2 files changed, 4 insertions, 1 deletions

diff --git a/src/dudki.cc b/src/dudki.cc
index 91a3342..1f95be4 100644
--- a/src/dudki.cc
+++ b/src/dudki.cc
@@ -1,135 +1,137 @@
 #include <unistd.h>
 #include <signal.h>
 #include <syslog.h>
 #include <errno.h>
 #include <iostream>
 #include <fstream>
 #include <stdexcept>
+#include <cstring>
+#include <stdlib.h>
 using namespace std;
 #include "configuration.h"
 #include "util.h"
 
 #include "config.h"
 #ifdef HAVE_GETOPT_H
 # include <getopt.h>
 #endif
 
 #ifndef DEFAULT_CONF_FILE
 # define DEFAULT_CONF_FILE "/etc/dudki.conf"
 #endif
 
 #define PHEADER PACKAGE " Version " VERSION
 #define PCOPY   "Copyright (c) 2004-2006 Klever Group"
 
 bool finishing = false;
 bool restarting = false;
 static char **_argv = NULL;
 
 static void lethal_signal_handler(int signum) {
     syslog(LOG_NOTICE,"Lethal signal received. Terminating.");
     finishing = true;
 }
 static void sighup_handler(int signum) {
     syslog(LOG_NOTICE,"SUGHUP received, reloading.");
     restarting = finishing = true;
 }
 
 void check_herd(configuration& config) {
     process::prepare_herd();
     for(processes_t::iterator i=config.processes.begin();i!=config.processes.end();++i)
         i->second.check(i->first,config);
     process::unprepare_herd();
 }
 
 void signal_self(const configuration& config,int signum) {
     ifstream pids(config.pidfile.c_str(),ios::in);
     if(!pids)
         throw runtime_error("Can't detect running instance");
     pid_t pid = 0;
     pids >> pid;
     if(!pid)
         throw runtime_error("Can't detect running instance");
     if(pid==getpid())
         throw 0;
     if(kill(pid,signum))
         throw runtime_error("Failed to signal running instance");
 }
 
 int main(int argc,char **argv) {
     try {
         _argv = new char*[argc+1];
         if(!_argv)
             throw runtime_error("memory allocation problem at the very start");
         memmove(_argv,argv,sizeof(*_argv)*(argc+1));
         string config_file = DEFAULT_CONF_FILE;
         enum {
             op_default,
             op_work,
             op_signal,
             op_ensure,
             op_test
         } op = op_default;
         int op_signum = 0;
         while(true) {
         #defineSHORTOPTSTRING "f:hVLrkcets:"
 #ifdef HAVE_GETOPT_LONG
             static struct option opts[] = {
                 { "help", no_argument, 0, 'h' },
                 { "usage", no_argument, 0, 'h' },
                 { "version", no_argument, 0, 'V' },
                 { "license", no_argument, 0, 'L' },
                 { "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' },
                 { NULL, 0, 0, 0 }
             };
             int c = getopt_long(argc,argv,SHORTOPTSTRING,opts,NULL);
 #else /* !HAVE_GETOPT_LONG */
             int c = getopt(argc,argv,SHORTOPTSTRING);
 #endif /* /HAVE_GETOPT_LONG */
             if(c==-1)
                 break;
             switch(c) {
                 case 'h':
                     cerr << PHEADER << endl
                         << PCOPY << endl << endl
                         << " " << argv[0] << " [options] [processes]" << endl << endl <<
 #ifdef HAVE_GETOPT_LONG
                         " -h, --help\n"
                         " --usage         display this text\n"
                         " -V, --version   display version number\n"
                         " -L, --license   show license\n"
                         " -f filename, --config=filename\n"
                         "                 specify the configuration file to use\n"
                         "\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"
                         " -e, --ensure    ensure that dudki is running\n"
                         " -t, --test      test configuration file and exit"
 #else /* !HAVE_GETOPT_LONG */
                         " -h              display this text\n"
                         " -V              display version number\n"
                         " -L              show license\n"
                         " -f filename     specify the configuration file to use\n"
                         "\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"
                         " -e              ensure that dudki is running\n"
                         " -t              test configuration file and exit"
 #endif /* /HAVE_GETOPT_LONG */
                         << endl;
                     exit(0);
                     break;
diff --git a/src/process.cc b/src/process.cc
index 4807b98..3e9cc2b 100644
--- a/src/process.cc
+++ b/src/process.cc
@@ -1,243 +1,244 @@
 #include <stdio.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <signal.h>
 #include <pwd.h>
 #include <grp.h>
 #include <dirent.h>
 #include <sys/wait.h>
 #include <syslog.h>
+#include <stdlib.h>
 #include <errno.h>
 #include <iostream>
 #include <fstream>
 #include <sstream>
 #include <stdexcept>
 #include <string>
 #include <vector>
 using namespace std;
 #include "process.h"
 #include "configuration.h"
 
