ability to send arbitrary signals

1 files changed, 19 insertions, 1 deletions

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);