */
+#include <time.h>
+
+void sig_hand(int, siginfo_t *, void *);
+typedef void SigFunc(int, siginfo_t *, void *);
+/* Function Signal: Initialize a signal handler. See SigHand.c */
+SigFunc * Signal(int signo, SigFunc *func);
+
+FILE * file;
+time_t t;
+
+/* Program begin */
+int main(int argc, char *argv[], char *envp[])
+{
+/*
+ * Variables definition         
+ */
+    char content[]="Content-type: text/html\n\n";
+    int i;
+    struct sigaction new_handl, old_handl;
+    /* write mime-type to stdout */ 
+    write(STDOUT_FILENO, content, strlen(content));
+    file = fopen("/tmp/testcgi.out","w+");
+    Signal(SIGPIPE,sig_hand);
+    Signal(SIGQUIT,sig_hand);
+    Signal(SIGTERM,sig_hand);
+    Signal(SIGINT,sig_hand);
+    Signal(SIGHUP,sig_hand);
+    Signal(SIGUSR1,sig_hand);
+    Signal(SIGUSR2,sig_hand);
+    Signal(SIGIO,sig_hand);
+    Signal(SIGIO,sig_hand);
+    Signal(SIGURG,sig_hand);
+    Signal(SIGABRT,sig_hand);
+    pause();
+    t = time(NULL);
+    fprintf(stdout, "Exit time: %s", ctime(&t));
+    fprintf(file, "Exit time: %s", ctime(&t));
+    exit(0);
+}
+
+/*
+ * Signal Handler to print signal
+ */
+void sig_hand(int sig, siginfo_t * siginfo, void *ptr) {
+
+    /* just return to interrupt sigsuspend */
+    pid_t pid;
+    t = time(NULL);
+    fprintf(stdout, "Received time: %s", ctime(&t));
+    fprintf(file, "Received time: %s", ctime(&t));
+    fprintf(stdout, "Signal is: %i\n", sig);
+    pid=getpid();
+    fprintf(file, "My pid is: %i, sending pid %i, uid %i\n", 
+           pid,siginfo->si_pid,siginfo->si_uid);
+    fprintf(file, "Signal is: %i,%i, err %i, code %i\n", 
+           sig,siginfo->si_signo,siginfo->si_errno,siginfo->si_code);
+    sleep(1);
+    t = time(NULL);
+    fprintf(stdout, "Printed time: %s", ctime(&t));
+    fprintf(file, "Printed time: %s", ctime(&t));
+}
+
+inline SigFunc * Signal(int signo, SigFunc *func) 
+{
+    struct sigaction new_handl, old_handl;
+    new_handl.sa_sigaction = func;             /* set signal handler */
+    /* clear signal mask: no signal blocked during execution of func */
+    sigemptyset(&new_handl.sa_mask);
+    new_handl.sa_flags=SA_SIGINFO; 
+    /* change action for signo signal */
+    sigaction(signo, &new_handl, &old_handl);
+    return (old_handl.sa_sigaction);
+}