From 976707d45233f15bafb6d03f51cfd9f641583caf Mon Sep 17 00:00:00 2001
From: deva <deva>
Date: Thu, 20 Jul 2006 20:35:10 +0000
Subject: Added getopt Cleaned out the old daemon code. No need for it anymore.
 Added support for options using getopt - inspired by a patch supplied by
 Bertho Stultiens. Moved the daemon code to main, and rendered miav_damon
 unnecessary.

---
 server/miav_server.cc | 159 ++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 155 insertions(+), 4 deletions(-)

(limited to 'server/miav_server.cc')

diff --git a/server/miav_server.cc b/server/miav_server.cc
index 2005afd..b1dfcac 100644
--- a/server/miav_server.cc
+++ b/server/miav_server.cc
@@ -27,24 +27,175 @@
 #include <config.h>
 
 #include "miav_server.h"
-#include "miav_daemon.h"
 #include "miav_config.h"
 
 #include "info_console.h"
 
 #include <stdio.h>
+#include <string.h>
+
+#include "server.h"
+#include "socket.h"
+
+#include <signal.h>
+#include <errno.h>
+
+// For getpwent and getgrent
+#include <sys/types.h>
+#include <grp.h>
+#include <pwd.h>
+
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#elif defined(HAVE_STDLIB_H)	// Solaris has getopt() here
+#include <stdlib.h>
+#else
+#error "Don't know where getopt() is prototyped"
+#endif
+
+static const char usage_str[] =
+"Usage: %s [options]\n"
+"Options:\n"
+"  -c file  Read configfile from 'file'\n"
+"  -i       Run in interactive mode (non-background mode)\n"
+"  -h       This message\n"
+;
+
+static char *config_file = ETC"/miav.conf";
 
 /** 
  * This function starts the MIaV server.
  */
 int main(int argc, char *argv[])
 {
-  MiavDaemon daemon;
+  int optc;
+  int lose = 0;
+  bool interactive = false;
+
+  // Parse the commandline
+  while((optc = getopt(argc, argv, "c:ih")) != EOF) {
+    switch(optc) {
+    case 'c':
+      config_file = strdup(optarg);
+      if(!config_file) {
+        fprintf(stderr, "Fatal: out of memory\n");
+        return 1;
+      }
+      break;
+    case 'i':
+      interactive = true;
+      break;
+    case 'h':
+      fprintf(stdout, usage_str, argv[0]);
+      return 0;
+    default:
+      lose++;
+      break;
+    }
+  }
+
+  if(lose) {
+    // Error message was printed by getopt
+    return 1;
+  }
+
+  fprintf(stderr, "Using config file [%s]\n", config_file);
+
+  MiavConfig cfg(config_file);
+  MIaV::initConfig(&cfg);
 
-  MiavConfig cfg(ETC"/miav.conf");
+  InfoConsole info;
+  MIaV::initInfo(&info);
 
   string *user = cfg.readString("server_user");
   string *group = cfg.readString("server_group");
+  
+  // Fetch user id
+  int uid = -1;
+  struct passwd *p = getpwent();
+  while(p) {
+    if(strcmp(p->pw_name, user->c_str()) == 0) uid = p->pw_uid;
+    p = getpwent();
+  }
+  if(uid == -1) {
+    fprintf(stderr, "Could not find user \"%s\" in /etc/passwd file.\n", user->c_str());
+  }
+
+  // Fetch group id
+  int gid = -1;
+  struct group *g = getgrent();
+  while(g) {
+    if(strcmp(g->gr_name, group->c_str()) == 0) gid = g->gr_gid;
+    g = getgrent();
+  }
+  if(gid == -1) {
+    fprintf(stderr, "Could not find group \"%s\" in /etc/group file.\n", group->c_str());
+  }
+
+  if(!interactive) {
+    fprintf(stderr, "Entering daemon mode\n");
+    daemon(0,0);
+    signal (SIGTERM, SIG_IGN);
+    signal (SIGINT, SIG_IGN);
+    signal (SIGHUP, SIG_IGN);
+  } else {
+    fprintf(stderr, "Running interactive\n");
+  }
+
+  int port = MIaV::config->readInt("server_port");
+  pid_t childpid; // variable to store the child's pid
+
+  signal(SIGCLD, SIG_IGN);  // Ved SIGCHILD til IGNORE maa wait/waitpid ikke kaldes 
+                            //   (ellers kommer der kernel-brok)
+  
+  MIaV::info->info("Starting MIaV server v. %s", VERSION);
+  MIaV::info->info("Listening on port %d", port);
+  Socket *socket = new Socket(port);
+
+  if(socket->hasError()) {
+    MIaV::info->error("Listening socket has errors, quitting.");
+    delete socket;
+    return 1;
+  }
+
+  while(1) {
+    Socket *csocket = new Socket(socket->slisten());
+
+    if(socket->hasError()) {
+      MIaV::info->error("Server socket has errors, quitting.");
+      delete csocket;
+      break;
+    }
+
+    if(csocket->hasError()) {
+      MIaV::info->error("Child socket has errors, quitting.");
+      delete csocket;
+      break;
+    }
+
+    if(!csocket->isConnected()) {
+      MIaV::info->error("Child socket is not connected, quitting.");
+      delete csocket;
+      break;
+    }
+
+    childpid = fork();
+      
+    switch(childpid) {
+    case -1: // fork() returns -1 on failure
+      MIaV::info->log("Fork error: %s", strerror(errno));
+      exit(1);
+    case 0: // fork() returns 0 to the child process
+      delete socket; // Close listen socket.
+      newConnection(csocket);
+      delete csocket; // Close communication socket.
+      exit(0);
+      
+    default: // fork() returns new pid to the parent process
+      break;
+    }
+  }
 
-  return daemon.run(user->c_str(), group->c_str());
+  delete socket;
+  return 0;
 }
-- 
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