 static multimap<string,pid_t> procpids;
 
 void process::check() const {
     if(!pidfile.empty()) {
         signal(0);
     }else if(!process_name.empty()) {
         if(procpids.empty())
             gather_proc_info();
         if(procpids.find(process_name)==procpids.end())
             throw runtime_error("no such process");
     } // XXX: or else?
 }
 void process::check(const string& id,configuration& config) {
     try {
         check();
         patience = 0;
     }catch(exception& e) {
         if(patience>60) { // TODO: configurable
             patience = 0;
         }else{
             if(patience<10) { // TODO: configurable
                 syslog(LOG_NOTICE,"The process '%s' is down, trying to launch.",id.c_str());
                 do_notify(id,"Starting up",
                         "The named process seems to be down. Dudki will try\n"
                         "to revive it by running the specified command.\n",
                         config);
                 try {
                     launch(id,config);
                 }catch(exception& e) {
                     syslog(LOG_ERR,"Error trying to launch process '%s': %s",id.c_str(),e.what());
                 }
             }else if(patience==10){ // TODO: configurable like the above
                 syslog(LOG_NOTICE,"Giving up on process '%s' for a while",id.c_str());
                 do_notify(id,"Giving up",
                         "After a number of attempts to relaunch the named process\n"
                         "It still seems to be down. Dudki is giving up attempts\n"
                         "to revive the process for a while.\n",
                         config);
             }
             patience++;
         }
     }
 }
 
 void process::launch(const string& id,configuration& config) {
     uid_t uid = (uid_t)-1;
     gid_t gid = (gid_t)-1;
     if(!user.empty()) {
         struct passwd *ptmp = getpwnam(user.c_str());
         if(ptmp) {
             uid = ptmp->pw_uid;
             gid = ptmp->pw_gid;
         }else{
             errno=0;
             uid = strtol(user.c_str(),NULL,0);
             if(errno)
                 throw runtime_error("Failed to resolve User value to uid");
         }
     }
     if(!group.empty()) {
         struct group *gtmp = getgrnam(group.c_str());
         if(gtmp) {
             gid = gtmp->gr_gid;
         }else{
             errno = 0;
             gid = strtol(group.c_str(),NULL,0);
             if(errno)
                 throw runtime_error("Failed to reslove Group value to gid");
         }
     }
     pid_t p = fork();
     if(p<0)
         throw runtime_error(string(__PRETTY_FUNCTION__)+": failed to fork()");
     if(!p) {
         // child
         try {
             setsid();
             if(!group.empty()) {
                 if(user.empty()) {
                     if((getgid()!=gid) && setgid(gid))
                         throw runtime_error(string(__PRETTY_FUNCTION__)+": failed to setgid()");
                 }else{
                     if(initgroups(user.c_str(),gid))
                         throw runtime_error(string(__PRETTY_FUNCTION__)+": failed to initgroups()");
                 }
             }
             if(!chroot.empty()) {
                 if(::chroot(chroot.c_str()))
                     throw runtime_error(string(__PRETTY_FUNCTION__)+": failed to chroot()");
             }
             if(!user.empty()) {
                 if((getuid()!=uid) && setuid(uid))
                     throw runtime_error(string(__PRETTY_FUNCTION__)+": failed to setuid()");
             }
-            char *argv[] = { "/bin/sh", "-c", (char*)restart_cmd.c_str(), NULL };
+            char *argv[] = { const_cast<char*>("/bin/sh"), const_cast<char*>("-c"), (char*)restart_cmd.c_str(), NULL };
             close(0); close(1); close(2);
             execv("/bin/sh",argv);
         }catch(exception& e) {
             syslog(LOG_ERR,"Error trying to launch process '%s': %s",id.c_str(),e.what());
         }
         _exit(-1);
     }
     // parent
     int rv;
     if(waitpid(p,&rv,0)<0)
         throw runtime_error(string(__PRETTY_FUNCTION__)+": failed to waitpid()");
 }
 
