ability to send arbitrary signals

3 files changed, 29 insertions, 4 deletions

diff --git a/NEWS.xml b/NEWS.xml
index 646bb90..cd12d05 100644
--- a/NEWS.xml
+++ b/NEWS.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="us-ascii"?>
 <news>
  <version version="0.2" date="July 23rd, 2004">
-  <ni>now dudki sends signals to the processes being monitored from the command line</ni>
+  <ni>now dudki sends arbitrary signals to the processes being monitored from the command line</ni>
  </version>
  <version version="0.1" date="July 21st, 2004">
   <ni><kbd>initgroups()</kbd> called before executing <kbd>RestartCommand</kbd></ni>
diff --git a/man/dudki.8.in b/man/dudki.8.in
index 05db733..be60f53 100644
--- a/man/dudki.8.in
+++ b/man/dudki.8.in
@@ -1,10 +1,10 @@
-.TH dudki 8 "June 9th, 2004" "dudki(8)" "Klever Group (http://www.klever.net/)"
+.TH dudki 8 "July 23rd, 2004" "dudki(8)" "Klever Group (http://www.klever.net/)"
 .hla en
 .ds longopt @HAVE_GETOPT_LONG@
 
 .SH NAME
 
-dudki \- a process monitoring daemon
+dudki \- a process maintenance daemon
 
 .SH SYNOPSYS
 
@@ -22,6 +22,8 @@ dudki \- a process monitoring daemon
 .if \*[longopt] [\fB--reload\fR]
 [\fB-c\fR]
 .if \*[longopt] [\fB--check\fR]
+[\fB-s\fR \fIsignum\fR]
+.if \*[longopt] [\fB--signal=\fR\fIsignum\fR]
 [\fB-e\fR]
 .if \*[longopt] [\fB--ensure\fR]
 [\fB-t\fR]
@@ -55,6 +57,11 @@ Reload the running instance by sending the \fBSIGHUP\fR signal. Like with
 \fB-k\fR, if no process name specified on the command line, dudki sends
 \fBSIGHUP\fR to his own running instance.
 .TP
+.ie \*[longopt] \fB-s\fR \fIsignum\fR, \fB--signal=\fR\fIsignum\fR
+.el \fB-s\fR \fIsignum\fR
+Send arbitrary signal to the names processes (or self, but it doesn't make much
+sense).
+.TP
 .ie \*[longopt] \fB-c\fR, \fB--check\fR
 .el \fB-c\fR
 Check if dudki is running. Exit with non-zero status if not. The same target
diff --git a/src/dudki.cc b/src/dudki.cc
index e91ad5e..9562079 100644
--- a/src/dudki.cc
+++ b/src/dudki.cc
@@ -1,6 +1,7 @@
 #include <unistd.h>
 #include <signal.h>
 #include <syslog.h>
+#include <errno.h>
 #include <iostream>
 #include <fstream>
 #include <stdexcept>
@@ -68,7 +69,7 @@ int main(int argc,char **argv) {
         } op = op_default;
         int op_signum = 0;
         while(true) {
-        #defineSHORTOPTSTRING "f:hVLrkcet"
+        #defineSHORTOPTSTRING "f:hVLrkcets:"
 #ifdef HAVE_GETOPT_LONG
             static struct option opts[] = {
                 { "help", no_argument, 0, 'h' },
@@ -78,6 +79,7 @@ int main(int argc,char **argv) {
                 { "config", required_argument, 0, 'f' },
                 { "kill", no_argument, 0, 'k' },
                 { "reload", no_argument, 0, 'r' },
+                { "signal", required_argument, 0, 's' },
                 { "check", no_argument, 0, 'c' },
                 { "ensure", no_argument, 0, 'e' },
                 { "test", no_argument, 0, 't' },
@@ -104,6 +106,8 @@ int main(int argc,char **argv) {
                         "\n"
                         " -k, --kill      stop running instance (send SIGTERM)\n"
                         " -r, --reload    reload running instance (send SIGHUP)\n"
+                        " -s signum, --signal=signum\n"
+                        "                 send the specified signal to the running process\n"
                         " -c, --check     check if the process is running\n"
                         "     (the above commands operate on dudki itself if no\n"
                         "      process name has been specified)\n"
@@ -117,6 +121,7 @@ int main(int argc,char **argv) {
                         "\n"
                         " -k              stop running instance (send SIGTERM)\n"
                         " -r              reload running instance (send SIGHUP)\n"
+                        " -s signum       send the specified signal to the running process\n"
                         " -c              check if the process is running\n"
                         "     (the above commands operate on dudki itself if no\n"
                         "      process name has been specified)\n"
@@ -173,6 +178,19 @@ int main(int argc,char **argv) {
                     }
                     op = op_test;
                     break;
+                case 's':
+                    if(op!=op_default) {
+                        cerr << "Can't obey two or more orders at once" << endl;
+                        exit(1);
+                    }
+                    op = op_signal;
+                    errno = 0;
+                    op_signum = strtol(optarg,NULL,0);
+                    if(errno) {
+                        cerr << "Can't obtain the signal value" << endl;
+                        exit(1);
+                    }
+                    break;
                 default:
                     cerr << "Huh??" << endl;
                     exit(1);