1 files changed, 138 insertions, 0 deletions
diff --git a/src/server_find.c b/src/server_find.c
new file mode 100644
index 0000000..a2934a8
--- /dev/null
+++ b/src/server_find.c
@@ -0,0 +1,138 @@
+/*
+ * active port forwarder - software for secure forwarding
+ * Copyright (C) 2003-2007 jeremian <jeremian [at] poczta.fm>
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <config.h>
+#include <assert.h>
+#include <string.h>
+
+#include "server_find.h"
+
+/*
+ * Function name: find_client
+ * Description: Returns the client number with free user slots.
+ * Arguments: ptr - the server realm
+ *            mode - the strategy of client choosing
+ *            usrclipair - the number of usrclipair
+ * Returns: The client number with free user slots.
+ */
+
+int
+find_client(ServerRealm* ptr, char mode, int usrclipair)
+{
+  int i;
+  assert(ptr != NULL);
+  switch(mode) {
+    case 1: { /* fill first client before go to next */
+              for (i = 0; i < ServerRealm_get_clientsLimit(ptr); ++i) {
+                if ((ConnectClient_get_state(ServerRealm_get_clientsTable(ptr)[i]) ==
+                      CONNECTCLIENT_STATE_ACCEPTED) &&
+                    (ConnectClient_get_usrCliPair(ServerRealm_get_clientsTable(ptr)[i]) == usrclipair)) {
+                  if (ConnectClient_get_connected(ServerRealm_get_clientsTable(ptr)[i]) <
+                      ConnectClient_get_limit(ServerRealm_get_clientsTable(ptr)[i])) {
+                    return i;
+                  }
+                }
+              }
+              break;
+            }
+    default: {
+               return 0;
+             }
+  }
+  return 0;
+}
+
+/*
+ * Function name: find_usernum
+ * Description: Finds the free user slot, fill it and returns its number.
+ * Arguments: ptr - the connected client
+ *            usernum - the connection number on the afserver
+ * Returns: The user number in the connected client on the afserver side.
+ */
+
+int
+find_usernum(ConnectClient* ptr, int usernum)
+{
+  int i;
+  assert(ptr != NULL);
+  for (i = 0; i < ConnectClient_get_limit(ptr); ++i) {
+    if (ConnectClient_get_users(ptr)[i] == -1) {
+      ConnectClient_get_users(ptr)[i] = usernum;
+      return i;
+    }
+  }
+  return -1;
+}
+
+/*
+ * Function name: find_previousFd
+ * Description: Finds the file descriptor bound previously to the given
+ *              host:serv.
+ * Arguments: table - the table of UsrCli structures
+ *            index - the current index of the search
+ *            host - the name of the host
+ *            serv - the name of the service (port)
+ * Returns: The previously bound file descriptor.
+ */
+
+int
+find_previousFd(UsrCli** table, int index, char* host, char* serv)
+{
+  int i;
+  assert(table != NULL);
+  assert(index >= 0);
+  for (i = 0; i < index; ++i) {
+    
+    if (UsrCli_get_manageHostName(table[i])) {
+      if (host) {
+        if (strcmp(UsrCli_get_listenHostName(table[i]), host)) {
+          continue;
+        }
+      }
+      else {
+        continue;
+      }
+    }
+    else {
+      if (host) {
+        continue;
+      }
+    }
+
+    if (UsrCli_get_managePortName(table[i])) {
+      if (serv) {
+        if (strcmp(UsrCli_get_managePortName(table[i]), serv)) {
+          continue;
+        }
+      }
+      else {
+        continue;
+      }
+    }
+    else {
+      if (serv) {
+        continue;
+      }
+    }
+
+    return UsrCli_get_manageFd(table[i]);
+  }
+  return -1;
+}