 void process::do_notify(const string& id,const string& event,const string& description,configuration& config) {
     string the_notify;
     if(!notify.empty())
         the_notify=notify;
     else if(!config.notify.empty())
         the_notify=config.notify;
     else
         return;
     try {
         string::size_type colon = the_notify.find(':');
         if(colon==string::npos)
             throw runtime_error("invalid notify action specification");
         string nschema = the_notify.substr(0,colon);
         string ntarget = the_notify.substr(colon+1);
         if(nschema=="mailto") {
             notify_mailto(ntarget,id,event,description,config);
         }else
             throw runtime_error("unrecognized notification schema");
     }catch(exception& e) {
         syslog(LOG_ERR,"Notification error: %s",e.what());
     }
 }
 
 void process::notify_mailto(const string& email,const string& id,const string& event,const string& description,configuration& config) {
     int files[2];
     if(pipe(files))
         throw runtime_error("Failed to pipe()");
     pid_t pid = vfork();
     if(pid==-1) {
         close(files[0]);
         close(files[1]);
         throw runtime_error("Failed to vfork()");
     }
     if(!pid) {
         // child
         if(dup2(files[0],0)!=0)
             _exit(-1);
         close(1);
         close(files[0]);
         close(files[1]);
         execl("/usr/sbin/sendmail","usr/sbin/sendmail","-i",email.c_str(),NULL);
         _exit(-1);
     }
     // parent
     int status;
     if(waitpid(pid,&status,WNOHANG)) {
         close(files[0]);
         close(files[1]);
         throw runtime_error("vfork()ed sendmail child exited unexpectedly");
     }
     close(files[0]);
     FILE *mta = fdopen(files[1],"w");
     for(headers_t::const_iterator i=mailto_headers.begin();i!=mailto_headers.end();++i) {
         fprintf(mta,"%s: %s\n",i->first.c_str(),i->second.c_str());
     }
     for(headers_t::const_iterator i=config.mailto_headers.begin();i!=config.mailto_headers.end();++i) {
         if(mailto_headers.find(i->first)!=mailto_headers.end())
             continue;
         fprintf(mta,"%s: %s\n",i->first.c_str(),i->second.c_str());
     }
     fprintf(mta,
             "Subject: [%s] %s\n\n"
             "%s\n"
             "---\n"
             "This message was sent automatically by the 'dudki' daemon\n",
             id.c_str(), event.c_str(),
             description.c_str() );
     fclose(mta);
     waitpid(pid,&status,0);
     // TODO: check the return code
 }
 
 void process::signal(int signum) const {
     if(!pidfile.empty()) {
         ifstream pids(pidfile.c_str(),ios::in);
         if(!pids)
             throw runtime_error("no pidfile found");
         pid_t pid = 0;
         pids >> pid;
         pids.close();
         if(!pid)
             throw runtime_error("no pid in pidfile");
         if(kill(pid,signum))
             throw runtime_error("failed to signal process");
     }else if(!process_name.empty()) {
         if(procpids.empty())
             gather_proc_info();
         pair<multimap<string,pid_t>::const_iterator,multimap<string,pid_t>::const_iterator> range = procpids.equal_range(process_name);
         int count = 0;
         for(multimap<string,pid_t>::const_iterator i=range.first;i!=range.second;++i) {
             pid_t pid = i->second;
             if(kill(i->second,signum))
                 throw runtime_error("failed to signal process");
             count++;
         }
         if(!count)
             throw runtime_error("no running instance detected");
     }else
         throw runtime_error("nothing is known about the process");
 }
 
 void process::prepare_herd() {
     procpids.clear();
 }
 void process::unprepare_herd() {
     procpids.clear();
 }
 void process::gather_proc_info() {
     vector<pid_t> allpids;
     DIR *pd = opendir("/proc");
     if(!pd)
         throw runtime_error("failed to open /proc");
     struct dirent *pde;
     pid_t selfpid = getpid();
     while(pde=readdir(pd)) {